哎,我还是来给你举一个你能够真正理解的例子吧。
某地农户养殖蝗虫供应当地餐馆,日供应200公斤。这200公斤蝗虫是怎么供应的呢?使用蛇皮袋子一收集一整袋子,裹起来提送给饭馆。
你觉得这一蛇皮袋子蝗虫是群体密度不够还是“被攻击”力度不够?还是说它能分辨出不是被鸟攻击,所以不分泌剧毒氢氰酸?
而你又预测这一蛇皮袋子“剧毒”蝗虫每天要毒死多少个食客?
至于你给的英文内容,我就不跟你解释了,因为你未必能听得懂。能够把上边的现实事例理解了就可以了。
【 在 kirbyzhou 的大作中提到: 】
:
https://www.science.org/doi/10.1126/sciadv.aav5495: Many aggregating animals use aposematic signals to advertise their toxicity to predators. However, the coordination between aposematic signals and toxins is poorly understood. Here, we reveal that phenylacetonitrile (PAN) acts as an olfactory aposematic s
: ignal and precursor of hypertoxic hydrogen cyanide (HCN) to protect gregarious locusts from predation. We found that PAN biosynthesis from phenylalanine is catalyzed by CYP305M2, a novel gene encoding a cytochrome P450 enzyme in gregarious locusts. The RN
: ...................
--
FROM 111.30.223.*