干旱区生态环境知识资源中心(Arid): Exogenous methyl jasmonate promotes salt stress-induced growth inhibition and prioritizes defense response of Nitraria tangutorum Bobr.

Arid

DOI	10.1111/ppl.13314
	Exogenous methyl jasmonate promotes salt stress-induced growth inhibition and prioritizes defense response of Nitraria tangutorum Bobr.
	Gao, Ziqi; Gao, Shuai; Li, Pengxuan; Zhang, Yan; Ma, Binjie; Wang, Yingchun
通讯作者	Wang, YC (corresponding author), State Key Lab Reprod Regulat & Breeding Grassland, Hohhot 010010, Peoples R China.
来源期刊	PHYSIOLOGIA PLANTARUM
ISSN	0031-9317
EISSN	1399-3054
出版年	2021
卷号	172 期号:1 页码:162-175
英文摘要	Jasmonates (JAs) play a key role in the regulation of growth and the defense response to environmental stresses. JAs inhibit plant growth and promote defense response. However, their roles in desert halophyte in the response to salt stress remain poorly understood. The effects of the combination of methyl jasmonate (MeJA) and NaCl treatment (the MeN condition) on the growth regulation and defense response of Nitraria tangutorum seedlings were investigated. Compared with NaCl treatment alone, exogenous MeJA aggravated the growth inhibition of seedlings by antagonizing to growth-related hormones and suppressing the transcript levels of these hormones-responsive genes, including gibberellin (GA)-responsive NtPIF3, NtGAST1, NtGSAT4, and cytokinin (CYT)-responsive NtARR1, NtARR11, NtARR12. Meanwhile, exogenous MeJA enhanced defense response and alleviated the stress damage by increasing antioxidase activity and antioxidant content, accumulating more osmolytes, maintaining lower Na+/K+ ratios in shoots and higher Na+ efflux rates in roots of plants. In addition, exogenous MeJA increased the contents of endogenous JA and ABA, and the transcript levels of genes involved in their biosynthesis and responsiveness, thereby further regulating the transcript levels of defense response genes. These findings suggest that exogenous MeJA increases salt stress-induced growth inhibition and prioritizes the defensive responses (e.g. antioxidant defense, osmotic adjustment, and ion homeostasis) of N. tangutorum. These effects may be related to the amplification of jasmonic acid (JA) and abscisic acid (ABA) signals.
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000607115400001
WOS关键词	SIGNALING PATHWAYS ; WHEAT SEEDLINGS ; SALICYLIC-ACID ; PLANT HORMONES ; PROLINE ; BIOSYNTHESIS ; ACCUMULATION ; MECHANISMS ; TOLERANCE ; GIBBERELLIN
WOS类目	Plant Sciences
WOS研究方向	Plant Sciences
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/351315
作者单位	[Gao, Ziqi; Gao, Shuai; Li, Pengxuan; Zhang, Yan; Ma, Binjie; Wang, Yingchun] Inner Mongolia Univ, State Key Lab Reprod Regulat & Breeding Grassland, Hohhot, Peoples R China; [Gao, Ziqi; Gao, Shuai; Li, Pengxuan; Zhang, Yan; Ma, Binjie; Wang, Yingchun] Inner Mongolia Univ, Key Lab Herbage & Endem Crop Biotechnol, Hohhot, Peoples R China; [Gao, Ziqi; Gao, Shuai; Li, Pengxuan; Zhang, Yan; Ma, Binjie; Wang, Yingchun] Inner Mongolia Univ, Sch Life Sci, Hohhot, Peoples R China
推荐引用方式 GB/T 7714	Gao, Ziqi,Gao, Shuai,Li, Pengxuan,et al. Exogenous methyl jasmonate promotes salt stress-induced growth inhibition and prioritizes defense response of Nitraria tangutorum Bobr.[J],2021,172(1):162-175.
APA	Gao, Ziqi,Gao, Shuai,Li, Pengxuan,Zhang, Yan,Ma, Binjie,&Wang, Yingchun.(2021).Exogenous methyl jasmonate promotes salt stress-induced growth inhibition and prioritizes defense response of Nitraria tangutorum Bobr..PHYSIOLOGIA PLANTARUM,172(1),162-175.
MLA	Gao, Ziqi,et al."Exogenous methyl jasmonate promotes salt stress-induced growth inhibition and prioritizes defense response of Nitraria tangutorum Bobr.".PHYSIOLOGIA PLANTARUM 172.1(2021):162-175.