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兴安落叶松鞘蛾(Coleophora dahurica Flkv.)幼虫的越冬能源物质以糖原,脂肪为主。根据含量和呼吸系数的测定结果,脂肪是贮存的主要越冬能源物质,越冬前后,其含量从57.6±0.7μg/条降至20.5±0.5μg/条,消耗64.4％。脂肪含量的多少对越冬会产生一定影响。 越冬幼虫的代谢速率很低,越冬初期和越冬深期的平均代谢速率仅为0.1872μlO_2/mg鲜重/h和0.1007μlO_2/mg鲜重/h,远对减少越冬能源物质的消耗,顺利渡过寒冷的冬季是有利的。 越冬幼虫在冬季气温最低的1月份的过冷却点为-36℃以下,说明具有较强的耐寒力。
The overwintering energy source of larvae of Coleophora dahurica Flkv. Is mainly glycogen and fat. According to the determination of the content and respiration coefficient, fat is the main winter energy source stored, before and after overwintering, its content decreased from 57.6 ± 0.7μg / to 20.5 ± 0.5μg / strip, consuming 64.4%. The amount of fat on winter will have a certain impact. Overwintering larvae have a very low metabolic rate, with an average metabolic rate of only 0.1872 μl O 2 / mg fresh weight / h and 0.1007 μl O 2 / mg fresh weight / h in the early winter and overwintering periods, far reducing the consumption of winter energy supplies. Cold winter is good. Overwintering larvae in January the lowest temperature in winter overcooling point of -36 ℃ below, indicating a strong cold hardiness.