Stress responsive gene CIPK14 is involved in phytochrome A-mediated far-red light inhibition of greening in Arabidopsis
In this study, we show that CIPK14 , a stress responsive CBL-interacting protein kinase gene, is involved in phytochrome A-mediated far-red light inhibition of greening in Arabidopsis seedlings. The CIPK14-impairment mutant cipk14 grown in continuous far-red (FR) light did not show greening when exp...
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Published in | Science China. Life sciences Vol. 53; no. 11; pp. 1307 - 1314 |
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Main Authors | , , , , , , |
Format | Journal Article |
Language | English |
Published |
Beijing
Science China Press
01.11.2010
Springer Nature B.V |
Subjects | |
Online Access | Get full text |
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Summary: | In this study, we show that
CIPK14
, a stress responsive CBL-interacting protein kinase gene, is involved in phytochrome A-mediated far-red light inhibition of greening in
Arabidopsis
seedlings. The CIPK14-impairment mutant
cipk14
grown in continuous far-red (FR) light did not show greening when exposed to white light illumination for 15 h. By contrast, the FR-grown phytochrome A null mutant
phyA
greened within 0.5 h of exposure to white light. Although greening of Col-4 (wild-type) was not completely abolished by FR, it exhibited a significantly decreased greening capacity compared with that of
phyA
. Further analyses demonstrated that the expression of protochlorophyllide reductase (
POR
) genes was correlated with the greening ability of the genotypes. In addition,
CIPK14
appeared to be regulated by both the circadian clock and PhyA. Taken together, these results suggest that CIPK14 plays a role in PhyA-mediated FR inhibition of seedling greening, and that a Ca-related kinase may be involved in a previously undefined branch point in the phytochrome A signaling pathway. |
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Bibliography: | ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23 ObjectType-Article-2 ObjectType-Feature-1 |
ISSN: | 1674-7305 1869-1889 |
DOI: | 10.1007/s11427-010-4078-1 |