TEMPERATURE-DEPENDENT SORBITOL UTILIZATION IN DIAPAUSE EGGS OF THE SILKWORM, BOMBYX-MORI
TEMPERATURE-DEPENDENT SORBITOL UTILIZATION IN DIAPAUSE EGGS OF THE SILKWORM, BOMBYX-MORI
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DOI：
10.1007/bf00689286
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发表时间：
1982-01-01
期刊：
影响因子：
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通讯作者：
YAMASHITA, O
中科院分区：
文献类型：
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作者：
FURUSAWA, T;SHIKATA, M;YAMASHITA, O
研究了低温(5℃)对家蚕卵滞育开始和终止时糖原和山梨醇的相互转化是否有影响。C和1度。c)。滞育开始时糖原向山梨醇和甘油的转化不受5度光照的影响。C和1度。C.冷藏滞育卵，温度为5℃。C超过70天后，山梨醇逐渐转化为糖原。转到1度。在冷却至5度后。C导致山梨醇和甘油转化率降低。同时在1度的温度下连续冷却。C完全抑制山梨醇的利用至少400天，山梨醇在转移到5度后立即开始下降。相比之下，习服到1度并不能阻止甘油的利用。C，但出现了延迟性下降。连续暴露在1度以下。C延迟孵化440天，驯化至5度。C导致100%的.apprx孵化。100天。驯化温度1度的低或高的驯化温度。或5度。C对家蚕卵利用山梨醇和终止滞育有不同的影响。
A series of experiments was conducted to determine whether the interconversion of glycogen and sorbitol at the initiation and termination of diapause in eggs of the silkworm, B. mori was influenced by low temperatures (5.degree. C and 1.degree. C). The conversion of glycogen to sorbitol and glycerol at the initiation of diapause was not affected by exposure to 5.degree. C and 1.degree. C. Chilling diapause eggs at 5.degree. C for over 70 days resulted in a progressive conversion of sorbitol to glycogen. Transfer to 1.degree. C after chilling to 5.degree. C led to a decrease in sorbitol and glycerol conversion. While continuous chilling at 1.degree. C completely inhibited sorbitol utilization for at least 400 days, sorbitol began to decrease immediately following transfer to 5.degree. C. In contrast, glycerol utilization was not prevented by acclimation to 1.degree. C, but a delayed decrease occurred. Continuous exposure to 1.degree. C delayed hatching for a period of 440 days, whereas acclimation to 5.degree. C resulted in 100% hatching by .apprx. 100 days. A low or high acclimation temperature of 1.degree. or 5.degree. C produce different effects on sorbitol utilization and termination of diapause in silkworm eggs.