|本期目录/Table of Contents|

[1]王美芳,陈巨莲,程登发,等.小麦叶片表面蜡质及其与品种抗蚜性的关系[J].应用与环境生物学报,2008,14(03):341-346.
 WANG Meifang,et al..Epicuticular Wax on Wheat Leaves and Its Relationship with[J].Chinese Journal of Applied & Environmental Biology,2008,14(03):341-346.
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小麦叶片表面蜡质及其与品种抗蚜性的关系()
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《应用与环境生物学报》[ISSN:1006-687X/CN:51-1482/Q]

卷:
14卷
期数:
2008年03期
页码:
341-346
栏目:
综述
出版日期:
2008-03-25

文章信息/Info

Title:
Epicuticular Wax on Wheat Leaves and Its Relationship with
作者:
王美芳陈巨莲程登发原国辉
Author(s):
WANG Meifang et al.
(1State Key Laboratory for Biology of Plant Disease and Insect Pests, Institute of Plant Protection,Chinese Academy of Agricultural Sciences, Beijing 100094, China) (2Wheat Institute, Henan Academy of Agricultural Sciences, 3College of Plant Protection, Henan Agricultural University, Zhengzhou 450002, China)
关键词:
关键词 小麦叶表蜡质麦蚜抗虫性 BSTFA气相色谱-质谱联用仪
Keywords:
Keywords wheat epicuticular wax on leaves wheat aphid resistance to pest insect BSTFA GCMS
Abstract:
Abstract Based on GCMS, a method for extraction, isolation and identification of epicuticular wax on wheat leaves was established. The epicuticular wax components from 16 varieties at different resistant levels to aphids were measured, thus the dynamic changes and trends among the different cultivars and at different growth stages were preliminarily analyzed. The major results were obtained as: 30 compounds of epicuticular wax were isolated and identified from wheat leaf extraction, including 9 alkanes, 7 fatty alcohols, 10 fatty acids, 2 aldehydes and 2 diketones. By using the value of peak area, the contents of the components were calculated and analyzed. The result showed that the cascade ranks of the contents were fatty alcohol > alkanes > fatty acids and aldehyde > diketone. The fatty alcohol was the major component of the epicuticular wax, and it accounted for 68.1% and octacosanol accounted for 50.14% of the fatty alcohol. With analysis and comparison of the components of epicuticular wax in the aphidresistant and aphidsusceptible wheat varieties, it was found there were no obvious differences among wheat varieties, but there were significant differences in the contents of epicuticular wax components among wheat varieties. There was a trend that the content of fatty alcohols, fatty acids and aldehydes increased with the rising of wheat aphidsresistance level. In the meantime, the contents of some components of the epicuticular wax on wheat leaves varied significantly at different growth stages. At ear sprouting stage there was a trend that the contents of octacosanol, triacontanol and total alcohol were higher in resistant wheat varieties than those in susceptible ones. At seedling and ear sprouting stages, no matter what samples from wheat grew indoors or in field, the contents of octacosanol, octacosanoic acid, octadecanoic acid, oleic acid, hexacosanal and octacosanal increased with the rising of aphidresistant level of the wheat cultivars. The results lay a foundation for further research of the function of single component of wheat expicuticular wax on aphid host plant selection and resistance to aphid. Fig 4, Tab 1, Ref 33

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更新日期/Last Update: 2008-07-01