Enhanced drought tolerance in transgenic Leymus chinensis plants with constitutively expressed wheat TaLEA 3

被引：77
作者：
Wang, Lijuan [1 ,2 ]
Li, Xiaofeng [1 ]
Chen, Shuangyan [1 ]
Liu, Gongshe [1 ]
机构：
[1] Chinese Acad Sci, Inst Bot, Beijing 100093, Peoples R China
[2] Chinese Acad Sci, Grad Sch, Beijing 100093, Peoples R China
来源：
BIOTECHNOLOGY LETTERS | 2009年 / 31卷 / 02期
关键词：
Drought resistance; Late embryogenesis abundant genes; Leymus chinensis; Transformation; Water efficiency; Wheat gene; LIPID-PEROXIDATION; STRESS; GENE; STABILITY; RESPONSES; HVA1;
D O I：
10.1007/s10529-008-9864-5
中图分类号：
Q81 [生物工程学（生物技术）]; Q93 [微生物学];
学科分类号：
071005 ; 0836 ; 090102 ; 100705 ;
摘要：
Leymus chinensis is an important grassland perennial grass. However, its drought tolerance requires to be improved. LEA (late embryogenesis abundant) genes are believed to confer resistance to drought and water deficiency. Using Agrobacterium-mediated transformation, a wheat LEA gene, TaLEA (3) , was integrated into L. chinensis. The transgenic lines showed enhanced growth ability under drought stress during which transgenic lines had increased the relative water content, leaf water potential, relative average growth rate, but decreased the malondialdehyde content compared with the non-transgenic plant. Thus, transgenic breeding is an efficient approach to enhance drought tolerance in L. chinensis.
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页码：313 / 319
页数：7
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