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Carotenoid maintenance handicap and the physiology of carotenoid-based signalisation of health

SYSNO ASEP	0324496
Document Type	J - Journal Article
R&D Document Type	Journal Article
Subsidiary J	Článek ve WOS
Title	Carotenoid maintenance handicap and the physiology of carotenoid-based signalisation of health
Title	Hypotéza karotenoidního handicapu a fyziologie signalizace zdraví karotenoidními ornamenty
Author(s)	Vinkler, Michal (UBO-W)_{RID, ORCID} Albrecht, Tomáš (UBO-W)_{RID, SAI, ORCID}
Number of authors	2
Source Title	Science of Nature : Naturwissenschaften. - : Springer - ISSN 0028-1042 Roč. 97, č. 1 (2010), s. 19-28
Number of pages	10 s.
Language	eng - English
Country	DE - Germany
Keywords	Carotenoids ; Ornamentation ; Oxidative stress ; Testosterone ; Trade-off
Subject RIV	EB - Genetics ; Molecular Biology
R&D Projects	GA206/06/0851 GA ČR - Czech Science Foundation (CSF)
	LC06073 GA MŠMT - Ministry of Education, Youth and Sports (MEYS)
	GA206/08/1281 GA ČR - Czech Science Foundation (CSF)
CEZ	AV0Z60930519 - UBO-W (2005-2011)
UT WOS	000272912100002
EID SCOPUS	73649092780
DOI	10.1007/s00114-009-0595-9
Annotation	Carotenoid-based colouration is common in animal ornamental traits. Although many hypotheses assume health signalisation based on these traits the underlying physiological mechanism remains unresolved. In this article we propose a new hypothesis which assumes that under certain conditions is the maintenance of high levels of carotenoids harmful for the organism. If antioxidant reserves are low carotenoids may be easily attacked by reactive oxygen species resulting in their cleavage into toxic aldehydes. Therefore maintanance of high levels of carotenoids represents a handicap which can be afforded only by high quality individuals. We suggest that the physiological mechanism involves testosterone effect on antioxidant reserves and carotenoid levels. Current evidence supporting this hypothesis is given.
Workplace	Institute of Vertebrate Biology
Contact	Hana Slabáková, slabakova@ivb.cz, Tel.: 543 422 524
Year of Publishing	2010

Number of the records: 1