Abscisic acid promotes accumulation of toxin ODAP in relation to free spermine level in grass pea seedlings (Lathyrus sativus L.)

	Abscisic acid promotes accumulation of toxin ODAP in relation to free spermine level in grass pea seedlings (Lathyrus sativus L.)
	Xiong, YC; Xing GM(邢更妹); Xing, GM; Li, FM; Wang, SM; Fan, XW; Li, ZX; Wang, YF
刊名	PLANT PHYSIOLOGY AND BIOCHEMISTRY
	2006
卷号	44 期号:2-3 页码:#REF!
关键词	grass pea beta-N-oxalyl-L-alpha polyamines drought stress beta-diaminopropionic acid (ODAP) abscisic acid (ABA)
通讯作者	Wang, YF (reprint author), Lanzhou Univ, MOE Key Lab Arid & Grassland Ecol, Tianshui Rd, Lanzhou 730000, Peoples R China.
英文摘要	Interrelationship among abscisic acid (ABA) content, accumulation of free polyamines and biosyntliesis of beta-N-oxalyl-L-alpha,beta-diaminopropionic acid (ODAP) was studied in grass pea (Lathyrus sativus L.) seedlings tinder drought stress induced by 10% polyethylene glycol (PEG6000). Increase of ABA content occurred prior to that of ODAP and polyamine contents, and was found significantly positive correlation between ABA content and ODAP content. Addition of exogenous ABA increased ODAP content in leaves. Oil the other hand. pretreatment with a-difluoromethylarginine (DFMA), a polyamine biosynthesis inhibitor, significantly suppressed the accumulation of free putrescine (Put), free spermidine (Spd) and free spermine (Spin), which in turn inhibited biosynthesis of ODAP in well-watered leaves. Meanwhile, addition of exogenous Put alleviated DFMA-induced inhibition oil the biosynthesis of Put and Spd, but did not affect the biosynthesis of Split and ODAP in well-watered leaves. Same result was also achieved in drought-stressed leaves. Increasing, accumulation of ODAP was significantly correlated with increasing Spm content (R = 0.7957**) but not with that of Spd and Put. Therefore. it call be argued that ABA stimulated the biosynthesis of ODAP simultaneously with increasing the level of free Spin under drought stress condition. (c) 2006 Elsevier SAS. All rights reserved.
学科主题	Plant Sciences
类目[WOS]	Plant Sciences
收录类别	SCI
WOS记录号	WOS:000238946000009
公开日期	2016-05-03
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/226599]
专题	高能物理研究所_多学科研究中心
推荐引用方式 GB/T 7714	Xiong, YC,Xing GM,Xing, GM,et al. Abscisic acid promotes accumulation of toxin ODAP in relation to free spermine level in grass pea seedlings (Lathyrus sativus L.)[J]. PLANT PHYSIOLOGY AND BIOCHEMISTRY,2006,44(2-3):#REF!.
APA	Xiong, YC.,邢更妹.,Xing, GM.,Li, FM.,Wang, SM.,...&Wang, YF.(2006).Abscisic acid promotes accumulation of toxin ODAP in relation to free spermine level in grass pea seedlings (Lathyrus sativus L.).PLANT PHYSIOLOGY AND BIOCHEMISTRY,44(2-3),#REF!.
MLA	Xiong, YC,et al."Abscisic acid promotes accumulation of toxin ODAP in relation to free spermine level in grass pea seedlings (Lathyrus sativus L.)".PLANT PHYSIOLOGY AND BIOCHEMISTRY 44.2-3(2006):#REF!.