NDLI: Expression analysis and functional characterization of a cold-responsive gene COR15A from Arabidopsis thaliana

Content Provider	Springer Nature Link
Author	Liu, Dong Li, Weichun Cheng, Jianfeng Hou, Ling
Copyright Year	2014
Abstract	The cold-responsive (COR) genes play an important role in cold acclimation of higher plants. Here, a tight correlation between chloroplast functionality and COR15A expression, and the functional characterization of Arabidopsis COR15A involved in salt/osmotic stress, were revealed. COR15A gene is light inducible and expressed in light-grown seedlings. The expression level of COR15A was reduced when chloroplasts were damaged by norflurazon treatment. By using several albino mutants, seca1, secy1, and tic20, all of which exhibited severe defects in both structure and function of chloroplast, it was shown that the accumulation of COR15A mRNA depends on chloroplast functionality. Real-time RT-PCR and GUS-staining assays demonstrated that COR15A was induced by salt/osmotic stress partially via ABA. Overexpression of COR15A in Arabidopsis resulted in the seedlings displaying hypersensitivity to salt/osmotic stress. All these results suggest that plant acquire the ability to fully express COR15A only after the development of functional chloroplasts, COR15A may be involved in response to salt/osmotic stress during early stages of plant development.
Starting Page	2421
Ending Page	2432
Page Count	12
File Format	PDF
ISSN	01375881
Journal	Acta Physiologiae Plantarum
Volume Number	36
Issue Number	9
e-ISSN	18611664
Language	English
Publisher	Springer Berlin Heidelberg
Publisher Date	2014-07-05
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Arabidopsis COR15A Chloroplast functionality Salt/osmotic stress Plant Physiology Plant Genetics & Genomics Plant Biochemistry Plant Pathology Plant Anatomy/Development Agriculture
Content Type	Text
Resource Type	Article
Subject	Physiology Plant Science Agronomy and Crop Science

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