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题名: Induction of antiviral resistance and stimulary effect by oligochitosan in tobacco
作者: Zhao, Xiaoming;  She, Xiaoping;  Du, Yuguang;  Liang, Xinmiao
关键词: oligochitosan ;  tobacco mosaic virus ;  plant protection ;  nitric oxide ;  hydrogen peroxide
刊名: PESTICIDE BIOCHEMISTRY AND PHYSIOLOGY
发表日期: 2007
DOI: 10.1016/j.pestbp.2006.06.006
卷: 87, 期:1, 页:78-84
收录类别: SCI
文章类型: Article
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 was applied by spraying it on tobacco leaves for inhibition of tobacco mosaic virus (TMV). The maximum inhibition of TMV by oligochitosan was observed when inoculation occurred at 24 h after spraying 50 mu g ml(-1) oligochitosan. The production of H(2)O(2) and NO in epidermal tobacco cells induced by oligochitosan was investigated by epidermal strip bioassay and LSCM, using cell permeable fluorophore diaminofluorescein diacetate (DAF-2D) and 2',7'-dichlorofluorescin diacetate (H(2)DCF-DA), respectively. Epidermal tobacco cells treated with oligochitosan resulted in a strong increase of intracellular NO and H(2)O(2). Oligochitosan and NO donor sodium nitroprusside (SNP) induced the defense reaction against tobacco mosaic virus (TMV), and increased phenylalanine ammonia-lyase (PAL) activity. Co-treatment of the tobacco cells with oligochitosan and NO scavenger CPTIO blocked the inducing resistance. The results indicated that the defense response induced by oligochitosan was connected with NO pathway. (c) 2006 Elsevier Inc. All rights reserved.
关键词[WOS]: NITRIC-OXIDE ;  DISEASE-RESISTANCE ;  DEFENSE RESPONSES ;  PLANT ;  CHITOSAN ;  CHITIN
语种: 英语
WOS记录号: WOS:000242741800011
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/140462
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, Dalian 116023, Peoples R China
2.Shaanxi Normal Univ, Coll Life Sci, Xian 710062, Peoples R China
3.Chinese Acad Sci, Grad Sch, Beijing 100864, Peoples R China

Recommended Citation:
Zhao, Xiaoming,She, Xiaoping,Du, Yuguang,et al. Induction of antiviral resistance and stimulary effect by oligochitosan in tobacco[J]. PESTICIDE BIOCHEMISTRY AND PHYSIOLOGY,2007,87(1):78-84.
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