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题名: Oligochitosan induces cell death and hydrogen peroxide accumulation in tobacco suspension cells
作者: Wang, Wenxia1, 2;  Li, Shuguang1;  Zhao, Xiaoming1;  Du, Yuguang1;  Lin, Bincheng1
通讯作者: 杜昱光
关键词: oligochitosan ;  apoptosis ;  hydrogen peroxide ;  plant defense responses
刊名: PESTICIDE BIOCHEMISTRY AND PHYSIOLOGY
发表日期: 2008-02-01
DOI: 10.1016/j.pestbp.2007.10.003
卷: 90, 期:2, 页:106-113
收录类别: SCI
文章类型: Article
部门归属: 18
项目归属: 1805,1807
产权排名: 1;1
WOS标题词: Science & Technology ;  Life Sciences & Biomedicine
类目[WOS]: Biochemistry & Molecular Biology ;  Entomology ;  Physiology
研究领域[WOS]: Biochemistry & Molecular Biology ;  Entomology ;  Physiology
英文摘要: Oligochitosan has been shown to induce several plant defense responses. In the present work, the effect of oligochitosan on tobacco cell survival was investigated. The results showed that oligochitosan caused tobacco cell death in a dose-dependent manner. About 40.6 % tobacco cells died when cultured for 72 h after 500 Vg ml(-1) oligochitosan treatment. Certain aspects of this cell death process appeared to be similar to apoptosis in animal cells. These included shrinkage of cytoplasm and condensation of chromatin. Oligochitosan also induced H2O2 accumulation in tobacco cell suspension culture. The role of H2O2 in the signal transduction that leads to cell death was investigated. Co-treatment of tobacco cells with oligochitosan and catalase inhibited H2O2 accumulation but did not inhibit the induction of cell death. The results suggested that apoptosis-like cell death of tobacco cells induced by oligochitosan is independent of H2O2 signal pathway. (c) 2007 Elsevier Inc. All rights reserved.
关键词[WOS]: DEFENSE GENE-EXPRESSION ;  OXIDATIVE BURST ;  BY-2 CELLS ;  CHITOSAN ;  RESISTANCE ;  PLANTS ;  INDUCTION ;  RESPONSES ;  RICE ;  ACTIVATION
语种: 英语
原文出处: 查看原文
WOS记录号: WOS:000253359400005
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/101361
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Chinese Acad Sci, Dalian Inst Chem Phys, Nat Prod & Glycoconjugate Res Grp, Dalian 116023, Peoples R China
2.Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China

Recommended Citation:
Wang, Wenxia,Li, Shuguang,Zhao, Xiaoming,et al. Oligochitosan induces cell death and hydrogen peroxide accumulation in tobacco suspension cells[J]. PESTICIDE BIOCHEMISTRY AND PHYSIOLOGY,2008,90(2):106-113.
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