Arabidopsis YAK1 regulates abscisic acid response and drought resistance

Dongjin Kim; Valentine Otang Ntui; Liming Xiong

doi:10.1002/1873-3468.12234

Arabidopsis YAK1 regulates abscisic acid response and drought resistance

Dongjin Kim^*, Valentine Otang Ntui, Liming Xiong^*

^*Corresponding author for this work

Department of Biology

Research output: Contribution to journal › Journal article › peer-review

20 Citations (Scopus)

Abstract

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.

Original language	English
Pages (from-to)	2201-2209
Number of pages	9
Journal	FEBS Letters
Volume	590
Issue number	14
DOIs	https://doi.org/10.1002/1873-3468.12234
Publication status	Published - 1 Jul 2016

Scopus Subject Areas

Biophysics
Structural Biology
Biochemistry
Molecular Biology
Genetics
Cell Biology

User-Defined Keywords

abiotic stress
abscisic acid
Arabidopsis Yak1

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10.1002/1873-3468.12234

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title = "Arabidopsis YAK1 regulates abscisic acid response and drought resistance",

abstract = "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.",

keywords = "abiotic stress, abscisic acid, Arabidopsis Yak1",

author = "Dongjin Kim and Ntui, {Valentine Otang} and Liming Xiong",

note = "Funding Information: This study was supported by King Abdullah University of Science and Technology (KAUST) BAS/1/1007-01-01 (to L.X.). Publisher Copyright: {\textcopyright} 2016 Federation of European Biochemical Societies",

year = "2016",

month = jul,

day = "1",

doi = "10.1002/1873-3468.12234",

language = "English",

volume = "590",

pages = "2201--2209",

journal = "FEBS Letters",

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number = "14",

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TY - JOUR

T1 - Arabidopsis YAK1 regulates abscisic acid response and drought resistance

AU - Kim, Dongjin

AU - Ntui, Valentine Otang

AU - Xiong, Liming

N1 - Funding Information: This study was supported by King Abdullah University of Science and Technology (KAUST) BAS/1/1007-01-01 (to L.X.). Publisher Copyright: © 2016 Federation of European Biochemical Societies

PY - 2016/7/1

Y1 - 2016/7/1

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.

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.

KW - abiotic stress

KW - abscisic acid

KW - Arabidopsis Yak1

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 - Journal article

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AN - SCOPUS:84979523707

SN - 0014-5793

VL - 590

SP - 2201

EP - 2209

JO - FEBS Letters

JF - FEBS Letters

IS - 14

ER -

Arabidopsis YAK1 regulates abscisic acid response and drought resistance

Abstract

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