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Lin QB, Dong J, Ke KY, Lin XQ, Kong JF, Xiong KG, Chen LF. [Validation of the diagnostic value of GALAD model in hepatocellular carcinoma patients]. Zhonghua Gan Zang Bing Za Zhi 2018; 26:621-623. [PMID: 30317796 DOI: 10.3760/cma.j.issn.1007-3418.2018.08.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Affiliation(s)
- Q B Lin
- Department of Hepatology, Mengchao Hepatobiliary Hospital of Fujian Medical University(Infectious Disease Hospital Affiliated to Fujian Medical University), Fuzhou 350025, China
| | - J Dong
- Liver Center, First Affiliated Hospital, Fujian Medical University, Fuzhou 350005, China
| | - K Y Ke
- Department of Hepatology, Mengchao Hepatobiliary Hospital of Fujian Medical University(Infectious Disease Hospital Affiliated to Fujian Medical University), Fuzhou 350025, China
| | - X Q Lin
- Department of Hepatology, Mengchao Hepatobiliary Hospital of Fujian Medical University(Infectious Disease Hospital Affiliated to Fujian Medical University), Fuzhou 350025, China
| | - J F Kong
- Department of Hepatology, Mengchao Hepatobiliary Hospital of Fujian Medical University(Infectious Disease Hospital Affiliated to Fujian Medical University), Fuzhou 350025, China
| | - K G Xiong
- Department of Hepatology, Mengchao Hepatobiliary Hospital of Fujian Medical University(Infectious Disease Hospital Affiliated to Fujian Medical University), Fuzhou 350025, China
| | - L F Chen
- Department of Hepatology, Mengchao Hepatobiliary Hospital of Fujian Medical University(Infectious Disease Hospital Affiliated to Fujian Medical University), Fuzhou 350025, China
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Zhang Z, Zhang F, Cheng ZJ, Liu LL, Lin QB, Wu FQ, Zhang H, Wang JL, Wang J, Guo XP, Zhang X, Lei CL, Zhao ZC, Zhu SS, Wan JM. Functional characterization of rice CW-domain containing zinc finger proteins involved in histone recognition. Plant Sci 2017; 263:168-176. [PMID: 28818372 DOI: 10.1016/j.plantsci.2017.06.013] [Citation(s) in RCA: 5] [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] [Received: 03/25/2017] [Revised: 06/19/2017] [Accepted: 06/27/2017] [Indexed: 06/07/2023]
Abstract
Histone recognition is important for understanding the mechanisms of histone modification, which play a pivotal role in transcriptional regulation during plant development. Here, we identified three cysteine-tryptophan (CW)-domain containing zinc finger (ZF) proteins involved in histone recognition, namely OsCW-ZF3, OsCW-ZF5 and OsCW-ZF7. Protein sequence analysis showed that they have two unknown motifs in addition to the CW domain. All three OsCW-ZFs were expressed in aerial tissues, with relatively high levels in developing panicles. Subcellular localization revealed that the OsCW-ZFs target the cell nucleus and CW domains are not necessary for their nuclear localization. In contrast to OsCW-ZF3 and OsCW-ZF5 where the CW domains bind histone H3 lysine 4 with different methylated forms (H3K4me), the CW domain from OsCW-ZF7 recognizes only trimethylated histone H3 lysine 4 (H3K4me3). Analysis of mutant suggested that three conserved tryptophan residues in the CW domain are essential for binding to H3K4me. Further study found that OsCW-ZF7 interacts with TAFII20, a transcription initiation factor TFIID 20kDa subunit. Knockout of OsCW-ZF7 caused defective development of awns. This study provides new insights into our understanding of the CW domain and lays a foundation for further investigation of its roles in rice.
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Affiliation(s)
- Zhe Zhang
- National Key Facility for Crop Gene Resources and Genetic Improvement, Institute of Crop Science, Chinese Academy of Agricultural Sciences, Beijing 100081, PR China
| | - Feng Zhang
- National Key Facility for Crop Gene Resources and Genetic Improvement, Institute of Crop Science, Chinese Academy of Agricultural Sciences, Beijing 100081, PR China
| | - Zhi-Jun Cheng
- National Key Facility for Crop Gene Resources and Genetic Improvement, Institute of Crop Science, Chinese Academy of Agricultural Sciences, Beijing 100081, PR China
| | - Ling-Long Liu
- National Key Laboratory for Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing 210095, PR China
| | - Qi-Bing Lin
- National Key Facility for Crop Gene Resources and Genetic Improvement, Institute of Crop Science, Chinese Academy of Agricultural Sciences, Beijing 100081, PR China
| | - Fu-Qing Wu
- National Key Facility for Crop Gene Resources and Genetic Improvement, Institute of Crop Science, Chinese Academy of Agricultural Sciences, Beijing 100081, PR China
| | - Huan Zhang
- National Key Laboratory for Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing 210095, PR China
| | - Jiu-Lin Wang
- National Key Facility for Crop Gene Resources and Genetic Improvement, Institute of Crop Science, Chinese Academy of Agricultural Sciences, Beijing 100081, PR China
| | - Jie Wang
- National Key Facility for Crop Gene Resources and Genetic Improvement, Institute of Crop Science, Chinese Academy of Agricultural Sciences, Beijing 100081, PR China
| | - Xiu-Ping Guo
- National Key Facility for Crop Gene Resources and Genetic Improvement, Institute of Crop Science, Chinese Academy of Agricultural Sciences, Beijing 100081, PR China
| | - Xin Zhang
- National Key Facility for Crop Gene Resources and Genetic Improvement, Institute of Crop Science, Chinese Academy of Agricultural Sciences, Beijing 100081, PR China
| | - Cai-Lin Lei
- National Key Facility for Crop Gene Resources and Genetic Improvement, Institute of Crop Science, Chinese Academy of Agricultural Sciences, Beijing 100081, PR China
| | - Zhi-Chao Zhao
- National Key Facility for Crop Gene Resources and Genetic Improvement, Institute of Crop Science, Chinese Academy of Agricultural Sciences, Beijing 100081, PR China
| | - Shan-Shan Zhu
- National Key Facility for Crop Gene Resources and Genetic Improvement, Institute of Crop Science, Chinese Academy of Agricultural Sciences, Beijing 100081, PR China
| | - Jian-Min Wan
- National Key Facility for Crop Gene Resources and Genetic Improvement, Institute of Crop Science, Chinese Academy of Agricultural Sciences, Beijing 100081, PR China; National Key Laboratory for Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing 210095, PR China.
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Zhang Z, Cheng ZJ, Gan L, Zhang H, Wu FQ, Lin QB, Wang JL, Wang J, Guo XP, Zhang X, Zhao ZC, Lei CL, Zhu SS, Wang CM, Wan JM. OsHSD1, a hydroxysteroid dehydrogenase, is involved in cuticle formation and lipid homeostasis in rice. Plant Sci 2016; 249:35-45. [PMID: 27297988 DOI: 10.1016/j.plantsci.2016.05.005] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/02/2016] [Revised: 05/06/2016] [Accepted: 05/08/2016] [Indexed: 05/11/2023]
Abstract
Cuticular wax, a hydrophobic layer on the surface of all aerial plant organs, has essential roles in plant growth and survival under various environments. Here we report a wax-deficient rice mutant oshsd1 with reduced epicuticular wax crystals and thicker cuticle membrane. Quantification of the wax components and fatty acids showed elevated levels of very-long-chain fatty acids (VLCFAs) and accumulation of soluble fatty acids in the leaves of the oshsd1 mutant. We determined the causative gene OsHSD1, a member of the short-chain dehydrogenase reductase family, through map-based cloning. It was ubiquitously expressed and responded to cold stress and exogenous treatments with NaCl or brassinosteroid analogs. Transient expression of OsHSD1-tagged green fluorescent protein revealed that OsHSD1 localized to both oil bodies and endoplasmic reticulum (ER). Dehydrogenase activity assays demonstrated that OsHSD1 was an NAD(+)/NADP(+)-dependent sterol dehydrogenase. Furthermore, OsHSD1 mutation resulted in faster protein degradation, but had no effect on the dehydrogenase activity. Together, our data indicated that OsHSD1 plays a specialized role in cuticle formation and lipid homeostasis, probably by mediating sterol signaling. This work provides new insights into oil-body associated proteins involved in wax and lipid metabolism.
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Affiliation(s)
- Zhe Zhang
- National Key Facility for Crop Gene Resources and Genetic Improvement, Institute of Crop Science, Chinese Academy of Agricultural Sciences, Beijing 100081, PR China
| | - Zhi-Jun Cheng
- National Key Facility for Crop Gene Resources and Genetic Improvement, Institute of Crop Science, Chinese Academy of Agricultural Sciences, Beijing 100081, PR China
| | - Lu Gan
- National Key Facility for Crop Gene Resources and Genetic Improvement, Institute of Crop Science, Chinese Academy of Agricultural Sciences, Beijing 100081, PR China
| | - Huan Zhang
- National Key Laboratory for Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing 210095, PR China
| | - Fu-Qing Wu
- National Key Facility for Crop Gene Resources and Genetic Improvement, Institute of Crop Science, Chinese Academy of Agricultural Sciences, Beijing 100081, PR China
| | - Qi-Bing Lin
- National Key Facility for Crop Gene Resources and Genetic Improvement, Institute of Crop Science, Chinese Academy of Agricultural Sciences, Beijing 100081, PR China
| | - Jiu-Lin Wang
- National Key Facility for Crop Gene Resources and Genetic Improvement, Institute of Crop Science, Chinese Academy of Agricultural Sciences, Beijing 100081, PR China
| | - Jie Wang
- National Key Facility for Crop Gene Resources and Genetic Improvement, Institute of Crop Science, Chinese Academy of Agricultural Sciences, Beijing 100081, PR China
| | - Xiu-Ping Guo
- National Key Facility for Crop Gene Resources and Genetic Improvement, Institute of Crop Science, Chinese Academy of Agricultural Sciences, Beijing 100081, PR China
| | - Xin Zhang
- National Key Facility for Crop Gene Resources and Genetic Improvement, Institute of Crop Science, Chinese Academy of Agricultural Sciences, Beijing 100081, PR China
| | - Zhi-Chao Zhao
- National Key Facility for Crop Gene Resources and Genetic Improvement, Institute of Crop Science, Chinese Academy of Agricultural Sciences, Beijing 100081, PR China
| | - Cai-Lin Lei
- National Key Facility for Crop Gene Resources and Genetic Improvement, Institute of Crop Science, Chinese Academy of Agricultural Sciences, Beijing 100081, PR China
| | - Shan-Shan Zhu
- National Key Facility for Crop Gene Resources and Genetic Improvement, Institute of Crop Science, Chinese Academy of Agricultural Sciences, Beijing 100081, PR China
| | - Chun-Ming Wang
- National Key Laboratory for Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing 210095, PR China
| | - Jian-Min Wan
- National Key Facility for Crop Gene Resources and Genetic Improvement, Institute of Crop Science, Chinese Academy of Agricultural Sciences, Beijing 100081, PR China; National Key Laboratory for Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing 210095, PR China.
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Liu K, Liu LL, Ren YL, Wang ZQ, Zhou KN, Liu X, Wang D, Zheng M, Cheng ZJ, Lin QB, Wang JL, Wu FQ, Zhang X, Guo XP, Wang CM, Zhai HQ, Jiang L, Wan JM. Dwarf and tiller-enhancing 1 regulates growth and development by influencing boron uptake in boron limited conditions in rice. Plant Sci 2015; 236:18-28. [PMID: 26025517 DOI: 10.1016/j.plantsci.2015.03.015] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/18/2014] [Revised: 03/22/2015] [Accepted: 03/23/2015] [Indexed: 05/25/2023]
Abstract
Boron (B) is essential for plant growth, and B deficiency causes severe losses in crop yield. Here we isolated and characterized a rice (Oryza sativa L.) mutant named dwarf and tiller-enhancing 1 (dte1), which exhibits defects under low-B conditions, including retarded growth, increased number of tillers and impaired pollen fertility. Map-based cloning revealed that dte1 encodes a NOD26-LIKE INTRINSIC PROTEIN orthologous to known B channel proteins AtNIP5;1 in Arabidopsis and TASSEL-LESS1 in maize. Its identity was verified by transgenic complementation and RNA-interference. Subcellular localization showed DTE1 is mainly localized in the plasma membrane. The accumulation of DTE1 transcripts both in roots and shoots significantly increased within 3h of the onset of B starvation, but decreased within 1h of B replenishment. GUS staining indicated that DTE1s are expressed abundantly in exodermal cells in roots, as well as in nodal region of adult leaves. Although the dte1 mutation apparently reduces the total B content in plants, it does not affect in vivo B concentrations under B-deficient conditions. These data provide evidence that DTE1 is critical for vegetative growth and reproductive development in rice grown under B-deficient conditions.
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Affiliation(s)
- Kai Liu
- National Key Laboratory for Crop Genetics and Germplasm Enhancement, Jiangsu Plant Gene Engineering Research Center, Nanjing Agricultural University, Nanjing 210095, PR China
| | - Ling-Long Liu
- National Key Laboratory for Crop Genetics and Germplasm Enhancement, Jiangsu Plant Gene Engineering Research Center, Nanjing Agricultural University, Nanjing 210095, PR China
| | - Yu-Long Ren
- Institute of Crop Science, Chinese Academy of Agricultural Sciences, Beijing 100081, PR China
| | - Zhi-Quan Wang
- National Key Laboratory for Crop Genetics and Germplasm Enhancement, Jiangsu Plant Gene Engineering Research Center, Nanjing Agricultural University, Nanjing 210095, PR China
| | - Kun-Neng Zhou
- National Key Laboratory for Crop Genetics and Germplasm Enhancement, Jiangsu Plant Gene Engineering Research Center, Nanjing Agricultural University, Nanjing 210095, PR China
| | - Xi Liu
- National Key Laboratory for Crop Genetics and Germplasm Enhancement, Jiangsu Plant Gene Engineering Research Center, Nanjing Agricultural University, Nanjing 210095, PR China
| | - Dan Wang
- Institute of Crop Science, Chinese Academy of Agricultural Sciences, Beijing 100081, PR China
| | - Ming Zheng
- National Key Laboratory for Crop Genetics and Germplasm Enhancement, Jiangsu Plant Gene Engineering Research Center, Nanjing Agricultural University, Nanjing 210095, PR China
| | - Zhi-Jun Cheng
- Institute of Crop Science, Chinese Academy of Agricultural Sciences, Beijing 100081, PR China
| | - Qi-Bing Lin
- Institute of Crop Science, Chinese Academy of Agricultural Sciences, Beijing 100081, PR China
| | - Jiu-Lin Wang
- Institute of Crop Science, Chinese Academy of Agricultural Sciences, Beijing 100081, PR China
| | - Fu-Qing Wu
- Institute of Crop Science, Chinese Academy of Agricultural Sciences, Beijing 100081, PR China
| | - Xin Zhang
- Institute of Crop Science, Chinese Academy of Agricultural Sciences, Beijing 100081, PR China
| | - Xiu-Ping Guo
- Institute of Crop Science, Chinese Academy of Agricultural Sciences, Beijing 100081, PR China
| | - Chun-Ming Wang
- National Key Laboratory for Crop Genetics and Germplasm Enhancement, Jiangsu Plant Gene Engineering Research Center, Nanjing Agricultural University, Nanjing 210095, PR China
| | - Hu-Qu Zhai
- National Key Laboratory for Crop Genetics and Germplasm Enhancement, Jiangsu Plant Gene Engineering Research Center, Nanjing Agricultural University, Nanjing 210095, PR China
| | - Ling Jiang
- National Key Laboratory for Crop Genetics and Germplasm Enhancement, Jiangsu Plant Gene Engineering Research Center, Nanjing Agricultural University, Nanjing 210095, PR China
| | - Jian-Min Wan
- National Key Laboratory for Crop Genetics and Germplasm Enhancement, Jiangsu Plant Gene Engineering Research Center, Nanjing Agricultural University, Nanjing 210095, PR China; Institute of Crop Science, Chinese Academy of Agricultural Sciences, Beijing 100081, PR China.
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Song CF, Lin QB, Liang RH, Wang YZ. Expressions of ECE-CYC2 clade genes relating to abortion of both dorsal and ventral stamens in Opithandra (Gesneriaceae). BMC Evol Biol 2009; 9:244. [PMID: 19811633 PMCID: PMC2763874 DOI: 10.1186/1471-2148-9-244] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2009] [Accepted: 10/07/2009] [Indexed: 02/02/2023] Open
Abstract
BACKGROUND ECE-CYC2 clade genes known in patterning floral dorsoventral asymmetry (zygomorphy) in Antirrhinum majus are conserved in the dorsal identity function including arresting the dorsal stamen. However, it remains uncertain whether the same mechanism underlies abortion of the ventral stamens, an important morphological trait related to evolution and diversification of zygomorphy in Lamiales sensu lato, a major clade of predominantly zygomorphically flowered angiosperms. Opithandra (Gesneriaceae) is of particular interests in addressing this question as it is in the base of Lamiales s.l., an early representative of this type zygomorphy. RESULTS We investigated the expression patterns of four ECE-CYC2 clade genes and two putative target cyclinD3 genes in Opithandra using RNA in situ hybridization and RT-PCR. OpdCYC gene expressions were correlated with abortion of both dorsal and ventral stamens in Opithandra, strengthened by the negatively correlated expression of their putative target OpdcyclinD3 genes. The complement of OpdcyclinD3 to OpdCYC expressions further indicated that OpdCYC expressions were related to the dorsal and ventral stamen abortion through negative effects on OpdcyclinD3 genes. CONCLUSION These results suggest that ECE-CYC2 clade TCP genes are not only functionally conserved in the dorsal stamen repression, but also involved in arresting ventral stamens, a genetic mechanism underlying the establishment of zygomorphy with abortion of both the dorsal and ventral stamens evolved in angiosperms, especially within Lamiales s.l.
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Affiliation(s)
- Chun-Feng Song
- State Key Laboratory of Systematic and Evolutionary Botany, Institute of Botany, Chinese Academy of Sciences, 20 Nanxincun, Xiangshan, Beijing 100093, PR China.
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Abstract
The government of Yongan in Fujian province has developed a multisectoral primary health care program in the rural community of Dahu with the aim of reaching "Health for All" by 1993. In keeping with the spirit of the Alma Ata declaration and the tradition of local self-reliance in China, the program has involved the entire community and is financed almost exclusively at the local level. Community leaders were trained in the importance of primary health care so that they could serve as role models. The project includes school health education, domestic hygiene education, reconstruction of homes to separate the kitchen, toilet and animals pens, road construction to eliminate dust, environmental sanitation, occupational health, and the upgrading of health care facilities. A number of local ordinances regarding construction, zoning and smoking have also been instituted. The results of the project's first year of implementation in two villages indicate that construction of the new road is near completion, and access to clean water is almost universal. Gains are also reported in the percentage of the population receiving physical examinations, the number of health stations that now meet state standards, and the number of homes that are constructed according to the new guidelines.
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Affiliation(s)
- H L Yang
- Fujian Provincial Health Education Institute, Fouzhou, China
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Lin QB, Zhang FG. Coumarin 120 laser pulses close to the Fourier transform limit from a simplified resonant cavity. Appl Opt 1987; 26:2572-2574. [PMID: 20489922 DOI: 10.1364/ao.26.002572] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
Using a simplified resonant cavity consisted of an optical parallel glass plate and a diffraction grating at near grazing incidence and the appropriate laser parameters, coumarin 120 laser pulses close to the Fourier transform limit have been obtained. These laser pulses have a spectral linewidth of 600 +/- 40 MHz and a pulse width of 1.5 +/- 0.2 ns. The laser wavelength tuning range is from 4280 to 4600 A.
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