Unraveling genes promoting ROS metabolism in subcellular organelles of Oryza sativa in response to trivalent and hexavalent chromium

Plants possess a well-organized protective network, wherein antioxidant enzymes play an important part in dealing with oxidative stress induced by over accumulation of ROS in plant cells. In the present study, a microcosm hydroponic experiment was performed to investigate the molecular modification...

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Bibliographic Details
Published in:The Science of the total environment 2020-11, Vol.744, p.140951-140951, Article 140951
Main Authors: Fan, Wei-Jia, Feng, Yu-Xi, Li, Yan-Hong, Lin, Yu-Juan, Yu, Xiao-Zhang
Format: Article
Language:English
Subjects:
Antioxidant enzymes
Chromium
Microarray analysis
qRT-PCR
Rice
ROS
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Summary:Plants possess a well-organized protective network, wherein antioxidant enzymes play an important part in dealing with oxidative stress induced by over accumulation of ROS in plant cells. In the present study, a microcosm hydroponic experiment was performed to investigate the molecular modification of antioxidant enzymes at subcellular levels in rice seedlings in the presence of either trivalent [Cr(III)] or hexavalent chromium [Cr(VI)] using rice oligonucleotide microarray analysis. The results indicated that the production of ROS induced by Cr(III, VI) was concentration-dependent, Cr-specific and tissue-specific. Trivalent or hexavalent chromium exposure significantly (p 
ISSN:0048-9697
1879-1026
DOI:10.1016/j.scitotenv.2020.140951