Hatching of amphibian embryos: the physiological trigger

J W Petranka; J J Just; E C Crawford

doi:10.1126/science.7089563

Hatching of amphibian embryos: the physiological trigger

Science. 1982 Jul 16;217(4556):257-9. doi: 10.1126/science.7089563.

Authors

J W Petranka, J J Just, E C Crawford

PMID: 7089563
DOI: 10.1126/science.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.

Publication types

Research Support, Non-U.S. Gov't
Research Support, U.S. Gov't, P.H.S.

MeSH terms

Ambystoma / physiology*
Animals
Embryo, Nonmammalian / physiology*
Female
Ovum / physiology

Grants and funding

2-SO7-RR07114-13/RR/NCRR NIH HHS/United States