In:
Biology Letters, The Royal Society, Vol. 4, No. 4 ( 2008-08-23), p. 351-354
Abstract:
The membrane pacemaker hypothesis predicts that long-living species will have more peroxidation-resistant membrane lipids than shorter living species. We tested this hypothesis by comparing the fatty acid composition of heart phospholipids from long-living Procellariiformes (petrels and albatrosses) to those of shorter living Galliformes (fowl). The seabirds were obtained from by-catch of commercial fishing operations and the fowl values from published data. The 3.8-fold greater predicted longevity of the seabirds was associated with elevated content of peroxidation-resistant monounsaturates and reduced content of peroxidation-prone polyunsaturates and, consequently, a significantly reduced peroxidation index in heart membrane lipids, compared with fowl. Peroxidation-resistant membrane composition may be an important physiological trait for longevous species.
Type of Medium:
Online Resource
ISSN:
1744-9561
,
1744-957X
DOI:
10.1098/rsbl.2008.0145
Language:
English
Publisher:
The Royal Society
Publication Date:
2008
detail.hit.zdb_id:
2103283-X
SSG:
12
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