| 吴开元，陈红松，王国全，田震亚，朱丽珊，李汝雯，周忠实,2024,寄主植物对南亚果实蝇过冷却点和体液冰点的影响[J].环境昆虫学报,(1):151-165 |
| 寄主植物对南亚果实蝇过冷却点和体液冰点的影响 |
| Effects of host plants on the supercooling and freezing points of Zeugodacus tau(Walker) |
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| DOI： |
| 中文关键词: 南亚果实蝇 寄主植物 耐寒性 过冷却点 体液冰点 |
| 英文关键词:Zeugodacus tau(Walker) host plant cold hardiness supercooling point freezing point |
| 基金项目:国家重点研发计划(2022YFC2601400)；中国农科院&广西农科院科技创新工程协同创新任务(CAAS-GXAAS-XTCX2019026-3) |
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| 中文摘要: |
| 南亚果实蝇Zeugodacus tau(Walker)是一种世界性的重要检疫害虫，严重危害多种水果和瓜菜。为明确寄主植物对南亚果实蝇耐寒性的影响，本文利用过冷却点仪,对取食苦瓜Momordica charantia L.、黄瓜Cucumis sativus L.、丝瓜Luffa aegyptiaca Miller和杧果Mangifera indica L.的南亚果实蝇5个发育阶段的过冷却点和体液冰点进行了测定。结果显示：每一组寄主植物上的5个发育阶段中，南亚果实蝇5日龄蛹的过冷却点和体液冰点均为最低，显著低于1日龄蛹、幼虫和成虫；不同寄主南亚果实蝇同一发育阶段的过冷却点和体液冰点存在显著差异，均值分别为-23.97~-8.06℃和-14.02~-0.59℃，其中取食苦瓜的南亚果实蝇5日龄蛹过冷却点和体液冰点最低，均值分别为-23.97℃和-14.02℃，但与黄瓜无显著差异；4种寄主中老熟幼虫、1日龄蛹、1日龄雌成虫和5日龄雌成虫过冷却点均为取食黄瓜最低；杧果种群1日龄雌成虫过冷却点最高，均值为-7.47℃，苦瓜种群老熟幼虫体液冰点最高，均值为-0.59℃。本研究有助于了解寄主对南亚果实蝇耐寒力的影响，这对其越冬种群动态监测及防控具有重要指导意义。 |
| 英文摘要: |
| Zeugodacus tau (Walker) is an important quarantine pest in the world, which seriously damage a variety of fruits and cucurbits. In order to clarify the effect of host plants on the cold tolerance of Z.tau, the supercooling point and the freezing point of body fluids of 5 developmental stages of Z.tau fed on Momordica charantia L., Cucumis sativus L., Luffa aegyptiaca Miller and Mangifera indica L. were measured. The results showed that, in the 5 developmental stages of each group of host plants, the 〖HJ50x〗supercooling point and the freezing point of 5-day-old pupae of Z.tau were the lowest, which were significantly lower than those of the 1-day-old pupae, larvae and adults. While significant differences were found among the same developmental stage of Z.tau reared in different hosts plants, ranging from -23.97 to -8.06℃and -14.02 to -0.59℃, respectively. 5-day-old pupae of Z.tau fed on Momordica charantia showed the lowest the supercooling point (-23.97℃) and the freezing point (-14.02℃), but there was no significant difference with C. sativus. The cooling point of 4 stages of Z.tau (mature larvae, 1-day-old pupae, 1-day-old female adults and 5-day-old female adults)fed on C. sativus showed the lowest temperature among the 4 hosts plants. The supercooling point of the 1-day-old female adults of the M.indica population was the highest, with an average value of -7.47℃, and the freezing point of the body fluid of the mature larvae of the bitter gourd population was the highest, with an average value of -0.59℃. This study is enhanced the understanding of the host on the cold tolerance of Z.tau, which is of great significance for the research on the dynamics of Z.tau overwintering population, forecasting and integrated pest control. |
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