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Wang CM, Li HK, Yin SS, Zhang XY, Li JT, Luo K, Yu L, Su Y, Bai X, Guo JW. First Report of Paramyrothecium breviseta Causing Target Spot on Amorphophallus muelleri in Yunnan, China. Plant Dis 2024. [PMID: 38616400 DOI: 10.1094/pdis-08-23-1576-pdn] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/16/2024]
Abstract
Amorphophallus muelleri is an Araceae plant with perennial tuber, widely used in food, pharmaceutical and chemical industry due to its richness in glucomannan. In April 2022, an outbreak of a target spot on A. muelleri plantlets was observed in a nursery in Ruili, Yunnan, China. The leafstalks of the diseased plantlets in the nursery turned brown and decayed (Fig.1 A-B), then gradually some water-soaked spots on the true leaves developed along the veins (Fig.1 A). Subquencely, the spots on the true leaves turned dark green to white-grayish in the center, which formed light to dark brown concentric rings with a target-like appearance surrounded by a yellow halo (Fig.1 C). When the temperature was 20-34℃ and the relatively humidity was 25-80%, dark-green to black sporodochia with white hypha appeared on the lower and upper leaf surfaces. Finally, 5-8% of the plants surveyed on 800 m2 of one-year-old plantlets in the nursery showed the symptoms and some plants with infected leafstalks would be death. Similar symptoms were also observed on about 10% of the transplanted plants surveyed on 12000 m2 (1.2 ha) of two-year-old plantlets in the field. Five diseased leaves from five distinct plantlets in the nursery were collected for pathogen isolation. Leaf pieces(5 x 5 mm) were cut from the edge of necrotic lesions, and surface-sterilized with 2.5% sodium hypochlorite for 1 min, 75% ethanol for 30 s, then rinsed 5 times by sterilized distilled water, finally put the leaf pieces on sterilized filter paper for 3-5 minutes to dry them and transferred onto potato dextrose agar (PDA) in petri dishes at 25℃ for three days. Five pure cultures identical to colony and conidial characteristics were isolated from five individual plants. The representative pure culture (M1) was grayish-white and circular colonies were 7.50 cm in diamter after 15 days at 25℃, with dark green concentric rings of sporodochia, the dorsal view of the colonies were yellowish. Conidia were aseptate, smooth, cylindrical, 5.00-6.25 (5.71) x 1.25-1.67 (1.63) µm (n = 20) rounded at both ends. A spore suspension (1 x 106 spores/ml) was prepared by harvesting spores from 15-day-old cultures grown in the dark at 25℃, then a thirty-ml of spore suspension was sprayed on the healthy leaves of 10 two-year-old plantlets. Thirty-ml of sterile water was sprayed on the healthy leaves of another 10 seedlings and used as the control. All seedlings were placed in a nursery at 20 to 34℃ and a relative humidity of 25 to 80%. Similar symptoms (Fig.1 D-F) to those observed in the nursery and field developed on all the 10 seedlings inoculated with M1 after two days, but not on the control leaves. The pathogenicity tests were repeated for three times. Fungal cultures reisolated from the infected leaves were identical to the original colonies and conidia, completing Koch's postulates. The internal transcribed spacer (ITS, primers ITS1 and ITS4) region of ribosomal DNA (OQ553785), calmodulin (cmdA, primers CAL-228F and CAL2Rd)(OQ559103), RNA polymerase II second largest subunit (rpb2, primers RPB2-5F2 and RPB2-7cR) (OQ559104) and β-tubulin (tub2, primers Bt2a and Bt2b) (OQ559105) of M1 had 100%, 98.52%, 98.98% and 98.98% identity with the sequences of Paramyrothecium breviseta CBS544.75 (KU846289 for ITS, KU846262 for cmdA, KU846351 for rpb2, and KU846406 for tub2), respectively. In the phylogenic tree based on ITS, cmdA, rpb2 and tub2 gene sequences, the pure culture M1 clustered with P. breviseta CBS544.75, SDBR-CMU387, DRL4 and DRL3, which has been reported as the pathogen of leaf spot of Coffea arabica in China, C. canephora in China and Thailand (Wu et al. 2021; Withee et al. 2022). Molecular and morphological observations showed the pure culture M1 were P. breviseta (Withee et al. 2022), in addition the disease was named as target spot dueing to the typical target symptom on the leaves. To our knowledge, this is the first report of P. breviseta on A. muelleri from Yunnan, China, as well as worldwide. This disease can caused serious economic losses of A. muelleri dueing to that it can result 5-8% death of the plants in the nursery.
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Affiliation(s)
- Chun-Mei Wang
- Dehong Tropical Agriculture Research Institute of Yunnan, Ruili, China;
| | - Hong-Kun Li
- Dehong Tropical Agriculture Research Institute of Yunnan, Ruili, Yunnan, China;
| | - Shan-Shan Yin
- Dehong Tropical Agriculture Research Institute of Yunnan, Ruili, Yunnan, China;
| | - Xiao-Yun Zhang
- Dehong Tropical Agriculture Research Institute of Yunnan, Ruili, Yunnan, China;
| | - Jin-Tao Li
- Dehong Tropical Agriculture Research Institute of Yunnan, Ruili, Yunnan, China;
| | - Kai Luo
- Dehong Tropical Agriculture Research Institute of Yunnan, Ruijing Road, Ruili, Yunnan, China, Ruili, Yunnan, China, 678600;
| | - Lei Yu
- Kunming University, 162634, College of Agronomy/Yunnan Urban Agricultural Engineering & Technological Research Center, Add: No.2 Puxin Road, Economic and Technological Development Zone, Kunming 650214, Yunnan, P. R. China, Kunming, China, 650214;
| | | | - Xuehui Bai
- Dehong Institute of Tropical Agricultural in Yunnan Province, Ruili, Yunnan, China;
| | - Jian-Wei Guo
- Kunming Institute of Botany Chinese Academy of Sciences, 26445, CAS Key Laboratory for Plant Diversity and Biogeography of East Asia, 132# Lanhei Road, Heilongtan, Kunming 650201, Yunnan, Chin, Kunming, China, 650201
- Kunming University, 162634, Yunnan Research Center of Urban Agricultural Engineering and Technology, College of Agronomy, Kunming, China, 650214;
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Guo JW, Xiao Y. [Impact of COVID-19 on the treatment of sleep medicine]. Zhonghua Jie He He Hu Xi Za Zhi 2024; 47:292-296. [PMID: 38448185 DOI: 10.3760/cma.j.cn112147-20230809-00056] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 03/08/2024]
Abstract
The outbreak of coronavirus disease 2019 (COVID-19) has become a major threat to the global healthcare system. As an airborne disease, COVID-19 posed a great challenge to the management of sleep medicine. Given the increased risk of adverse events in obstructive sleep apnea patients infected with COVID-19, strategies have been proposed worldwide. These include standard treatment procedure, use of self-protect equipment, telemedicine services, development of machine learning and portable monitoring, and in-home sleep monitoring and titration. This review aims to introduce the impact of COVID-19 on the operation of sleep medicine landscape and provide advice on public health care emergency.
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Affiliation(s)
- J W Guo
- Department of Respiratory and Critical Care Medicine, Peking Union Medical College Hospital, Peking Union Medical College Chinese Academy of Medical Sciences, Beijing 100730, China
| | - Y Xiao
- Department of Respiratory and Critical Care Medicine, Peking Union Medical College Hospital, Peking Union Medical College Chinese Academy of Medical Sciences, Beijing 100730, China
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Liang J, Chen YL, Lu RL, Guo JW, Hong XP, Liu DZ. [Research progress of serum biomarkers in interstitial lung disease associated with connective tissue disease]. Zhonghua Nei Ke Za Zhi 2024; 63:310-315. [PMID: 38448195 DOI: 10.3760/cma.j.cn112138-20231005-00182] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 03/08/2024]
Affiliation(s)
- J Liang
- The Second Clinical Medicine School of Jinan University, Shenzhen 518020, China
| | - Y L Chen
- Department of Rheumatology and Immunology, Shenzhen People's Hospital, the Second Clinical Medical School of Jinan University, Shenzhen 518020, China
| | - R L Lu
- The Second Clinical Medicine School of Jinan University, Shenzhen 518020, China
| | - J W Guo
- The Second Clinical Medicine School of Jinan University, Shenzhen 518020, China
| | - X P Hong
- Department of Rheumatology and Immunology, Shenzhen People's Hospital, the Second Clinical Medical School of Jinan University, Shenzhen 518020, China
| | - D Z Liu
- Department of Rheumatology and Immunology, Shenzhen People's Hospital, the Second Clinical Medical School of Jinan University, Shenzhen 518020, China
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Huo QF, Zhu LJ, Guo JW, Jiang YA, Zhao J. Effects of ulinastatin combined with dexmedetomidine on cognitive dysfunction and emergence agitation in elderly patients who underwent total hip arthroplasty. World J Psychiatry 2024; 14:26-35. [PMID: 38327895 PMCID: PMC10845226 DOI: 10.5498/wjp.v14.i1.26] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/30/2023] [Revised: 10/11/2023] [Accepted: 12/05/2023] [Indexed: 01/19/2024] Open
Abstract
BACKGROUND With the continuous growth of the modern elderly population, the risk of fracture increases. Hip fracture is a common type of fracture in older people. Total hip arthroplasty (THA) has significant advantages in relieving chronic pain and promoting the recovery of hip joint function. AIM To investigate the effect of ulinastatin combined with dexmedetomidine (Dex) on the incidences of postoperative cognitive dysfunction (POCD) and emergence agitation in elderly patients who underwent THA. METHODS A total of 397 patients who underwent THA from February 2019 to August 2022. We conducted a three-year retrospective cohort study in Shaanxi Provincial People's Hospital. Comprehensive demographic data were obtained from the electronic medical record system. We collected preoperative, intraoperative, and postoperative data. One hundred twenty-nine patients who were administered Dex during the operation were included in the Dex group. One hundred fifty patients who were intravenously injected with ulinastatin 15 min before anesthesia induction were included in the ulinastatin group. One hundred eighteen patients who were administered ulinastatin combined with Dex during the operation were included in the Dex + ulinastatin group. The patients' perioperative conditions, hemodynamic indexes, postoperative Mini-Mental State Examination (MMSE) scores, Ramsay score, incidence of POCD, and serum inflammatory cytokines were evaluated. RESULTS There was a significant difference in the 24 h visual analogue scale score among the three groups, and the score in the Dex + ulinastatin group was the lowest (P < 0.05). Compared with the Dex and ulinastatin group, the MMSE scores of the Dex + ulinastatin group were significantly increased at 1 and 7 d after the operation (all P < 0.05). Compared with those in the Dex and ulinastatin groups, incidence of POCD, levels of serum inflammatory cytokines in the Dex + ulinastatin group were significantly decreased at 1 and 7 d after the operation (all P < 0.05). The observer's assessment of the alertness/sedation score and Ramsay score of the Dex + ulinastatin group were significantly different from those of the Dex and ulinastatin groups on the first day after the operation (all P < 0.05). CONCLUSION Ulinastatin combined with Dex can prevent the occurrence of POCD and emergence agitation in elderly patients undergoing THA.
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Affiliation(s)
- Qi-Fan Huo
- Department of Anesthesiology, Shaanxi Provincial People’s Hospital, Xi’an 710068, Shaanxi Province, China
| | - Li-Juan Zhu
- Department of Anesthesiology, Shaanxi Provincial People’s Hospital, Xi’an 710068, Shaanxi Province, China
| | - Jian-Wei Guo
- Department of Anesthesiology, Shaanxi Provincial People’s Hospital, Xi’an 710068, Shaanxi Province, China
| | - Yan-An Jiang
- Department of Anesthesiology, Shaanxi Provincial People’s Hospital, Xi’an 710068, Shaanxi Province, China
| | - Jing Zhao
- Department of Anesthesiology, Shaanxi Provincial People’s Hospital, Xi’an 710068, Shaanxi Province, China
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Guo JW, Yu PX, Yang HD, Jayawardena RS, He GY, Xu Q, Zhang SY, Gui H. Molecular and Morphological Identification of Monilia yunnanensis Causing Brown Rot on Chinese Quince and Peach in Yunnan, China. Plant Dis 2023. [PMID: 37555726 DOI: 10.1094/pdis-02-23-0293-pdn] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/10/2023]
Abstract
More than 30% of fruits of Chinese Quince (Chaenomeles speciosa) and peach (Prunus persica) showed circular, water-soaked and brown spots in July 2022 in Kunming, Yunnan, China. The center of these spots was covered by a large number of earthy brown and oblate sporogeneous mycelium containing conidiophore and conidia, which were one-celled, limoniform, hyaline (13.73 to 22.77 x 8.17 to 12.84 µm, n=50). By September 2022, almost 100% of fruits showed symptoms. Later, most of them fell or a few stiff, black and mummified fruits were left on the trees. Fungal isolates were isolated by single-spore technique on Potato Dextrose agar (PDA) from the diseased fruits, and incubated at room temperature (20-28 °C) in darkness for 14 days. The colony was gray, smooth at margins, 7.6-8.0 cm in diameter. To fullfill Koch's postulates, mycelial plugs of one representative isolate YHD611 from Chinese Quince and another YHD610 from peach were used to inoculate three wounded and three non-wounded surface-disinfected fruits of both hosts at room temperature (19-27 °C), respectively. Three wounded and three non-wounded fruits inoculated with sterile PDA plugs served as the control. The wounded peaches appeared water-soaked and had brown lesions after three days of inoculation, then completely decayed after nine days, while non-wounded fruits showed symptoms after five days. The wounded fruits of Chinese Quince developed similar symptoms after eight days of inoculation, and completely decayed after 13 days, while non-wounded fruits showed obvious symptoms after 15 days. In a subsequent study, isolate YHD611 was inoculated to peach while isolate YHD610 was inoculated to Chinese Quince to understand host specificity of the isolates. The results showed that when peaches were infected with YHD611, symptoms were observed on wounded fruits after three days while on non-wounded fruits after five days. When Chinese Quince was infected with YHD610, symptoms were observed on wounded fruits after 14 days while on non-wounded fruits after 21 days. Fungal isolates from symptomatic fruits were identical to the original isolates. There were no symptoms on the control fruits of both hosts. Molecular identification was confirmed based on the sequences of internal transcribed spacer (ITS, primers ITS1 and ITS4) and β-tubulin (TUB2, primers Bt2a and Bt2b) genes (Niu et al. 2016). BLASTn analysis of the ITS (OQ15519and OQ155196) and TUB2 (OQ185202 and OQ185201) of YHD611 and YHD610 revealed a 100% sequence identity, respectively, to Monilia yunnanensis AH7-2 (KT735924.1 for ITS, KT736008.1 for TUB2). In the phylogenetic analyses based on ITS and TUB2 sequence data, the isolates YHD611 and YHD610 belonged to the M. yunnanensis clade. Based on morphological and molecular identification, both isolates were identified as M. yunnanensis, which was reported as the pathogen causing brown rot of plum, peach, apple and pear in Yunnan, China (Hu et al. 2011; Yin et al. 2015). To our knowledge, this is the first report of M. yunnanensis causing brown rot on the fruits of Chinese Quince in Yunnan, China. This study also reports that M. yunnanensis from Chinese Quince can infect peach, and the pathogen from peach can infect Chinese Quince. These findings suggest that M. yunnanensis can transfer from one host to another and causing serious economic losses in multiple fruit crops in Yunnan, China. References: Hu, M. J., et al. 2011. PLoS One. 6:e24990. Niu, C. W., et al. 2016. Mycosystema, 35(10):1. Yin, L. F., et al. 2015. Plant Dis. 99:1775.
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Affiliation(s)
- Jian-Wei Guo
- Kunming Institute of Botany Chinese Academy of Sciences, 26445, CAS Key Laboratory for Plant Diversity and Biogeography of East Asia, 132# Lanhei Road, Heilongtan, Kunming 650201, Yunnan, Chin, Kunming, China, 650201
- Kunming University, 162634, Yunnan Research Center of Urban Agricultural Engineering and Technology, College of Agronomy, Kunming, China, 650214;
| | - Pei-Xuan Yu
- Mae Fah Luang University, 68004, Center of Excellence in Fungal Research, Chiang Rai, Thailand
- Kunming University, 162634, Yunnan Research Center of Urban Agricultural Engineering and Technology, College of Agronomy, Kunming, Yunnan, China;
| | - Hong-De Yang
- Mae Fah Luang University, 68004, Center of Excellence in Fungal Research, Chiang Rai, Thailand;
| | | | - Guo-You He
- Yunnan Academy of Agricultural Sciences, 74741, Institute of Agricultural Environment and Resources, Kunming, Yunnan, China;
| | - Qiang Xu
- Kunming Institute of Botany Chinese Academy of Sciences, 26445, Kunming, Yunnan, China;
| | - Shi-Yu Zhang
- Mae Fah Luang University, 68004, Center of Excellence in Fungal Research, Chiang Rai, Thailand;
| | - Heng Gui
- Kunming Institute of Botany Chinese Academy of Sciences, 26445, Kunming, Yunnan, China;
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Li T, Tang ZY, Zhang QB, Xiao FN, Jian GL, Xie Y, Guo JW, Qing YF. Clinical Characteristics and Risk Factors of Polymyositis and Dermatomyositis Combined with Interstitial Lung Disease in Patients Residing in the Northeast Sichuan Province of China. Curr Rheumatol Rev 2023; 19:455-462. [PMID: 37005523 DOI: 10.2174/1573397119666230330082452] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2022] [Revised: 12/17/2022] [Accepted: 01/25/2023] [Indexed: 04/04/2023]
Abstract
BACKGROUND Polymyositis (PM) and dermatomyositis (DM) are non-suppurative and autoimmune inflammatory diseases of striated muscle. Interstitial lung disease (ILD) is a group of heterogeneous diseases that mainly involve the pulmonary interstitium, alveoli, and/or bronchioles, also known as diffuse parenchymal lung disease (DPLD). A significant cause of death in persons with polymyositis (PM) and dermatomyositis (DM) is concurrent interstitial lung disease (ILD). However, research on the clinical characteristics and associated influencing factors of PM/DM combined with ILD (PM/DM-ILD) is currently scarce in China. OBJECTIVE The study aimed to probe the clinical features and risk factors of PM/DM-ILD. METHODS The data of 130 patients with PM/DM were gathered. General medical status, clinical symptoms, laboratory parameters, high-resolution CT, therapeutic outcomes, and prognoses were retrospectively reviewed in patients with PM/DM with (ILD group) and without (NILD) ILD. RESULTS The age of the ILD group (n=65) was more than the NILD group (n=65), and the difference was statistically significant; there were no significant between-group variations in the PM/DM ratio, sex, or duration of the disease. The initial symptoms were arthritis and respiratory symptoms in the ILD group, and myasthenia symptoms in the NILD group. Incidences of Raynaud's phenomenon, dry cough, expectoration, dyspnea on exertion, arthritis, fever, total globulin (GLOB), erythrocyte sedimentation rate (ESR), and anti-Jo-1 antibody rate were higher for ILD; however, albumin (ALB), creatine kinase aspartate aminotransferase activity ratio (CK/AST) and CK levels were significantly lower in the ILD group. Bivariate logistic regression analysis showed age, dry cough, arthritis, dyspnea on exertion, anti-Jo-1 antibody, and elevated GLOB to be independent risk factors for ILD among patients with PM/DM. CONCLUSION Advanced age, dry cough, arthritis, dyspnea on exertion, anti-Jo-1 antibody positivity, and elevated GLOB level are risk factors for PM/DM-ILD. This information could be utilized to carefully monitor changing lung function in these patients.
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Affiliation(s)
- Tao Li
- Department of Geriatrics, Affiliated Hospital of North Sichuan Medical College, Nanchong, 637000, China
| | - Zi-Yi Tang
- Department of Rheumatology and Immunology, Affiliated Hospital of North Sichuan Medical College, Nanchong, 637000, China
| | - Quan-Bo Zhang
- Department of Geriatrics, Affiliated Hospital of North Sichuan Medical College, Nanchong, 637000, China
| | - Fan-Ni Xiao
- Department of Geriatrics, Affiliated Hospital of North Sichuan Medical College, Nanchong, 637000, China
| | - Gui-Lin Jian
- Department of Geriatrics, Affiliated Hospital of North Sichuan Medical College, Nanchong, 637000, China
| | - Yan Xie
- Department of Geriatrics, Affiliated Hospital of North Sichuan Medical College, Nanchong, 637000, China
| | - Jian-Wei Guo
- Department of Geriatrics, Affiliated Hospital of North Sichuan Medical College, Nanchong, 637000, China
| | - Yu-Feng Qing
- Department of Rheumatology and Immunology, Affiliated Hospital of North Sichuan Medical College, Nanchong, 637000, China
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Seow CS, Chan DKH, Bohari A, Guo JW, Sy LL. Predictors of Clinical Outcomes in Acute Appendicitis: A Retrospective Study. Med J Malaysia 2022; 77:331-337. [PMID: 35638490] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
INTRODUCTION Acute appendicitis is one of the most common causes of intra-abdominal emergency surgery worldwide. This study was conducted to contribute to global databases by presenting data from our institution, which consist of multi-racial population. We aimed to evaluate the presentation, diagnosis, and management of acute appendicitis and post-operative outcome in our institution and evaluate the risks factors associated with severe complications and prolonged length of stay (LOS). MATERIALS AND METHODS We performed a retrospective analysis using multivariate regression analysis of all patients who underwent appendectomy (2009-2014) in our institution. The primary outcomes included demographics, presentation, and perioperative management, and the secondary outcomes included risk factors associated with prolonged LOS. RESULTS Of the 1185 patients, the mean age was 36.4 years, and 940 (79.3%) were male. Majority (98.1%) of patients were ASA (American Society of Anaesthesiologists) 1 or 2. Most of them (83.9%) were from the four racial subgroups (Chinese, Malay, Bangladeshi, and Indian). There was no racial variation in the diagnosis and presentation of disease. The mean duration of symptoms was 1.8 days. The history was commonly a localised or migratory abdominal pain associated with anorexia, nausea, vomiting, and fever. The commonest physical findings were right-sided abdominal tenderness associated with rebound and guarding. About 42.9% of the patients underwent pre-operative CT scan to establish the diagnosis of appendicitis prior to surgery, whilst 57.1% underwent surgery on clinical diagnosis and blood investigation (NWR and CRP). An open appendectomy was performed in 13.2% of the patients. The conversion rate of laparoscopic appendectomy was 4.9% (n = 50). The mean length of hospital stay was 3.6 days. On multivariate Cox regression, patients of Burmese and Thai descent were independently associated with a prolonged LOS. The postoperative morbidity was 5.5%. The 30-day readmission rate was 2.4%. There was no mortality in our study. DISCUSSION Our study showed that pre-operative diagnosis of acute appendicitis can be made accurately by classical clinical presentation or by imaging. Independent risk factors associated with increased LOS included increased age, male gender, prolonged duration of symptoms pre-admission, fever, generalised tenderness, and prolonged operative time. The effect of race on LOS has been observed in the literature for other surgical procedures. The prolonged LOS found in Burmese and Thai patients contribute to the possibility of intrinsic racial differences in the post-surgery recovery. However, the numbers are small and therefore prone to type I error. Compared to the open approach, the use of laparoscopic appendectomy was associated with shorter LOS. This has similar outcomes to those reported in the literature. CONCLUSION The identification of risks factors could help surgical team to predict the clinical outcomes and develop risk reduction strategy in post-operative care of these patients.
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Affiliation(s)
- C S Seow
- Ng Teng Fong General Hospital, Department of Surgery, Jurong Health Campus, National University Health System, Singapore.
| | - D K H Chan
- Ng Teng Fong General Hospital, Department of Surgery, Jurong Health Campus, National University Health System, Singapore
| | - A Bohari
- Jurong Community Hospital, Jurong Health Campus, National University Health System, Singapore
| | - J W Guo
- Jurong Community Hospital, Jurong Health Campus, National University Health System, Singapore
| | - L L Sy
- Ng Teng Fong General Hospital, Department of Surgery, Jurong Health Campus, National University Health System, Singapore
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Guo JW, Huang R, Xiao Y. [Facial identification in the diagnosis of obstructive sleep apnea]. Zhonghua Jie He He Hu Xi Za Zhi 2021; 44:496-499. [PMID: 34865372 DOI: 10.3760/cma.j.cn112147-20200628-00755] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
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Lu W, Qian C, Zhang WH, Ma HY, Ma JD, Feng YC, Li LB, Li LX, Guo JW, Huang W, Zhang XZ, Sun LT, Zhao HW. Production of metallic ion beams by electron cyclotron resonance ion sources equipped with inductive heating ovens at the Institute of Modern Physics. Rev Sci Instrum 2021; 92:033302. [PMID: 33820031 DOI: 10.1063/5.0041671] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/24/2020] [Accepted: 02/17/2021] [Indexed: 06/12/2023]
Abstract
A high-temperature oven based on the inductive heating technology was developed successfully at the Institute of Modern Physics in 2019. This oven features a durable operation temperature of over 2000 °C inside the tantalum susceptor. By carefully designing the oven structure, the material compatibility issue at high temperature has been successfully solved, which enables the production and routine operation of refractory metal ions with SECRAL-II (Superconducting Electron Cyclotron Resonance ion source with Advanced design in Lanzhou No. 2). To further apply this type of oven to the room temperature ECR ion sources LECR4 and LECR5 (Lanzhou Electron Cyclotron Resonance ion source No. 4 and 5), a mini-inductive heating oven has been fabricated and tested in 2020. By directly evaporating calcium oxide, some high charge state calcium beams have been produced successfully, such as 52 euA of 40Ca16+, 30 euA of 40Ca17+, and 12 euA of 40Ca18+. The detailed design and testing results will be presented and discussed.
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Affiliation(s)
- W Lu
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 73000, China
| | - C Qian
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 73000, China
| | - W H Zhang
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 73000, China
| | - H Y Ma
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 73000, China
| | - J D Ma
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 73000, China
| | - Y C Feng
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 73000, China
| | - L B Li
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 73000, China
| | - L X Li
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 73000, China
| | - J W Guo
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 73000, China
| | - W Huang
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 73000, China
| | - X Z Zhang
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 73000, China
| | - L T Sun
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 73000, China
| | - H W Zhao
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 73000, China
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Guo JW, Wang CF, Lai JY, Lu CH, Chen JK. Poly(N-isopropylacrylamide)-gelatin hydrogel membranes with thermo-tunable pores for water flux gating and protein separation. J Memb Sci 2021. [DOI: 10.1016/j.memsci.2020.118732] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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Doilom M, Guo JW, Phookamsak R, Mortimer PE, Karunarathna SC, Dong W, Liao CF, Yan K, Pem D, Suwannarach N, Promputtha I, Lumyong S, Xu JC. Screening of Phosphate-Solubilizing Fungi From Air and Soil in Yunnan, China: Four Novel Species in Aspergillus, Gongronella, Penicillium, and Talaromyces. Front Microbiol 2020; 11:585215. [PMID: 33123114 PMCID: PMC7574596 DOI: 10.3389/fmicb.2020.585215] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2020] [Accepted: 09/11/2020] [Indexed: 11/25/2022] Open
Abstract
Phosphate-solubilizing fungi (PSF) play an important role in increasing the bioavailability of phosphorus in soils for plants. Thirteen fungal strains, one collected from air and 12 from soil, were screened and described here in detail. These fungal strains were tested for their ability to solubilize tricalcium phosphate (TCP) on both solid and liquid Pikovskaya (PVK) media in vitro. The airborne fungal strain KUMCC 18-0196 (Aspergillus hydei sp. nov.) showed the most significant phosphate solubilizing activity on a solid PVK medium with the solubilization index (SI) (2.58 ± 0.04 cm) and the highest solubilized phosphates (1523.33 ± 47.87 μg/mL) on a liquid PVK medium. To the best of our knowledge, A. hydei sp. nov. is the first phosphate-solubilizing fungus reported from air. We also provide the identification especially for Aspergillus, Penicillium and Talaromyces, generally reported as PSF. It is important to not only screen for PSF but also identify species properly so that researchers have a clearer taxonomic picture for identifying potential taxa for future plant growth-promoting applications. Herein, A. hydei (section Nigri), Gongronella hydei, Penicillium soli (section Lanata-Divaricata) and Talaromyces yunnanensis (section Talaromyces) are fully described and introduced as new to science. These four new species are identified based on both morphological characteristics and multigene phylogenetic analyses, including the genealogical concordance phylogenetic species recognition method where necessary. Penicillium austrosinense is considered to be a synonym of P. guaibinense.
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Affiliation(s)
- Mingkwan Doilom
- CAS Key Laboratory for Plant Diversity and Biogeography of East Asia, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, China
- Honghe Innovation Center for Mountain Futures, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, China
- World Agroforestry Centre, East and Central Asia, Kunming, China
- Research Center of Microbial Diversity and Sustainable Utilization, Faculty of Science, Chiang Mai University, Chiang Mai, Thailand
- Department of Biology, Faculty of Science, Chiang Mai University, Chiang Mai, Thailand
- Institute of Plant Health, Zhongkai University of Agriculture and Engineering, Guangzhou, China
| | - Jian-Wei Guo
- CAS Key Laboratory for Plant Diversity and Biogeography of East Asia, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, China
- Honghe Innovation Center for Mountain Futures, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, China
- World Agroforestry Centre, East and Central Asia, Kunming, China
| | - Rungtiwa Phookamsak
- CAS Key Laboratory for Plant Diversity and Biogeography of East Asia, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, China
- Honghe Innovation Center for Mountain Futures, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, China
- World Agroforestry Centre, East and Central Asia, Kunming, China
- Research Center of Microbial Diversity and Sustainable Utilization, Faculty of Science, Chiang Mai University, Chiang Mai, Thailand
- Department of Biology, Faculty of Science, Chiang Mai University, Chiang Mai, Thailand
| | - Peter E. Mortimer
- CAS Key Laboratory for Plant Diversity and Biogeography of East Asia, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, China
- Honghe Innovation Center for Mountain Futures, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, China
| | - Samantha C. Karunarathna
- CAS Key Laboratory for Plant Diversity and Biogeography of East Asia, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, China
- Honghe Innovation Center for Mountain Futures, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, China
- World Agroforestry Centre, East and Central Asia, Kunming, China
| | - Wei Dong
- Institute of Plant Health, Zhongkai University of Agriculture and Engineering, Guangzhou, China
- Center of Excellence in Fungal Research, Mae Fah Luang University, Chiang Rai, Thailand
- Department of Entomology and Plant Pathology, Faculty of Agriculture, Chiang Mai University, Chiang Mai, Thailand
| | - Chun-Fang Liao
- CAS Key Laboratory for Plant Diversity and Biogeography of East Asia, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, China
- Honghe Innovation Center for Mountain Futures, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, China
- World Agroforestry Centre, East and Central Asia, Kunming, China
| | - Kai Yan
- College of Resources and Environment, Yunnan Agricultural University, Kunming, China
| | - Dhandevi Pem
- Center of Excellence in Fungal Research, Mae Fah Luang University, Chiang Rai, Thailand
| | - Nakarin Suwannarach
- Research Center of Microbial Diversity and Sustainable Utilization, Faculty of Science, Chiang Mai University, Chiang Mai, Thailand
- Department of Biology, Faculty of Science, Chiang Mai University, Chiang Mai, Thailand
| | - Itthayakorn Promputtha
- Department of Biology, Faculty of Science, Chiang Mai University, Chiang Mai, Thailand
- Center of Excellence in Bioresources for Agriculture, Industry and Medicine, Department of Biology, Faculty of Science, Chiang Mai University, Chiang Mai, Thailand
| | - Saisamorn Lumyong
- Research Center of Microbial Diversity and Sustainable Utilization, Faculty of Science, Chiang Mai University, Chiang Mai, Thailand
- Department of Biology, Faculty of Science, Chiang Mai University, Chiang Mai, Thailand
- Academy of Science, The Royal Society of Thailand, Bangkok, Thailand
| | - Jian-Chu Xu
- CAS Key Laboratory for Plant Diversity and Biogeography of East Asia, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, China
- Honghe Innovation Center for Mountain Futures, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, China
- World Agroforestry Centre, East and Central Asia, Kunming, China
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12
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Li JB, Li LX, Li LB, Guo JW, Hitz D, Lu W, Feng YC, Zhang WH, Zhang XZ, Zhao HY, Sun LT, Zhao HW. Influence of electron cyclotron resonance ion source parameters on high energy electrons. Rev Sci Instrum 2020; 91:083302. [PMID: 32872961 DOI: 10.1063/5.0011403] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/21/2020] [Accepted: 07/25/2020] [Indexed: 06/11/2023]
Abstract
In order to diagnose the electron cyclotron resonance (ECR) plasma, a high-efficiency collimation system has been developed at the Institute of Modern Physics, and the bremsstrahlung spectra in the range of 10 keV-300 keV were measured on a third generation superconducting ECR ion source, SECRAL-II, with a CdTe detector. Used as a comparative index of the mean energy of the high energy electron population, the spectral temperature, Ts, is derived through a linear fitting of the spectra in a semi-logarithmic representation. The influences of some main source parameters, such as the neutral gas pressure, extraction voltage, microwave power, and bias disk voltage, on the high energy electrons are systemically investigated.
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Affiliation(s)
- J B Li
- Institute of Modern Physics (IMP), Chinese Academy of Sciences, Lanzhou 730000, China
| | - L X Li
- Institute of Modern Physics (IMP), Chinese Academy of Sciences, Lanzhou 730000, China
| | - L B Li
- Institute of Modern Physics (IMP), Chinese Academy of Sciences, Lanzhou 730000, China
| | - J W Guo
- Institute of Modern Physics (IMP), Chinese Academy of Sciences, Lanzhou 730000, China
| | - D Hitz
- Institute of Modern Physics (IMP), Chinese Academy of Sciences, Lanzhou 730000, China
| | - W Lu
- Institute of Modern Physics (IMP), Chinese Academy of Sciences, Lanzhou 730000, China
| | - Y C Feng
- Institute of Modern Physics (IMP), Chinese Academy of Sciences, Lanzhou 730000, China
| | - W H Zhang
- Institute of Modern Physics (IMP), Chinese Academy of Sciences, Lanzhou 730000, China
| | - X Z Zhang
- Institute of Modern Physics (IMP), Chinese Academy of Sciences, Lanzhou 730000, China
| | - H Y Zhao
- Institute of Modern Physics (IMP), Chinese Academy of Sciences, Lanzhou 730000, China
| | - L T Sun
- Institute of Modern Physics (IMP), Chinese Academy of Sciences, Lanzhou 730000, China
| | - H W Zhao
- Institute of Modern Physics (IMP), Chinese Academy of Sciences, Lanzhou 730000, China
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13
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Liu XY, Guo JW, Kou JQ, Sun YL, Zheng XJ. Repair mechanism of astrocytes and non-astrocytes in spinal cord injury. World J Clin Cases 2020; 8:854-863. [PMID: 32190622 PMCID: PMC7062612 DOI: 10.12998/wjcc.v8.i5.854] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/26/2019] [Revised: 12/30/2019] [Accepted: 02/09/2020] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Spinal cord injury (SCI) is a destructive disease that incurs huge personal and social costs, and there is no effective treatment. Although the pathogenesis and treatment mechanism of SCI has always been a strong scientific focus, the pathogenesis of SCI is still under investigation.
AIM To determine the key genes based on the modularization of in-depth analysis, in order to identify the repair mechanism of astrocytes and non-astrocytes in SCI.
METHODS Firstly, the differences between injured and non-injured spinal cord of astrocyte (HA), injured and non-injured spinal cord of non-astrocyte (FLOW), injured spinal cord of non-injured astrocyte (HA) and non-injured spinal cord of non-astrocyte (FLOW), and non-injured spinal cord of astrocyte (HA) and non-astrocyte (FLOW) were analyzed. The total number of differentially expressed genes was obtained by merging the four groups of differential results. Secondly, the genes were co-expressed and clustered. Then, the enrichment of GO function and KEGG pathway of module genes was analyzed. Finally, non-coding RNA, transcription factors and drugs that regulate module genes were predicted using hypergeometric tests.
RESULTS In summary, we obtained 19 expression modules involving 5216 differentially expressed genes. Among them, miR-494, XIST and other genes were differentially expressed in SCI patients, and played an active regulatory role in dysfunction module, and these genes were recognized as the driving genes of SCI. Enrichment results showed that module genes were significantly involved in the biological processes of inflammation, oxidation and apoptosis. Signal pathways such as NF-kappa B/A20, AMPK and MAPK were significantly regulated. In addition, non-coding RNA pivot (including miR-136-5p and let-7d-5p, etc.) and transcription factor pivot (including NFKB1, MYC, etc.) were identified as significant regulatory dysfunction modules.
CONCLUSION Overall, this study uncovered a co-expression network of key genes involved in astrocyte and non-astrocyte regulation in SCI. These findings helped to reveal the core dysfunction modules, potential regulatory factors and driving genes of the disease, and to improve our understanding of its pathogenesis.
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Affiliation(s)
- Xiang-Yun Liu
- Department of Spinal Surgery, The Affiliated Hospital of Qingdao University, Qingdao 266003, Shandong Province, China
| | - Jian-Wei Guo
- Department of Spinal Surgery, The Affiliated Hospital of Qingdao University, Qingdao 266003, Shandong Province, China
| | - Jian-Qiang Kou
- Department of Spinal Surgery, The Affiliated Hospital of Qingdao University, Qingdao 266003, Shandong Province, China
| | - Yuan-Liang Sun
- Department of Spinal Surgery, The Affiliated Hospital of Qingdao University, Qingdao 266003, Shandong Province, China
| | - Xiu-Jun Zheng
- Department of Spinal Surgery, The Affiliated Hospital of Qingdao University, Qingdao 266003, Shandong Province, China
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14
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Sun L, Zhao HW, Zhao HY, Lu W, Guo JW, Cao Y, Wu Q, Qian C, Yang Y, Fang X, Zhang ZM, Zhang XZ, Guo XH, Liu ZW. Overview of high intensity ion source development in the past 20 years at IMP. Rev Sci Instrum 2020; 91:023310. [PMID: 32113417 DOI: 10.1063/1.5129399] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/27/2019] [Accepted: 01/20/2020] [Indexed: 06/10/2023]
Abstract
Ion source development over the last 20 years at the IMP is reviewed. For versatile purposes, several types of ion sources have been involved in the research and development work at the IMP, i.e., the highly charged ECR (Electron Cyclotron Resonance) ion source, intense microwave ion source or the 2.45 GHz intense beam ECR ion source, and laser ion source (LIS). In the development of ECR ion sources, SECRAL (Superconducting ECR ion source with Advanced design in Lanzhou), Lanzhou ECR ion source, and Lanzhou all permanent magnet ECR ion source series have been made, which can cover the operation microwave frequency range of 10-28 GHz. The LIS with an Nd:YAG laser with a maximum output energy of 8 J in 8 ns pulse duration has been developed for very intense short pulse ion beams from solid materials such as C, Ti, Ni, Ag, and so on. Microwave ion sources have been built to produce intense pulsed or direct current beams from several mA to 100 mA for either high intensity accelerators or applications. This paper will give an overview of the high intensity ion source development at the IMP, especially on the recent progress and new results, such as the status of the fourth generation ECR ion source (first fourth generation ECR ion source), the production of recorded highly charged ion beams with SECRAL sources, key technology research studies, and so on.
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Affiliation(s)
- L Sun
- Institute of Modern Physics (IMP), Chinese Academy of Sciences (CAS), Lanzhou 730000, China
| | - H W Zhao
- Institute of Modern Physics (IMP), Chinese Academy of Sciences (CAS), Lanzhou 730000, China
| | - H Y Zhao
- Institute of Modern Physics (IMP), Chinese Academy of Sciences (CAS), Lanzhou 730000, China
| | - W Lu
- Institute of Modern Physics (IMP), Chinese Academy of Sciences (CAS), Lanzhou 730000, China
| | - J W Guo
- Institute of Modern Physics (IMP), Chinese Academy of Sciences (CAS), Lanzhou 730000, China
| | - Y Cao
- Institute of Modern Physics (IMP), Chinese Academy of Sciences (CAS), Lanzhou 730000, China
| | - Q Wu
- Institute of Modern Physics (IMP), Chinese Academy of Sciences (CAS), Lanzhou 730000, China
| | - C Qian
- Institute of Modern Physics (IMP), Chinese Academy of Sciences (CAS), Lanzhou 730000, China
| | - Y Yang
- Institute of Modern Physics (IMP), Chinese Academy of Sciences (CAS), Lanzhou 730000, China
| | - X Fang
- Institute of Modern Physics (IMP), Chinese Academy of Sciences (CAS), Lanzhou 730000, China
| | - Z M Zhang
- Institute of Modern Physics (IMP), Chinese Academy of Sciences (CAS), Lanzhou 730000, China
| | - X Z Zhang
- Institute of Modern Physics (IMP), Chinese Academy of Sciences (CAS), Lanzhou 730000, China
| | - X H Guo
- Institute of Modern Physics (IMP), Chinese Academy of Sciences (CAS), Lanzhou 730000, China
| | - Z W Liu
- Institute of Modern Physics (IMP), Chinese Academy of Sciences (CAS), Lanzhou 730000, China
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15
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Qian C, Sun LT, Jia ZH, Li LB, Ma YM, Fang X, Guo JW, Wang H, Lu W, Zhang XZ, Zhao HW. A new room temperature LECR5 ion source for the SESRI project. Rev Sci Instrum 2020; 91:023313. [PMID: 32113446 DOI: 10.1063/1.5128514] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/19/2019] [Accepted: 01/23/2020] [Indexed: 06/10/2023]
Abstract
The Space Environment Simulation and Research Infrastructure project, which uses various ion beams as irradiated materials in life science research, is being built at the Harbin Institute of Technology. A new room temperature electron cyclotron resonance ion source, the Lanzhou Electron Cyclotron Resonance Ion Source No. 5 (LECR5), has been designed and constructed. It is an intense, highly charged, heavy ion beam injector which generates ion beams from H to Bi, typically ∼50 eμA 209Bi32+. The LECR5 is designed to operate at microwave frequencies in the range of 14.5-18 GHz. The typical magnetic parameters are designed based on those optimized for SECRAL, which operates at 18 GHz. This paper presents the LECR5 ion source, its test bench, and the preliminary beam results.
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Affiliation(s)
- C Qian
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - L T Sun
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - Z H Jia
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - L B Li
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - Y M Ma
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - X Fang
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - J W Guo
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - H Wang
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - W Lu
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - X Z Zhang
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - H W Zhao
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
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16
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Guo JW, Sun L, Lu W, Zhang WH, Feng YC, Shen Z, Li LX, Li JB, Zhang XZ, Hitz D, Zhao HW. A new microwave coupling scheme for high intensity highly charged ion beam production by high power 24-28 GHz SECRAL ion source. Rev Sci Instrum 2020; 91:013322. [PMID: 32012624 DOI: 10.1063/1.5131101] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/09/2019] [Accepted: 12/31/2019] [Indexed: 06/10/2023]
Abstract
The efficiency of the microwave-plasma coupling is a key issue to enhance the performance of electron cyclotron resonance ion sources (ECRISs) in terms of higher ion beam intensity yield. The coupling properties are affected by the microwave coupling scheme, especially for the high frequency (f > 20 GHz) and high power (P > 5 kW) ECR ion sources. Based on the study of 24 GHz SECRAL ion source performances working at different launching systems, a new microwave coupling scheme, called the Vlasov launcher, is proposed, which can not only realize efficient power matching and feeding but also enhance the microwave power distribution on the ECR surface. The first promising results are presented in this article. Then, a prototype dedicated to the next generation ECRIS is described.
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Affiliation(s)
- J W Guo
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - L Sun
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - W Lu
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - W H Zhang
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - Y C Feng
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - Z Shen
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - L X Li
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - J B Li
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - X Z Zhang
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - D Hitz
- Visiting Scientist at Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - H W Zhao
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
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17
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Li JQ, Cao Y, Sun LT, Zhang XZ, Guo JW, Fang X, Wang H, Zhao HW. Intense carbon beams production with an all permanent magnet electron cyclotron resonance ion source for heavy ion medical machine. Rev Sci Instrum 2020; 91:013307. [PMID: 32012517 DOI: 10.1063/1.5128488] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/19/2019] [Accepted: 12/20/2019] [Indexed: 06/10/2023]
Abstract
LAPECR3 (Lanzhou All Permanent magnet Electron cyclotron Resonance ion source No. 3) had been developed as an ion injector of Heavy Ion Medical Machine (HIMM) accelerator facility since 2009. The first HIMM accelerator facility was built in Wuwei city in 2015, and the LAPCER3 ion source has delivered C5+ ion beam to HIMM for more than 1000 days in the past four years. In order to improve the performance of the LAPECR3 ion source for intense carbon beams production, continuous research and development work has been made. The recently developed LAPECR3 ion source together with the new low-energy beam transportation can provide better performance in terms of both beam intensity and quality. This paper will generally review the LAPECR3 ion source operation status for HIMM, and the recent improvement will be presented, especially the stable beams production of C4+ and C5+.
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Affiliation(s)
- J Q Li
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - Y Cao
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - L T Sun
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - X Z Zhang
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - J W Guo
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - X Fang
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - H Wang
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - H W Zhao
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
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18
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Lu W, Sun LT, Qian C, Li LB, Guo JW, Huang W, Zhang XZ, Zhao HW. Production of intense uranium beams with inductive heating oven at Institute of Modern Physics. Rev Sci Instrum 2019; 90:113318. [PMID: 31779405 DOI: 10.1063/1.5128419] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/19/2019] [Accepted: 10/26/2019] [Indexed: 06/10/2023]
Abstract
HIAF (High Intensity heavy ion Accelerator Facility) is a new accelerator complex under construction at the Institute of Modern Physics. As the main injector of this project, the high-charge-state ECR ion source needs to provide intense uranium beams, such as 700 eμA of U35+. This requires the performance of metal ovens to be further improved so that the crucible can operate at an ultrahigh temperature for a long time without damage in a high magnetic field (>3 T). In order to meet these requirements, an inductive oven with special thermal shielding and support has been developed in the past two years. The off-line test result has shown that this oven can reach up to 2000 °C with ∼1.2 kW of heating power. After ∼5 days of continuous running on the SECRAL-II platform, the tantalum crucible survived. In this contribution, we will discuss the structure of this inductive oven and analyze the test results as well.
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Affiliation(s)
- W Lu
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 73000, China
| | - L T Sun
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 73000, China
| | - C Qian
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 73000, China
| | - L B Li
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 73000, China
| | - J W Guo
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 73000, China
| | - W Huang
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - X Z Zhang
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 73000, China
| | - H W Zhao
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 73000, China
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19
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Zheng XJ, Liu XZ, Kou JQ, Sun YL, Liu XY, Guo JW, Wang T. [Resection of lumbar nerve sheath tumors via muscle-pedicle open-door laminoplasty approach]. Zhonghua Yi Xue Za Zhi 2019; 99:3000-3004. [PMID: 31607032 DOI: 10.3760/cma.j.issn.0376-2491.2019.38.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To evaluate the efficacy and safety of resection of lumbar nerve sheath tumors via muscle-pedicle open-door laminoplasty approach. Methods: From March 2016 to June 2018, 6 patients (4 males and 2 females, average age (45±14) years) with lumbar spinal nerve sheath tumors received surgical treatment via muscle-pedicleopen-door laminoplasty approach in the Department of Spinal Surgery, the Affiliated Hospital of Qingdao University. The operation time, blood loss, cerebral spinal fluid (CSF) leakage, and pre- and post-operative Oswestry Disability Index (ODI) and low back and leg pain visual analogue scale (VAS) were recorded for all patients. Cobb angle of lumbar lordosis was measured on the standing lateral X-ray before and 6 months after surgery. Bone fusion was observed in computed tomography at six months after surgery. Results: Total tumor resection was achieved in all the 6 patients. The operation time was from 76 to 117 minutes (average, (102±15) minutes). The blood loss was from 160 to 280 ml (average, (256±24) ml). No CSF leakage was observed in this cohort.All patients were followed up for more than 6 months. ODI and VAS for low back and leg pain were much better at one month after operation than those before the operation(t=7.70, 8.63,11.31, all P<0.05). The Cobb angle of lumbar lordosis before operation and at six months after the operation were comparable in all six patients(t=0.70, P>0.05). Bone fusion was observed in computed tomography at six months after surgery. No bone necrosis or absorption, no lamina dislodgement or spinal stenosis was occurred. Conclusions: The muscle-pedicle open-door laminoplasty approach is proved effective and safe to incise nerve sheath tumors in the lumbar spine. Some blood supply of lamina can be kept intact to accelerate bone fusion.
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Affiliation(s)
- X J Zheng
- Department of Spinal Surgery, the Affiliated Hospital of Qingdao University, Qingdao 266330, China
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20
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Meng M, Li XC, Guo JW, Zhou M, Niu LN, Tay FR, He L, Zhang SF. Improving the wear performance of feldspathic veneering porcelain by ion-exchange strengthening. J Dent 2019; 90:103210. [PMID: 31600535 DOI: 10.1016/j.jdent.2019.103210] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2019] [Revised: 09/28/2019] [Accepted: 10/04/2019] [Indexed: 02/04/2023] Open
Abstract
OBJECTIVES The present study examined the effects of Na+→K+ ion-exchange on the wear performance of feldspathic veneering porcelain. METHODS Bar and disk specimens were prepared using IPS classic as the feldspathic veneering porcelain. After ion-exchange by immersion of the specimens in melted KNO3 at two temperatures for different time-periods, the bars were tested for flexural strength and Vickers surface hardness. The disks were paired with zirconia antagonists and tested with a pin-on-disk tribometer with 10 N for 70☓104 wear cycles in artificial saliva. Wear analysis of the porcelain and zirconia was performed using 3D profilometer and analysed with one-way analysis of variance and Tukey's post-hoc pairwise comparison procedures. Worn surfaces were examined with scanning electron microscopy. RESULTS The feldspathic veneering porcelain exhibited strong time-dependent wear behaviour, with typical running-in and steady wear stages. Ion-exchange treatments at 380 °C and 440 °C both enhanced the mechanical properties, decreased the wear rates of running-in wear and steady wear. The wear performance of porcelain treated by ion-exchange at lower temperature (380 °C) was improved significantly, especially reducing the wear rate of the running-in stage. CONCLUSION A thicker ion-exchange layer with less stress relaxation may be obtained by ion-exchange at lower exchange temperature for a long processing time. Such a protocol improves the wear performance of the porcelain effectively. CLINICAL SIGNIFICANCE Restorations with veneering porcelain may fail prematurely due to excessive wear. It important to improve the wear performance of the porcelain. Ion-exchange has the potential to strengthen dental veneering porcelain. Understanding the effect of ion-exchange on the wear performance of porcelain provides insight improving the wear performance of these restorations.
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Affiliation(s)
- M Meng
- State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi Key Laboratory of Stomatology, Department of Prosthodontics, School of Stomatology, Fourth Military Medical University, Xi'an, 710032, China
| | - X C Li
- State Key Laboratory for Mechanical Behavior of Materials, Xi'an Jiaotong University, Xi'an, 710049, China
| | - J W Guo
- Department of Prosthodontics, Guanghua School of Stomatology & Hospital of Stomatology, Guangdong Key Laboratory of Stomatology, Sun Yat-Sen University, Guangzhou, 510055, China
| | - M Zhou
- State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi Key Laboratory of Stomatology, Department of Prosthodontics, School of Stomatology, Fourth Military Medical University, Xi'an, 710032, China
| | - L N Niu
- State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi Key Laboratory of Stomatology, Department of Prosthodontics, School of Stomatology, Fourth Military Medical University, Xi'an, 710032, China
| | - F R Tay
- State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi Key Laboratory of Stomatology, Department of Prosthodontics, School of Stomatology, Fourth Military Medical University, Xi'an, 710032, China; The Dental College of Georgia, Augusta University, Augusta, GA, USA.
| | - L He
- State Key Laboratory for Mechanical Behavior of Materials, Xi'an Jiaotong University, Xi'an, 710049, China.
| | - S F Zhang
- State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi Key Laboratory of Stomatology, Department of Prosthodontics, School of Stomatology, Fourth Military Medical University, Xi'an, 710032, China.
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Zheng YJ, Li X, Sun L, Guo JW. [Therapeutic effect of dihydroartemisinin on pulmonary fibrosis in rats with dust]. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2019; 37:96-103. [PMID: 30929348 DOI: 10.3760/cma.j.issn.1001-9391.2019.02.003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To observe the therapeutic effect of dihydroartemisinin on pulmonary fibrosis in rats exposed to dust, and compare the therapeutic effects of dihydroartemisinin and tetrandrine. Methods: Sixty male Sprague-Dawley rats were randomly divided into control group, model group, treatment group 1 and treatment group 2, with 15 rats in each group. The model group and the treatment group were stained with disposable non-exposure silica tracheal instillation method. The drug was administered on the second day after the dust was applied. The treatment group was given with dihydroartemisinin 75 mg/kg, the treatment group was given tetrahexine 22 mg/kg, model group and control group were intragastrically administered with 1 ml of normal saline per 100 g of body mass. The drug was administered for 6 days per week for 28 days. Rats were sacrificed on the 7th, 14th and 28th day after dusting, and the lung tissues of rats were taken, detection of rat lung coefficient, ELISA was used to detect transforming growth factor-1(TGF-1)and Smad 2/3 in rat lung tissues, type I collagen (Col-I) expression level, pathological changes of rat lung tissue, immunohistochemical observation of rat lung tissue TGF-1 and Col-I protein expression. Statistial analysis was proformed with SPSS 19.0. The mean cornparis between graups wad perfomed using a completely randonized one-way (ANOVA). Results: The expressions of TGF-1, Smad 2/3 and Col-I in the lung tissue of the treatment group were significantly lower than those in the model group (P< 0.05), but the difference between the treatment group 1 and the treatment group 2 Not statistically significant (P>0.05). The results of immunohistochemistry showed that the TGF-1 and Col-I proteins in the interstitial of the model group showed strong positive expression. The expression of TGF-1 and Col-I protein in the lung interstitial of the treated group was weaker than that of the model group. Conclusion: Dihydroartemisinin can down-regulate the level of inflammatory cytokines in rat lung tissue. It is possible to inhibit pulmonary fibrosis by intervening in the TGF-β1/Smad 2/3 signaling pathway, but the therapeutic effect between DHA and tetrandrine is not significantly different in a short time.
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Affiliation(s)
- Y J Zheng
- School of Medicine and Life Science, Universicy of Jinan-Shandong Academy of Medicine Sciences, Jinan 250062, China; Shandong Academy of Medical Sciences Shandong Academy of Occupational Health and Occupational Medicine, Jinan 250062, China
| | - X Li
- Shandong Academy of Medical Sciences Shandong Academy of Occupational Health and Occupational Medicine, Jinan 250062, China
| | - L Sun
- School of Medicine and Life Science, Universicy of Jinan-Shandong Academy of Medicine Sciences, Jinan 250062, China; Shandong Academy of Medical Sciences Shandong Academy of Occupational Health and Occupational Medicine, Jinan 250062, China
| | - J W Guo
- School of Medicine and Life Science, Universicy of Jinan-Shandong Academy of Medicine Sciences, Jinan 250062, China; Shandong Academy of Medical Sciences Shandong Academy of Occupational Health and Occupational Medicine, Jinan 250062, China
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22
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Wang HC, Jin CH, Kong J, Yu T, Guo JW, Hu YG, Liu Y. The research of transgenic human nucleus pulposus cell transplantation in the treatment of lumbar disc degeneration. Kaohsiung J Med Sci 2019; 35:486-492. [PMID: 31091017 DOI: 10.1002/kjm2.12084] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2018] [Accepted: 04/21/2019] [Indexed: 01/13/2023] Open
Abstract
The present study determines whether the in vivo injection of TGFβ1 and CTGF mediated by AAV2 to transfect nucleus pulposus cells in degenerative lumbar discs can reverse the biological effects of rhesus lumbar disc degeneration. A total of 42 lumbar discs obtained from six rhesus monkeys were classified into three groups: experimental group, control group, and blank group. Degenerative lumbar discs were respectively injected with double gene-transfected human nucleus pulposus cells using minimally invasive techniques. Immumohistochemical staining, RT-PCR, and western blot were performed to observe the biological effects of double gene-transfected human nucleus pulposus cells in degenerative lumbar discs on rhesus lumbar disc degeneration. At 4, 8, and 12 weeks after the transplantation of nucleus pulposus cells, the expression levels of TGF-ß1, CTGF, proteoglycan mRNA, and type-II collagen were detected by RT-PCR. The values of immumohistochemical staining and RT-PCR in the experimental group increased at 8 weeks, decreased with time at 12 weeks, and remained greater than the values in the control group, and the differences were statistically significant (P < .05). The western blot revealed that the values in the experimental group decreased with time, but remained greater than those in the PBS control group and blank control group, and the differences were statistically significant (P < .05). The double gene-transfection of human nucleus pulposus cells in degenerative lumbar discs mediated by rAAV2 can be continuously expressed in vivo after transplantation in lumbar discs of rhesus monkeys, and promotes the synthesis of proteoglycan and type II collagen, achieving the treatment purpose.
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Affiliation(s)
- Hua-Cong Wang
- Department of Orthopedic Surgery, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, People's Republic of China
| | - Cang-Hai Jin
- Department of Minimally Invasive Spine Surgery, Qingdao Municipal Hospital, East Branch, Qingdao, Shandong, People's Republic of China
| | - Jie Kong
- Department of Orthopedic Surgery, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, People's Republic of China
| | - Tao Yu
- Department of Orthopedic Surgery, Rushan City People Hospital, Rushan, Shandong, P.R China
| | - Jian-Wei Guo
- Department of Orthopedic Surgery, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, People's Republic of China
| | - You-Gu Hu
- Department of Orthopedic Surgery, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, People's Republic of China
| | - Yong Liu
- Department of Orthopedic Surgery, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, People's Republic of China
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Li M, Guo JW, Wen WQ, Chen JK. Biodegradable Redox-Sensitive Star Polymer Nanomicelles for Enhancing Doxorubicin Delivery. Nanomaterials (Basel) 2019; 9:E547. [PMID: 30987287 PMCID: PMC6523129 DOI: 10.3390/nano9040547] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/19/2019] [Revised: 03/30/2019] [Accepted: 04/01/2019] [Indexed: 12/18/2022]
Abstract
A typical amphiphilic star polymer adamantane-[poly(lactic-co-glycolic acid)-bis(2-carboxyethyl) sulfide-poly(ethylene glycol) monomethyl ether)]₄ with a specific hydrophilic/redox-sensitive/hydrophobic structure was designed and synthesized through ring opening and esterification reactions. The self-assembled nanomicelles were used as doxorubicin (DOX) delivery vehicles with suitable critical micelle concentrations (5.0 mg/L). After the drug being loaded, drug-loaded micelles showed good drug-loading efficiency (10.39%), encapsulation efficiency (58.1%), and drug release (up to 60%) under simulated biological environment conditions. In addition, the backbone structure of the biodegradable polymer was easily hydrolyzed by the action of biological enzymes. As expected, cell-based studies showed that the designed polymer micelles possessed good biocompatibility (a survival rate of 85% for NH-3T3 cells). Moreover, the drug (DOX) still maintained good anti-cancer effects after being loaded, which caused 40% of MCF-7 cells to survive. These redox-sensitive micelles showed anti-tumor therapeutic potential.
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Affiliation(s)
- Meng Li
- School of Chemical Engineering & Light Industry, Guangdong University of Technology, Guangzhou 510006, China.
- Department of Materials Science and Engineering, National Taiwan University of Science and Technology, No. 43, Sec. 4, Keelung Road, Taipei 106, Taiwan.
| | - Jian-Wei Guo
- School of Chemical Engineering & Light Industry, Guangdong University of Technology, Guangzhou 510006, China.
| | - Wei-Qiu Wen
- School of Chemical Engineering & Light Industry, Guangdong University of Technology, Guangzhou 510006, China.
| | - Jem-Kun Chen
- Department of Materials Science and Engineering, National Taiwan University of Science and Technology, No. 43, Sec. 4, Keelung Road, Taipei 106, Taiwan.
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Cheng RY, Yao JR, Wan Q, Guo JW, Pu FF, Shi L, Hu W, Yang YH, Li L, Li M, He F. Oral administration of Bifidobacterium bifidum TMC3115 to neonatal mice may alleviate IgE-mediated allergic risk in adulthood. Benef Microbes 2018; 9:815-828. [PMID: 29888657 DOI: 10.3920/bm2018.0005] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
This study aimed to demonstrate whether exposure to bifidobacteria during early life influences immunity and alleviates the risk of immunoglobulin E (IgE)-mediated allergies in adulthood. BALB/c neonatal mice (n=54) were administered with a lyophilised cell preparation of Bifidobacterium bifidum TMC3115 (TMC3115) for 3 weeks. Following the intervention, the mice were immunised with intraperitoneal ovalbumin (OVA). The morphology and function of the intestinal epithelium were determined using histopathological examinations. Intestinal microbiota was detected using quantitative PCR and characterised using next-generation sequencing of 16S rRNA genes from faecal DNA. Caecal short-chain fatty acids (SCFAs) were measured using gas chromatography-mass spectrometry. Serum levels of tumour necrosis factor (TNF)-α, interleukin (IL)-6, IL-10, and immunoglobulin E (IgE) and the percentage of splenic CD4+ T cells were examined using enzyme-linked immunosorbent assay and flow cytometry, respectively. TMC3115 did not significantly affect body weight, and cause any severe systemic inflammation or other clinical symptoms among the neonatal or adult mice, although the crypt depths and Muc2-positive cells in some intestinal segments of neonatal mice were significantly lower than control. Oral TMC3115 administration significantly increased faecal microbial diversity, relative abundance of Bacteroidetes and caecal SCFAs production in neonatal mice. Following the intervention, neonatal mice treated with TMC3115 exhibited less increase in serum IgE levels induced by OVA in adults and significantly higher TNF-α and IL-10 levels than in control. Our findings indicate that the oral administration of bifidobacteria, particularly certain strains, such as TMC3115, during early life could alleviate the risk of IgE-mediated allergies in adult host animals. Modifications of intestinal microbiota, SCFAs metabolism and anti-inflammatory cytokine IL-10 production by bifidobacteria may at least in part be a key mechanism underlying the effect of bifidobacteria on the IgE-mediated immune sensitivity of hosts to attacks by allergens at both neonatal and adult stages.
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Affiliation(s)
- R Y Cheng
- 1 Department of Nutrition, Food Hygiene and Toxicology, West China School of Public Health, Sichuan University and Healthy Food Evaluation Research Center, Chengdu 610041, Sichuan, China P.R
| | - J R Yao
- 2 West China Second University Hospital/Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University), Ministry of Education, Sichuan University, Chengdu 610041, Sichuan, China P.R
| | - Q Wan
- 1 Department of Nutrition, Food Hygiene and Toxicology, West China School of Public Health, Sichuan University and Healthy Food Evaluation Research Center, Chengdu 610041, Sichuan, China P.R
| | - J W Guo
- 1 Department of Nutrition, Food Hygiene and Toxicology, West China School of Public Health, Sichuan University and Healthy Food Evaluation Research Center, Chengdu 610041, Sichuan, China P.R
| | - F F Pu
- 1 Department of Nutrition, Food Hygiene and Toxicology, West China School of Public Health, Sichuan University and Healthy Food Evaluation Research Center, Chengdu 610041, Sichuan, China P.R
| | - L Shi
- 3 Department of Clinical Nutrition, West China Hospital, Sichuan University, Chengdu 610041, Sichuan, China P.R
| | - W Hu
- 3 Department of Clinical Nutrition, West China Hospital, Sichuan University, Chengdu 610041, Sichuan, China P.R
| | - Y H Yang
- 4 Department of Planning, Hebei Inatural Biotech Co., Ltd. Shijiazhuang 050000, Hebei, China P.R
| | - L Li
- 5 Department of Research and Development, Hebei Inatural Biotech Co., Ltd. Shijiazhuang 050000, Hebei, China P.R
| | - M Li
- 1 Department of Nutrition, Food Hygiene and Toxicology, West China School of Public Health, Sichuan University and Healthy Food Evaluation Research Center, Chengdu 610041, Sichuan, China P.R
| | - F He
- 1 Department of Nutrition, Food Hygiene and Toxicology, West China School of Public Health, Sichuan University and Healthy Food Evaluation Research Center, Chengdu 610041, Sichuan, China P.R
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Mohamad OAA, Li L, Ma JB, Hatab S, Xu L, Guo JW, Rasulov BA, Liu YH, Hedlund BP, Li WJ. Evaluation of the Antimicrobial Activity of Endophytic Bacterial Populations From Chinese Traditional Medicinal Plant Licorice and Characterization of the Bioactive Secondary Metabolites Produced by Bacillus atrophaeus Against Verticillium dahliae. Front Microbiol 2018; 9:924. [PMID: 29867835 PMCID: PMC5954123 DOI: 10.3389/fmicb.2018.00924] [Citation(s) in RCA: 89] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2018] [Accepted: 04/20/2018] [Indexed: 12/13/2022] Open
Abstract
Endophytic bacteria associated with medicinal plants possess unique strategies that enhance growth and suvival of host plants, many of which are mediated by distinctive secondary metabolites. These bacteria and their secondary metabolites are important subjects for both basic and applied research aimed at sustainable agriculture. In the present study, 114 endophytic strains isolated from the wild ethnomedicinal plant Glycyrrhiza uralensis (licorice) were screened for their in vitro antimicrobial activities against common fungal pathogens of tomato (Fusarium oxysporum f. sp., Fulvia fulva, Alternaria solani), cotton (Fusarium oxysporum f. sp. Vesinfectum, Verticillium dahliae), pomegranite (Ceratocystis fimbriata), Cymbidinium (Colletotrichum gloeosporioides), and Tsao-ko (Pestalotiopsis microspora and Fusarium graminearum) and the common bacteria Staphylococcus aureus, Bacillus cereus, Salmonella enteritidis, and Escherichia coli. Several Bacillus strains, particularly Bacillus atrophaeus and Bacillus mojavensis, had a broad spectrum of antifungal and antibacterial activity. A total of 16 strains, selected based on broad antimicrobial activity, were shown to contain at least one putative secondary metabolite-encoding gene (i.e., polyketide synthase or non-ribosomal peptide synthetase) and/or one lytic enzyme (i.e., protease, cellulase, lipase, chitinase), which may be important mediators of antagonistic activity against pathogens. Five strains, representing Bacillus atrophaeus and Bacillus mojavensis, were selected for plant growth chamber experiments based on strong in vitro antifungal activities. All five strains significantly reduced disease severity in Arabidopsis thaliana plants challenged with V. dahlia infection. Gas-chromatography/mass-spectrometry analysis of cell-free extracts of Bacillus atrophaeus strain XEGI50 showed that at least 13 compounds were produced only during co-cultivation with V. dahlia, including putative compounds known to have antimicrobial activity, such as 1,2-benzenedicarboxylic acid, bis (2-methylpropyl) ester; 9,12-octadecadienoic acid (Z,Z)-, methyl ester; 9-octadecenoic acid, methyl ester, (E)-; and decanedioic acid, bis(2-ethylhexyl) ester. To our knowledge, this study is the first to report that bacteria isolated from G. uralensis have biocontrol abilities. Our findings provide new insights into the antimicrobial activities of natural endophytes, particularly B. atrophaeus, and suggest this species may a promising candidate as a biocontrol agent to confer resistance to Verticillium wilt disease and other phytopathogens in cotton and other crops.
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Affiliation(s)
- Osama A. A. Mohamad
- Key Laboratory of Biogeography and Bioresource in Arid Land, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi, China
- Environmental Science Department, Institute of Environmental Studies, Arish University, El-Arish, Egypt
| | - Li Li
- Key Laboratory of Biogeography and Bioresource in Arid Land, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi, China
- School of Life Sciences, University of Nevada, Las Vegas, Las Vegas, NV, United States
| | - Jin-Biao Ma
- Key Laboratory of Biogeography and Bioresource in Arid Land, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi, China
| | - Shaimaa Hatab
- Department of Food Science and Technology, College of Environmental Agricultural Sciences, Arish University, El-Arish, Egypt
| | - Lin Xu
- Key Laboratory of Hexi Corridor Resources Utilization, Hexi University, Zhangye, China
| | - Jian-Wei Guo
- Key Laboratory of Biogeography and Bioresource in Arid Land, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi, China
- Key Laboratory of Crops with High Quality and Efficient Cultivation and Security Control, Yunnan Higher Education Institutions, Honghe University, Mengzi, China
| | - Bakhtiyor A. Rasulov
- Key Laboratory of Biogeography and Bioresource in Arid Land, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi, China
- Institute of Genetics and Plant Experimental Biology, Uzbekistan Academy of Sciences, Tashkent, Uzbekistan
| | - Yong-Hong Liu
- Key Laboratory of Biogeography and Bioresource in Arid Land, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi, China
| | - Brian P. Hedlund
- School of Life Sciences, University of Nevada, Las Vegas, Las Vegas, NV, United States
| | - Wen-Jun Li
- Key Laboratory of Biogeography and Bioresource in Arid Land, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi, China
- State Key Laboratory of Biocontrol and Guangdong Provincial Key Laboratory of Plant Resources, School of Life Sciences, Sun Yat-sen University, Guangzhou, China
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Zhao HW, Sun LT, Guo JW, Zhang WH, Lu W, Wu W, Wu BM, Sabbi G, Juchno M, Hafalia A, Ravaioli E, Xie DZ. Superconducting ECR ion source: From 24-28 GHz SECRAL to 45 GHz fourth generation ECR. Rev Sci Instrum 2018; 89:052301. [PMID: 29864795 DOI: 10.1063/1.5017479] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
The development of superconducting ECR source with higher magnetic fields and higher microwave frequency is the most straight forward path to achieve higher beam intensity and higher charge state performance. SECRAL, a superconducting third generation ECR ion source, is designed for 24-28 GHz microwave frequency operation with an innovative magnet configuration of sextupole coils located outside the three solenoids. SECRAL at 24 GHz has already produced a number of record beam intensities, such as 40Ar12+ 1.4 emA, 129Xe26+ 1.1 emA, 129Xe30+ 0.36 emA, and 209Bi31+ 0.68 emA. SECRAL-II, an upgraded version of SECRAL, was built successfully in less than 3 years and has recently been commissioned at full power of a 28 GHz gyrotron and three-frequency heating (28 + 45 + 18 GHz). New record beam intensities for highly charged ion production have been achieved, such as 620 eμA 40Ar16+, 15 eμA 40Ar18+, 146 eμA 86Kr28+, 0.5 eμA 86Kr33+, 53 eμA 129Xe38+, and 17 eμA 129Xe42+. Recent beam test results at SECRAL and SECRAL II have demonstrated that the production of more intense highly charged heavy ion beams needs higher microwave power and higher frequency, as the scaling law predicted. A 45 GHz superconducting ECR ion source FECR (a first fourth generation ECR ion source) is being built at IMP. FECR will be the world's first Nb3Sn superconducting-magnet-based ECR ion source with 6.5 T axial mirror field, 3.5 T sextupole field on the plasma chamber inner wall, and 20 kW at a 45 GHz microwave coupling system. This paper will focus on SECRAL performance studies at 24-28 GHz and technical design of 45 GHz FECR, which demonstrates a technical path for highly charged ion beam production from 24 to 28 GHz SECRAL to 45 GHz FECR.
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Affiliation(s)
- H W Zhao
- Institute of Modern Physics (IMP), CAS, Lanzhou 730000, China
| | - L T Sun
- Institute of Modern Physics (IMP), CAS, Lanzhou 730000, China
| | - J W Guo
- Institute of Modern Physics (IMP), CAS, Lanzhou 730000, China
| | - W H Zhang
- Institute of Modern Physics (IMP), CAS, Lanzhou 730000, China
| | - W Lu
- Institute of Modern Physics (IMP), CAS, Lanzhou 730000, China
| | - W Wu
- Institute of Modern Physics (IMP), CAS, Lanzhou 730000, China
| | - B M Wu
- Institute of Modern Physics (IMP), CAS, Lanzhou 730000, China
| | - G Sabbi
- Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - M Juchno
- Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - A Hafalia
- Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - E Ravaioli
- Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - D Z Xie
- Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
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Zhang YG, Zhou XK, Guo JW, Xiao M, Wang HF, Wang Y, Bobodzhanova K, Li WJ. Bacillus tamaricis sp. nov., an alkaliphilic bacterium isolated from a Tamarix cone soil. Int J Syst Evol Microbiol 2018; 68:558-563. [DOI: 10.1099/ijsem.0.002543] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Affiliation(s)
- Yong-Guang Zhang
- Key Laboratory of Biogeography and Bioresource in Arid Land, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Ürűmqi 830011, PR China
| | - Xing-Kui Zhou
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan University, Kunming 650091, PR China
| | - Jian-Wei Guo
- Key Laboratory of Biogeography and Bioresource in Arid Land, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Ürűmqi 830011, PR China
- Key Laboratory of Higher Quality and Efficient Cultivation and Security Control of Crops for Yunnan Province, Honghe University, Mengzi 661100, PR China
| | - Min Xiao
- State Key Laboratory of Biocontrol and Guangdong Provincial Key Laboratory of Plant Resources, School of Life Sciences, Sun Yat-Sen University, Guangzhou 510275, PR China
| | - Hong-Fei Wang
- College of Life Science, Liaoning Normal University, Dalian 116029, PR China
| | - Yun Wang
- Key Laboratory of Biogeography and Bioresource in Arid Land, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Ürűmqi 830011, PR China
| | - Khursheda Bobodzhanova
- Educational Scientific Centre of Biotechnology, Tajik National University, Dushanbe 734025, Tajikistan
| | - Wen-Jun Li
- State Key Laboratory of Biocontrol and Guangdong Provincial Key Laboratory of Plant Resources, School of Life Sciences, Sun Yat-Sen University, Guangzhou 510275, PR China
- Key Laboratory of Biogeography and Bioresource in Arid Land, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Ürűmqi 830011, PR China
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Guo JW, Lin ZY, Huang BR, Lu CH, Chen JK. Antigen detection with thermosensitive hydrophilicity of poly(N-isopropylacrylamide)-grafted poly(vinyl chloride) fibrous mats. J Mater Chem B 2018; 6:3486-3496. [DOI: 10.1039/c8tb00870a] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The static water contact angle of stimuli-responsive fibrous mats is used as a convenient index for rapid antigen detection.
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Affiliation(s)
- Jian-Wei Guo
- School of Chemical Engineering & Light Industry
- Guangdong University of Technology
- Guangzhou
- China
- Department of Materials Science and Engineering
| | - Zhen-Yu Lin
- Department of Materials Science and Engineering
- National Taiwan University of Science and Technology
- Taipei 106
- Republic of China
| | - Bohr-Ran Huang
- Graduate Institute of Electro-Optical Engineering and Department of Electronic Engineering
- National Taiwan University of Science and Technology
- Taipei
- Republic of China
| | - Chien-Hsing Lu
- Department of Obstetrics and Gynecology
- Taichung Veterans General Hospital
- Taichung
- Taiwan
- Department of Obstetrics and Gynecology
| | - Jem-Kun Chen
- Department of Materials Science and Engineering
- National Taiwan University of Science and Technology
- Taipei 106
- Republic of China
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Guo K, Shi KM, Guo JW, Xie XL. To drive Fe-based catalyst towards complete application in proton exchange membrane fuel cells (PEMFCs). Electrochim Acta 2017. [DOI: 10.1016/j.electacta.2017.01.123] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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Wang HF, Li QL, Zhang YG, Xiao M, Zhou XK, Guo JW, Duan YQ, Li WJ. Bacillus capparidis sp. nov., an endophytic bacterium isolated from roots of Capparis spinosa L. Int J Syst Evol Microbiol 2017; 67:282-287. [DOI: 10.1099/ijsem.0.001616] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Affiliation(s)
- Hong-Fei Wang
- Key Laboratory of Biogeography and Bioresource in Arid Land, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Ürűmqi 830011, PR China
- College of Life Science, Liaoning Normal University, Dalian 116029, PR China
| | - Qiu-Li Li
- College of Life Science, Liaoning Normal University, Dalian 116029, PR China
| | - Yong-Guang Zhang
- Key Laboratory of Biogeography and Bioresource in Arid Land, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Ürűmqi 830011, PR China
| | - Min Xiao
- State Key Laboratory of Biocontrol and Guangdong Provincial Key Laboratory of Plant Resources, School of Life Sciences, Sun Yat-Sen University, Guangzhou 510275, PR China
| | - Xing-Kui Zhou
- China Tobacco Yunnan Industrial Co., Ltd, Kunming 650231, PR China
| | - Jian-Wei Guo
- Key Laboratory of Crops with High Quality and Efficient Cultivation and Security Control, Yunnan Higher Education Institutions, Honghe University, Mengzi 661100, PR China
| | - Yan-Qing Duan
- China Tobacco Yunnan Industrial Co., Ltd, Kunming 650231, PR China
| | - Wen-Jun Li
- Key Laboratory of Biogeography and Bioresource in Arid Land, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Ürűmqi 830011, PR China
- State Key Laboratory of Biocontrol and Guangdong Provincial Key Laboratory of Plant Resources, School of Life Sciences, Sun Yat-Sen University, Guangzhou 510275, PR China
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31
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Li X, Xiang ZP, Chen WQ, Huang QL, Liu TG, Li Q, Zhong SF, Zhang M, Guo JW, Lei L, Luo PG. Reevaluation of Two Quantitative Trait Loci for Type II Resistance to Fusarium Head Blight in Wheat Germplasm PI 672538. Phytopathology 2017; 107:92-99. [PMID: 27571309 DOI: 10.1094/phyto-04-16-0170-r] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Fusarium head blight (FHB), mainly caused by Fusarium graminearum, is a destructive disease in wheat. A population consisting of 229 F2 and F2:3 plants derived from the cross PI 672538 × L661 was used to evaluate the reactions to FHB. The FHB resistance data distribution in the F2 population indicates that some quantitative trait loci (QTLs) were controlling the FHB resistance in PI 672538. We further detected two major QTLs (Qfhs-2B, Qfhs-3B) from analysis of the resistance data and the PCR-amplified results using WinQTLCart 2.5 software. Qfhs-2B, flanked by Xbarc55-2B and Xbarc1155-2B, explained more than 11.6% of the phenotypic variation of the percentage of diseased spikelets (PDS), and Qfhs-3B, flanked by Xwmc54-3B and Xgwm566-3B, explained more than 10% of the PDS phenotypic variation in the F2:3 population. In addition, Qfhs-3B was different from Fhb1 in terms of the pedigree, inheritance, resistance response, chromosomal location, and marker diagnosis. We also detected QTLs for other disease resistance indices, including the percentage of damaged kernels and 1,000-grain weight, in similar chromosomal regions. Therefore, the FHB resistance of PI 672538 was mainly controlled by two major QTLs, mapped on 2B (FhbL693a) and 3B (FhbL693b). PI 672538 could be a useful germplasm for improving wheat FHB resistance.
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Affiliation(s)
- X Li
- First, second, fourth, sixth, seventh, eighth, ninth, and eleventh authors: State Key Laboratory of Plant Breeding and Genetics, Sichuan Agricultural University, Chengdu, Sichuan 611130, China; first, third, fifth, and eleventh authors: State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences (CAAS), Beijing 100193, China; second author: College of Food Science and Technology, Sichuan Tourism University, Chengdu, Sichuan 610100, China; sixth author: Department of Biology and Chemistry, Chongqing Industry and Trade Polytechnic Institute, Fuling District of Chongqing 408000, China; and tenth author: Department of Plant Pathology, Kansas State University, Manhattan 66506
| | - Z P Xiang
- First, second, fourth, sixth, seventh, eighth, ninth, and eleventh authors: State Key Laboratory of Plant Breeding and Genetics, Sichuan Agricultural University, Chengdu, Sichuan 611130, China; first, third, fifth, and eleventh authors: State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences (CAAS), Beijing 100193, China; second author: College of Food Science and Technology, Sichuan Tourism University, Chengdu, Sichuan 610100, China; sixth author: Department of Biology and Chemistry, Chongqing Industry and Trade Polytechnic Institute, Fuling District of Chongqing 408000, China; and tenth author: Department of Plant Pathology, Kansas State University, Manhattan 66506
| | - W Q Chen
- First, second, fourth, sixth, seventh, eighth, ninth, and eleventh authors: State Key Laboratory of Plant Breeding and Genetics, Sichuan Agricultural University, Chengdu, Sichuan 611130, China; first, third, fifth, and eleventh authors: State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences (CAAS), Beijing 100193, China; second author: College of Food Science and Technology, Sichuan Tourism University, Chengdu, Sichuan 610100, China; sixth author: Department of Biology and Chemistry, Chongqing Industry and Trade Polytechnic Institute, Fuling District of Chongqing 408000, China; and tenth author: Department of Plant Pathology, Kansas State University, Manhattan 66506
| | - Q L Huang
- First, second, fourth, sixth, seventh, eighth, ninth, and eleventh authors: State Key Laboratory of Plant Breeding and Genetics, Sichuan Agricultural University, Chengdu, Sichuan 611130, China; first, third, fifth, and eleventh authors: State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences (CAAS), Beijing 100193, China; second author: College of Food Science and Technology, Sichuan Tourism University, Chengdu, Sichuan 610100, China; sixth author: Department of Biology and Chemistry, Chongqing Industry and Trade Polytechnic Institute, Fuling District of Chongqing 408000, China; and tenth author: Department of Plant Pathology, Kansas State University, Manhattan 66506
| | - T G Liu
- First, second, fourth, sixth, seventh, eighth, ninth, and eleventh authors: State Key Laboratory of Plant Breeding and Genetics, Sichuan Agricultural University, Chengdu, Sichuan 611130, China; first, third, fifth, and eleventh authors: State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences (CAAS), Beijing 100193, China; second author: College of Food Science and Technology, Sichuan Tourism University, Chengdu, Sichuan 610100, China; sixth author: Department of Biology and Chemistry, Chongqing Industry and Trade Polytechnic Institute, Fuling District of Chongqing 408000, China; and tenth author: Department of Plant Pathology, Kansas State University, Manhattan 66506
| | - Q Li
- First, second, fourth, sixth, seventh, eighth, ninth, and eleventh authors: State Key Laboratory of Plant Breeding and Genetics, Sichuan Agricultural University, Chengdu, Sichuan 611130, China; first, third, fifth, and eleventh authors: State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences (CAAS), Beijing 100193, China; second author: College of Food Science and Technology, Sichuan Tourism University, Chengdu, Sichuan 610100, China; sixth author: Department of Biology and Chemistry, Chongqing Industry and Trade Polytechnic Institute, Fuling District of Chongqing 408000, China; and tenth author: Department of Plant Pathology, Kansas State University, Manhattan 66506
| | - S F Zhong
- First, second, fourth, sixth, seventh, eighth, ninth, and eleventh authors: State Key Laboratory of Plant Breeding and Genetics, Sichuan Agricultural University, Chengdu, Sichuan 611130, China; first, third, fifth, and eleventh authors: State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences (CAAS), Beijing 100193, China; second author: College of Food Science and Technology, Sichuan Tourism University, Chengdu, Sichuan 610100, China; sixth author: Department of Biology and Chemistry, Chongqing Industry and Trade Polytechnic Institute, Fuling District of Chongqing 408000, China; and tenth author: Department of Plant Pathology, Kansas State University, Manhattan 66506
| | - M Zhang
- First, second, fourth, sixth, seventh, eighth, ninth, and eleventh authors: State Key Laboratory of Plant Breeding and Genetics, Sichuan Agricultural University, Chengdu, Sichuan 611130, China; first, third, fifth, and eleventh authors: State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences (CAAS), Beijing 100193, China; second author: College of Food Science and Technology, Sichuan Tourism University, Chengdu, Sichuan 610100, China; sixth author: Department of Biology and Chemistry, Chongqing Industry and Trade Polytechnic Institute, Fuling District of Chongqing 408000, China; and tenth author: Department of Plant Pathology, Kansas State University, Manhattan 66506
| | - J W Guo
- First, second, fourth, sixth, seventh, eighth, ninth, and eleventh authors: State Key Laboratory of Plant Breeding and Genetics, Sichuan Agricultural University, Chengdu, Sichuan 611130, China; first, third, fifth, and eleventh authors: State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences (CAAS), Beijing 100193, China; second author: College of Food Science and Technology, Sichuan Tourism University, Chengdu, Sichuan 610100, China; sixth author: Department of Biology and Chemistry, Chongqing Industry and Trade Polytechnic Institute, Fuling District of Chongqing 408000, China; and tenth author: Department of Plant Pathology, Kansas State University, Manhattan 66506
| | - L Lei
- First, second, fourth, sixth, seventh, eighth, ninth, and eleventh authors: State Key Laboratory of Plant Breeding and Genetics, Sichuan Agricultural University, Chengdu, Sichuan 611130, China; first, third, fifth, and eleventh authors: State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences (CAAS), Beijing 100193, China; second author: College of Food Science and Technology, Sichuan Tourism University, Chengdu, Sichuan 610100, China; sixth author: Department of Biology and Chemistry, Chongqing Industry and Trade Polytechnic Institute, Fuling District of Chongqing 408000, China; and tenth author: Department of Plant Pathology, Kansas State University, Manhattan 66506
| | - P G Luo
- First, second, fourth, sixth, seventh, eighth, ninth, and eleventh authors: State Key Laboratory of Plant Breeding and Genetics, Sichuan Agricultural University, Chengdu, Sichuan 611130, China; first, third, fifth, and eleventh authors: State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences (CAAS), Beijing 100193, China; second author: College of Food Science and Technology, Sichuan Tourism University, Chengdu, Sichuan 610100, China; sixth author: Department of Biology and Chemistry, Chongqing Industry and Trade Polytechnic Institute, Fuling District of Chongqing 408000, China; and tenth author: Department of Plant Pathology, Kansas State University, Manhattan 66506
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Zhang YG, Lu XH, Ding YB, Wang SJ, Zhou XK, Wang HF, Guo JW, Liu YH, Duan YQ, Li WJ. Lipingzhangella halophila gen. nov., sp. nov., a new member of the family Nocardiopsaceae. Int J Syst Evol Microbiol 2016; 66:4071-4076. [DOI: 10.1099/ijsem.0.001312] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Affiliation(s)
- Yong-Guang Zhang
- Key Laboratory of Biogeography and Bioresource in Arid Land, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Ürűmqi 830011, PR China
| | - Xin-Hua Lu
- New Drug Research & Development Center, North China Pharmaceutical Group Corporation, National Microbial Medicine Engineering & Research Center, Shijiazhuang 050015, PR China
| | - Yan-Bo Ding
- New Drug Research & Development Center, North China Pharmaceutical Group Corporation, National Microbial Medicine Engineering & Research Center, Shijiazhuang 050015, PR China
| | - Su-Juan Wang
- China Tobacco Yunnan Industrial Co, Ltd., Kunming 650231, PR China
| | - Xing-Kui Zhou
- China Tobacco Yunnan Industrial Co, Ltd., Kunming 650231, PR China
| | - Hong-Fei Wang
- Key Laboratory of Biogeography and Bioresource in Arid Land, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Ürűmqi 830011, PR China
- College of Life Science, Liaoning Normal University, Dalian 116029, PR China
| | - Jian-Wei Guo
- Key Laboratory of Biogeography and Bioresource in Arid Land, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Ürűmqi 830011, PR China
- Key Laboratory of Higher Quality and Efficient Cultivation and Security Control of Crops for Yunnan Province, Honghe University, Mengzi 661100, PR China
| | - Yong-Hong Liu
- Key Laboratory of Biogeography and Bioresource in Arid Land, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Ürűmqi 830011, PR China
| | - Yan-Qing Duan
- China Tobacco Yunnan Industrial Co, Ltd., Kunming 650231, PR China
| | - Wen-Jun Li
- State Key Laboratory of Biocontrol and Guangdong Provincial Key Laboratory of Plant Resources, School of Life Sciences, Sun Yat-Sen University, Guangzhou 510275, PR China
- Key Laboratory of Biogeography and Bioresource in Arid Land, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Ürűmqi 830011, PR China
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Zhang YG, Lu XH, Ding YB, Zhou XK, Wang HF, Guo JW, Liu YH, Duan YQ, Li WJ. Nocardiopsis rhizosphaerae sp. nov., isolated from rhizosphere soil of Halocnermum strobilaceum (Pall.) Bieb. Int J Syst Evol Microbiol 2016; 66:5129-5133. [PMID: 27613380 DOI: 10.1099/ijsem.0.001483] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
An alkalitolerant actinomycete strain, designated EGI 80674T, was isolated from a rhizosphere soil of Halocnermumstrobilaceum (Pall.) Bieb in Xinjiang, north-west China and subjected to a taxonomic characterization using a polyphasic approach. Strain EGI 80674T formed white aerial hyphae with long spore chains. Whole-cell hydrolysates of the isolate contained meso-diaminopimelic acid as the diagnostic diamino acid with no diagnostic sugars. The major fatty acids identified were iso-C16 : 0, anteiso-C17 : 0 and 10-methyl-C18 : 0TBSA. The predominant menaquinones detected were MK-10(H8) and MK-10(H6). The G+C content of the genomic DNA of strain EGI 80674T was 70.9 mol%. Strain EGI 80674T showed the highest 16S rRNA gene sequence similarity (97.24 %) to Nocardiopsis nikkonensis NBRC 102170T. The DNA-DNA relatedness value of strain EGI 80674T and N. nikkonensis NBRC 102170T was 18.4±1.3 %. Phenotypical, chemotaxonomic and phylogenetic characteristics and DNA-DNA hybridization data suggest that strain EGI 80674T represents a novel species of the genus Nocardiopsis, for which the name Nocardiopsis rhizosphaerae sp. nov. is proposed. The type strain is EGI 80674T (=CGMCC 4.7228T=KCTC 39673T).
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Affiliation(s)
- Yong-Guang Zhang
- Key Laboratory of Biogeography and Bioresource in Arid Land, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Ürűmqi 830011, PR China
| | - Xin-Hua Lu
- New Drug Research & Development Center, North China Pharmaceutical Group Corporation, National Microbial Medicine Engineering & Research Center, Shijiazhuang 050015, PR China
| | - Yan-Bo Ding
- New Drug Research & Development Center, North China Pharmaceutical Group Corporation, National Microbial Medicine Engineering & Research Center, Shijiazhuang 050015, PR China
| | - Xing-Kui Zhou
- China Tobacco Yunnan Industrial Co, Ltd., Kunming 650231, PR China
| | - Hong-Fei Wang
- Key Laboratory of Biogeography and Bioresource in Arid Land, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Ürűmqi 830011, PR China.,College of Life Science, Liaoning Normal University, Dalian 116029, PR China
| | - Jian-Wei Guo
- Key Laboratory of Biogeography and Bioresource in Arid Land, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Ürűmqi 830011, PR China.,Key Laboratory of Higher Quality and Efficient Cultivation and Security Control of Crops for Yunnan Province, Honghe University, Mengzi 661100, PR China
| | - Yong-Hong Liu
- Key Laboratory of Biogeography and Bioresource in Arid Land, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Ürűmqi 830011, PR China
| | - Yan-Qing Duan
- China Tobacco Yunnan Industrial Co, Ltd., Kunming 650231, PR China
| | - Wen-Jun Li
- State Key Laboratory of Biocontrol and Guangdong Provincial Key Laboratory of Plant Resources, School of Life Sciences, Sun Yat-Sen University, Guangzhou 510275, PR China.,Key Laboratory of Biogeography and Bioresource in Arid Land, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Ürűmqi 830011, PR China
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34
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Li YQ, Li L, Fu YS, Cui ZQ, Duan YQ, Salam N, Guo JW, Chen W, Li WJ. Pseudoclavibacter endophyticus sp. nov., isolated from roots of Glycyrrhiza uralensis. Int J Syst Evol Microbiol 2016; 66:1287-1292. [DOI: 10.1099/ijsem.0.000876] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Affiliation(s)
- Yan-Qiong Li
- Kunming Medical University Haiyuan College,Kunming, 650106,PR China
| | - Li Li
- Key Laboratory of Biogeography and Bioresource in Arid Land, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences,Urumqi, 830011,PR China
| | - Yu-Song Fu
- Yunnan Institute of Microbiology, Yunnan University,Kunming, 650091,PR China
| | - Zhao-Qiong Cui
- Kunming Medical University Haiyuan College,Kunming, 650106,PR China
| | - Yan-Qing Duan
- China Tobacco Yunnan Industrial Co. Ltd,Kunming, 650231,PR China
| | - Nimaichand Salam
- State Key Laboratory of Biocontrol and Guangdong Provincial Key Laboratory of Plant Resources, School of Life Sciences, Sun Yat-Sen University,Guangzhou, 510275,PR China
| | - Jian-Wei Guo
- Key Laboratory of Biogeography and Bioresource in Arid Land, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences,Urumqi, 830011,PR China
| | - Wei Chen
- China Tobacco Yunnan Industrial Co. Ltd,Kunming, 650231,PR China
| | - Wen-Jun Li
- Yunnan Institute of Microbiology, Yunnan University,Kunming, 650091,PR China
- Key Laboratory of Biogeography and Bioresource in Arid Land, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences,Urumqi, 830011,PR China
- State Key Laboratory of Biocontrol and Guangdong Provincial Key Laboratory of Plant Resources, School of Life Sciences, Sun Yat-Sen University,Guangzhou, 510275,PR China
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35
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Zhang YG, Lu XH, Ding YB, Zhou XK, Li L, Guo JW, Wang HF, Duan YQ, Li WJ. Phytoactinopolyspora alkaliphila sp. nov., an alkaliphilic actinomycete isolated from a saline-alkaline soil. Int J Syst Evol Microbiol 2016; 66:2058-2063. [PMID: 26920762 DOI: 10.1099/ijsem.0.000992] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
An alkaliphilic, filamentous actinomycete, designated EGI 80629T, was isolated from a soil sample of Xinjiang, north-west China. Strain EGI 80629T grew at pH 6.0-11.0 (optimum pH 9.0-10.0) and in the presence of 0-13.0 % NaCl (optimum 3.0-5.0 %). The isolate formed fragmented substrate mycelia, and aerial hyphae with short spore chains with rod-like spores. Whole-cell hydrolysates of the isolate contained ll-diaminopimelic acid as the diagnostic diamino acid, and mannose and rhamnose as diagnostic sugars. The major fatty acids identified were iso-C15 : 0, iso-C16 : 0, anteiso-C15 : 0 and iso-C17 : 0. The predominant menaquinone was MK-9(H4), while the polar lipids were diphosphatidylglycerol, phosphatidylglycerol, two phosphatidylinositol mannosides, five unknown phospholipids, three unknown phosphoglycolipids, one unknown glycolipid, four unknown polar lipids and one unknown aminophospholipid. The G+C content of the genomic DNA was 67.3 mol%. Phylogenetic analysis based on 16S rRNA gene sequences showed that strain EGI 80629T clustered with the genus Phytoactinopolyspora. The 16S rRNA gene sequence similarity between strain EGI 80629T and Phytoactinopolyspora endophytica EGI 60009T was 96.8 %. Based on morphological, chemotaxonomic and phylogenetic characteristics, strain EGI 80629T represents a novel species of the genus Phytoactinopolyspora, for which the name Phytoactinopolyspora alkaliphila sp. nov. is proposed. The type strain is EGI 80629T ( = CGMCC 4.7225T = KCTC 39701T).
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Affiliation(s)
- Yong-Guang Zhang
- Key Laboratory of Biogeography and Bioresource in Arid Land, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences,Ürümqi 830011, PRChina
| | - Xin-Hua Lu
- New Drug Research & Development Center, North China Pharmaceutical Group Corporation, National Microbial Medicine Engineering & Research Center,Shijiazhuang 050015, PRChina
| | - Yan-Bo Ding
- New Drug Research & Development Center, North China Pharmaceutical Group Corporation, National Microbial Medicine Engineering & Research Center,Shijiazhuang 050015, PRChina
| | - Xing-Kui Zhou
- China Tobacco Yunnan Industrial Co, Ltd,Kunming 650231, PRChina
| | - Li Li
- Key Laboratory of Biogeography and Bioresource in Arid Land, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences,Ürümqi 830011, PRChina
| | - Jian-Wei Guo
- Key Laboratory of Biogeography and Bioresource in Arid Land, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences,Ürümqi 830011, PRChina.,Key Laboratory of Higher Quality and Efficient Cultivation and Security Control of Crops for Yunnan Province, Honghe University,Mengzi 661100, PRChina
| | - Hong-Fei Wang
- Key Laboratory of Biogeography and Bioresource in Arid Land, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences,Ürümqi 830011, PRChina.,College of Life Science, Liaoning Normal University,Dalian 116029, PRChina
| | - Yan-Qing Duan
- China Tobacco Yunnan Industrial Co, Ltd,Kunming 650231, PRChina
| | - Wen-Jun Li
- State Key Laboratory of Biocontrol and Guangdong Provincial Key Laboratory of Plant Resources, School of Life Sciences, Sun Yat-Sen University,Guangzhou 510275, PRChina.,Key Laboratory of Biogeography and Bioresource in Arid Land, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences,Ürümqi 830011, PRChina
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36
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Zhang YG, Wang HF, Yang LL, Guo JW, Xiao M, Huang MJ, Nabil Hozzein W, Li WJ. Ornithinicoccus halotolerans sp. nov., and emended description of the genus Ornithinicoccus. Int J Syst Evol Microbiol 2016; 66:1894-1899. [PMID: 26868220 DOI: 10.1099/ijsem.0.000964] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
A halotolerant actinobacterial strain, designated EGI 80423T, was isolated from a desert soil of Xinjiang, north-west China, and subjected to a polyphasic taxonomic characterization. Strain EGI 80423T grew at pH 7.0-10.0 and with 0-14.0% (w/v) NaCl, optimally at pH 8.0-9.0 and with 2.0-4.0% (w/v) NaCl. Cells of strain EGI 80423T were Gram-stain-positive, non-motile cocci with diameters of 0.6-0.8 μm. The diagnostic diamino acid of the peptidoglycan was ornithine, and the interpeptide bridge was Orn ← Glu. The major fatty acids identified were iso-C17:1ω9c, iso-C15:0 and iso-C17:0. The predominant menaquinone was MK-8(H4), while the polar lipids were diphosphatidylglycerol, phosphatidylglycerol, two unknown phospholipids, two unknown glycolipids, six unknown phosphoglycolipids and five unknown polar lipids. The G+C content of the genomic DNA was 72.8 mol%. Phylogenetic analysis based on 16S rRNA gene sequences showed that strain EGI 80423T clustered with the single member of the genus Ornithinicoccus. Sequence similarity between strain EGI 80423T and Ornithinicoccus hortensis NBRC 16434T. Because the type strain has been provided by NBRC, Japan was 97.7%. The DNA-DNA relatedness value between strain EGI 80423T and O. hortensis NBRC 16434T was 36.84%. Based on morphological, chemotaxonomic and phylogenetic characteristics, and DNA-DNA hybridization data, strain EGI 80423T represents a novel species of the genus Ornithinicoccus, for which the name Ornithinicoccus halotolerans sp. nov. is proposed. The type strain is EGI 80423T (=CGMCC 1.14989T=KCTC 39700T). The description of the genus Ornithinicoccus has also been emended.
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Affiliation(s)
- Yong-Guang Zhang
- Key Laboratory of Biogeography and Bioresource in Arid Land, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Ürumqi 830011, PRChina
| | - Hong-Fei Wang
- Key Laboratory of Biogeography and Bioresource in Arid Land, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Ürumqi 830011, PRChina.,College of Life Science, Liaoning Normal University, Dalian 116029, PRChina
| | - Ling-Ling Yang
- Yunnan Institute of Microbiology, Yunnan University, Kunming, Yunnan, 650091, PRChina
| | - Jian-Wei Guo
- Key Laboratory of Biogeography and Bioresource in Arid Land, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Ürumqi 830011, PRChina
| | - Min Xiao
- State Key Laboratory of Biocontrol and Guangdong Provincial Key Laboratory of Plant Resources, School of Life Sciences, Sun Yat-Sen University, Guangzhou 510275, PRChina
| | - Mei-Juan Huang
- Yunnan Institute of Microbiology, Yunnan University, Kunming, Yunnan, 650091, PRChina
| | - Wael Nabil Hozzein
- Bioproducts Research Chair (BRC), College of Science, King Saud University, Riyadh 11451, Kingdom of Saudi Arabia.,Botany and Microbiology Department, Faculty of Science, Beni-Suef University, Beni-Suef 62511, Egypt
| | - Wen-Jun Li
- State Key Laboratory of Biocontrol and Guangdong Provincial Key Laboratory of Plant Resources, School of Life Sciences, Sun Yat-Sen University, Guangzhou 510275, PRChina.,Yunnan Institute of Microbiology, Yunnan University, Kunming, Yunnan, 650091, PRChina.,Key Laboratory of Biogeography and Bioresource in Arid Land, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Ürumqi 830011, PRChina
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37
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Sun L, Guo JW, Lu W, Zhang WH, Feng YC, Yang Y, Qian C, Fang X, Ma HY, Zhang XZ, Zhao HW. Advancement of highly charged ion beam production by superconducting ECR ion source SECRAL (invited). Rev Sci Instrum 2016; 87:02A707. [PMID: 26931925 DOI: 10.1063/1.4933123] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
At Institute of Modern Physics (IMP), Chinese Academy of Sciences (CAS), the superconducting Electron Cyclotron Resonance (ECR) ion source SECRAL (Superconducting ECR ion source with Advanced design in Lanzhou) has been put into operation for about 10 years now. It has been the main working horse to deliver intense highly charged heavy ion beams for the accelerators. Since its first plasma at 18 GHz, R&D work towards more intense highly charged ion beam production as well as the beam quality investigation has never been stopped. When SECRAL was upgraded to its typical operation frequency 24 GHz, it had already showed its promising capacity of very intense highly charged ion beam production. And it has also provided the strong experimental support for the so called scaling laws of microwave frequency effect. However, compared to the microwave power heating efficiency at 18 GHz, 24 GHz microwave heating does not show the ω(2) scale at the same power level, which indicates that microwave power coupling at gyrotron frequency needs better understanding. In this paper, after a review of the operation status of SECRAL with regard to the beam availability and stability, the recent study of the extracted ion beam transverse coupling issues will be discussed, and the test results of the both TE01 and HE11 modes will be presented. A general comparison of the performance working with the two injection modes will be given, and a preliminary analysis will be introduced. The latest results of the production of very intense highly charged ion beams, such as 1.42 emA Ar(12+), 0.92 emA Xe(27+), and so on, will be presented.
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Affiliation(s)
- L Sun
- Institute of Modern Physics, CAS, Lanzhou 730000, China
| | - J W Guo
- Institute of Modern Physics, CAS, Lanzhou 730000, China
| | - W Lu
- Institute of Modern Physics, CAS, Lanzhou 730000, China
| | - W H Zhang
- Institute of Modern Physics, CAS, Lanzhou 730000, China
| | - Y C Feng
- Institute of Modern Physics, CAS, Lanzhou 730000, China
| | - Y Yang
- Institute of Modern Physics, CAS, Lanzhou 730000, China
| | - C Qian
- Institute of Modern Physics, CAS, Lanzhou 730000, China
| | - X Fang
- Institute of Modern Physics, CAS, Lanzhou 730000, China
| | - H Y Ma
- Institute of Modern Physics, CAS, Lanzhou 730000, China
| | - X Z Zhang
- Institute of Modern Physics, CAS, Lanzhou 730000, China
| | - H W Zhao
- Institute of Modern Physics, CAS, Lanzhou 730000, China
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38
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Lu W, Qian C, Sun LT, Zhang XZ, Fang X, Guo JW, Yang Y, Feng YC, Ma BH, Xiong B, Ruan L, Zhao HW, Zhan WL, Xie D. High intensity high charge state ion beam production with an evaporative cooling magnet ECRIS. Rev Sci Instrum 2016; 87:02A738. [PMID: 26931956 DOI: 10.1063/1.4936183] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
LECR4 (Lanzhou ECR ion source No. 4) is a room temperature electron cyclotron resonance ion source, designed to produce high current, high charge state ion beams for the SSC-LINAC injector (a new injector for sector separated cyclotron) at the Institute of Modern Physics. LECR4 also serves as a PoP machine for the application of evaporative cooling technology in accelerator field. To achieve those goals, LECR4 ECR ion source has been optimized for the operation at 18 GHz. During 2014, LECR4 ion source was commissioned at 18 GHz microwave of 1.6 kW. To further study the influence of injection stage to the production of medium and high charge state ion beams, in March 2015, the injection stage with pumping system was installed, and some optimum results were produced, such as 560 eμA of O(7+), 620 eμA of Ar(11+), 430 eμA of Ar(12+), 430 eμA of Xe(20+), and so on. The comparison will be discussed in the paper.
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Affiliation(s)
- W Lu
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 73000, China
| | - C Qian
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 73000, China
| | - L T Sun
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 73000, China
| | - X Z Zhang
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 73000, China
| | - X Fang
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 73000, China
| | - J W Guo
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 73000, China
| | - Y Yang
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 73000, China
| | - Y C Feng
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 73000, China
| | - B H Ma
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 73000, China
| | - B Xiong
- Institute of Electrical Engineering, CAS, Beijing 100190, China
| | - L Ruan
- Institute of Electrical Engineering, CAS, Beijing 100190, China
| | - H W Zhao
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 73000, China
| | - W L Zhan
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 73000, China
| | - D Xie
- Nuclear Science Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
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Guo JW, Sun L, Niu XJ, Zhang XZ, Lu W, Zhang WH, Feng YC, Zhao HW. 24 GHz microwave mode converter optimized for superconducting ECR ion source SECRAL. Rev Sci Instrum 2016; 87:02A708. [PMID: 26931926 DOI: 10.1063/1.4933023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Over-sized round waveguide with a diameter about Ø33.0 mm excited in the TE01 mode has been widely adopted for microwave transmission and coupling to the ECR (Electron Cyclotron Resonance) plasma with the superconducting ECR ion sources operating at 24 or 28 GHz, such as SECRAL and VENUS. In order to study the impact of different microwave modes on ECRH (Electron Cyclotron Resonance Heating) efficiency and especially the production of highly charged ions, a set of compact and efficient TE01-HE11 mode conversion and coupling system applicable to 24 GHz SECRAL whose overall length is 330 mm has been designed, fabricated and tested. Good agreements between off-line tests and calculation results have been achieved, which indicates the TE01-HE11 converter meets the application design. The detailed results of the optimized coupling system will be presented in the paper.
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Affiliation(s)
- J W Guo
- Institute of Modern Physics (IMP), Chinese Academy of Science, Lanzhou 730000, China
| | - L Sun
- Institute of Modern Physics (IMP), Chinese Academy of Science, Lanzhou 730000, China
| | - X J Niu
- University of Electronic Science and Technology of China, Chengdu 610054, China
| | - X Z Zhang
- Institute of Modern Physics (IMP), Chinese Academy of Science, Lanzhou 730000, China
| | - W Lu
- Institute of Modern Physics (IMP), Chinese Academy of Science, Lanzhou 730000, China
| | - W H Zhang
- Institute of Modern Physics (IMP), Chinese Academy of Science, Lanzhou 730000, China
| | - Y C Feng
- Institute of Modern Physics (IMP), Chinese Academy of Science, Lanzhou 730000, China
| | - H W Zhao
- Institute of Modern Physics (IMP), Chinese Academy of Science, Lanzhou 730000, China
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40
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Zhang YG, Chen JY, Wang HF, Xiao M, Yang LL, Guo JW, Zhou EM, Zhang YM, Li WJ. Egicoccus halophilus gen. nov., sp. nov., a halophilic, alkalitolerant actinobacterium and proposal of Egicoccaceae fam. nov. and Egicoccales ord. nov. Int J Syst Evol Microbiol 2015; 66:530-535. [PMID: 26552810 DOI: 10.1099/ijsem.0.000749] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
A novel Gram-stain-positive, non-motile, moderately halophilic and alkalitolerant actinobacterium, designated EGI 80432T, was isolated from a saline-alkaline soil of Xinjiang province, north-west China. Cells were non-endospore-forming cocci with a diameter of 0.5-0.8 μm. Strain EGI 80432T grew in the presence of 0-9 % (w/v) NaCl (optimum at 3-5 %), and also grew within the pH range 6.0-10.0 (optimum at pH 8.0-9.0) on marine 2216E medium. The peptidoglycan type was A1γ. The whole-cell hydrolysates contained glucose, galactose, mannose and three unknown sugars as major sugars. The predominant menaquinone was MK-9(H4). The major fatty acids were C17 : 1ω8c, summed feature 3 (C16 : 1ω7c/C16 : 1ω6c), C18 : 1ω9c and iso-C15 : 0 The polar lipids comprised diphosphatidylglycerol, phosphatidylglycerol, one unknown phosphoglycolipid, three unknown phospholipids and four unknown polar lipids. The genomic DNA G+C content was 75.2 mol%. Phylogenetic analysis based on 16S rRNA gene sequences revealed that strain EGI 80432T clustered within the radius of the class Nitriliruptoria. Levels of sequence similarity between strain EGI 80432T and its phylogenetic neighbours Nitriliruptor alkaliphilus ANL-iso2T and Euzebya tangerina F10T were 94.1 and 88.1 %, respectively. Based on morphological, physiological and chemotaxonomic characteristics and phylogenetic analysis, a novel species of a new genus, Egicoccus halophilus gen. nov., sp. nov., is proposed, within the new family and new order Egicoccaceae fam. nov. and Egicoccales ord. nov. in the class Nitriliruptoria. The type strain of Egicoccus halophilus is EGI 80432T ( = CGMCC 1.14988T = KCTC 33612T).
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Affiliation(s)
- Yong-Guang Zhang
- Key Laboratory of Biogeography and Bioresource in Arid Land, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi 830011, PRChina
| | - Ji-Yue Chen
- Key Laboratory of Biogeography and Bioresource in Arid Land, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi 830011, PRChina.,Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Mengla 666303, PRChina
| | - Hong-Fei Wang
- Key Laboratory of Biogeography and Bioresource in Arid Land, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi 830011, PRChina.,College of Life Science, Liaoning Normal University, Dalian 116029, PRChina
| | - Min Xiao
- State Key Laboratory of Biocontrol and Guangdong Provincial Key Laboratory of Plant Resources, College of Ecology and Evolution, Sun Yat-Sen University, Guangzhou 510275, PRChina
| | - Ling-Ling Yang
- Yunnan Institute of Microbiology, Yunnan University, Kunming 650091, PRChina
| | - Jian-Wei Guo
- Key Laboratory of Biogeography and Bioresource in Arid Land, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi 830011, PRChina.,Key Laboratory of Higher Quality and Efficient Cultivation and Security Control of Crops for Yunnan Province, Honghe University, Mengzi 661100, PRChina
| | - En-Min Zhou
- State Key Laboratory of Biocontrol and Guangdong Provincial Key Laboratory of Plant Resources, College of Ecology and Evolution, Sun Yat-Sen University, Guangzhou 510275, PRChina.,Yunnan Institute of Microbiology, Yunnan University, Kunming 650091, PRChina
| | - Yuan-Min Zhang
- Key Laboratory of Biogeography and Bioresource in Arid Land, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi 830011, PRChina
| | - Wen-Jun Li
- State Key Laboratory of Biocontrol and Guangdong Provincial Key Laboratory of Plant Resources, College of Ecology and Evolution, Sun Yat-Sen University, Guangzhou 510275, PRChina.,Key Laboratory of Biogeography and Bioresource in Arid Land, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi 830011, PRChina.,Yunnan Institute of Microbiology, Yunnan University, Kunming 650091, PRChina
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41
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Zhang YG, Liu Q, Wang HF, Park DJ, Guo JW, Kim CJ, Zhang YM, Li WJ. Nocardiopsis ansamitocini sp. nov., a new producer of ansamitocin P-3 of the genus Nocardiopsis. Int J Syst Evol Microbiol 2015; 66:230-235. [PMID: 26486850 DOI: 10.1099/ijsem.0.000703] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
An alkalitolerant actinomycete strain, designated EGI 80425T, capable of producing ansamitocin P-3, was isolated from a saline-alkali soil sample of Xinjiang province, north-west China, and subjected to a polyphasic taxonomic characterization. Strain EGI 80425T formed non-fragmented substrate mycelia and white aerial hyphae with long spore chains. Whole-cell hydrolysates of the isolate contained meso-diaminopimelic acid as the diagnostic diamino acid and rhamnose as the major sugar. The major fatty acids were anteiso-C17 : 0, iso-C16 : 0 and C18 : 1ω9c. The predominant menaquinones were MK-10(H4), MK-10(H6), MK-10(H8) and MK-9(H4). The G+C content of the genomic DNA of strain EGI 80425T was 70.2 mol%. Strain EGI 80425T showed highest 16S rRNA gene sequence similarity to Nocardiopsis dassonvillei subsp. dassonvillei DSM 43111T (96.44 %). Phylogenetic analysis showed that strain EGI 80425T clustered with the members of the genus Nocardiopsis. Based on phenotypic, chemotaxonomic and phylogenetic characteristics, strain EGI 80425T represents a novel species of the genus Nocardiopsis, for which the name Nocardiopsis ansamitocini sp. nov. is proposed. The type strain is EGI 80425T ( = CGMCC 9969T = KCTC 39605T).
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Affiliation(s)
- Yong-Guang Zhang
- Key Laboratory of Biogeography and Bioresource in Arid Land, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Ürűmqi 830011, PR China
| | - Qing Liu
- State Key Laboratory of Biocontrol and Guangdong Provincial Key Laboratory of Plant Resources, College of Ecology and Evolution, Sun Yat-Sen University, Guangzhou, 510275, PR China.,Yunnan Institute of Microbiology, Yunnan University, Kunming, 650091, PR China
| | - Hong-Fei Wang
- Key Laboratory of Biogeography and Bioresource in Arid Land, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Ürűmqi 830011, PR China
| | - Dong-Jin Park
- Microbial Resource Center, Korea Research Institute of Bioscience & Biotechnology, Daejeon 305-806, Republic of Korea
| | - Jian-Wei Guo
- Key Laboratory of Biogeography and Bioresource in Arid Land, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Ürűmqi 830011, PR China.,Key Laboratory of Higher Quality and Efficient Cultivation and Security Control of Crops for Yunnan Province, Honghe University, Mengzi 661100, PR China
| | - Chang-Jin Kim
- Microbial Resource Center, Korea Research Institute of Bioscience & Biotechnology, Daejeon 305-806, Republic of Korea
| | - Yuan-Ming Zhang
- Key Laboratory of Biogeography and Bioresource in Arid Land, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Ürűmqi 830011, PR China
| | - Wen-Jun Li
- Key Laboratory of Biogeography and Bioresource in Arid Land, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Ürűmqi 830011, PR China.,Yunnan Institute of Microbiology, Yunnan University, Kunming, 650091, PR China.,State Key Laboratory of Biocontrol and Guangdong Provincial Key Laboratory of Plant Resources, College of Ecology and Evolution, Sun Yat-Sen University, Guangzhou, 510275, PR China
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42
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Li YQ, Li L, Chen W, Duan YQ, Nimaichand S, Guo JW, Gao R, Li WJ. Novosphingobium endophyticum sp. nov. isolated from roots of Glycyrrhiza uralensis. Arch Microbiol 2015; 197:911-8. [DOI: 10.1007/s00203-015-1124-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2015] [Revised: 05/07/2015] [Accepted: 05/19/2015] [Indexed: 10/23/2022]
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Li L, Ma JB, Abdalla Mohamad O, Li SH, Osman G, Li YQ, Guo JW, Hozzein WN, Li WJ. Phytoactinopolyspora endophytica gen. nov., sp. nov., a halotolerant filamentous actinomycete isolated from the roots of Glycyrrhiza uralensis F. Int J Syst Evol Microbiol 2015; 65:2671-2677. [PMID: 25964514 DOI: 10.1099/ijs.0.000322] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
A novel endophytic actinomycete, designated strain EGI 60009T, was isolated from the roots of Glycyrrhiza uralensis F. collected from Xinjiang Province, north-west China. The isolate was able to grow in the presence of 0-9% (w/v) NaCl. Strain EGI 60009T had particular morphological properties: the substrate mycelia fragmented into rod-like elements and aerial mycelia differentiated into short spore chains. ll-2, 6-Diaminopimelic acid was the cell-wall diamino acid and rhamnose, galactose and glucose were the cell-wall sugars. MK-9(H4) was the predominant menaquinone. The major fatty acids of strain EGI 60009T were iso-C15 : 0, anteiso-C15 : 0, anteiso-C17 : 0, iso-C17 : 0, iso-C17 : 1 and I/anteiso-C17 : 0 B. Mycolic acids were absent. The DNA G+C content of strain EGI 60009T was 70.4 mol%. Phylogenetic analysis based on the 16S rRNA gene sequence indicated that strain EGI 60009T belongs to the family Jiangellaceae and formed a distinct clade in the phylogenetic tree. 16S rRNA gene sequence similarities between strain EGI 60009T and other members of the genera Jiangella and Haloactinopolyspora were 96.1-96.4 and 95.7-96.0%, respectively. Based on these results and supported by morphological, physiological and chemotaxonomic data and numerous phenotypic differences, a novel species of a new genus, Phytoactinopolyspora endophytica gen. nov., sp. nov., is proposed. The type strain of Phytoactinopolyspora endophytica is EGI 60009T ( = KCTC 29657T = CPCC204078T).
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Affiliation(s)
- Li Li
- Key Laboratory of Biogeography and Bioresource in Arid Land, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi 830011, PR China
| | - Jin-Biao Ma
- Key Laboratory of Biogeography and Bioresource in Arid Land, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi 830011, PR China
| | - Osama Abdalla Mohamad
- Key Laboratory of Biogeography and Bioresource in Arid Land, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi 830011, PR China.,Institute for post graduate Environmental Studies, Environmental Science Department, Suez Canal University, El-Arish branch, North Sinai, 45511, Egypt
| | - Shan-Hui Li
- Yunnan Institute of Microbiology, Yunnan University, Kunming 650091, PR China
| | - Ghenijan Osman
- Yunnan Institute of Microbiology, Yunnan University, Kunming 650091, PR China
| | - Yan-Qiong Li
- Yunnan Institute of Microbiology, Yunnan University, Kunming 650091, PR China
| | - Jian-Wei Guo
- Key Laboratory of Biogeography and Bioresource in Arid Land, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi 830011, PR China
| | - Wael N Hozzein
- Bioproducts Research Chair (BRC), College of Science, King Saud University, PO Box 2455 Riyadh 11451, Kingdom of Saudi Arabia
| | - Wen-Jun Li
- Key Laboratory of Biogeography and Bioresource in Arid Land, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi 830011, PR China.,State Key Laboratory of Biocontrol, Key Laboratory of Biodiversity Dynamics and Conservation of Guangdong Higher Education Institutes, College of Ecology and Evolution, Sun Yat-Sen University, Guangzhou 510275, PR China.,Yunnan Institute of Microbiology, Yunnan University, Kunming 650091, PR China
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Lu W, Sun LT, Qian C, Guo JW, Fang X, Feng YC, Yang Y, Ma HY, Zhang XZ, Ma BH, Xiong B, Guo SQ, Ruan L, Zhao HW. The development of a room temperature electron cyclotron resonance ion source (Lanzhou electron cyclotron resonance ion source No. 4) with evaporative cooling technology at Institute of Modern Physics. Rev Sci Instrum 2015; 86:043301. [PMID: 25933849 DOI: 10.1063/1.4916658] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
LECR4 (Lanzhou electron cyclotron resonance ion source No. 4) has been successfully constructed at IMP and has also been connected with the Low Energy Beam Transport (LEBT) and Radio Frequency Quadrupole (RFQ) systems. These source magnet coils are cooled through evaporative cooling technology, which is the first attempt with an ECR ion source in the world. The maximum mirror field is 2.5 T (with iron plug) and the effective plasma chamber volume is 1.2 l. It was designed to be operated at 18 GHz and aimed to produce intense multiple charge state heavy ion beams for the linear injector project SSC-Linac at IMP. In February 2014, the first analyzed beam at 18 GHz was extracted. During about three months' commissioning, some outstanding results have been achieved, such as 1.97 emA of O(6+), 1.7 emA of Ar(8+), 1.07 emA of Ar(9+), and 118 euA of Bi(28+). The source has also successfully delivered O(5+) and Ar(8+) ion beams for RFQ commissioning in April 2014. This paper will give a brief overview of the design of LECR4. Then, the latest results of this source at 18 GHz will be presented.
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Affiliation(s)
- W Lu
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 73000, China
| | - L T Sun
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 73000, China
| | - C Qian
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 73000, China
| | - J W Guo
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 73000, China
| | - X Fang
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 73000, China
| | - Y C Feng
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 73000, China
| | - Y Yang
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 73000, China
| | - H Y Ma
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 73000, China
| | - X Z Zhang
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 73000, China
| | - B H Ma
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 73000, China
| | - B Xiong
- Institute of Electrical Engineering, CAS, Beijing 100190, China
| | - S Q Guo
- Institute of Electrical Engineering, CAS, Beijing 100190, China
| | - L Ruan
- Institute of Electrical Engineering, CAS, Beijing 100190, China
| | - H W Zhao
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 73000, China
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45
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Wang HF, Zhang YG, Chen JY, Guo JW, Li L, Hozzein WN, Zhang YM, Wadaan MAM, Li WJ. Frigoribacterium endophyticum sp. nov., an endophytic actinobacterium isolated from the root of Anabasis elatior (C. A. Mey.) Schischk. Int J Syst Evol Microbiol 2015; 65:1207-1212. [PMID: 25609679 DOI: 10.1099/ijs.0.000081] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
A novel endophytic actinobacterium, designated EGI 6500707(T), was isolated from the surface-sterilized root of a halophyte Anabasis elatior (C. A. Mey.) Schischk collected from Urumqi, Xinjiang province, north-west China, and characterized using a polyphasic approach. Cells were Gram-stain-positive, non-motile, short rods and produced white colonies. Growth occurred at 10-45 °C (optimum 25-30 °C), at pH 5-10 (optimum pH 8) and in presence of 0-4% (w/v) NaCl (optimum 0-3%). The predominant menaquinone was MK-9. The diagnostic phospholipids were diphosphatidylglycerol and phosphatidylglycerol. The major fatty acids were anteiso-C(15 : 0), anteiso-C(17 : 0) and iso-C(16 : 0). The DNA G+C content of strain EGI 6500707(T) was 69.1 mol%. Phylogenetic analyses based on 16S rRNA gene sequences showed that strain EGI 6500707(T) should be placed in the genus Frigoribacterium (family Microbacteriaceae , phylum Actinobacteria ), and that the novel strain exhibited the highest 16S rRNA gene sequence similarity to Frigoribacterium faeni JCM 11265(T) (99.1%) and Frigoribacterium mesophilum MSL-08(T) (96.5%). DNA-DNA relatedness between strain EGI 6500707(T) and F. faeni JCM 11265(T) was 47.2%. On the basis of phenotypic and chemotaxonomic characteristics, phylogenetic analysis and DNA-DNA relatedness data, strain EGI 6500707(T) represents a novel species of the genus Frigoribacterium , for which the name Frigoribacterium endophyticum sp. nov. is proposed. The type strain is EGI 6500707(T) ( = JCM 30093(T) = KCTC 29493(T)).
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Affiliation(s)
- Hong-Fei Wang
- Key Laboratory of Biogeography and Bioresource in Arid Land, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Ürűmqi, 830011, PR China
- State Key Laboratory of Biocontrol, Key Laboratory of Biodiversity Dynamics and Conservation of Guangdong Higher Education Institutes, College of Ecology and Evolution, Sun Yat-Sen University, Guangzhou, 510275, PR China
- University of Chinese Academy of Sciences, Beijing, 100049, PR China
| | - Yong-Guang Zhang
- Key Laboratory of Microbial Diversity in Southwest China, Ministry of Education, Yunnan Institute of Microbiology, Yunnan University, Kunming, 650091, PR China
- Key Laboratory of Biogeography and Bioresource in Arid Land, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Ürűmqi, 830011, PR China
| | - Ji-Yue Chen
- Key Laboratory of Biogeography and Bioresource in Arid Land, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Ürűmqi, 830011, PR China
| | - Jian-Wei Guo
- Key Laboratory of Biogeography and Bioresource in Arid Land, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Ürűmqi, 830011, PR China
| | - Li Li
- Key Laboratory of Biogeography and Bioresource in Arid Land, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Ürűmqi, 830011, PR China
| | - Wael N Hozzein
- Bioproducts Research Chair (BRC), College of Science, King Saud University, P.O. Box 2455 Riyadh, 11451, Kingdom of Saudi Arabia
| | - Yuan-Ming Zhang
- Key Laboratory of Biogeography and Bioresource in Arid Land, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Ürűmqi, 830011, PR China
| | - Mohammed A M Wadaan
- Bioproducts Research Chair (BRC), College of Science, King Saud University, P.O. Box 2455 Riyadh, 11451, Kingdom of Saudi Arabia
| | - Wen-Jun Li
- Key Laboratory of Microbial Diversity in Southwest China, Ministry of Education, Yunnan Institute of Microbiology, Yunnan University, Kunming, 650091, PR China
- State Key Laboratory of Biocontrol, Key Laboratory of Biodiversity Dynamics and Conservation of Guangdong Higher Education Institutes, College of Ecology and Evolution, Sun Yat-Sen University, Guangzhou, 510275, PR China
- Key Laboratory of Biogeography and Bioresource in Arid Land, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Ürűmqi, 830011, PR China
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Wang HF, Zhang YG, Li L, Liu WH, Hozzein WN, Chen JY, Guo JW, Zhang YM, Li WJ. Okibacterium endophyticum sp. nov., a novel endophytic actinobacterium isolated from roots of Salsola affinis C. A. Mey. Antonie Van Leeuwenhoek 2015; 107:835-43. [PMID: 25566956 DOI: 10.1007/s10482-014-0376-0] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/03/2014] [Accepted: 12/30/2014] [Indexed: 11/26/2022]
Abstract
A white bacterial strain, designated EGI 650022(T), was isolated from the roots of Salsola affinis C. A. Mey, collected from Urumqi City, Xinjiang, north-western China. The strain was found to be aerobic, Gram-stain positive, oxidase-positive and catalase-positive. Cells were non-motile and irregular rods. Growth occurred at NaCl concentrations between 0 and 7 % (w/v), temperatures between 5 and 45 °C, and pH 6.0-9.0. Phylogenetic analysis based on 16S rRNA gene sequence indicated that strain EGI 650022(T) belongs to a clade with the genera Okibacterium and Plantibacter in the family Microbacteriaceae. The novel strain EGI 650022(T) showed highest levels of 16S rRNA gene sequence similarity with members of the genera Okibacterium and Plantibacter (97.2-98.0 %). The cell-wall peptidoglycan contained glutamate, homoserine, glycine, alanine and lysine. The predominant menaquinones (MKs) were MK-11, MK-12 and MK-12 (H4). The polar lipid pattern comprised phosphatidylglycerol, diphosphatidylglycerol, two unknown glycolipids and two unknown phospholipids. The major fatty acids were anteiso-C15:0 and anteiso-C17:0. The DNA G+C content was 66.0 mol%. The DNA-DNA relatedness values of strain EGI 650022(T) with Okibacterium fritillariae DSM 12584(T), Plantibacter flavus DSM 14012(T) and Plantibacter auratus DSM 19586(T) were 39.7, 19.7 and 22.0 %. Based on phylogenetic, phenotypic, chemotaxonomic and DNA-DNA hybridization data, strain EGI 650022(T) is considered to represent a novel species of the genus Okibacterium, for which the name Okibacterium endophyticum sp. nov. is proposed; the type strain is EGI 650022(T) (=JCM 30086(T) = KCTC 29492(T)).
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Affiliation(s)
- Hong-Fei Wang
- Key Laboratory of Biogeography and Bioresource in Arid Land, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Ürűmqi, 830011, People's Republic of China
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Abstract
The surface of PC/FR compositions presents a continuous and protective carbon layer with several bubbles and folds.
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Affiliation(s)
- Shu-Qin Fu
- School of Chemical Engineering & Light Industry
- Guangdong University of Technology
- Guangzhou 510006
- P. R. China
| | - Jian-Wei Guo
- School of Chemical Engineering & Light Industry
- Guangdong University of Technology
- Guangzhou 510006
- P. R. China
| | - Dong-Yu Zhu
- School of Chemical Engineering & Light Industry
- Guangdong University of Technology
- Guangzhou 510006
- P. R. China
| | - Zhe Yang
- School of Chemical Engineering & Light Industry
- Guangdong University of Technology
- Guangzhou 510006
- P. R. China
| | - Chu-Fen Yang
- School of Chemical Engineering & Light Industry
- Guangdong University of Technology
- Guangzhou 510006
- P. R. China
| | - Jia-Xing Xian
- School of Chemical Engineering & Light Industry
- Guangdong University of Technology
- Guangzhou 510006
- P. R. China
| | - Xiong Li
- School of Chemical Engineering & Light Industry
- Guangdong University of Technology
- Guangzhou 510006
- P. R. China
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Yang J, Hong L, Liu YH, Guo JW, Lin LF. Treatment of oilfield fracturing wastewater by a sequential combination of flocculation, Fenton oxidation and SBR process. Environ Technol 2014; 35:2878-2884. [PMID: 25176493 DOI: 10.1080/09593330.2014.924570] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
In this study, a combined process was developed that included flocculation, Fenton oxidation and sequencing batch reactor (SBR) to treat oilfield fracturing wastewater (FW). Flocculation and Fenton oxidation were applied to reduce chemical oxygen demand (COD) organic load and to enhance biodegradability, respectively. For flocculation, the optimum conditions were: polymeric aluminium chloride dosage, 40 mg/L; polyacrylamide dosage, 4 mg/L; dilution ratio, 1:2 and stirring time, 30 min. For Fenton oxidation, a total reaction time of 60 min, a H₂O₂dosage of 2 m mol/L, with a [H₂O₂]/[FeSO₄] ratio of 2 were selected to achieve optimum oxidation. Under these optimum flocculation and Fenton oxidation conditions, the COD removal efficiency was found to be 76.6%. Following pretreatment with flocculation and Fenton oxidation, the FW was further remediated using a SBR. Results show that COD was reduced to 92 mg/L, and the overall water quality of the final effluent could meet the class I national wastewater discharge standard of petrochemical industry of China.
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Affiliation(s)
- Jian Yang
- a Key Laboratory of Crops with High Quality and Efficient Cultivation and Security Control , Yunnan Higher Education Institutions, Honghe University , Mengzi 661199 , Yunnan , People's Republic of China
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49
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Abstract
The SBP-box gene family is specific to plants and encodes a class of zinc finger-containing transcription factors with a broad range of functions. Although SBP-box genes have been identified in numerous plants, including green algae, moss, silver birch, snapdragon, Arabidopsis, rice, and maize, there is little information concerning SBP-box genes, or the corresponding miR156/157, function in melon. Using the highly conserved sequence of the Arabidopsis thaliana SBP-box domain protein as a probe of information sequence, the genome-wide protein database of melon was explored to obtain 13 SBP-box protein sequences, which were further divided into 4 groups, based on phylogenetic analysis. A further analysis centered on the melon SBP-box genetic family's phylogenetic evolution, sequence similarities, gene structure, and miR156 target sequence was also conducted. Analysis of all the expression patterns of melon SBP-box family genes showed that the SBP-box genes were detected in 7 kinds of tissue, and fruit had the highest expression level. CmSBP11 tends to present its specific expression in melon fruit and root. CmSBP09 expression was the highest in flower. Overall, the molecular evolution and expression pattern of the melon SBP-box gene family, revealed by these results, suggest its function differentiation that followed gene duplication.
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Affiliation(s)
- Y Ma
- Inner Mongolia Key Laboratory of Herbage & Endemic Crop Biotechnology, College of Life Sciences, Inner Mongolia University, Hohhot, China
| | - J W Guo
- Inner Mongolia Key Laboratory of Herbage & Endemic Crop Biotechnology, College of Life Sciences, Inner Mongolia University, Hohhot, China
| | - R Bade
- Inner Mongolia Key Laboratory of Herbage & Endemic Crop Biotechnology, College of Life Sciences, Inner Mongolia University, Hohhot, China
| | - Z H Men
- Department of Biological Science and Technology, Baotou Teacher's College, Baotou, China
| | - A Hasi
- Inner Mongolia Key Laboratory of Herbage & Endemic Crop Biotechnology, College of Life Sciences, Inner Mongolia University, Hohhot, China
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Feng LJ, Guo JW, Zhong X, Sun ZY. Fluorescent Microporous Polymeric Microsphere: Porosity, Adsorption Performance, and TNT Sensing. Journal of Macromolecular Science, Part A 2014. [DOI: 10.1080/10601325.2014.936237] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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