两栖动物胚胎的孵化：生理触发因素。
Hatching of amphibian embryos: the physiological trigger.
作者信息
Petranka J W, Just J J, Crawford E C
出版信息
Science. 1982 Jul 16;217(4556):257-9. doi: 10.1126/science.7089563.
PMID:7089563
Abstract
Marbled salamander embryos hatch in water if the environmental oxygen pressure is 86 torr or less, but do not hatch if the environmental oxygen pressure is equivalent to that of air. Under hypoxic conditions, embryos hatch in aqueous and nonaqueous media with equal success. Increasing carbon dioxide pressure does not induce hatching, but does decrease the time to hatching by altering environmental pH.
摘要
如果环境氧压为86托或更低，虎纹钝口螈胚胎会在水中孵化，但如果环境氧压与空气中的氧压相当，则不会孵化。在缺氧条件下，胚胎在水性和非水性介质中孵化的成功率相同。增加二氧化碳压力不会诱导孵化，但会通过改变环境pH值来缩短孵化时间。
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