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Xiang H, Wang S, Liang X, Wang X, Xie H, Wang D, Gai Z, Wang N, Xiang P, Han D, Shan D, Li Y, Li W. Foliar spraying of exogenous uniconazole (S3307) at the flowering stage as an effective method to resist low-temperature stress on mung bean [Vigna radiata (L.) Wilczek]. Sci Rep 2023; 13:22331. [PMID: 38102232 PMCID: PMC10724285 DOI: 10.1038/s41598-023-49652-7] [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: 07/29/2023] [Accepted: 12/11/2023] [Indexed: 12/17/2023] Open
Abstract
Low temperature is one of the major constraints on agricultural productivity worldwide and is likely to further increase. Several adaptations and mitigation strategies are required to cope with low-temperature stress. Uniconazole (S3307) could play a significant role in the alleviation of abiotic stress in plants. In this study, the effects of S3307 on the reactive oxygen species (ROS) and antioxidant metabolism were studied in the leaves of mung bean [Vigna radiata (L.) Wilczek]. The experimental results showed that the low-temperature induced accumulation of superoxide anion (O2-) production rate, and malonaldehyde (MDA) contents. Increased proline content and enzymatic antioxidants, including superoxide dismutase (SOD), catalase (CAT), and peroxidase (POD), were found to alleviate oxidative damage under low temperatures. While, S3307 could reduce O2- production rate and MDA contents and increase the activities of SOD, POD, and CAT, slowed the decrease in ascorbic acid (AsA), dehydroascorbic acid (DHA), glutathione (GSH), and oxidized glutathione (GSSG), and promoted increase in soluble sugars (SS), soluble proteins (SP), and proline (Pro) content under low-temperature. At the same time, low temperature leads to lower 100 grain weight and number of grains per plant, which eventually causes yield reduction decreased. Foliar spraying of S3307 could alleviate the yield loss caused by low temperature, and the increase of S3307 treatment was 5.1%-12.5% and 6.3%-32.9% for the two varieties, respectively, compared with CK. In summary, exogenous S3307 pretreatment enhances plant tolerance to low-temperature by improving the antioxidant enzyme activities, increased non-enzymatic antioxidants content, and decreased O2- production rate and MDA contents and inducing alterations in endogenous S3307, and reduce the decrease in mung bean yield.
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Affiliation(s)
- Hongtao Xiang
- Suihua Branch, Heilongjiang Academy of Agricultural Machinery Sciences, Suihua, 152054, Heilongjiang, China
- Heilongjiang Academy of Agricultural Sciences, Harbin, 150086, Heilongjiang, China
| | - Shiya Wang
- College of Agriculture, Heilongjiang Bayi Agriculture University, Daqing, 163319, Heilongjiang, China
| | - Xiaoyan Liang
- College of Agriculture, Heilongjiang Bayi Agriculture University, Daqing, 163319, Heilongjiang, China
| | - Xueyang Wang
- Heilongjiang Academy of Agricultural Sciences, Harbin, 150086, Heilongjiang, China
| | - Hongchang Xie
- Suihua Branch, Heilongjiang Academy of Agricultural Machinery Sciences, Suihua, 152054, Heilongjiang, China
- Heilongjiang Academy of Agricultural Sciences, Harbin, 150086, Heilongjiang, China
| | - Deming Wang
- Suihua Branch, Heilongjiang Academy of Agricultural Machinery Sciences, Suihua, 152054, Heilongjiang, China
- Heilongjiang Academy of Agricultural Sciences, Harbin, 150086, Heilongjiang, China
| | - Zhijia Gai
- Heilongjiang Academy of Agricultural Sciences, Harbin, 150086, Heilongjiang, China
| | - Nannan Wang
- Heilongjiang Academy of Agricultural Sciences, Harbin, 150086, Heilongjiang, China
| | - Peng Xiang
- Heilongjiang Academy of Agricultural Sciences, Harbin, 150086, Heilongjiang, China
| | - Dongwei Han
- Heilongjiang Academy of Agricultural Sciences, Harbin, 150086, Heilongjiang, China
| | - Dapeng Shan
- Heilongjiang Academy of Agricultural Sciences, Harbin, 150086, Heilongjiang, China
| | - Yichu Li
- Heilongjiang Academy of Agricultural Sciences, Harbin, 150086, Heilongjiang, China
| | - Wan Li
- Heilongjiang Academy of Agricultural Sciences, Harbin, 150086, Heilongjiang, China.
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Stukel M, Hariasz L, Di Stefano PCF, Rasco BC, Rykaczewski KP, Brewer NT, Stracener DW, Liu Y, Gai Z, Rouleau C, Carter J, Kostensalo J, Suhonen J, Davis H, Lukosi ED, Goetz KC, Grzywacz RK, Mancuso M, Petricca F, Fijałkowska A, Wolińska-Cichocka M, Ninkovic J, Lechner P, Ickert RB, Morgan LE, Renne PR, Yavin I. Rare ^{40}K Decay with Implications for Fundamental Physics and Geochronology. Phys Rev Lett 2023; 131:052503. [PMID: 37595241 DOI: 10.1103/physrevlett.131.052503] [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: 11/22/2022] [Revised: 05/09/2023] [Accepted: 05/19/2023] [Indexed: 08/20/2023]
Abstract
Potassium-40 is a widespread, naturally occurring isotope whose radioactivity impacts subatomic rare-event searches, nuclear structure theory, and estimated geological ages. A predicted electron-capture decay directly to the ground state of argon-40 has never been observed. The KDK (potassium decay) collaboration reports strong evidence of this rare decay mode. A blinded analysis reveals a nonzero ratio of intensities of ground-state electron-captures (I_{EC^{0}}) over excited-state ones (I_{EC^{*}}) of I_{EC^{0}}/I_{EC^{*}}=0.0095±[over stat]0.0022±[over sys]0.0010 (68% C.L.), with the null hypothesis rejected at 4σ. In terms of branching ratio, this signal yields I_{EC^{0}}=0.098%±[over stat]0.023%±[over sys]0.010%, roughly half of the commonly used prediction, with consequences for various fields [27L. Hariasz et al., companion paper, Phys. Rev. C 108, 014327 (2023)PRVCAN2469-998510.1103/PhysRevC.108.014327].
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Affiliation(s)
- M Stukel
- Department of Physics, Engineering Physics & Astronomy, Queen's University, Kingston, Ontario K7L 3N6, Canada
| | - L Hariasz
- Department of Physics, Engineering Physics & Astronomy, Queen's University, Kingston, Ontario K7L 3N6, Canada
| | - P C F Di Stefano
- Department of Physics, Engineering Physics & Astronomy, Queen's University, Kingston, Ontario K7L 3N6, Canada
| | - B C Rasco
- Physics Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA
| | - K P Rykaczewski
- Physics Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA
| | - N T Brewer
- Physics Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA
- Joint Institute for Nuclear Physics and Application, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA
| | - D W Stracener
- Physics Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA
| | - Y Liu
- Physics Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA
| | - Z Gai
- Center for Nanophase Materials Sciences, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA
| | - C Rouleau
- Center for Nanophase Materials Sciences, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA
| | - J Carter
- Berkeley Geochronology Center, Berkeley, California 94709, USA
| | - J Kostensalo
- Natural Resources Institute Finland, Joensuu FI-80100, Finland
| | - J Suhonen
- Department of Physics, University of Jyväskylä, Jyväskylä FI-40014, Finland
| | - H Davis
- Department of Nuclear Engineering, University of Tennessee, Knoxville, Tennessee 37996, USA
- Joint Institute for Advanced Materials, University of Tennessee, Knoxville, Tennessee 37996, USA
| | - E D Lukosi
- Department of Nuclear Engineering, University of Tennessee, Knoxville, Tennessee 37996, USA
- Joint Institute for Advanced Materials, University of Tennessee, Knoxville, Tennessee 37996, USA
| | - K C Goetz
- Nuclear and Extreme Environments Measurement Group, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA
| | - R K Grzywacz
- Physics Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA
- Joint Institute for Nuclear Physics and Application, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA
- Department of Physics and Astronomy, University of Tennessee, Knoxville, Tennessee 37996, USA
| | - M Mancuso
- Max-Planck-Institut für Physik, Munich D-80805, Germany
| | - F Petricca
- Max-Planck-Institut für Physik, Munich D-80805, Germany
| | - A Fijałkowska
- Faculty of Physics, University of Warsaw, Warsaw PL-02-093, Poland
| | - M Wolińska-Cichocka
- Physics Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA
- Joint Institute for Nuclear Physics and Application, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA
- Heavy Ion Laboratory, University of Warsaw, Warsaw PL-02-093, Poland
| | - J Ninkovic
- MPG Semiconductor Laboratory, Munich D-80805, Germany
| | - P Lechner
- MPG Semiconductor Laboratory, Munich D-80805, Germany
| | - R B Ickert
- Department of Earth, Atmospheric, and Planetary Sciences, Purdue University, West Lafayette, Illinois 47907, USA
| | - L E Morgan
- U.S. Geological Survey, Geology, Geophysics, and Geochemistry Science Center, Denver, Colorado 80225, USA
| | - P R Renne
- Berkeley Geochronology Center, Berkeley, California 94709, USA
- Department of Earth and Planetary Science, University of California, Berkeley, California 94720, USA
| | - I Yavin
- Department of Physics, Engineering Physics & Astronomy, Queen's University, Kingston, Ontario K7L 3N6, Canada
- Physics Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA
- Joint Institute for Nuclear Physics and Application, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA
- Center for Nanophase Materials Sciences, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA
- Berkeley Geochronology Center, Berkeley, California 94709, USA
- Natural Resources Institute Finland, Joensuu FI-80100, Finland
- Department of Physics, University of Jyväskylä, Jyväskylä FI-40014, Finland
- Department of Nuclear Engineering, University of Tennessee, Knoxville, Tennessee 37996, USA
- Joint Institute for Advanced Materials, University of Tennessee, Knoxville, Tennessee 37996, USA
- Nuclear and Extreme Environments Measurement Group, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA
- Department of Physics and Astronomy, University of Tennessee, Knoxville, Tennessee 37996, USA
- Max-Planck-Institut für Physik, Munich D-80805, Germany
- Faculty of Physics, University of Warsaw, Warsaw PL-02-093, Poland
- Heavy Ion Laboratory, University of Warsaw, Warsaw PL-02-093, Poland
- MPG Semiconductor Laboratory, Munich D-80805, Germany
- Department of Earth, Atmospheric, and Planetary Sciences, Purdue University, West Lafayette, Illinois 47907, USA
- U.S. Geological Survey, Geology, Geophysics, and Geochemistry Science Center, Denver, Colorado 80225, USA
- Department of Earth and Planetary Science, University of California, Berkeley, California 94720, USA
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Liu L, Zhang P, Feng G, Hou W, Liu T, Gai Z, Shen Y, Qiu X, Li X. Salt priming induces low-temperature tolerance in sugar beet via xanthine metabolism. Plant Physiol Biochem 2023; 201:107810. [PMID: 37321038 DOI: 10.1016/j.plaphy.2023.107810] [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] [Received: 01/31/2023] [Revised: 05/07/2023] [Accepted: 05/31/2023] [Indexed: 06/17/2023]
Abstract
To understand the physiological mechanisms involved in xanthine metabolism during salt priming for improving low-temperature tolerance, salt priming (SP), xanthine dehydrogenase inhibitor (XOI), exogenous allantoin (EA), and back-supplemented EA (XOI + EA) treatments were given and the low-temperature tolerance of sugar beet was tested. Under low-temperature stress, salt priming promoted the growth of sugar beet leaves and increased the maximum quantum efficiency of PS II (Fv/Fm). However, during salt priming, either XOI or EA treatment alone increased the content of reactive oxygen species (ROS), such as superoxide anion and hydrogen peroxide, in the leaves under low-temperature stress. XOI treatment increased allantoinase activity with its gene (BvallB) expression under low-temperature stress. Compared to the XOI treatment, the EA treatment alone and the XOI + EA treatment increased the activities of antioxidant enzymes. At low temperatures, the sucrose content and the activity of key carbohydrate enzymes (AGPase, Cylnv, and FK) were significantly reduced by XOI compared to the changes under salt priming. XOI also stimulated the expression of protein phosphatase 2C and sucrose non-fermenting1-related protein kinase (BvSNRK2). The results of a correlation network analysis showed that BvallB was positively correlated with malondialdehyde, D-Fructose-6-phosphate, and D-Glucose-6-phosphate, and negatively correlated with BvPOX42, BvSNRK2, dehydroascorbate reductase, and catalase. These results suggested that salt-induced xanthine metabolism modulated ROS metabolism, photosynthetic carbon assimilation, and carbohydrate metabolism, thus enhancing low-temperature tolerance in sugar beet. Additionally, xanthine and allantoin were found to play key roles in plant stress resistance.
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Affiliation(s)
- Lei Liu
- College of Resources and Environment / Key Laboratory of Straw Comprehensive Utilization and Black Soil Conservation, Jilin Agricultural University, Changchun, 130118, China; State Key Laboratory of Black Soils Conservation and Utilization, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun, 130102, China
| | - Pengfei Zhang
- College of Agriculture, Northeast Agricultural University, Harbin, 150030, China
| | - Guozhong Feng
- College of Resources and Environment / Key Laboratory of Straw Comprehensive Utilization and Black Soil Conservation, Jilin Agricultural University, Changchun, 130118, China
| | - Wenfeng Hou
- College of Resources and Environment / Key Laboratory of Straw Comprehensive Utilization and Black Soil Conservation, Jilin Agricultural University, Changchun, 130118, China
| | - Tianhao Liu
- State Key Laboratory of Black Soils Conservation and Utilization, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun, 130102, China
| | - Zhijia Gai
- Jiamusi Branch, Heilongjiang Academy of Agricultural Sciences, Jiamusi, 154007, China
| | - Yanhui Shen
- Shandong (Linyi) Institute of Modern Agriculture, Zhejiang University, Linyi, 276000, China
| | - Xin Qiu
- College of Economics and Management, Jilin Agricultural University, Changchun, 130118, China
| | - Xiangnan Li
- State Key Laboratory of Black Soils Conservation and Utilization, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun, 130102, China; College of Advanced Agricultural Sciences, University of Chinese Academy of Sciences, Beijing, 100049, China.
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Gai Z, Zhang M, Zhang P, Zhang J, Liu J, Cai L, Yang X, Zhang N, Yan Z, Liu L, Feng G. 2-Oxoglutarate contributes to the effect of foliar nitrogen on enhancing drought tolerance during flowering and grain yield of soybean. Sci Rep 2023; 13:7274. [PMID: 37142711 PMCID: PMC10160060 DOI: 10.1038/s41598-023-34403-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2023] [Accepted: 04/28/2023] [Indexed: 05/06/2023] Open
Abstract
Drought severely affects the growth and yield of soybean plants especially during the flowering period. To investigate the effect of 2-oxoglutarate (2OG) in combination with foliar nitrogen (N) at flowering stage on drought resistance and seed yield of soybean under drought stress. This experiment was conducted in 2021 and 2022 on drought-resistant variety (Hefeng 50) and drought-sensitive variety (Hefeng 43) soybean plants treated with foliar N (DS + N) and 2-oxoglutarate (DS + 2OG) at flowering stage under drought stress. The results showed that drought stress at flowering stage significantly increased leaf malonaldehyde (MDA) content and reduced soybean yield per plant. However, superoxide dismutase (SOD), peroxidase (POD) and catalase (CAT) activities were significantly increased by foliar N treatment, and 2-oxoglutarate synergistically with foliar N treatment (DS + N + 2OG) was more beneficial to plant photosynthesis. 2-oxoglutarate significantly enhanced plant N content, glutamine synthetase (GS) and glutamate synthase (GOGAT) activity. Furthermore, 2-oxoglutarate increased the accumulation of proline and soluble sugars under drought stress. Under drought stress, soybean seed yield was increased by DS + N + 2OG treatment by 16.48-17.10% and 14.96-18.84% in 2021 and 2022, respectively. Thus, the combination of foliar N and 2-oxoglutarate better mitigated the adverse effects of drought stress and could better compensate for the yield loss of soybean under drought stress.
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Affiliation(s)
- Zhijia Gai
- Jiamusi Branch, Heilongjiang Academy of Agricultural Sciences/Key Laboratory of Breeding and Cultivation of Main Crops in Sanjiang Plain, Jiamusi, 154007, China
| | - Maoming Zhang
- Jiamusi Branch, Heilongjiang Academy of Agricultural Sciences/Key Laboratory of Breeding and Cultivation of Main Crops in Sanjiang Plain, Jiamusi, 154007, China
| | - Pengfei Zhang
- Department of Agronomy, Northeast Agricultural University, Harbin, 15000, China
| | - Jingtao Zhang
- Jiamusi Branch, Heilongjiang Academy of Agricultural Sciences/Key Laboratory of Breeding and Cultivation of Main Crops in Sanjiang Plain, Jiamusi, 154007, China
| | - Jingqi Liu
- Jiamusi Branch, Heilongjiang Academy of Agricultural Sciences/Key Laboratory of Breeding and Cultivation of Main Crops in Sanjiang Plain, Jiamusi, 154007, China
| | - Lijun Cai
- Jiamusi Branch, Heilongjiang Academy of Agricultural Sciences/Key Laboratory of Breeding and Cultivation of Main Crops in Sanjiang Plain, Jiamusi, 154007, China
| | - Xu Yang
- Jiamusi Branch, Heilongjiang Academy of Agricultural Sciences/Key Laboratory of Breeding and Cultivation of Main Crops in Sanjiang Plain, Jiamusi, 154007, China
| | - Na Zhang
- Jiamusi Branch, Heilongjiang Academy of Agricultural Sciences/Key Laboratory of Breeding and Cultivation of Main Crops in Sanjiang Plain, Jiamusi, 154007, China
| | - Zhengnan Yan
- College of Horticulture, Qingdao Agricultural University, Qingdao, 266109, China
| | - Lei Liu
- College of Resources and Environment, Jilin Agricultural University, Changchun, 130118, China.
- State Key Laboratory of Black Soils Conservation and Utilization, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun, 130102, China.
| | - Guozhong Feng
- College of Resources and Environment, Jilin Agricultural University, Changchun, 130118, China.
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Gai Z, Liu J, Cai L, Zhang J, Liu L. Foliar application of alpha-ketoglutarate plus nitrogen improves drought resistance in soybean (Glycine max L. Merr.). Sci Rep 2022; 12:14421. [PMID: 36002532 PMCID: PMC9402593 DOI: 10.1038/s41598-022-18660-4] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2022] [Accepted: 08/17/2022] [Indexed: 11/09/2022] Open
Abstract
The aim of the present research was to understand the impacts of foliar nitrogen and α-oxoglutarate on proline accumulation, photosynthesis, and ammonium assimilation of soybean seedlings subjected to drought stress. The data in the present study demonstrated that foliar α-oxoglutarate and nitrogen significantly enhanced leaf glutamine synthetase (GS) activity, glutamate dehydrogenase (GDH) activity, glutamate content, proline content, relative water content (RWC) and photosynthesis of soybean seedlings exposed to drought stress at each stage. Accordingly, the ammonium content was significantly reduced by foliar α-oxoglutarate and nitrogen. These results suggested that a combination of foliar nitrogen plus α-oxoglutarate had an advantage over either foliar nitrogen or foliar α-oxoglutarate in increasing the proline accumulation under drought stress and a combination of foliar nitrogen plus α-oxoglutarate could better mitigate the adverse impacts of drought stress.
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Affiliation(s)
- Zhijia Gai
- Jiamusi Branch, Heilongjiang Academy of Agricultural Sciences, Jiamusi, 154007, Heilongjiang Province, China
| | - Jingqi Liu
- Jiamusi Branch, Heilongjiang Academy of Agricultural Sciences, Jiamusi, 154007, Heilongjiang Province, China
| | - Lijun Cai
- Jiamusi Branch, Heilongjiang Academy of Agricultural Sciences, Jiamusi, 154007, Heilongjiang Province, China
| | - Jingtao Zhang
- Jiamusi Branch, Heilongjiang Academy of Agricultural Sciences, Jiamusi, 154007, Heilongjiang Province, China
| | - Lei Liu
- College of Resources and Environment, Jilin Agricultural University, Changchun, 130102, Jilin Province, China. .,Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun, 130102, Jilin Province, China.
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Cai L, Guo Z, Zhang J, Gai Z, Liu J, Meng Q, Liu X. No tillage and residue mulching method on bacterial community diversity regulation in a black soil region of Northeastern China. PLoS One 2021; 16:e0256970. [PMID: 34506513 PMCID: PMC8432829 DOI: 10.1371/journal.pone.0256970] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2021] [Accepted: 08/20/2021] [Indexed: 11/18/2022] Open
Abstract
Soil microorganisms are important components of agricultural ecosystems; they are important in agricultural soil nutrient cycle and are easily affected by soil tillage. The response of soil microbial community to tillage is very complex, and the effect of the no tillage and residue mulching method on soil microbial diversity remains unclear. In 2019, the soil was collected from an experimental field after 10 years of continuous cultivation in the black soil area of the Sanjiang Plain in Northeastern China. In this study, the diversity and composition of the soil bacterial community and their relationship with soil properties were explored via high-throughput sequencing under no tillage with four residue mulching treatments. No tillage with 60% residue mulching (NTR3) significantly increased the alpha diversity of the rhizosphere soil bacteria and changed the composition of the bacterial community-consistent with changes in soil physicochemical properties. Proteobacteria, Acidobacteria, and Actinobacteria were the dominant phyla in the sample soil. Soil physicochemical properties explained 80.6% of the changes in soil diversity and composition, of which soil organic carbon, soil pH, and soil temperature were the principal contributors. Our results suggest that no tillage and residue mulching is conducive to increasing soil organic carbon and soil nutrient content, which is a beneficial conservation tillage measure for black soil protection in Sanjiang Plain of Northeast China. The no tillage with residue mulching, especially 60% residue mulching, alters soil bacterial community and highlights the importance of soil physicochemical properties in shaping the diversity and composition of the soil bacterial community. Our findings contribute to a broad understanding of the effects of no tillage and residue mulching on bacterial community differences and provide a scientific basis for the optimization of no tillage measures and sustainable utilization of the black soil of the Sanjiang Plain in Northeastern China.
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Affiliation(s)
- Lijun Cai
- Department of Land and Environment, Shenyang Agricultural University, Shenyang, Liaoning, China
- Jiamusi Branch of Heilongjiang Academy of Agricultural Sciences, Jiamusi, Heilongjiang, China
| | - Zhenhua Guo
- Rice Research Institute of Heilongjiang Academy of Agricultural Sciences, Jiamusi, Heilongjiang, China
| | - Jingtao Zhang
- Jiamusi Branch of Heilongjiang Academy of Agricultural Sciences, Jiamusi, Heilongjiang, China
| | - Zhijia Gai
- Jiamusi Branch of Heilongjiang Academy of Agricultural Sciences, Jiamusi, Heilongjiang, China
| | - Jingqi Liu
- Jiamusi Branch of Heilongjiang Academy of Agricultural Sciences, Jiamusi, Heilongjiang, China
| | - Qingying Meng
- Jiamusi Branch of Heilongjiang Academy of Agricultural Sciences, Jiamusi, Heilongjiang, China
| | - Xiaohu Liu
- Department of Land and Environment, Shenyang Agricultural University, Shenyang, Liaoning, China
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Meng Q, Zou H, Zhang C, Zhu B, Wang N, Yang X, Gai Z, Han Y. Soil mixing with organic matter amendment improves Albic soil physicochemical properties and crop yield in Heilongjiang province, China. PLoS One 2020; 15:e0239788. [PMID: 33048953 PMCID: PMC7553284 DOI: 10.1371/journal.pone.0239788] [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] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2020] [Accepted: 09/13/2020] [Indexed: 11/18/2022] Open
Abstract
Crop productivity in Albic soil is poor, owing to poor soil physicochemical properties. Mixing of Aw layers, representing Albic soil, with B layers, could improve the physicochemical properties of Albic soil, which is characterized by poor humus on the topsoil and high penetration resistance. The objective of the present study conducted in 2015–2016 in an Albic soil region in Heilongjiang province, China, was to explore the effects of different soil mixing strategies on the physicochemical properties of Albic soil and crop yield. There were four soil mixing treatments: conventional subsoiler (CS), three-stage subsoil mixing plough (TSMP), four-stage subsoil mixing plough (FSMP), and three-stage subsoil interval mixing plough (TSIMP). Our results demonstrated that the Aw layer bulk density of Albic soil under TSMP, FSMP, and TSIMP decreased significantly compared to that under CS. In addition, the total porosity of the soil under these treatments increased significantly in 2 years. Compared to the water holding capacity under the CS treatment, other treatments increased significantly in the Aw layer. Furthermore, soil penetration resistance of the Aw layer decreased following Aw and B layer mixing. All three soil mixing treatments also increased soil aggregate stability and cation exchange capacity but reduced soil organic carbon content in the Aw layer. Soil mixing increased soybean and maize seed yield. Overall, Aw and B layer mixing improved Albic soil structure and physiochemical properties and increased crop yield; thus, this mixing is a feasible approach for Albic soil improvement, with optimal improvements observed under the FMSP strategy, which also added organic substances to the Aw layer.
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Affiliation(s)
- Qingying Meng
- Department of Land and Environment, Shenyang Agricultural University, Shengyang, Liaoning, China
- Jiamusi Branch, Heilongjiang Academy of Agricultural Sciences, Jiamusi, Heilongjiang, China
| | - Hongtao Zou
- Department of Land and Environment, Shenyang Agricultural University, Shengyang, Liaoning, China
- * E-mail:
| | - Chunfeng Zhang
- Jiamusi Branch, Heilongjiang Academy of Agricultural Sciences, Jiamusi, Heilongjiang, China
| | - Baoguo Zhu
- Jiamusi Branch, Heilongjiang Academy of Agricultural Sciences, Jiamusi, Heilongjiang, China
| | - Nannan Wang
- Jiamusi Branch, Heilongjiang Academy of Agricultural Sciences, Jiamusi, Heilongjiang, China
| | - Xiaohe Yang
- Department of Land and Environment, Shenyang Agricultural University, Shengyang, Liaoning, China
- Jiamusi Branch, Heilongjiang Academy of Agricultural Sciences, Jiamusi, Heilongjiang, China
| | - Zhijia Gai
- Jiamusi Branch, Heilongjiang Academy of Agricultural Sciences, Jiamusi, Heilongjiang, China
| | - Yanyu Han
- Department of Land and Environment, Shenyang Agricultural University, Shengyang, Liaoning, China
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Gai Z, Liu L, Zhang J, Liu J, Cai L. Effects of exogenous α-oxoglutarate on proline accumulation, ammonium assimilation and photosynthesis of soybean seedling (Glycine max(L.) Merr.) exposed to cold stress. Sci Rep 2020; 10:17017. [PMID: 33046814 PMCID: PMC7550343 DOI: 10.1038/s41598-020-74094-w] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2020] [Accepted: 09/18/2020] [Indexed: 11/16/2022] Open
Abstract
The objective of this study was to examine the effects of exogenous α-oxoglutarate on leaf proline accumulation, ammonium assimilation and photosynthesis of soybean when exposed to cold stress. To achieve this objective, exogenous α-oxoglutarate was sprayed to potted seedlings of Henong60 and Heinong48 at 0, 2.5, 5.0 and 7.5 mmol/L, identified as A0, A2.5, A5.0, and A7.5, respectively. Leaf samples were collected after cold stress of 24 h (S1 stage) and 48 h (S2 stage). The results indicated that exogenous α-oxoglutarate significantly enhanced leaf GS activity, NADP-GDH activity, glutamate content, proline content and photosynthesis of soybean seedling exposed to cold stress at S1 and S2 stages. The ammonium content in leaf was significantly decreased by exogenous α-oxoglutarate at both stages. 5.0 mmol/L of exogenous α-oxoglutarate is the optimum concentration in this study. Leaf proline content for Henong60 and Heinong48 at A5.0 was 37.53% and 17.96% higher than that at A0 at S1 stage, respectively. Proline content for Henong60 and Heinong48 increased by 28.82% and 12.41% at A5.0 and A0, respectively, at S2 stage. Those results suggested that exogenous α-oxoglutarate could alleviate the adverse effects of cold stress.
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Affiliation(s)
- Zhijia Gai
- Heilongjiang Academy of Agricultural Sciences Postdoctoral Programme, Xuefu Road 368, Harbin City, 150086, Heilongjiang Province, China
- Jiamusi Branch, Heilongjiang Academy of Agricultural Sciences, Anqing Street 531, Dongfeng District, Jiamusi City, 154007, Heilongjiang Province, China
| | - Lei Liu
- College of Agronomy, Northeast Agricultural University, Changjiang Road 600, Harbin City, 150038, Heilongjiang Province, China
| | - Jingtao Zhang
- Jiamusi Branch, Heilongjiang Academy of Agricultural Sciences, Anqing Street 531, Dongfeng District, Jiamusi City, 154007, Heilongjiang Province, China.
| | - Jingqi Liu
- Jiamusi Branch, Heilongjiang Academy of Agricultural Sciences, Anqing Street 531, Dongfeng District, Jiamusi City, 154007, Heilongjiang Province, China
| | - Lijun Cai
- Jiamusi Branch, Heilongjiang Academy of Agricultural Sciences, Anqing Street 531, Dongfeng District, Jiamusi City, 154007, Heilongjiang Province, China
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9
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Liu L, Liu D, Wang Z, Zou C, Wang B, Zhang H, Gai Z, Zhang P, Wang Y, Li C. Exogenous allantoin improves the salt tolerance of sugar beet by increasing putrescine metabolism and antioxidant activities. Plant Physiol Biochem 2020; 154:699-713. [PMID: 32750647 DOI: 10.1016/j.plaphy.2020.06.034] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [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: 04/08/2020] [Revised: 06/18/2020] [Accepted: 06/19/2020] [Indexed: 05/22/2023]
Abstract
Allantoin as a nitrogen metabolite can improve the salt tolerance in plants, but its mechanism of action remain elusive. Herein, the effects of pretreatment with exogenous allantoin in salt tolerance were investigated in sugar beet. The seedlings were subjected to salt stress (300 mM Na+) without or with different allantoin concentrations (0.01, 0.1, and 1 mM). The effects of allantoin on plant growth, homeostasis, oxidative damage, osmoregulation, and polyamine metabolism were studied. The results showed that salt stress inhibited the net photosynthetic rate and plant growth, and caused oxidative damage. However, these adverse effects were mitigated by exogenous allantoin in a dose-dependent manner, especially at 0.1 mM. Allantoin reduced the accumulation of ROS by increasing the activities of superoxide dismutase (SOD), peroxidase (POD), catalase (CAT), ascorbate peroxidase (APX), and AsA content. Under salt stress, allantoin reduced the root concentrations of free putrescine (Put) but increased the free spermine (Spm) in leaves and roots. Furthermore, allantoin decreased the Na+/K+ ratio and promoted the accumulation of betaine and soluble sugars in leaves and roots. Under salinity conditions, allantoin may enhance the antioxidant system and improve ion homeostasis by enhancing putrescine and/or spermine accumulation. In addition, Pearson's correlation and principal component analysis (PCA) established correlations between physiological parameters, and significant differences between different concentrations of allantoin were observed. In total, exogenous allantoin effectively reduced the oxidative damage and ion toxicity in sugar beet, caused by salinity, this finding would be helpful in improving salt tolerance in plant.
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Affiliation(s)
- Lei Liu
- College of Agronomy, Northeast Agricultural University, Harbin, 150030, Heilongjiang, China
| | - Dan Liu
- College of Agronomy, Northeast Agricultural University, Harbin, 150030, Heilongjiang, China
| | - Ziyang Wang
- College of Agronomy, Northeast Agricultural University, Harbin, 150030, Heilongjiang, China
| | - Chunlei Zou
- College of Agronomy, Northeast Agricultural University, Harbin, 150030, Heilongjiang, China
| | - Bin Wang
- College of Agronomy, Northeast Agricultural University, Harbin, 150030, Heilongjiang, China
| | - He Zhang
- College of Agronomy, Northeast Agricultural University, Harbin, 150030, Heilongjiang, China
| | - Zhijia Gai
- Jiamusi Branch, Heilongjiang Academy of Agricultural Sciences, Jiamusi, 154007, Heilongjiang, China
| | - Pengfei Zhang
- College of Agronomy, Northeast Agricultural University, Harbin, 150030, Heilongjiang, China
| | - Yubo Wang
- College of Agronomy, Northeast Agricultural University, Harbin, 150030, Heilongjiang, China
| | - Caifeng Li
- College of Agronomy, Northeast Agricultural University, Harbin, 150030, Heilongjiang, China.
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Zou C, Wang Y, Wang B, Liu D, Liu L, Gai Z, Li C. Long non-coding RNAs in the alkaline stress response in sugar beet (Beta vulgaris L.). BMC Plant Biol 2020; 20:227. [PMID: 32434543 PMCID: PMC7241001 DOI: 10.1186/s12870-020-02437-w] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/07/2020] [Accepted: 05/10/2020] [Indexed: 05/20/2023]
Abstract
BACKGROUND Long noncoding RNAs (lncRNAs) play crucial roles in regulating numerous biological processes in which complicated mechanisms are involved. Nonetheless, little is known about the number, features, sequences, and possible effects of lncRNAs on plant responses to alkaline stress. RESULTS Leaf samples collected based on the control Beta vulgaris L., as well as those under short-term and long-term alkaline treatments, were subjected to high-throughput RNA sequencing, through which a total of 8535 lncRNAs with reliable expression were detected. Of these lncRNAs, 102 and 49 lncRNA expression profiles were altered after short- and long-term alkaline stress, respectively. Moreover, 7 lncRNAs were recognized as precursors to 17 previously identified miRNAs. Four lncRNAs responsive to alkaline stress were estimated as targets for 8 miRNAs. Moreover, computational analysis predicted 4318 potential target genes as lncRNAs responsive to alkaline stress. Analysis of functional annotations showed that the abovementioned possible target genes were involved in various bioprocesses, such as kinase activity, structural constituents of ribosomes, the ribonucleoprotein complex and protein metabolic processes. Association analysis provided convincing proof of the interplay of specific candidate target genes with lncRNAs. CONCLUSION LncRNAs likely exert vital roles during the regulation of the alkaline stress response and adaptation in plants through interaction with protein-coding genes. The findings of this study contribute to comprehensively examining lncRNAs in Beta vulgaris L. and shed more light on the possible roles and modulating interplays of lncRNAs responsive to alkaline stress, thereby laying a certain basis for functional analyses of these types of Beta vulgaris L. lncRNAs in the future.
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Affiliation(s)
- Chunlei Zou
- College of Agronomy, Northeast Agricultural University, Harbin, 150030 People’s Republic of China
| | - Yubo Wang
- College of Agronomy, Northeast Agricultural University, Harbin, 150030 People’s Republic of China
| | - Bin Wang
- College of Agronomy, Northeast Agricultural University, Harbin, 150030 People’s Republic of China
| | - Dan Liu
- College of Agronomy, Northeast Agricultural University, Harbin, 150030 People’s Republic of China
| | - Lei Liu
- College of Agronomy, Northeast Agricultural University, Harbin, 150030 People’s Republic of China
| | - Zhijia Gai
- Jiamusi Branch, Heilongjiang Academy of Agricultural Sciences, Jiamusi, 154000 People’s Republic of China
| | - Caifeng Li
- College of Agronomy, Northeast Agricultural University, Harbin, 150030 People’s Republic of China
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11
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Zou C, Liu D, Wu P, Wang Y, Gai Z, Liu L, Yang F, Li C, Guo G. Transcriptome analysis of sugar beet (Beta vulgaris L.) in response to alkaline stress. Plant Mol Biol 2020; 102:645-657. [PMID: 32040759 DOI: 10.1007/s11103-020-00971-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [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: 07/07/2018] [Accepted: 01/18/2020] [Indexed: 05/20/2023]
Abstract
RNA-seq was used to analyze the transcriptional changes in sugar beet (Beta vulgaris L.) triggered by alkaline solution to elucidate the molecular mechanism underlying alkaline tolerance in sugar beet. Several differentially expressed genes related to stress tolerance were identified. Our results provide a valuable resource for the breeding of new germplasms with high alkaline tolerance. Alkalinity is a highly stressful environmental factor that limits plant growth and production. Sugar beet own the ability to acclimate to various abiotic stresses, especially salt and alkaline stress. Although substantial previous studies on response of sugar beet to saline stress has been conducted, the expressions of alkali-responsive genes in sugar beet have not been comprehensively investigated. In this study, we conducted transcriptome analysis of leaves in sugar beet seedlings treated with alkaline solutions for 0 day (control, C), 3 days (short-term alkaline treatment, ST) and 7 days (long-term alkaline treatment, LT). The clean reads were obtained and assembled into 25,507 unigenes. Among them, 975 and 383 differentially expressed genes (DEGs) were identified in the comparison groups ST_vs_C and LT_vs_C, respectively. Gene ontology (GO) analysis revealed that oxidation-reduction process and lipid metabolic process were the most enriched GO term among the DEGs in ST_vs_C and LT_vs_C, respectively. According to Kyoto Encyclopedia of Genes and Genomes pathway, carbon fixation in photosynthetic organisms pathway were significantly enriched under alkaline stress. Besides, expression level of genes encoding D-3-phosphoglycerate dehydrogenase 1, glutamyl-tRNA reductase 1, fatty acid hydroperoxide lyase, ethylene-insensitive protein 2, metal tolerance protein 11 and magnesium-chelatase subunit ChlI, etc., were significantly altered under alkaline stress. Additionally, among the DEGs, 136 were non-annotated genes and 24 occurred with differential alternative splicing. Our results provide a valuable resource on alkali-responsive genes and should benefit the improvement of alkaline stress tolerance in sugar beet.
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Affiliation(s)
- Chunlei Zou
- College of Agronomy, Northeast Agricultural University, Harbin, China
| | - Dan Liu
- College of Agronomy, Northeast Agricultural University, Harbin, China
| | - Peiran Wu
- College of Agronomy, Northeast Agricultural University, Harbin, China
| | - Yubo Wang
- College of Agronomy, Northeast Agricultural University, Harbin, China
| | - Zhijia Gai
- Jiamusi Branch, Heilongjiang Academy of Agricultural Sciences, Jiamusi, China
| | - Lei Liu
- College of Agronomy, Northeast Agricultural University, Harbin, China
| | - Fangfang Yang
- College of Agronomy, Northeast Agricultural University, Harbin, China
| | - Caifeng Li
- College of Agronomy, Northeast Agricultural University, Harbin, China.
| | - Guanghao Guo
- College of Agronomy, Northeast Agricultural University, Harbin, China
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12
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Gai Z, Zhang J, Li C. Effects of starter nitrogen fertilizer on soybean root activity, leaf photosynthesis and grain yield. PLoS One 2017; 12:e0174841. [PMID: 28388620 PMCID: PMC5384667 DOI: 10.1371/journal.pone.0174841] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2016] [Accepted: 03/16/2017] [Indexed: 11/18/2022] Open
Abstract
The objective of this study was to examine the impact of starter nitrogen fertilizer on soybean root activity, leaf photosynthesis, grain yield and their relationship. To achieve this objective, field experiments were conducted in 2013 and 2014, using a randomized complete block design, with three replications. Nitrogen was applied at planting at rates of 0, 25, 50, and 75 kg N ha-1. In both years, starter nitrogen fertilizer benefited root activity, leaf photosynthesis, and consequently its yield. Statistically significant correlation was found among root activity, leaf photosynthetic rate, and grain yield at the developmental stage. The application of N25, N50, and N75 increased grain yield by 1.28%, 2.47%, and 1.58% in 2013 and by 0.62%, 2.77%, and 2.06% in 2014 compared to the N0 treatment. Maximum grain yield of 3238.91 kg ha-1 in 2013 and 3086.87 kg ha-1 in 2014 were recorded for N50 treatment. Grain yield was greater for 2013 than 2014, possibly due to more favorable environmental conditions. This research indicated that applying nitrogen as starter is necessary to increase soybean yield in Sangjiang River Plain in China.
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Affiliation(s)
- Zhijia Gai
- Department of Agronomy, Northeast Agricultural University, Harbin, Heilongjiang, China
- Jiamusi Branch, Heilongjiang Academy of Agricultural Sciences, Jiamusi, Heilongjiang, China
| | - Jingtao Zhang
- Jiamusi Branch, Heilongjiang Academy of Agricultural Sciences, Jiamusi, Heilongjiang, China
| | - Caifeng Li
- Department of Agronomy, Northeast Agricultural University, Harbin, Heilongjiang, China
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13
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Liu ZQ, Li L, Gai Z, Clarkson JD, Hsu SL, Wong AT, Fan LS, Lin MW, Rouleau CM, Ward TZ, Lee HN, Sefat AS, Christen HM, Ramesh R. Full Electroresistance Modulation in a Mixed-Phase Metallic Alloy. Phys Rev Lett 2016; 116:097203. [PMID: 26991197 DOI: 10.1103/physrevlett.116.097203] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/19/2015] [Indexed: 06/05/2023]
Abstract
We report a giant, ∼22%, electroresistance modulation for a metallic alloy above room temperature. It is achieved by a small electric field of 2 kV/cm via piezoelectric strain-mediated magnetoelectric coupling and the resulting magnetic phase transition in epitaxial FeRh/BaTiO_{3} heterostructures. This work presents detailed experimental evidence for an isothermal magnetic phase transition driven by tetragonality modulation in FeRh thin films, which is in contrast to the large volume expansion in the conventional temperature-driven magnetic phase transition in FeRh. Moreover, all the experimental results in this work illustrate FeRh as a mixed-phase model system well similar to phase-separated colossal magnetoresistance systems with phase instability therein.
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Affiliation(s)
- Z Q Liu
- Center for Nanophase Materials Sciences, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA
- Department of Materials Science and Engineering, University of California, Berkeley, California 94720, USA
| | - L Li
- Materials Science and Technology Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA
| | - Z Gai
- Center for Nanophase Materials Sciences, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA
| | - J D Clarkson
- Department of Materials Science and Engineering, University of California, Berkeley, California 94720, USA
| | - S L Hsu
- Department of Materials Science and Engineering, University of California, Berkeley, California 94720, USA
| | - A T Wong
- Materials Science and Technology Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA
- Materials Science and Engineering, University of Tennessee, Knoxville, Tennessee 37996, USA
| | - L S Fan
- Materials Science and Technology Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA
| | - M-W Lin
- Center for Nanophase Materials Sciences, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA
| | - C M Rouleau
- Center for Nanophase Materials Sciences, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA
| | - T Z Ward
- Materials Science and Technology Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA
| | - H N Lee
- Materials Science and Technology Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA
| | - A S Sefat
- Materials Science and Technology Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA
| | - H M Christen
- Center for Nanophase Materials Sciences, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA
| | - R Ramesh
- Department of Materials Science and Engineering, University of California, Berkeley, California 94720, USA
- Department of Physics, University of California, Berkeley, California 94720, USA
- Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
- Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA
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14
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Leite Ferreira B, Brandão P, Dos Santos A, Gai Z, Cruz C, Reis M, Santos T, Félix V. Heptacopper(II) and dicopper(II)-adenine complexes: synthesis, structural characterization, and magnetic properties. J COORD CHEM 2015. [DOI: 10.1080/00958972.2015.1061126] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
| | - Paula Brandão
- TEMA−NRD, Departamento de Engenharia Mecânica, Universidade de Aveiro, Aveiro, Portugal
| | - A.M. Dos Santos
- Quantum Condensed Matter Division, Oak Ridge National Laboratory, Oak Ridge, TN, USA
| | - Z. Gai
- Center for Nanophase Materials Sciences, Oak Ridge National Laboratory, Oak Ridge, TN, USA
| | - C. Cruz
- Instituto de Física, Universidade Federal Fluminense, Niterói, Brazil
| | - M.S. Reis
- Instituto de Física, Universidade Federal Fluminense, Niterói, Brazil
| | - T.M. Santos
- CICECO, Departamento de Química, Universidade de Aveiro, Aveiro, Portugal
| | - V. Félix
- CICECO, Departamento de Química, Universidade de Aveiro, Aveiro, Portugal
- iBiMED, Departamento de Química, Universidade de Aveiro, Aveiro, Portugal
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15
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Zhang KHL, Du Y, Sushko PV, Bowden ME, Shutthanandan V, Qiao L, Cao GX, Gai Z, Sallis S, Piper LFJ, Chambers SA. Electronic and magnetic properties of epitaxial perovskite SrCrO₃(0 0 1). J Phys Condens Matter 2015; 27:245605. [PMID: 26037231 DOI: 10.1088/0953-8984/27/24/245605] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [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
We have investigated the intrinsic properties of SrCrO3 epitaxial thin films synthesized by molecular beam epitaxy. We find compelling evidence that SrCrO3 is a correlated metal. X-ray photoemission valence band and O K-edge x-ray absorption spectra indicate a strongly hybridized Cr3d-O2p state crossing the Fermi level, leading to metallic behavior. Comparison between valence band spectra near the Fermi level and the densities of states calculated using density functional theory (DFT) suggests the presence of coherent and incoherent states and points to strong electron correlation effects. The magnetic susceptibility can be described by Pauli paramagnetism at temperatures above 100 K, but reveals antiferromagnetic behavior at lower temperatures, possibly resulting from orbital ordering.
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Affiliation(s)
- K H L Zhang
- Physical Sciences Division, Fundamental & Computational Sciences Directorate, Pacific Northwest National Laboratory, Richland, WA 99352, USA. Department of Materials Science and Metallurgy, University of Cambridge, Cambridge, CB3 0FS, UK
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16
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Jiang J, Zhang X, Huo R, Li X, Yang Y, Gai Z, Xu M, Shen L, Cai L, Wan C, Li B, He L, Qin S. Association study of UGT1A9 promoter polymorphisms with DILI based on systematically regional variation screen in Chinese population. Pharmacogenomics J 2014; 15:326-31. [PMID: 25446781 DOI: 10.1038/tpj.2014.75] [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] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/27/2014] [Revised: 09/09/2014] [Accepted: 10/09/2014] [Indexed: 02/05/2023]
Abstract
Drug-induced liver injury (DILI) is caused by unpredictable adverse drug reaction due mainly to the accumulation of hepatotoxic compounds in the liver resulting in significant damage. Drug-metabolizing enzymes have been prime targets for molecular studies relevant to DILI. The gene UGT1A9 mainly expresses in the liver and has an important role in drug metabolism. The Han Chinese has a very long and complex demographic history, and the population stratification arising from the interplay of different geographic areas may influence the polymorphism pattern. We selected 260 healthy subjects in three different geographic areas (including Xian, Shanghai and Liuzhou) for systemic screening and analysis of single-nucleotide polymorphisms (SNPs) in the promoter region of UGT1A9. Eight SNPs were identified and no regional disparity exists among the three populations. Based on these results, 213 DILI patients from all over the Chinese mainland were further recruited to investigate possible association between UGT1A9 and DILI. We observed statistically significant associations between SNP rs2741045 and DILI at both allele and genotype levels (allele: P=0.032; genotype: P=0.029; after Bonferroni correction). Also, multivariate interaction analysis discovered the interaction between rs2741045 and age associated with DILI significantly. This is the first such screening study to investigate the association between UGT1A9 promoter polymorphisms and DILI in the Chinese population and it could provide the basis for further study of DILI mechanisms.
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Affiliation(s)
- J Jiang
- 1] Bio-X Institutes, Key Laboratory for the Genetics of Developmental and Neuropsychiatric Disorders (Ministry of Education), Shanghai Jiao Tong University, Shanghai, China [2] Shanghai Genome Pilot Institutes for Genomics and Human Health, Shanghai, China
| | - X Zhang
- Department of Pharmacy, Shanghai Pulmonary Hospital, Tongji University School of Medicine, Shanghai, China
| | - R Huo
- 1] Bio-X Institutes, Key Laboratory for the Genetics of Developmental and Neuropsychiatric Disorders (Ministry of Education), Shanghai Jiao Tong University, Shanghai, China [2] Shanghai Genome Pilot Institutes for Genomics and Human Health, Shanghai, China
| | - X Li
- 1] Bio-X Institutes, Key Laboratory for the Genetics of Developmental and Neuropsychiatric Disorders (Ministry of Education), Shanghai Jiao Tong University, Shanghai, China [2] Shanghai Genome Pilot Institutes for Genomics and Human Health, Shanghai, China
| | - Y Yang
- General Hospital of Ningxia Medical University, YinChuan, China
| | - Z Gai
- Jinan Infectious Disease Hospital, Shandong University, Jinan, China
| | - M Xu
- 1] Bio-X Institutes, Key Laboratory for the Genetics of Developmental and Neuropsychiatric Disorders (Ministry of Education), Shanghai Jiao Tong University, Shanghai, China [2] Shanghai Genome Pilot Institutes for Genomics and Human Health, Shanghai, China
| | - L Shen
- 1] Bio-X Institutes, Key Laboratory for the Genetics of Developmental and Neuropsychiatric Disorders (Ministry of Education), Shanghai Jiao Tong University, Shanghai, China [2] Shanghai Genome Pilot Institutes for Genomics and Human Health, Shanghai, China
| | - L Cai
- 1] Bio-X Institutes, Key Laboratory for the Genetics of Developmental and Neuropsychiatric Disorders (Ministry of Education), Shanghai Jiao Tong University, Shanghai, China [2] Shanghai Genome Pilot Institutes for Genomics and Human Health, Shanghai, China
| | - C Wan
- 1] Bio-X Institutes, Key Laboratory for the Genetics of Developmental and Neuropsychiatric Disorders (Ministry of Education), Shanghai Jiao Tong University, Shanghai, China [2] Shanghai Genome Pilot Institutes for Genomics and Human Health, Shanghai, China
| | - B Li
- 1] Bio-X Institutes, Key Laboratory for the Genetics of Developmental and Neuropsychiatric Disorders (Ministry of Education), Shanghai Jiao Tong University, Shanghai, China [2] Shanghai Genome Pilot Institutes for Genomics and Human Health, Shanghai, China
| | - L He
- 1] Bio-X Institutes, Key Laboratory for the Genetics of Developmental and Neuropsychiatric Disorders (Ministry of Education), Shanghai Jiao Tong University, Shanghai, China [2] Shanghai Genome Pilot Institutes for Genomics and Human Health, Shanghai, China [3] Children's Hospital and Institutes of Biomedical Sciences, Fudan University, Shanghai, China
| | - S Qin
- 1] Bio-X Institutes, Key Laboratory for the Genetics of Developmental and Neuropsychiatric Disorders (Ministry of Education), Shanghai Jiao Tong University, Shanghai, China [2] Shanghai Genome Pilot Institutes for Genomics and Human Health, Shanghai, China
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17
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Pramanick A, Lauter V, Wang XL, An K, Ambaye H, Goyette Jr RJ, Yi J, Gai Z, Stoica AD. Polarized neutron diffraction at a spallation source for magnetic studies. J Appl Crystallogr 2012. [DOI: 10.1107/s0021889812034474] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
The availability of high-power spallation neutron sources, along with advances in the development of coupled moderators and neutron polarizers, has made it possible to use polarized neutrons on time-of-flight diffractometers forin situstudies of phenomena contributing to field-induced magnetization of a material. Different electronic and structural phenomena that contribute to the overall magnetization of a material can be studied and clearly identified with polarized neutron diffraction measurements. This article reports the first results from polarized neutron diffraction experiments on a time-of-flight instrument at a spallation source. Magnetic field-induced rotation of electron spins in an Ni–Mn–Ga single crystal was measured with polarized neutron diffraction at the MAGICS reflectometer at the Spallation Neutron Source at Oak Ridge National Laboratory. The difference in intensities measured with spin-up and spin-down polarized neutrons is proportional to the field-induced magnetization of the crystal. The polarized neutron measurements indicate that the magnetic form factor for the 3delectrons of Mn in Ni–Mn–Ga is lower than the value reported earlier for an ideal spherical symmetry of electronic distribution. Future experiments for studying field-induced magnetization in materials following the current methodology are outlined.
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Ward TZ, Gai Z, Xu XY, Guo HW, Yin LF, Shen J. Tuning the metal-insulator transition in manganite films through surface exchange coupling with magnetic nanodots. Phys Rev Lett 2011; 106:157207. [PMID: 21568612 DOI: 10.1103/physrevlett.106.157207] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/19/2010] [Indexed: 05/30/2023]
Abstract
In strongly correlated electronic systems, the global transport behavior depends sensitively on spin ordering. We show that spin ordering in manganites can be controlled by depositing isolated ferromagnetic nanodots at the surface. The exchange field at the interface is tunable with nanodot density and makes it possible to overcome dimensionality and strain effects in frustrated systems to greatly increasing the metal-insulator transition and magnetoresistance. These findings indicate that electronic phase separation can be controlled by the presence of magnetic nanodots.
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Affiliation(s)
- T Z Ward
- Materials Science and Technology Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37830, USA.
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19
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Fuchigami K, Gai Z, Ward TZ, Yin LF, Snijders PC, Plummer EW, Shen J. Tunable metallicity of the La5/8Ca3/8MnO3(001) surface by an oxygen overlayer. Phys Rev Lett 2009; 102:066104. [PMID: 19257611 DOI: 10.1103/physrevlett.102.066104] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/10/2008] [Indexed: 05/27/2023]
Abstract
We studied the surface structure of La_{5/8}Ca_{3/8}MnO_{3}(001) thin films using in situ scanning tunneling microscopy (STM). Atomically resolved STM images reveal that a (sqrt[2]xsqrt[2])R45;{ degrees } reconstructed surface and a (1x1) surface can be converted back and forth through adsorption and desorption of oxygen at the surface. The electrical properties of the surfaces are investigated by scanning tunneling spectroscopy. I-V curves clearly show that the presence of an oxygen overlayer renders the surface insulating while the (1x1) surface without the oxygen overlayer is metallic.
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Affiliation(s)
- K Fuchigami
- Materials Sciences and Technology Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA
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Torija MA, Gai Z, Myoung N, Plummer EW, Shen J. Frozen low-spin interface in ultrathin Fe films on Cu(111). Phys Rev Lett 2005; 95:027201. [PMID: 16090711 DOI: 10.1103/physrevlett.95.027201] [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: 02/16/2005] [Indexed: 05/03/2023]
Abstract
In ultrathin film systems, it is a major challenge to understand how a thickness-driven phase transition proceeds along the cross-sectional direction of the films. We use ultrathin Fe films on Cu(111) as a prototype system to demonstrate how to obtain such information using an in situ scanning tunneling microscope and the surface magneto-optical Kerr effect. The magnetization depth profile of a thickness-driven low-spin to high-spin magnetic phase transition is deduced from the experimental data, which leads us to conclude that a low-spin Fe layer at the Fe/Cu interface stays live upon the phase transition. The magnetically live low-spin phase is believed to be induced by a frozen fcc Fe layer that survives a thickness-driven fcc-->bcc structural transition.
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Affiliation(s)
- M A Torija
- Condensed Matter Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA
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21
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Pierce JP, Torija MA, Gai Z, Shi J, Schulthess TC, Farnan GA, Wendelken JF, Plummer EW, Shen J. Ferromagnetic stability in Fe nanodot assemblies on Cu(111) induced by indirect coupling through the substrate. Phys Rev Lett 2004; 92:237201. [PMID: 15245191 DOI: 10.1103/physrevlett.92.237201] [Citation(s) in RCA: 4] [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] [Received: 02/23/2004] [Indexed: 05/24/2023]
Abstract
We report collective ferromagnetic behavior with high Curie temperatures (T(c)) in Fe dot assemblies supported by the Cu(111) surface. Our ability to tune the average size and spacing of the individual dots allows us to conclude that enhanced magnetic anisotropy cannot account for this high-T(c) ferromagnetic order. Because our Monte Carlo simulations have ruled out the dipolar interaction as the dominant factor in this system, we attribute the origin of the ferromagnetic order to indirect exchange coupling via the Cu(111) substrate.
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Affiliation(s)
- J P Pierce
- Condensed Matter Sciences Division, Oak Ridge National Laboratory, and Department of Physics and Astronomy, The University of Tennessee, Knoxville, USA
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Farnan GA, Fu CL, Gai Z, Krcmar M, Baddorf AP, Zhang Z, Shen J. Electronic stability of magnetic Fe/Co superlattices with monatomic layer alternation. Phys Rev Lett 2003; 91:226106. [PMID: 14683255 DOI: 10.1103/physrevlett.91.226106] [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: 05/26/2003] [Indexed: 05/24/2023]
Abstract
We report a surprising observation that the growth of the [Fe(1 ML)/Co(1 ML)](n) superlattice of L1(0) structure on Cu(100) is stable only up to six atomic layers (n=3), which cannot be rationalized by stress arguments. Instead, first-principles calculations reveal a transition from the L1(0) to the B2 structure due to the effect of dimensionality on the stability of the electronic structure of the superlattice. Whereas the majority-spin electrons are energetically insensitive to the layer thickness, the minority-spin electrons induce the transition at n=3.
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Affiliation(s)
- G A Farnan
- Condensed Matter Sciences Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA
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Gai Z, Ji H, Gao B, Zhao RG, Yang WS. Surface structure of the (3 x 1) and (3 x 2) reconstructions of Ge(113). Phys Rev B Condens Matter 1996; 54:8593-8599. [PMID: 9984536 DOI: 10.1103/physrevb.54.8593] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Gai Z, Yu H, Yang WS. Adatom diffusion on Ge(111) and the corresponding activation energy barrier. Phys Rev B Condens Matter 1996; 53:13547-13550. [PMID: 9983101 DOI: 10.1103/physrevb.53.13547] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Gai Z, Zhao RG, He Y, Ji H, Hu C, Yang WS. Chemisorption of group-III metals on the (111) surface of group-IV semiconductors: In/Ge(111). Phys Rev B Condens Matter 1996; 53:1539-1547. [PMID: 9983617 DOI: 10.1103/physrevb.53.1539] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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26
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Gai Z, He Y, Yu H, Yang WS. Observation of conductance quantization of ballistic metallic point contacts at room temperature. Phys Rev B Condens Matter 1996; 53:1042-1045. [PMID: 9983550 DOI: 10.1103/physrevb.53.1042] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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