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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Symbiotic skin bacteria as a source for sex-specific scents in frogs

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Author(s):
Brunetti, Andres E. [1] ; Lyra, Mariana L. [2, 3] ; Melo, Weilan G. P. [1] ; Andrade, Laura E. [1] ; Palacios-Rodriguez, Pablo [4] ; Prado, Barbara M. [1] ; Haddad, Celio F. B. [2, 3] ; Pupo, Monica T. [1] ; Lopes, Norberto P. [1]
Total Authors: 9
Affiliation:
[1] Univ Sao Paulo, Fac Ciencias Farmaceut Ribeirao Preto, BR-14040903 Ribeirao Preto, SP - Brazil
[2] Univ Estadual Paulista, Inst Biociencias, Dept Zool, BR-13506900 Rio Claro, SP - Brazil
[3] Univ Estadual Paulista, Inst Biociencias, Ctr Aquicultura, BR-13506900 Rio Claro, SP - Brazil
[4] Univ Los Andes, Dept Ciencias Biol, Bogota 4976 - Colombia
Total Affiliations: 4
Document type: Journal article
Source: PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA; v. 116, n. 6, p. 2124-2129, FEB 5 2019.
Web of Science Citations: 2
Abstract

Amphibians are known to possess a wide variety of compounds stored in their skin glands. While significant progress has been made in understanding the chemical diversity and biological relevance of alkaloids, amines, steroids, and peptides, most aspects of the odorous secretions are completely unknown. In this study, we examined sexual variations in the volatile profile from the skin of the tree frog Boana prasina and combined culture and culture-independent methods to investigate if microorganisms might be a source of these compounds. We found that sesquiterpenes, thioethers, and methoxypyrazines are major contributors to the observed sex differences. We also observed that each sex has a distinct profile of methoxypyrazines, and that the chemical origin of these compounds can be traced to a Pseudomonas sp. strain isolated from the frog's skin. This symbiotic bacterium was present in almost all individuals examined from different sites and was maintained in captive conditions, supporting its significance as the source of methoxypyrazines in these frogs. Our results highlight the potential relevance of bacteria as a source of chemical signals in amphibians and contribute to increasing our understanding of the role that symbiotic associations have in animals. (AU)

FAPESP's process: 13/50741-7 - Diversity and conservation of Brazilian amphibians
Grantee:Célio Fernando Baptista Haddad
Support type: BIOTA-FAPESP Program - Thematic Grants
FAPESP's process: 13/50954-0 - Novel therapeutic agents from the bacterial symbionts of Brazilian invertebrates
Grantee:Mônica Tallarico Pupo
Support type: BIOTA-FAPESP Program - Thematic Grants
FAPESP's process: 14/20915-6 - Chemical ecology in anurans: characterization of volatile compounds and peptide pheromones from the skin secretions of frogs
Grantee:Andrés Eduardo Brunetti
Support type: Scholarships in Brazil - Post-Doctorate
FAPESP's process: 14/50265-3 - Distribution and metabolism of natural and synthetic xenobiotics: from the comprehension of reactional process to tissue imaging generation
Grantee:Norberto Peporine Lopes
Support type: BIOTA-FAPESP Program - Thematic Grants
FAPESP's process: 15/01001-6 - Discovering bacterial symbionts diversity associated with ants in different Brazilian biomes
Grantee:Weilan Gomes da Paixão Melo
Support type: Scholarships in Brazil - Post-Doctorate
FAPESP's process: 17/23725-1 - Genomic analysis of skin symbiotic bacteria in frogs as potential source of volatile compounds
Grantee:Andrés Eduardo Brunetti
Support type: Scholarships abroad - Research Internship - Post-doctor
FAPESP's process: 17/26162-8 - Diversity and conservation of Brazilian amphibians
Grantee:Mariana Lúcio Lyra
Support type: Scholarships in Brazil - Technical Training Program - Technical Training