Cytokinin oxidase PpCKX1 plays regulatory roles in development and enhances dehydration and salt tolerance in Physcomitrella patens

doi:10.1007/s00299-019-02500-3

KMS > 免疫化学研究所 > 特聘教授组 > Nicola Elvassore组

	Cytokinin oxidase PpCKX1 plays regulatory roles in development and enhances dehydration and salt tolerance in Physcomitrella patens
	Hyoung, Sujin 1; Cho, Sung Hyun 2; Chung, Joo Hee 3; So, Won Mi 1; Cui, Mei Hua4 ; Shin, Jeong Sheop 1
	2019-12-20
发表期刊	PLANT CELL REPORTS
ISSN	0721-7714
EISSN	1432-203X
发表状态	已发表
DOI	10.1007/s00299-019-02500-3
摘要	Key message PpCKX1 localizes to vacuoles and is dominantly expressed in the stem cells. PpCKX1 regulates developmental changes with increased growth of the rhizoid and enhances dehydration and salt tolerance. Cytokinins (CKs) are plant hormones that regulate plant development as well as many physiological processes, such as cell division, leaf senescence, control of shoot/root ratio, and reproductive competence. Cytokinin oxidases/dehydrogenases (CKXs) control CK concentrations by degradation, and thereby influence plant growth and development. In the moss Physcomitrella patens, an evolutionarily early divergent plant, we identified six putative CKXs that, by phylogenetic analysis, form a monophyletic clade. We also observed that ProPpCKX1:GUS is expressed specifically in the stem cells and surrounding cells and that CKX1 localizes to vacuoles, as indicated by Pro35S:PpCKX1-smGFP. Under normal growth conditions, overexpression of PpCKX1 caused many phenotypic changes at different developmental stages, and we suspected that increased growth of the rhizoid could affect those changes. In addition, we present evidence that the PpCKX1-overexpressor plants show enhanced dehydration and salt stress tolerance. Taken together, we suggest that PpCKX1 plays regulatory roles in development and adaptation to abiotic stresses in this evolutionarily early land plant species.
关键词	Abiotic stress tolerance Cytokinin oxidase Development Evolution Hormone Physcomitrella patens
收录类别	SCI ; SCIE
语种	英语
资助项目	Next-Generation BioGreen 21 Program - Rural Development Administration, Republic of Korea[PJ011065] ; Next-Generation BioGreen 21 Program - Rural Development Administration, Republic of Korea[PJ01367001]
WOS研究方向	Plant Sciences
WOS类目	Plant Sciences
WOS记录号	WOS:000503680200001
出版者	SPRINGER
WOS关键词	MECHANISM CONTROLS ; ARABIDOPSIS ; METABOLISM ; EXPRESSION ; EVOLUTION ; DROUGHT ; GROWTH ; GENES ; CELLS ; RICE
原始文献类型	Article ; Early Access
引用统计
文献类型	期刊论文
条目标识符	https://kms.shanghaitech.edu.cn/handle/2MSLDSTB/104998
专题	免疫化学研究所_特聘教授组_生物工程学实验室免疫化学研究所_特聘教授组_干细胞生物学实验室
通讯作者	Shin, Jeong Sheop
作者单位	1.Korea Univ, Div Life Sci, Seoul 02841, South Korea 2.Penn State Univ, Dept Biochem & Mol Biol, University Pk, PA 16802 USA 3.Korea Basic Sci Inst, Seoul Ctr, Seoul 02841, South Korea 4.Shanghai Tech Univ, SIAIS, Shanghai, Peoples R China
推荐引用方式 GB/T 7714	Hyoung, Sujin,Cho, Sung Hyun,Chung, Joo Hee,et al. Cytokinin oxidase PpCKX1 plays regulatory roles in development and enhances dehydration and salt tolerance in Physcomitrella patens[J]. PLANT CELL REPORTS,2019.
APA	Hyoung, Sujin,Cho, Sung Hyun,Chung, Joo Hee,So, Won Mi,Cui, Mei Hua,&Shin, Jeong Sheop.(2019).Cytokinin oxidase PpCKX1 plays regulatory roles in development and enhances dehydration and salt tolerance in Physcomitrella patens.PLANT CELL REPORTS.
MLA	Hyoung, Sujin,et al."Cytokinin oxidase PpCKX1 plays regulatory roles in development and enhances dehydration and salt tolerance in Physcomitrella patens".PLANT CELL REPORTS (2019).