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学科主题: 物理化学
题名: Ultrastructural Study on Induced Resistance of Cucumber Plants against Sphaerotheca fuliginea by Oligochitosan
作者: Ma, Qing;  Zhao, Xiao-Ming1;  Sun, Hui;  Shang, Hong-Sheng
通讯作者: MaQ
关键词: cucumber ;  induced resistance ;  oligochitosan ;  Sphaerotheca fuliginea ;  ultrastructure
刊名: PLANT PATHOLOGY JOURNAL
发表日期: 2011-03-01
DOI: 10.5423/PPJ.2011.27.1.008
卷: 27, 期:1, 页:8-13
收录类别: SCI
文章类型: Article
部门归属: 18
项目归属: 1805
产权排名: 2,2
WOS标题词: Science & Technology ;  Life Sciences & Biomedicine
类目[WOS]: Agriculture, Multidisciplinary ;  Plant Sciences
摘要: Ultrastructural Study on Induced Resistance of Cucumber Plants against Sphaerotheca fuliginea by Oligochitosan
研究领域[WOS]: Agriculture ;  Plant Sciences
英文摘要: The induced resistance of cucumber leaves treated with oligochitosan to the infection of the cucumber powdery mildew, Sphaerotheca fuliginea, was investigated using transmission electron microscopy. The results showed that when the plants were treated with oligochitosan and challenged with inoculum, a significant decrease of the disease occurred. The mycelial development in the treated leaves was markedly inhibited. The cytoplasm of the powdery mildew mycelium was aggregated, with its organelles disintegrated and the cytoplasm collapsed. The protoplasm in haustoria became electron-dense. Haustoria became malformed, their organelles disintegrated, the hausterial wall thickened and eventually the whole complex necrotized. The host cells produced defence structures and materials associated with infection and a hypersensitive response. The host cell wall was thickened and deeply stained; several layers of papilla structure were produced under the cell wall; dark materials were deposited between the cell wall and plasmalemma; extrahaustorial plasmalemma was deeply stained and extrahaustorial matrix appositions had large deposits of electron-dense material; the cytoplasm was disordered, host organelles disintegrated and eventually the whole host cell disintegrated and necrotized.
关键词[WOS]: SYSTEMIC ACQUIRED-RESISTANCE ;  POWDERY MILDEW ;  DEFENSE REACTIONS ;  TOMATO PLANTS ;  ROOT-ROT ;  CHITOSAN ;  BARLEY ;  BENZOTHIADIAZOLE ;  INDUCTION ;  FUSARIUM
语种: 英语
WOS记录号: WOS:000288040200002
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/115528
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.NW A&F Univ, Educ Minist, State Key Lab Crop Stress Biol Arid Areas, Dept Plant Pathol, Yangling 712100, Shaanxi, Peoples R China
2.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian 116023, Liaoning, Peoples R China

Recommended Citation:
Ma, Qing,Zhao, Xiao-Ming,Sun, Hui,et al. Ultrastructural Study on Induced Resistance of Cucumber Plants against Sphaerotheca fuliginea by Oligochitosan[J]. PLANT PATHOLOGY JOURNAL,2011,27(1):8-13.
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