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学科主题生物化学
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); YuguangDu
会议文集Book of Abstracts
会议名称Asian Congress on Biotechnology
会议日期2011-5-11
2011
会议地点上海
页码219-0
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
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.; 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.
文献类型会议论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/116084
专题中国科学院大连化学物理研究所
通讯作者YuguangDu
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]. 待补充:待补充,2011:219-0.
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