不同硅制剂水培处理对小麦白粉病的作用效果及其机理的初步研究

被引：5

作者：

刘彩云 ^{[1
,2
,3
]}

常志隆 ^{[2
]}

张福锁 ^{[1
]}

周益林 ^{[3
]}

王荔军 ^{[1
]}

段霞瑜 ^{[3
]}

沈慧敏 ^{[4
]}

机构：

[1] 中国农业大学植物营养系

[2] 山东潍坊学院生物工程学院

[3] 中国农业科学院植物保护研究所植物病虫害生物学国家重点实验室

[4] 甘肃农业大学草业学院

来源：

植物病理学报 | 2010年 / 40卷 / 02期

关键词：

different silicon compounds; solution culture; wheat powdery mildew; control efficacy; deposition;

D O I：

10.13926/j.cnki.apps.2010.02.011

中图分类号：

S435.121 [病害];

学科分类号：

摘要：

The effect of silica nano-particles,tetraethyl orthosilicate (TEOS) and sodium silicate in solution culture on wheat powdery mildew and its action mechanism to pathogen attack were studied. The results showed that wheat seedlings cultured in nutrient solution with silicon compounds alleviated wheat powdery mil-dew,the control efficacies of TEOS and sodium silicate treatments were 54.08% and 51.36%,respectively,but that of silica nano-particles treatment was only 1.02%. Scanning electron micrograph and X-ray energy dispersive analysis (SEM-EDX) showed that wheat leaves cultured in nutrient solution with TEOS and sodium silicate had more silicon deposition than that of silica nano-particles. It indicated that wheat possessed the equal good imbibe ability to TEOS and sodium silicate,but poor to silicate nano-particles. When wheat leaves were infected with Blumeria graminisf.sptritici,silicon might has a physical prohibition effect to pathogen spore penetration.

引用

页码：222 / 224

页数：3

共 3 条

[1] The relationship between insoluble silicon and success or failure of attempted primary penetration by powdery mildew (Elysiphe graminis) germlings of barley. Carver T L W,Zeyen R J,Ahlst G G. Physiological and Molecular Plant Pathology . 1987
[2] Soluble silicon: its role in crop and disease management of greenhouse crops. Belanger R R,Bowen P A,Ehret D L,et al. Plant Disease . 1995
[3] Silicon-mediated accumulation of flavonoid phytoalexins in cucumber. Fawe A,Abowzaid M,Menzies J G,et al. Phytopathology . 1998

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