miR398在植物逆境胁迫应答中的作用

doi:10.3724/SP.J.1005.2010.00129

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HEREDITAS ›› 2010, Vol. 32 ›› Issue (2): 129-134.doi: 10.3724/SP.J.1005.2010.00129

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The role of miR398 in plant stress responses

DING Yan-Fei¹, WANG Guang-Yue², FU Ya-Ping³, ZHU Cheng¹

1. College of Life Sciences, Zhejiang University, Hangzhou 310029, China; 2. College of Forest and Biotechnology, Zhejiang Forestry University, Lin'an 311300, China; 3. China National Rice Research Institute, Hangzhou 310006, China

Received:2009-06-13 Revised:2009-06-26 Online:2010-02-20 Published:2010-01-15
Contact: ZHU Cheng E-mail:pzhch@zju.edu.cn

Abstract

Abstract:

MicroRNAs (miRNAs) are a new class of small RNAs, which act as post-transcriptional negative regulators of gene expression. Plant miRNAs are important in the regulation of plant growth, development and in response to various abiotic and biotic stresses. miR398 is the first reported miRNA to be down-regulated by oxidative stresses. miR398 plays an impor-tant role in stresses, such as regulating copper homeostasis, in response to abiotic stresses including heavy metals, sucrose, and ozone and biotic stresses via down-regulating the expression of Cu/Zn-superoxide dismutase (CSD). This review fo-cused on the crucial role of miR398 in regulation of different stresses and the transcriptional regulation of MIR398 gene.

Key words: gene expression regulation, stress responses, miR398, abiotic stress, biotic stress

DING Yan-Fei, WANG Guang-Yue, FU E-Ping, SHU Cheng. The role of miR398 in plant stress responses[J]. HEREDITAS, 2010, 32(2): 129-134.

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