β-1,3-glucan oligosaccharides triggered quicker defense reactions than high degree of polymerization in tobacco

	β-1,3-glucan oligosaccharides triggered quicker defense reactions than high degree of polymerization in tobacco
	Fu YB(傅赟彬) ; Yin H(尹恒) ; Wang WX(王文霞) ; Zhao XM(赵小明) ; Du YG(杜昱光)
	2011
会议名称	Asian Congress on Biotechnology
会议日期	2011-5-11
会议地点	上海
页码	219-0
通讯作者	YuguangDu
中文摘要	Chemically hydrolyzed curdlan oligosaccharides (CRDO), low degree of polymerization (DP) of β-1,3-glucan, were prepared to compare with Laminaran (Lam) with high DP for discussing the difference on defense-inducing activity in tobacco. Fast response defenses such as extracellular pH shift, H2O2 production, nitric oxide （NO） release and stomatal movement under light as well as the protection against tobacco mosaic virus (TMV) were performed. CRDO triggered faster extracellular alkalinization than Lam. Refractory states analysis showed there existed different perception modes between β-1,3-glucan and chitosan oligosaccharides (COS). Elicitors induced cells to generate NO probably via nitric oxide synthase (NOS) pathway. Moreover, CRDO exhibited more intensive than Lam in stomatal movement. However, protection against TMV implied Lam played a longer term role than CRDO in defense responses. Therefore, we concluded β-1,3-glucan with low DP played a vital role in rapid responses, whereas high DP β-1,3-glucan displayed durable effects.
合作状况	墙报
会议主办者	亚洲生物技术联合会（AFOB）、上海交通大学、华东理工大学、湖北工业大学、山东大学
会议录	Book of Abstracts
会议录出版者	待补充
会议录出版地	待补充
学科主题	生物化学
内容类型	会议论文
源URL	[http://159.226.238.44/handle/321008/116084]
专题	大连化学物理研究所_中国科学院大连化学物理研究所
推荐引用方式 GB/T 7714	Fu YB,Yin H,Wang WX,et al. β-1,3-glucan oligosaccharides triggered quicker defense reactions than high degree of polymerization in tobacco[C]. 见:Asian Congress on Biotechnology. 上海. 2011-5-11.