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Transcriptomic changes in response to mercury toxicity in rice roots

ABSTRACT: To gain more insight into cellular responses to mercury, we have undertaken a large-scale analysis of the rice transcriptome during mercury stress.More transcripts were responsive to mercury during short (pooled from 1- and 3-h treatments) , as compared to long (24 h) exposures. After short exposures, these induced genes can be divided into different functional categories, mainly on the basis of cell wall formation, chemical detoxification, secondary metabolism, signal transduction and abiotic stress response. Molecular mechanisms for the mercury toxicity in rice roots. Two-condition experiment, short exposures and long exposures. Comparison of mock control and rice seedlings treated with 25mM Hg during short (pooled from 1- and 3-h treatments), as compared to long (24 h) exposures.; Biological replicates: 3 control replicates (short and long exposures), 3 Hg-treated replicates (short and long exposures).

ORGANISM(S): Oryza sativa

SUBMITTER: Wen-Chang Chi 

PROVIDER: E-GEOD-41719 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

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Publications

Transcriptome profiling and physiological studies reveal a major role for aromatic amino acids in mercury stress tolerance in rice seedlings.

Chen Yun-An YA   Chi Wen-Chang WC   Trinh Ngoc Nam NN   Huang Li-Yao LY   Chen Ying-Chih YC   Cheng Kai-Teng KT   Huang Tsai-Lien TL   Lin Chung-Yi CY   Huang Hao-Jen HJ  

PloS one 20140519 5

Mercury (Hg) is a serious environmental pollution threat to the planet. The accumulation of Hg in plants disrupts many cellular-level functions and inhibits growth and development, but the mechanism is not fully understood. To gain more insight into the cellular response to Hg, we performed a large-scale analysis of the rice transcriptome during Hg stress. Genes induced with short-term exposure represented functional categories of cell-wall formation, chemical detoxification, secondary metabolis  ...[more]

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