Brightly coloured tissues in limid bivalves chemically deter predators.

Autor:	Dougherty LF; Department of Ecology and Evolutionary Biology, University of Colorado Boulder, Boulder, CO, USA.; Museum of Natural History, University of Colorado Boulder, Boulder, CO, USA.; Department of Integrative Biology, University of California Berkeley, Berkeley, CA, USA., Niebergall AK; Department of Integrative Biology, University of California Berkeley, Berkeley, CA, USA., Broeckling CD; Proteomics and Metabolomics Facility, Colorado State University, Fort Collins, CO, USA., Schauer KL; Genome Center of Wisconsin, University of Wisconsin Madison, Madison, WI, USA., Li J; Department of Ecology and Evolutionary Biology, University of Colorado Boulder, Boulder, CO, USA.; Museum of Natural History, University of Colorado Boulder, Boulder, CO, USA.
Jazyk:	angličtina
Zdroj:	Royal Society open science [R Soc Open Sci] 2019 Oct 02; Vol. 6 (10), pp. 191298. Date of Electronic Publication: 2019 Oct 02 (Print Publication: 2019).
DOI:	10.1098/rsos.191298
Abstrakt:	Members of the marine bivalve family Limidae are known for their bright appearance. In this study, their colourful tissues were examined as a defence mechanism towards predators. We showed that when attacked by the peacock mantis shrimp ( Odontodactylus scyllarus ), the 'disco' clam, Ctenoides ales , opened wide to expose brightly coloured tissues to the predator. The predator also significantly preferred to consume the internal, non-colourful clam tissues than the external, colourful tissues. Mass spectrometry-based metabolomic analysis confirmed that colourful tissues had significantly different chemical compositions than the non-colourful ones. The internal, non-colourful tissues had metabolite profiles more similar to an outgroup bivalve than to the species' own colourful external tissues. A number of the compounds that differentiated the colourful tissues from the non-colourful tissues appeared to be peptide-like, which potentially serve as the underlying defensive compounds. This is the first study demonstrating that colourful bivalve tissues are used for chemical defence. Competing Interests: The authors have no competing interests. (© 2019 The Authors.)
Databáze:	MEDLINE
Externí odkaz:	Zobrazit plný text záznamu