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红褐斑腿蝗的耐寒能力及其季节性变化
引用本文:王世贵,古丽米热·阿布克里木.红褐斑腿蝗的耐寒能力及其季节性变化[J].应用生态学报,2006,17(6):1133-1136.
作者姓名:王世贵  古丽米热·阿布克里木
作者单位:1. 杭州师范学院杭州市动物科学与技术重点实验室,杭州,310036
2. 杭州师范学院杭州市动物科学与技术重点实验室,杭州,310036;喀什师范学院生命与环境科学系,喀什,844000
基金项目:国家自然科学基金;浙江省重点扶植学科基金
摘    要:用测定过冷却点的方法研究了红褐斑腿蝗(Catantops pinguis (Stal))在不同季节的抗寒能力,并就虫体含水量、粗脂肪、总蛋白和总糖等成分在不同季节的变化及其对过冷却点的影响进行了探讨.结果表明,红褐斑腿蝗的过冷却点存在显著的季节性差异,依次为秋季种群((-23.1 ± 0.2 )℃)< 越冬后种群((-19.3 ± 0.1) ℃)< 夏季种群((-4.0 ± 0.1) ℃).含水率在生长期极显著高于越冬期,越冬初期和越冬后期变化不大,说明红褐斑腿蝗在越冬准备期已排出了体内多余的游离水.越冬后蝗虫体内总糖含量和脂肪含量均显著低于越冬初期,说明蝗虫在越冬时主要靠消耗体内的碳水化合物和脂肪物质来维持体温,体内的营养物质消耗极大,导致越冬后过冷却点显著上升.含水率和含脂率在两性间差异不显著,雌性蝗虫的总蛋白含量在夏季种群略高于雄性,越冬期显著低于雄性,可能与雌蝗孕卵过程中动用了大量营养物质有关.

关 键 词:红褐斑腿蝗  抗寒能力  季节性变化
文章编号:1001-9332(2006)06-1133-04
收稿时间:2005-05-24
修稿时间:2006-03-20

Cold tolerance and its seasonal variation of Catantops pinguis Stal
WANG Shigui,ABLIKIM Gulmire.Cold tolerance and its seasonal variation of Catantops pinguis Stal[J].Chinese Journal of Applied Ecology,2006,17(6):1133-1136.
Authors:WANG Shigui  ABLIKIM Gulmire
Institution:Hangzhou Key Laboratory for Animal Science and Technology, Hangzhou Normal College, Hangzhou 310036, China. sgwang@mail.hz.zj.cn
Abstract:By the method of supercooling point (SCP) determination, this paper studied the cold tolerance of Catantops pinguis Stal in different seasons, and the effects of insect body water content, crude fat, total protein and total sugar on it. The results showed that there was a significant seasonal variation in the SCP of C. pinguis. The mean SCP value of fall C. pinguis population was (-23.1 +/- 0.2) degrees C, while that of post-winter and summer C. pinguis populations was (-19.3 +/- 0.1) degrees C and (-4.0 +/- 0.1) degrees C, respectively. The water content in summer population was significantly higher than that in winter population, but little difference was observed in fall and post-winter populations, indicating that C. pinguis had eliminated the redundant dissociate water during the preparation period for its over-wintering. After winter, the contents of fat and sugar in C. pinguis decreased significantly because the storage of these compounds was expended to maintain the body temperature at winter time, and consequently, resulted in a marked increase of SCP in post-winter population. There was no significant difference in the contents of water and crude fat between female and male C. pinguis, but the total protein content of female C. pinguis was higher than that of male C. pinguis in summer while significantly lower in winter, because large amount of nutrients was expended by the female C. pinguis to form eggs.
Keywords:Catantops pinguis  Cold tolerance  Seasonal variation  
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