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| 1 | Alleviation by abscisic acid of Al toxicity in rice bean is not associated with citrate efflux but depends on ABI5-mediated signal transduction pathways显示文摘Under conditions of aluminum(Al) toxicity,which severely inhibits root growth in acidic soils, plants rapidly alter their gene expression to optimize physiological fitness for survival. Abscisic acid(ABA) has been suggested as a mediator between Al stress and gene expression, but the underlying mechanisms remain largely unknown. Here,we investigated ABA-mediated Al-stress responses, using integrated physiological and molecular biology approaches.We demonstrate that Al stress caused ABA accumulation in the root apex of rice bean(Vigna umbellata [Thunb.] Ohwi &Ohashi), which positively regulated Al tolerance. However,this was not associated with known Al-tolerance mechanisms. Transcriptomic analysis revealed that nearly one-third of the responsive genes were shared between the Al-stress and ABA treatments. We further identified a transcription factor, ABI5, as being positively involved in Al tolerance. Arabidopsis abi5 mutants displayed increased sensitivity to Al, which was not related to the regulation of AtALMT1 and AtMATE expression. Functional categorization of ABI5-mediated genes revealed the importance of cell wall modification and osmoregulation in Al tolerance, a finding supported by osmotic stress treatment on Al tolerance. Our results suggest that ABA signal transduction pathways provide an additional layer of regulatory control over Al tolerance in plants. | Wei Fan Jia Meng Xu Pei Wu Zhi Xin Yang He Qiang Lou Wei Wei Chen Jian Fen Jin Shao Jian Zheng Jian Li Yang | 2019 | Journal of Integrative Plant Biology2019，61，2： | 9 |
| 2 | Analysis of the cause of crack in cold rolling of QSn6.5-0.1 strip显示文摘In order to know the cause of cracks in cold rolling of QSn6.5 0.1 copper alloy strip, a lot of experiments and analysis were done. The microstructure changes of QSn6.5 0.1 were investigated by means of metallurgical microscope. The morphology of cracks and surface defects were examined using scanning electron microscope. Macroscopic residual stresses produced in every process during manufacturing in the QSn6.5 0.1 strip were measured by X ray diffraction method and hole drilling method. The results show that the cracks in the QSn6.5 0.1 cold rolling strip were caused due to the derivation of metallurgical defects, such as SnO 2, S, fine looses,the inverse segregation unable to clear up when milling, and the accumulation of all kinds of resi dual stresses. When the accumulation of the residual stress reaches the material′s breaking strength, the cracks will be generated. Several measures to avoid the development of these kinds of cracks were put forward, such as: controlling the casting technology, improving homogenization annealing procedure (680 ℃/7 h) and milling quality(using the second milling when necessary), working out a more reasonable rolling technology to ensure intermediate annealing in time. | ZHANG Sheng hua 1,QIN Ye xia 1,LOU Hua fen 2,LU Jun pan 2,ZHONG Wei jia 2 (1 Department of Materials Science and Engineering, Central South University, Changsha 410083, China 2.Luoyang Copper Processing Company, Luoyang 471000, China) | 2001 | Journal of Central South University of Technology2001，8，2： | 3 |
| 3 | Upregulation ofMicroRNA-210 Regulates Renal Angiogenesis Mediated byActivation of VEGF Signaling Pathway under Ischemia/PerfusionInjury in vivo and in vitro 显示文摘 | Fen Liu Yuan-Lei Lou Jue Wu | 2012 | Kidney Blood Press Res2012，35，3： | 1 |
| 4 | Status and Development Strategies of Grassland Agriculture: A Case Study of Dafang County显示文摘In order to better promote the development of grassland husbandry in the Bijie experimental area and promote industrial poverty alleviation and rural revitalization strategies,the development status of grassland agriculture in developed countries( USA,Netherlands and France) and China is summarized. By learning from the successful experience of grassland agricultural development at home and abroad,combined with the survey results of grassland agriculture in Dafang County of Bijie experimental area,the development of grassland agriculture in Dafang County of Bijie experimental area is analyzed,and corresponding development strategies are put forward. | Jiahai WU Wenzhong CHEN Feng XUE Xiaodong LI Jun XIONG Fen LOU Guangji CHEN Qiong MOU | 2019 | Asian Agricultural Research2019，11，6： | 1 |
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