Hydrogen sulfide alleviates mercury toxicity by sequestering it in roots or regulating reactive oxygen species productions in rice seedlings

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• 作者：Zhen Chen ; ^{chenzh@tzc.edu.cn} ; ^{jennie1980@163.com} ; Moshun Chen ; Ming Jiang
• 关键词：Hg ; H2S ; Non-protein thiols ; Metallothionein ; bZIP60 ; ROS scavenging
• 刊名：Plant Physiology and Biochemistry
• 出版年：2017
• 出版时间：February 2017
• 年：2017
• 卷：111
• 期：Complete
• 页码：179-192
• 全文大小：3078 K
• 卷排序：111

文摘

Exogenous hydrogen sulfid (H2S) pretreatment promoted rice seedlings growth under Hg stress. H2S inhibited Hg transport from root to shoot. H2S increased bZIP60 and OsMT-1 expressions and NPT levels to sequester Hg in roots. H2S promoted seedlings growth even when the presences of Hg and SOD or CAT inhibitors. H2S attenuated Hg-induced oxidative damages in leaves by regulating O2·− and H2O2 productions.