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学科主题: 生物化学
题名: β-1,3-glucan oligosaccharides triggered quicker defense reactions than high degree of polymerization in tobacco
作者: Fu YB(傅赟彬) ;  Yin H(尹恒) ;  Wang WX(王文霞) ;  Zhao XM(赵小明) ;  Du YG(杜昱光)
会议文集: Book of Abstracts
会议名称: Asian Congress on Biotechnology
会议日期: 2011-5-11
出版日期: 2011
会议地点: 上海
通讯作者: YuguangDu
出版者: 待补充
出版地: 待补充
合作性质: 墙报
部门归属: 1805
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
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.
英文摘要: 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.
内容类型: 会议论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/116084
Appears in Collections:中国科学院大连化学物理研究所_会议论文

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Recommended Citation:
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.
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