QUICK SEARCH:   [advanced] Author: Keyword(s):
Home     Help     Feedback     Subscriptions     Archive     Search     Table of Contents

This Article Summary Full Text Full Text (PDF) Alert me when this article is cited Alert me if a correction is posted Services Email this article to a friend Similar articles in this journal Similar articles in PubMed Alert me to new issues of the journal Download to citation manager Citing Articles Citing Articles via HighWire Citing Articles via Google Scholar Google Scholar Articles by Burton, R. F. Search for Related Content PubMed PubMed Citation Articles by Burton, R. F.

Evolutionary determinants of normal arterial plasma pH in ectothermic vertebrates

Richard F. Burton^*

Institute of Biomedical and Life Sciences, Thomson Building, University of Glasgow, Glasgow G12 8QQ, UK

View larger version (10K): [in a new window]   Fig. 1. Arterial pH (pHa) at 25°C versus log[Na+] for reptiles (), amphibians (), water-breathing fish including Amia calva () and air-breathing fish (+).

View larger version (11K): [in a new window]   Fig. 2. (pHa–D''pH) (see Materials and methods) versus log[Na+] at 25 and 15°C for reptiles (), amphibians (), teleosts (), elasmobranchs (), Eptatretus cirrhatus () and other fish (). The curves are such that pHa+log([Na+]+80)–D''pH equals 9.89 at 25°C and 10.00 at 15°C.

View larger version (13K): [in a new window]   Fig. 3. pHa+log([Na+]+80) and D''pH (see Materials and methods) at 25 and 15°C: symbols are as in Fig. 2. The lines, of gradient +1, conform to the relationships given in Fig. 2.

View larger version (11K): [in a new window]   Fig. 4. Arterial pH (pHa) and log([Na+]+80)–D''pH (see Materials and methods) at 25 and 15°C: symbols are as in Fig. 2. The lines, of gradient –1, conform to the relationships given in Fig. 2.