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KMID : 0368420120550060489
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Journal of Plant Biology
2012 Volume.55 No. 6 p.489 ~ p.497
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Identification and expression analysis of hypoxia stress inducible CCCH-type zinc finger protein genes in rice
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Pandey Dev Mani
Kim Seong-Ryong
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Abstract
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Flooding is one of the threatening abiotic stresses in recent global warming. In order to understand flooding-caused low oxygen stress response at molecular level, microarray-linked isolation of the hypoxia inducible genes were conducted. Seventeen genes that were up-regulated by the factor of more than 3 fold, were confirmed as hypoxia inducible. Among them, a CCCH-type zinc finger protein gene, OsCCCH-Zn-1, was further characterized due to its novelty as a hypoxia-inducible zinc finger gene as well as its significant induction by hypoxia stress. OsCCCH-Zn-1 was also up-regulated by submergence, ABA and drought stresses. In the normal growth condition, OsCCCH-Zn-1 was expressed in the flag leaf sheath, highest internode and developing seeds. In rice, at least 12 CCCH-type zinc finger protein genes were retrieved by in silico analysis. Among these, we found that the zinc finger genes OsCCCH-Zn-1, -2, -6 were induced by hypoxia stress.
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KEYWORD
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CCCH-type zinc finger genes, Hypoxia stress, Microarray, Rice
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