干旱区生态环境知识资源中心(Arid): Abscisic acid response to water status in Dactylis glomerata differs with expression of summer dormancy

Arid

DOI	10.1111/jac.12395
	Abscisic acid response to water status in Dactylis glomerata differs with expression of summer dormancy
	Norton, Mark R.1,2; Xian, Lisa 3; Kalic, Jesse N.; Hughes, Trijntje 4; Gubler, Frank 4
通讯作者	Norton, Mark R.
来源期刊	JOURNAL OF AGRONOMY AND CROP SCIENCE
ISSN	0931-2250
EISSN	1439-037X
出版年	2020
卷号	206 期号:5 页码:607-618
英文摘要	Summer dormancy confers superior drought survival in cool-season perennial grasses and is likely to be of increasing importance as climate change proceeds although relatively little is known about this trait. This paper explores the relationship between the level of abscisic acid (ABA), the expression of summer dormancy and the onset and relief of water deficit in cool-season perennial grasses. Three cultivars of Dactylis glomerata L. (cocksfoot) known to differ in expression of summer dormancy were grown in the field over summer and in the glasshouse over winter under water deficit or full irrigation. Hydration and osmotic potentials of basal tissues were measured to assess the level of water deficit, and endogenous ABA was determined in the tissues by monoclonal immunoassay analysis. In a winter trial, higher contents of ABA were present when plant water deficits became greater so that there were no differences between the cultivars in the concentrations of ABA observed. In a summer trial a short period of waterlogging caused water status to increase in all cultivars, although in the maritime cultivar Oasis this was also associated with a rise in ABA contents. In contrast, in the summer-dormant cultivar Kasbah, only low ABA concentrations were observed throughout the entire period whether waterlogged or in drying soil. Heightened ABA levels are not induced by water deficit when summer dormancy is expressed in Dactylis glomerata. This contrasted with those cultivars unable to express summer dormancy where particularly in early summer severe water deficit was associated with heightened ABA levels.
英文关键词	ABA cocksfoot drought tolerance orchardgrass osmotic potential plant water content
类型	Article
语种	英语
国家	Australia
收录类别	SCI-E
WOS记录号	WOS:000514753100001
WOS关键词	SIMULATED MIDSUMMER STORM ; PERENNIAL GRASSES ; DROUGHT SURVIVAL ; SEED DEVELOPMENT ; POA-BULBOSA ; ACCUMULATION ; ABA ; PERSISTENCE ; INDUCTION ; TOLERANCE
WOS类目	Agronomy
WOS研究方向	Agriculture
来源机构	Commonwealth Scientific and Industrial Research Organisation
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/314852
作者单位	1.NSW Dept Primary Ind, Agr Inst, PMB, Wagga Wagga, NSW 2650, Australia; 2.Graham Ctr Agr Innovat, Wagga Wagga, NSW, Australia; 3.Univ Queensland, Sch Agr & Food Sci, St Lucia, Qld, Australia; 4.CSIRO Agr & Food, Canberra, ACT, Australia
推荐引用方式 GB/T 7714	Norton, Mark R.,Xian, Lisa,Kalic, Jesse N.,et al. Abscisic acid response to water status in Dactylis glomerata differs with expression of summer dormancy[J]. Commonwealth Scientific and Industrial Research Organisation,2020,206(5):607-618.
APA	Norton, Mark R.,Xian, Lisa,Kalic, Jesse N.,Hughes, Trijntje,&Gubler, Frank.(2020).Abscisic acid response to water status in Dactylis glomerata differs with expression of summer dormancy.JOURNAL OF AGRONOMY AND CROP SCIENCE,206(5),607-618.
MLA	Norton, Mark R.,et al."Abscisic acid response to water status in Dactylis glomerata differs with expression of summer dormancy".JOURNAL OF AGRONOMY AND CROP SCIENCE 206.5(2020):607-618.