Zmspk1, a member of plant snrk2 subfamily in maize enhances tolerance to salt in transgenic Arabidopsis

文献类型: 外文期刊

第一作者: Zou, Huawen

作者: Zou, Huawen;Liu, Hongfang;Li, Zhaojun;Ma, Guohui;Zou, Huawen;Li, Cuihua;Zhao, Mingmin;Tian, Xiaohai

作者机构:

关键词: ZmSPK1;Salt resistance;Transgenic Arabidopsis;SOD activity;Proline content

期刊名称:AUSTRALIAN JOURNAL OF CROP SCIENCE ( 影响因子:1.632; 五年影响因子:1.686 )

ISSN: 1835-2693

年卷期: 2011 年 5 卷 10 期

页码:

收录情况: SCI

摘要: SnRK2s play a key role in the plant stress signaling transduction pathway. In previous study, ZmSPK1, a SnRK2 member has been cloned from maize. Expression pattern analyses showed that ZmSPK1 is induced by mannitol, salt and ABA. To investigate its role under stresses, in this study, ZmSPK1 was subcloned into the plant expression vector pGreen0029 under control of the cauliflower mosaic virus 35S promoter and transferred into Arabidopsis by Agrobacterium tumefaciens. When treated with salt, compared to wild type, transgenic Arabidopsis grow better, have higher seedling fresh weight (FW) and dry weight (DW), proline content and superoxide dismutase (SOD) activity; whereas, malondialdehyde (MDA) content and the relative electric conductivity of transgenic plants are kept to a relative lower level. Our results suggest that ZmSPK1 may play an important role in salt resistance.

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