Studies on insect dormancy. II. Relationship of cold-hardiness to diapause and quiescence in the eastern tent caterpillar, Malacosoma americanum (Fab.), (Lasiocampidae: Lepidoptera).
Studies on insect dormancy. II. Relationship of cold-hardiness to diapause and quiescence in the eastern tent caterpillar, Malacosoma americanum (Fab.), (Lasiocampidae: Lepidoptera).
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昆虫休眠的研究。
DOI：
10.1139/z74-080
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发表时间：
1974
影响因子：
1.4
通讯作者：
A. Mansingh
中科院分区：
文献类型：
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作者：
A. Mansingh
研究了甘油和碳水化合物水平、过冷却点、滞育和发育卵的相对能力以及美洲天幕毛虫幼虫在5° C和−15 °C下承受不同时期的寒冷的相对能力之间的关系。成熟胚胎的滞育与非常高的甘油含量（112 mg/g）、低碳水化合物水平（13 mg/g）和过冷却到−35 °C的能力有关。 在滞育终止期间，甘油水平降至11 mg/g，仅碳水化合物水平略有上升，而过冷却点升至−14 °C。 当幼虫在5 ℃下冷却1 ~ 7周后进入静止期，其湿重、碳水化合物和甘油含量逐渐下降。然而，过冷却点保持在-14 °C左右，滞育胚胎可以在-15 ° C和5 °C的低温下存活数周。然而，在5 °C下暴露仅几周对静止幼虫是致命的。
Studies were conducted on the relationship between levels of glycerol and carbohydrates, supercooling points, and the relative abilities of diapausing and developing eggs and of larval instars of Malacosoma americanum to withstand various periods of chilling at 5° and −15 °C.Diapause in the mature embryos was associated with very high glycerol content (112 mg/g), low carbohydrate level (13 mg/g), and the ability to supercool to −35 °C. During diapause termination, the glycerol level was reduced lo 11 mg/g with a slight rise only in carbohydrate level while the supercooling point was raised to −14 °C. When quiescence was induced in the larvae by chilling them at 5 °C for 1 to 7 weeks, their wet weights and carbohydrate and glycerol contents decreased gradually. However, the supercooling point remained constant around −14 °C.Diapausing embryos could survive several weeks of chilling at −15° and 5 °C. However, only a few weeks of exposure to 5 °C was fatal to quiescent larvae.It is concluded that there is a ...