运用冰核活性细菌降低害虫的抗寒能力

 昆虫体重的60%～80%由水分组成,由于水的过冷却特性,使得昆虫在一定的低温条件下不会因体内结冰而死亡。这也是昆虫具备抗寒能力,越冬后仍能生存的主要原因。昆虫应付冬季低温的策略因种类而异。冰核活性细菌能提高昆虫的过冷却点,使其在较高的亚零下温度下体内结冰,从而提高避免结冰类型昆虫的越冬死亡率。因此,利用INA细菌控制害虫的种群数量,广泛引起了各国科学家的关注。

Reducing Cold-Hardiness of Pest Using Ice Nucleating Active Bacteria

As much as 60%～80% of insect's body mass is water. Because supercooling capacity of the water, insects can survive after winter. Diverse species adopt different strategies to spend the winter. Ice nucleating active bacteria can elevate pest's supercooling point, which cause pests freeze at high subzero temperature and increase pest's mortality. As a potential biological agent, it has attracted scientist's attention. This paper reviewed the advance in this field and possibility of using INA bacteria for pest management.