Ultrastructural Study on Induced Resistance of Cucumber Plants against Sphaerotheca fuliginea by Oligochitosan

	Ultrastructural Study on Induced Resistance of Cucumber Plants against Sphaerotheca fuliginea by Oligochitosan
	Ma, Qing ; Zhao, Xiao-Ming 1; Sun, Hui ; Shang, Hong-Sheng
刊名	plant pathology journal
	2011-03-01
卷号	27 期号:1 页码:8-13
关键词	cucumber induced resistance oligochitosan Sphaerotheca fuliginea ultrastructure
ISSN号	1598-2254
通讯作者	maq
产权排序	2,2
中文摘要	ultrastructural study on induced resistance of cucumber plants against sphaerotheca fuliginea by oligochitosan
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.
学科主题	物理化学
WOS标题词	science & technology ; life sciences & biomedicine
类目[WOS]	agriculture, multidisciplinary ; plant sciences
研究领域[WOS]	agriculture ; plant sciences
关键词[WOS]	systemic acquired-resistance ; powdery mildew ; defense reactions ; tomato plants ; root-rot ; chitosan ; barley ; benzothiadiazole ; induction ; fusarium
收录类别	SCI
语种	英语
WOS记录号	WOS:000288040200002
公开日期	2012-07-09
内容类型	期刊论文
源URL	[http://159.226.238.44/handle/321008/115528]
专题	大连化学物理研究所_中国科学院大连化学物理研究所
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
推荐引用方式 GB/T 7714	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.
APA	Ma, Qing,Zhao, Xiao-Ming,Sun, Hui,&Shang, Hong-Sheng.(2011).Ultrastructural Study on Induced Resistance of Cucumber Plants against Sphaerotheca fuliginea by Oligochitosan.plant pathology journal,27(1),8-13.
MLA	Ma, Qing,et al."Ultrastructural Study on Induced Resistance of Cucumber Plants against Sphaerotheca fuliginea by Oligochitosan".plant pathology journal 27.1(2011):8-13.