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Titolo:
Effects of hypoxia on egg capsule conductance in Ambystoma (Class Amphibia, Order Caudata)
Autore:
Mills, NE; Barnhart, MC; Semlitsch, RD;
Indirizzi:
Univ Missouri, Div Biol Sci, Columbia, MO 65211 USA Univ Missouri Columbia MO USA 65211 Div Biol Sci, Columbia, MO 65211 USA SW Missouri State Univ, Dept Biol, Springfield, MO 65804 USA SW Missouri State Univ Springfield MO USA 65804 Springfield, MO 65804 USA
Titolo Testata:
JOURNAL OF EXPERIMENTAL BIOLOGY
fascicolo: 21, volume: 204, anno: 2001,
pagine: 3747 - 3753
SICI:
0022-0949(200111)204:21<3747:EOHOEC>2.0.ZU;2-D
Fonte:
ISI
Lingua:
ENG
Soggetto:
SALAMANDER EGGS; RANA-SYLVATICA; JELLY CAPSULE; GAS-EXCHANGE; FROG; MASSES; RESPIRATION; DIFFUSION; CONVECTION; PREDATION;
Keywords:
salamander; Ambystoma annulatum; Ambystoma talpoideum; hypoxia; egg capsule; conductance; development; survival;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Life Sciences
Citazioni:
28
Recensione:
Indirizzi per estratti:
Indirizzo: Mills, NE Univ Missouri, Div Biol Sci, 105 Tucker Hall, Columbia, MO 65211USA Univ Missouri 105 Tucker Hall Columbia MO USA 65211 MO 65211 USA
Citazione:
N.E. Mills et al., "Effects of hypoxia on egg capsule conductance in Ambystoma (Class Amphibia, Order Caudata)", J EXP BIOL, 204(21), 2001, pp. 3747-3753

Abstract

Aquatic amphibian eggs frequently encounter hypoxic conditions that have the potential to limit oxygen uptake and thereby slow embryonic development and hatching. Oxygen limitation might be avoided if egg capsule surface area and oxygen conductance increased in response to hypoxia. We investigated this possibility in two salamander species, Ambystoma annulatum and Ambystoma talpoideum. The effective surface area of egg capsules increased in response to hypoxia, which increased the conductance for oxygen and enhanced oxygen transport. The ability of amphibian eggs to adjust their conductance in response to oxygen availability may increase survival in hypoxic environments.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 30/09/20 alle ore 09:31:58