Hydrogen Sulfide Stimulates Wheat Grain Germination and Counteracts the Effect of Oxidative Damage Caused by Salinity Stress
文献类型： 外文期刊
作者： Ye, S. -C. 1 ; Hu, L. -Y. 1 ; Hu, K. -D. 1 ; Li, Y. -H. 1 ; Yan, H. 2 ; Zhang, X. -Q. 4 ; Zhang, H. 1 ;
作者机构： 1.Hefei Univ Technol, Sch Biotechnol & Food Engn, Hefei 230009, Peoples R China
2.Harbin Univ Sci & Technol, Coll Chem & Environm Engn, Harbin 150080, Peoples R China
3.Coll Heilongjiang Prov, Key Lab Green Chem Technol, Harbin 150080, Peoples R China
4.Anhui Acad Agr Sci, Hefei 230031, Peoples R China
关键词： antioxidant enzymes;hydrogen sulfide;salinity stress;wheat (Triticum aestivum) grain germination
期刊名称：CEREAL RESEARCH COMMUNICATIONS （ 影响因子：0.85； 五年影响因子：1.067 ）
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收录情况： SCI
摘要： Hydrogen sulfide (H2S) has been recently found to be a gaseous signaling molecule in plants. In this work, we studied the role of H2S in alleviating salinity stress during wheat grain germination (Triticum aestivum L. Yangmai 158). Pretreatment with NaHS, a H2S donor, during wheat grain imbibition, could significantly attenuate the inhibitory effect of salinity stress on wheat germination. NaHS-pretreated grain showed higher amylase and esterase activities than water control. NaHS pretreatment differentially stimulated the activities of catalase (CAT), guaiacol peroxidase (POD) and ascorbate peroxidase (APX), decreased the level of malondialdehyde (MDA) and reduced NaCl-induced changes in plasma membrane integrity in the radicle tips of seedlings compared with water control. We conclude that H2S plays an important role in protecting wheat grain from oxidative damage induced by salinity stress.
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