SnRK2 Gene Expression in Responses to Physiological Characteristics under Water Stress in Solanum tuberosum

doi:10.7522/j.issn.1000-694X.2013.00341

JOURNAL OF DESERT RESEARCH

2014, Vol. 34

Issue (2): 481-487 DOI: 10.7522/j.issn.1000-694X.2013.00341

SnRK2 Gene Expression in Responses to Physiological Characteristics under Water Stress in Solanum tuberosum

Mao Juan^1,2, Bai Jiangping^1,2, Zhang Junlian^1,2, Fan Aqi^1,2, Ma Zonghuan², Wu Jinhong², Wang Di^1,2

1. Gansu Key Lab of Crop Improvement & Germplasm Enhancement/Gansu Provincial Key Lab of Aridland Crop Science, Gansu Agricultural University, Lanzhou 730070, China;
2. College of Agronomy, Gansu Agricultural University, Lanzhou 730070, China

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Abstract The physiological response and StSnRK2 expression profiles of two solanum tuberosum (Longshu No.3 and Atlantic) were studied after water stress treatments. The physiological character of the acticivies of anti-oxcide enzymes, malondialdehyde content, relative conductivity and proline content changed, but the two cultivars had different characters. The relative expression levels of 8 members in Atlantic and Longshu No.3 had obvious difference after severe water stress. The relative expression of StSnRK2.1, StSnRK2.2 and StSnRK2.3 were significantly higher than the control, however, obvious difference was found in an increase extent of different gene expression. StSnRK2.7 had no difference with the control. The expression of StSnRK2.4 was 9.5 fold in Longshu No.3, which was the maximum among the 8 members after water stress. The expression of StSnRK2.1, StSnRK2.2, StSnRK2.3, StSnRK2.4 and StSnRK2.6, had a high significantly positive correlation with some of the physiological characteristics. The significantly negative correlation was observed between the expression of StSnRK2.5 and StSnRK2.8 and some of the physiological characteristics. Expression of StSnRK2.7 had no relationship of physiological characteristics.

Key words: water stress potato SnRK2 gene expression physiological characteristics

Received: 16 October 2013 Published: 20 March 2014

ZTFLH:

Q945.79

Corresponding Authors: 王蒂（Email：wangd@gsau.edu.cn） E-mail: wangd@gsau.edu.cn



	Articles by authors
	Mao Juan
	Bai Jiangping
	Zhang Junlian
	Fan Aqi
	Ma Zonghuan
	Wu Jinhong
	Wang Di

Cite this article:

Mao Juan, Bai Jiangping, Zhang Junlian, Fan Aqi, Ma Zonghuan, Wu Jinhong, Wang Di. SnRK2 Gene Expression in Responses to Physiological Characteristics under Water Stress in Solanum tuberosum. JOURNAL OF DESERT RESEARCH, 2014, 34(2): 481-487.

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http://www.desert.ac.cn/EN/10.7522/j.issn.1000-694X.2013.00341 OR http://www.desert.ac.cn/EN/Y2014/V34/I2/481

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