Chemical camouflage--a frog's strategy to co-exist with aggressive ants.

Whereas interspecific associations receive considerable attention in evolutionary, behavioural and ecological literature, the proximate bases for these associations are usually unknown. This in particular applies to associations between vertebrates with invertebrates. The West-African savanna frog P...

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Autores principales:	Mark-Oliver Rödel, Christian Brede, Mareike Hirschfeld, Thomas Schmitt, Philippe Favreau, Reto Stöcklin, Cora Wunder, Dietrich Mebs
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2013
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/62a2ab6e36774719818940a189d4b723
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spelling	oai:doaj.org-article:62a2ab6e36774719818940a189d4b7232021-11-18T08:42:28ZChemical camouflage--a frog's strategy to co-exist with aggressive ants.1932-620310.1371/journal.pone.0081950https://doaj.org/article/62a2ab6e36774719818940a189d4b7232013-01-01T00:00:00Zhttps://www.ncbi.nlm.nih.gov/pmc/articles/pmid/24349157/?tool=EBIhttps://doaj.org/toc/1932-6203Whereas interspecific associations receive considerable attention in evolutionary, behavioural and ecological literature, the proximate bases for these associations are usually unknown. This in particular applies to associations between vertebrates with invertebrates. The West-African savanna frog Phrynomantis microps lives in the underground nest of ponerine ants (Paltothyreus tarsatus). The ants usually react highly aggressively when disturbed by fiercely stinging, but the frog is not attacked and lives unharmed among the ants. Herein we examined the proximate mechanisms for this unusual association. Experiments with termites and mealworms covered with the skin secretion of the frog revealed that specific chemical compounds seem to prevent the ants from stinging. By HPLC-fractionation of an aqueous solution of the frogs' skin secretion, two peptides of 1,029 and 1,143 Da were isolated and found to inhibit the aggressive behaviour of the ants. By de novo sequencing using tandem mass spectrometry, the amino acid sequence of both peptides consisting of a chain of 9 and 11 residues, respectively, was elucidated. Both peptides were synthesized and tested, and exhibited the same inhibitory properties as the original frog secretions. These novel peptides most likely act as an appeasement allomone and may serve as models for taming insect aggression.Mark-Oliver RödelChristian BredeMareike HirschfeldThomas SchmittPhilippe FavreauReto StöcklinCora WunderDietrich MebsPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 8, Iss 12, p e81950 (2013)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Mark-Oliver Rödel Christian Brede Mareike Hirschfeld Thomas Schmitt Philippe Favreau Reto Stöcklin Cora Wunder Dietrich Mebs Chemical camouflage--a frog's strategy to co-exist with aggressive ants.
description	Whereas interspecific associations receive considerable attention in evolutionary, behavioural and ecological literature, the proximate bases for these associations are usually unknown. This in particular applies to associations between vertebrates with invertebrates. The West-African savanna frog Phrynomantis microps lives in the underground nest of ponerine ants (Paltothyreus tarsatus). The ants usually react highly aggressively when disturbed by fiercely stinging, but the frog is not attacked and lives unharmed among the ants. Herein we examined the proximate mechanisms for this unusual association. Experiments with termites and mealworms covered with the skin secretion of the frog revealed that specific chemical compounds seem to prevent the ants from stinging. By HPLC-fractionation of an aqueous solution of the frogs' skin secretion, two peptides of 1,029 and 1,143 Da were isolated and found to inhibit the aggressive behaviour of the ants. By de novo sequencing using tandem mass spectrometry, the amino acid sequence of both peptides consisting of a chain of 9 and 11 residues, respectively, was elucidated. Both peptides were synthesized and tested, and exhibited the same inhibitory properties as the original frog secretions. These novel peptides most likely act as an appeasement allomone and may serve as models for taming insect aggression.
format	article
author	Mark-Oliver Rödel Christian Brede Mareike Hirschfeld Thomas Schmitt Philippe Favreau Reto Stöcklin Cora Wunder Dietrich Mebs
author_facet	Mark-Oliver Rödel Christian Brede Mareike Hirschfeld Thomas Schmitt Philippe Favreau Reto Stöcklin Cora Wunder Dietrich Mebs
author_sort	Mark-Oliver Rödel
title	Chemical camouflage--a frog's strategy to co-exist with aggressive ants.
title_short	Chemical camouflage--a frog's strategy to co-exist with aggressive ants.
title_full	Chemical camouflage--a frog's strategy to co-exist with aggressive ants.
title_fullStr	Chemical camouflage--a frog's strategy to co-exist with aggressive ants.
title_full_unstemmed	Chemical camouflage--a frog's strategy to co-exist with aggressive ants.
title_sort	chemical camouflage--a frog's strategy to co-exist with aggressive ants.
publisher	Public Library of Science (PLoS)
publishDate	2013
url	https://doaj.org/article/62a2ab6e36774719818940a189d4b723
work_keys_str_mv	AT markoliverrodel chemicalcamouflageafrogsstrategytocoexistwithaggressiveants AT christianbrede chemicalcamouflageafrogsstrategytocoexistwithaggressiveants AT mareikehirschfeld chemicalcamouflageafrogsstrategytocoexistwithaggressiveants AT thomasschmitt chemicalcamouflageafrogsstrategytocoexistwithaggressiveants AT philippefavreau chemicalcamouflageafrogsstrategytocoexistwithaggressiveants AT retostocklin chemicalcamouflageafrogsstrategytocoexistwithaggressiveants AT corawunder chemicalcamouflageafrogsstrategytocoexistwithaggressiveants AT dietrichmebs chemicalcamouflageafrogsstrategytocoexistwithaggressiveants
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Chemical camouflage--a frog's strategy to co-exist with aggressive ants.

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