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高温胁迫对南亚果实蝇成虫多糖和甘油三酯的影响

发表时间:2009-08-31  浏览量:1603  下载量:560
全部作者: 刘国军,李小珍,刘映红
作者单位: 西南大学植物保护学院,重庆市昆虫学及害虫控制工程重点实验室;江西农业大学农学院
摘 要: 以黄瓜为食料,探讨(42±0.5)℃高温胁迫不同时间对南亚果实蝇虫体内2种能源物质(多糖、甘油三酯)含量的影响。结果表明:高温胁迫导致虫体多糖贮存量下降,连续处理15 d,每天分别胁迫5,15,30,60 min后,多糖含量的损失百分率分别达到2.04%,2.08%,5.04%和5.93%;对于甘油三酯,当胁迫时间为5 min时,虫体甘油三酯的含量较低,此后随着胁迫时间的延长,虫体甘油三酯含量的累积却增加。由所得结果可以推出:高温胁迫将提高南亚果实蝇虫体对多糖的消耗,增加甘油三酯的累积。
关 键 词: 农业昆虫学;南亚果实蝇;高温胁迫;多糖;甘油三酯
Title: Effects of heat shock on polysaccharide and triacylglycerol contents of Bactrocera tau (Walker) adults
Author: LIU Guojun, LI Xiaozhen, LIU Yinghong
Organization: Chongqing Key Laboratory of Entomology and Pest Control Engineering, College of Plant Protection, Southwest University;College of Agronomy, Jiangxi Agricultural University
Abstract: Effects of heat shock [(42±0.5)℃] with various durations (5, 15, 30 or 60 minutes daily) for 10 days or 15 days on polysaccharide and triacylglycerol contents of Bactrocera tau (Walker) adults fed on cucumber were determined systematically by biochemical methods. Loss rates of polysaccharide content increased to 2.04%, 2.08%, 5.04% and 5.93% respectively in 5, 15, 30, and 60 minutes daily for 15 days and except for the flies in 5 minutes daily, the accumulation of triacylglycerol of Bactrocera tau (Walker) increased responding to the treated durations. The above results suggested that under the heat shock conditions, the utilization of polysaccharides increased, while that of triacylglycerol decreased.
Key words: agricultural entomology; Bactrocera tau (Walker); heat shock; polysaccharide; triacylglycerol
发表期数: 2009年8月第16期
引用格式: 刘国军,李小珍,刘映红. 高温胁迫对南亚果实蝇成虫多糖和甘油三酯的影响[J]. 中国科技论文在线精品论文,2009,2(16):1681-1686.
 
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