Arabidopsis YAK1 regulates abscisic acid response and drought resistance
Type
ArticleKAUST Department
Biological and Environmental Science and Engineering (BESE) DivisionCenter for Desert Agriculture
Plant Science
Plant Stress Genomics Research Lab
KAUST Grant Number
BAS/1/1007-01-01Date
2016-06-23Online Publication Date
2016-06-23Print Publication Date
2016-07Permanent link to this record
http://hdl.handle.net/10754/621429
Metadata
Show full item recordAbstract
Abscisic acid (ABA) is an important phytohormone that controls several plant processes such as seed germination, seedling growth, and abiotic stress response. Here, we report that AtYak1 plays an important role in ABA signaling and postgermination growth in Arabidopsis. AtYak1 knockout mutant plants were hyposensitive to ABA inhibition of seed germination, cotyledon greening, seedling growth, and stomatal movement. atyak1-1 mutant plants display reduced drought stress resistance, as evidenced by water loss rate and survival rate. Molecular genetic analysis revealed that AtYak1 deficiency led to elevated expression of stomatal-related gene, MYB60, and down-regulation of several stress-responsive genes. Altogether, these results indicate that AtYak1 plays a role as a positive regulator in ABA-mediated drought response in Arabidopsis. © 2016 Federation of European Biochemical Societies.Citation
Kim D, Ntui VO, Xiong L (2016) Arabidopsis YAK1 regulates abscisic acid response and drought resistance. FEBS Letters 590: 2201–2209. Available: http://dx.doi.org/10.1002/1873-3468.12234.Sponsors
This study was supported by King Abdullah University of Science and Technology (KAUST) BAS/1/1007-01-01 (to L.X.).Publisher
WileyJournal
FEBS LettersPubMed ID
27264339ae974a485f413a2113503eed53cd6c53
10.1002/1873-3468.12234
Scopus Count
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