Heat susceptibility of ice nucleators limiting supercooling ability of the house spider, Achaearanea tepidariorum (Araneae: Theridiidae)

Acta Arachnologica

Kazuhiro Tanaka¹ 

[1] Ecological Laboratory, General Education, Miyagi Gakuin Women's University, Sendai, Miyagi 981-8557, Japan

关键词: Ice nucleators;    Supercooling point;    Spider;    Heat susceptibility;   

DOI  :  10.2476/asjaa.55.77

学科分类：动物科学

来源: Arachnological Society of Japan

【 摘 要 】

References(12)Supercooling ability of the house spider, Achaearanea tepidariorum, is depressed by exogenous ice nucleators ingested with prey animals. To characterize the ice nucleators, the effect of heat exposure on the ice nucleating activity of the nucleators was examined. Spiders that fed on a heated isopod's gut (80-90°C) had a lower supercooling point (SCP) or temperature of crystallization than those that fed on an unheated gut. This result suggests that the ice nucleators limiting the supercooling ability of the predator are organic in origin.

【 授权许可】

Unknown