作者
Debasis Chakrabarty, Prabodh Kumar Trivedi, Prashant Misra, Manish Tiwari, Manju Shri, Devesh Shukla, Smita Kumar, Arti Rai, Ashutosh Pandey, Deepti Nigam, Rudra Dev Tripathi, Rakesh Tuli
发表日期
2009/2/1
期刊
Chemosphere
卷号
74
期号
5
页码范围
688-702
出版商
Pergamon
简介
The effect of arsenic (As) exposure on genome-wide expression was examined in rice (Oryza sativa L., ssp. Indica). A group of defense and stress-responsive genes, transporters, heat-shock proteins, metallothioneins, sulfate-metabolizing proteins, and regulatory genes showed differential expression in rice seedlings challenged with arsenate (AsV) and arsenite (AsIII). AsV stress led to upregulation or downregulation of an additional set of genes in comparison to AsIII. Differential expression of several genes that showed the highest contrast in a microarray analysis was validated by following the quantitative changes in the levels of individual transcripts following challenge with AsV, AsIII, Cd, Cr, and Pb. Most of the selected genes responded to challenge by heavy metals such as arsenic. However, expression of one of the cytochrome P450 genes (Os01g43740) in rice root was induced by AsV but not by other …
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D Chakrabarty, PK Trivedi, P Misra, M Tiwari, M Shri… - Chemosphere, 2009