TY - JOUR
T1 - Arabidopsis YAK1 regulates abscisic acid response and drought resistance
AU - Kim, Dongjin
AU - Ntui, Valentine Otang
AU - Xiong, Liming
N1 - KAUST Repository Item: Exported on 2020-10-01
Acknowledged KAUST grant number(s): BAS/1/1007-01-01
Acknowledgements: This study was supported by King Abdullah University of Science and Technology (KAUST) BAS/1/1007-01-01 (to L.X.).
PY - 2016/6/23
Y1 - 2016/6/23
N2 - 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.
AB - 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.
UR - http://hdl.handle.net/10754/621429
UR - http://doi.wiley.com/10.1002/1873-3468.12234
UR - http://www.scopus.com/inward/record.url?scp=84979523707&partnerID=8YFLogxK
U2 - 10.1002/1873-3468.12234
DO - 10.1002/1873-3468.12234
M3 - Article
C2 - 27264339
SN - 0014-5793
VL - 590
SP - 2201
EP - 2209
JO - FEBS Letters
JF - FEBS Letters
IS - 14
ER -