寄主植物对桃小食心虫越冬幼虫耐寒性物质的影响  

Effects of different host plants on the cold-resistant substances in overwintering larvae of Carposina sasakii Matsumura( Lepidoptera: Carposinidae)

作　　者：王鹏[1,2,3] 于毅[1] 许永玉[2] 李丽莉[1] 张安盛[1] 门兴元[1] 张思聪[1] 周仙红[1] 

机构地区：[1]山东省农业科学院植物保护研究所山东省植物病毒学重点实验室,济南250100 [2]山东农业大学植物保护学院,山东泰安271018 [3]烟台市农业科学研究院,山东烟台265500

出　　处：《应用生态学报》2014年第5期1513-1517,共5页Chinese Journal of Applied Ecology

基　　金：公益性行业(农业)科研项目(201103024)资助

摘　　要：为研究寄主植物对桃小食心虫越冬幼虫体内耐寒性物质的影响,测定了苹果、酸枣、枣、梨和山楂5种寄主植物上采集的桃小食心虫越冬幼虫过冷却点、体内含水量、总脂肪、总蛋白和总糖含量.结果表明:5种果实上采集到的桃小食心虫越冬幼虫的过冷却点(SCP)和结冰点(FP)存在显著差异,均值分别在-15.53^-8.50℃和-11.31^-4.04℃.其中取食山楂的幼虫SCP、FP和糖原含量最高,含水量最低;取食苹果的SCP、FP、糖原和总脂肪含量最低,含水量和总蛋白含量最高;取食梨的桃小食心虫越冬幼虫的鲜质量最高;取食枣的桃小食心虫的总脂肪含量最高,总蛋白含量和鲜质量最低.To evaluate the influence of different host plants including apple, wild jujube, jujube, pear and hawthorn on the cold-tolerance substances in overwintering larvae of the peach fruit moth Carposina sasakii Matsumura, we measured the larvae super-cooling capacity, the water content （ W）, total fat content （ TFC）, total protein content （TPC） and total glycogen content （ TGC ） in the body. Results showed that the mean super-cooling point （SCPs） and freezing point （FPs） of overwintering larvae from the 5 host plant fruits differed significantly, ranging from -15.53 to -8.50 ℃ and -11.31 to -4.04 ℃, respectively. The overwintering larvae fed on hawthorn owned the highest SCP, FP, TGC and the lowest W, while those fed on apple had the lowest SCP, FP, TFC and TGC but the highest W and TPC. The fresh mass （FM） of the overwintering larvae fed on pear was the highest, while those fed on jujube was very low. Those fed on jujube accumulated the highest TFC but the lowest TPC.

关 键 词：过冷却点 含水量 总脂肪 总蛋白 总糖桃小食心虫 

分 类 号：S433.4[农业科学—农业昆虫与害虫防治]