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An RNA chaperone, AtCSP2, negatively regulates salt stress tolerance

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Title
An RNA chaperone, AtCSP2, negatively regulates salt stress tolerance
Author(s)
Sasaki K.; Liu Y.; Myung-Hee Kim; Imai R.
Publication Date
2015-08
Journal
PLANT SIGNALING AND BEHAVIOR, v.10, no.8, pp.e1042637 -
Publisher
TAYLOR & FRANCIS INC
Abstract
Cold shock domain (CSD) proteins are RNA chaperones that destabilize RNA secondary structures. Arabidopsis Cold Shock Domain Protein 2 (AtCSP2), one of the 4 CSD proteins (AtCSP1-AtCSP4) in Arabidopsis, is induced during cold acclimation but negatively regulates freezing tolerance. Here, we analyzed the function of AtCSP2 in salt stress tolerance. A double mutant, with reduced AtCSP2 and no AtCSP4 expression (atcsp2–3 atcsp4–1), displayed higher survival rates after salt stress. In addition, overexpression of AtCSP2 resulted in reduced salt stress tolerance. These data demonstrate that AtCSP2 acts as a negative regulator of salt stress tolerance in Arabidopsis. © 2015 Taylor and Francis Group, LLC
URI
https://pr.ibs.re.kr/handle/8788114/2386
ISSN
1559-2316
Appears in Collections:
Center for Plant Aging Research (식물 노화·수명 연구단) > Journal Papers (저널논문)
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