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Methylglyoxal alleviates cadmium toxicity in wheat (Triticum aestivum L)

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1楼 2017-03-11 20:05:49

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sky蒲公英

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Methylglyoxal alleviates cadmium toxicity in wheat (Triticum aestivum L).
作者:Li, Zhong-Guang; Duan, Xiang-Qiu; Xia, Yan-Mei; Wang, Yue; Zhou, Zhi-Hao; Min, Xiong
Plant cell reports
卷:36 期:2 页:367-370
DOI:10.1007/s00299-016-2070-3
出版年:2017-Feb (Epub 2016 Nov 12)
摘要
KEY MESSAGE: Methylglyoxal alleviates cadmium toxicity in wheat (Triticum aestivum L) by improving plant growth. For a long time, the reactive alpha, beta-carbonyl ketoaldehyde methylglyoxal (CH3COCHO; MG) has been regarded as merely a toxic metabolite in plants, but, now, emerging as a signal molecule in plants. In this study, cadmium (Cd) stress decreased plant height, root length, fresh weight (FW), and dry weight (DW) in a concentration-dependent manner, indicating that Cd had toxic effects on the growth of wheat seedlings. The toxic effects of Cd were alleviated by exogenously applied MG in a dosage dependent fashion, and 700mM MG reached significant differences, but this alleviating effect was eliminated by the treatment with N-acetyl-L-cysteine (NAC, MG scavenger), suggesting that MG could mitigate Cd toxicity in wheat. This study reported for the first time that MG could alleviate Cd toxicity in wheat, uncovering a new possible physiological function for MG, and opening a novel line of research in plant stress biology.
关键词
关键词列表:Cadmium tolerance; Cadmium toxicity; Methylglyoxal; N-acetyl-L-cysteine
作者信息
地址:School of Life Sciences, Yunnan Normal University, Kunming, 650092, People's Republic of China. zhongguang_li@163.com.
文献信息
文献类型:Journal Article
语种:English
PubMed ID:27838814
NLM 唯一 ID:9880970
创建日期: 13 Nov 2016 修订日期: 26 Jan 2017
电子出版:12 Nov 2016
国家/地区: Germany
ISSN:1432-203X
其他信息
状态:In-Process

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2楼2017-03-11 20:29:42

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★ ★ ★ ★ ★ ★ ★ ★ ★ ★
lzg020716: 金币+10, ★★★★★最佳答案 2017-03-12 10:35:07
lazy锦溪: LS-EPI+1 2017-03-12 18:25:52

引用回帖:

2楼: Originally posted by sky蒲公英 at 2017-03-11 20:29:42
Methylglyoxal alleviates cadmium toxicity in wheat (Triticum aestivum L).
作者:Li, Zhong-Guang; Duan, Xiang-Qiu; Xia, Yan-Mei; Wang, Yue; Zhou, Zhi-Hao; Min, Xiong
Plant cell reports
卷:36 期:2 页 ...