eHALOPH - Halophytes Database

Publication Type	J
Authors	Li, SC; Cui, LL; Zhang, YJ; Wang, YW; Mao, PS
Author Full Name	Li, Shucheng; Cui, Linlin; Zhang, Yujuan; Wang, Yunwen; Mao, Peisheng
Title	The Variation Tendency of Polyamines Forms and Components of Polyamine Metabolism in Zoysiagrass (Zoysia japonica Steud.) to Salt Stress with Exogenous Spermidine Application
Source	FRONTIERS IN PHYSIOLOGY
Language	English
Document Type	Article
Author Keywords	zoysiagrass; components; polyamine metabolism; dynamic variation; exogenous spermidine; salinity stress
Keywords Plus	ARGININE DECARBOXYLASE; TOLERANCE; EXPRESSION; RESPONSES; SALINITY; PLANTS; BIOSYNTHESIS; DROUGHT; PATHWAY; GROWTH
Abstract	To understand dynamic changes in polyamines (PAs) forms and components of polyamine metabolism in zoysiagrass (Zoysia japonica Steud.) response to salt stress with exogenous spermidine (Spd) application, two Chinese zoysia cultivars, z081 and z057, were exposed to sodium chloride stress for 2, 4, 6, and 8 days. The z057 cultivar possesses higher salinity tolerance than the z081 cultivar. Salt stress decreased the zoysiagrass fresh weight (FW) and increased free Spd and spermine (Spm) levels and soluble and insoluble putrescine (Put), Spd and Spm levels in both cultivars. Moreover, salt stress enhanced the activities of arginine decarboxylase (ADC), ornithine decarboxylase (ODC), S-adenosylmethionine decarboxylase (SAMDC), and diamine oxidase (DAO). Exogenous Spd increased PA metabolism and ADC, SAMDC, and DAO activities and decreased free Put levels under salt stress conditions in both cultivars. In addition, structural equation modeling (SEM) showed that ODC, SAMDC, and DAO contributed to PA metabolism, and endogenous Spd levels also contributed to endogenous Spm levels. Free PAs may be the primary factor influencing the variation of other PA forms. SEM also indicated that ADC and polyamine oxidase (PAO) play a limited role in enhancing zoysia salt tolerance via PA metabolism under salt stress.
Author Address	[Li, Shucheng; Cui, Linlin; Wang, Yunwen; Mao, Peisheng] China Agr Univ, Dept Grassland Sci, Beijing, Peoples R China; [Zhang, Yujuan] Chinese Acad Agr Sci, Inst Grassland Sci, Hohhot, Peoples R China
Reprint Address	Wang, YW; Mao, PS (reprint author), China Agr Univ, Dept Grassland Sci, Beijing, Peoples R China.
E-mail Address	wyw@cau.edu.cn; 97034h@cau.edu.cn
Funding Agency and Grant Number	Ministry of Agriculture, Beijing Common Construction Project; China Agriculture Research System [(CARS-35).]
Funding Text	This study was supported by earmarked fund for the Special Financial Project from Ministry of Agriculture, Beijing Common Construction Project and China Agriculture Research System (CARS-35).
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Cited Reference Count	48
Publisher	FRONTIERS MEDIA SA
Publisher City	LAUSANNE
Publisher Address	PO BOX 110, EPFL INNOVATION PARK, BUILDING I, LAUSANNE, 1015, SWITZERLAND
ISSN	1664-042X
29-Character Source Abbreviation	FRONT PHYSIOL
ISO Source Abbreviation	Front. Physiol.
Publication Date	APR 6
Year Published	2017
Volume	8
Article Number	208
Digital Object Identifier (DOI)	10.3389/fphys.2017.00208
Page Count	10
Web of Science Category	Physiology
Subject Category	Physiology
Document Delivery Number	ER2QL
Unique Article Identifier	WOS:000398638800004
Plants associated with this reference	Zoysia japonica