DICP OpenIR
Subject Area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
Source PublicationBook of Abstracts
Conference NameAsian Congress on Biotechnology
Conference Date2011-5-11
2011
Conference Place上海
Pages219-0
Publisher待补充
Publication Place待补充
Cooperation Status墙报
Department1805
Funding Organization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
AbstractChemically 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.
Document Type会议论文
Identifierhttp://cas-ir.dicp.ac.cn/handle/321008/116084
Collection中国科学院大连化学物理研究所
Corresponding AuthorYuguangDu
Recommended Citation
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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