Changes of diapause and cold hardiness in the Shonai ecotype larvae of the rice stem borer, Chilo suppressalis Walker (Lepidoptera: Pyralidae) during overwintering
Changes of diapause and cold hardiness in the Shonai ecotype larvae of the rice stem borer, Chilo suppressalis Walker (Lepidoptera: Pyralidae) during overwintering
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DOI：
10.1303/aez.2001.323
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发表时间：
2001-08
影响因子：
1.3
通讯作者：
M. Goto;Yi-ping Li;T. Honma
中科院分区：
文献类型：
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作者：
M. Goto;Yi-ping Li;T. Honma
庄内生态型二化螟幼虫在10月环境温度较高时处于滞育状态，大部分幼虫在入冬前的11月终止滞育。田间采集的幼虫在滞育期的抗寒能力较低，但在滞育后期则相对较高。甘油在滞育阶段几乎检测不到，但其含量在滞育后阶段增加。在温度驯化（0-30°C）期间，在滞育幼虫中发现了糖原和甘油之间的转化，但在田间条件下检测到糖原损失和甘油增加之间存在时间滞后。庄内生态型获得的结果与该物种的其他主要生态型（西国生态型）的结果进行了比较。
Larvae of the Shonai ecotype of the rice stem borer, Chilo suppressalis, were in diapause until October when the ambient temperature was relatively high and most of the larvae terminated diapause in November before winter. The cold hardiness of field-collected larvae was low at the diapause stage, but relatively high at the post-diapause stage. Glycerol was scarcely detected at the diapause stage, but its content increased at the post-diapause stage. Conversion between glycogen and glycerol was found in diapausing larvae during temperature acclimation (0–30°C), but a time lag between glycogen loss and glycerol increase was detected under field conditions. The results obtained for the Shonai ecotype are compared with those of the other main ecotype of this species, the Saigoku ecotype.