干旱区生态环境知识资源中心(Arid): Creating drought- and salt-tolerant cotton by overexpressing a vacuolar pyrophosphatase gene

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DOI	10.4161/psb.6.6.15223
	Creating drought- and salt-tolerant cotton by overexpressing a vacuolar pyrophosphatase gene
	Zhang, Hong; Shen, Guoxin; Kuppu, Sundaram; Gaxiola, Roberto; Payton, Paxton
通讯作者	Zhang, H
来源期刊	PLANT SIGNALING & BEHAVIOR
ISSN	1559-2316
EISSN	1559-2324
出版年	2011
卷号	6 期号:6 页码:861-863
英文摘要	Increased expression of an Arabidopsis vacuolar pyrophosphatase gene, AVP1, leads to increased drought and salt tolerance in transgenic plants, which has been demonstrated in laboratory and field conditions. The molecular mechanism of AVP1-mediated drought resistance is likely due to increased proton pump activity of the vacuolar pyrophosphatase, which generates a higher proton electrochemical gradient across the vacuolar membrane, leading to lower water potential in the plant vacuole and higher secondary transporter activities that prevent ion accumulation to toxic levels in the cytoplasm. Additionally, overexpression of AVP1 appears to stimulate auxin polar transport, which in turn stimulates root development. The larger root system allows AVP1-overexpressing plants to absorb water more efficiently under drought and saline conditions, resulting in stress tolerance and increased yields. Multi-year field-trial data indicate that overexpression of AVP1 in cotton leads to at least 20% more fiber yield than wild-type control plants in dry-land conditions, which highlights the potential use of AVP1 in improving drought tolerance in crops in arid and semiarid areas of the world.
英文关键词	drought tolerance proton pump salt tolerance transgenic cotton vacuolar membrane
类型	Article
语种	英语
开放获取类型	Bronze, Green Published
收录类别	ESCI
WOS记录号	WOS:000214009800019
WOS类目	Biochemistry & Molecular Biology ; Plant Sciences
WOS研究方向	Biochemistry & Molecular Biology ; Plant Sciences
来源机构	Arizona State University
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/329672
作者单位	[Zhang, Hong; Kuppu, Sundaram] Texas Tech Univ, Dept Biol Sci, Lubbock, TX 79409 USA; [Payton, Paxton] ARS, USDA, Cropping Syst Res Lab, Lubbock, TX USA; [Shen, Guoxin] Zhejiang Acad Agr Sci, Hangzhou, Zhejiang, Peoples R China; [Gaxiola, Roberto] Arizona State Univ, Sch Life Sci, Tempe, AZ USA
推荐引用方式 GB/T 7714	Zhang, Hong,Shen, Guoxin,Kuppu, Sundaram,et al. Creating drought- and salt-tolerant cotton by overexpressing a vacuolar pyrophosphatase gene[J]. Arizona State University,2011,6(6):861-863.
APA	Zhang, Hong,Shen, Guoxin,Kuppu, Sundaram,Gaxiola, Roberto,&Payton, Paxton.(2011).Creating drought- and salt-tolerant cotton by overexpressing a vacuolar pyrophosphatase gene.PLANT SIGNALING & BEHAVIOR,6(6),861-863.
MLA	Zhang, Hong,et al."Creating drought- and salt-tolerant cotton by overexpressing a vacuolar pyrophosphatase gene".PLANT SIGNALING & BEHAVIOR 6.6(2011):861-863.