Advanced search
Start date
Betweenand

Effects of the infection by the Batrachochytrium dendrobatidis on the cardiac morphophysiology of bullfrog tadpoles

Grant number: 11/06632-3
Support type:Scholarships in Brazil - Scientific Initiation
Effective date (Start): May 01, 2011
Effective date (End): December 31, 2011
Field of knowledge:Biological Sciences - Physiology
Principal Investigator:Monica Jones Costa
Grantee:Raquel Fernanda Salla Jacob
Home Institution: Universidade Federal de São Carlos (UFSCAR). Campus de Sorocaba. Sorocaba , SP, Brazil

Abstract

Several studies have been indicating an alarming decline of amphibian populations worldwide. The chytridiomycosis, an emergent infection caused by the fungus chitridio Batrachochytrium dendrobatidis (Bd) that infects anuran skin, have been considered one of the main factors underlying this decline over recent decades. Predominantly aquatic, Bd spreads rapidly in the environment, having the ability of infecting most amphibian species. Despite de action mechanisms by which Bd causes this infection are not yet completely elucidated, it is know that amphibian skin is singular among vertebrates due to its role played in the homeostatic balance. As a consequence, Bd infection can affect water and ionic balance, therefore reducing the transportation of electrolytes that are essential to the cardiac dynamics and then compromising the cardiac performance of infected animals. Indeed, it was already demonstrated that infected animals can die by asystole. This observation gives clear evidence of the negative impact of Bd infection over amphibian cardiac function. In this sense, the aim of this project is to evaluate the impact of the infection by the fungus that causes chytridiomycosis (Bd) over the cardiac morphophysiology of bullfrog tadpoles by the analysis of its effect on animals' level of activity, cardiac frequency, relative ventricular mass, and the cardiac morphology.

Scientific publications
(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)
SALLA, RAQUEL FERNANDA; GAMERO, FERNANDO URBAN; RIBEIRO, LARISSA RODRIGUES; RIZZI, GISELE MIGLIORANZA; DAL MEDICO, SAMUEL ESPINOSA; RISSOLI, RAFAEL ZANELLI; VIEIRA, CONRADO AUGUSTO; MATHIAS SILVA-ZACARIN, ELAINE CRISTINA; LEITE, DOMINGOS SILVA; ABDALLA, FABIO CAMARGO; TOLEDO, LUIS FELIPE; COSTA, MONICA JONES. Cardiac adaptations of bullfrog tadpoles in response to chytrid infection. JOURNAL OF EXPERIMENTAL ZOOLOGY PART A-ECOLOGICAL GENETICS AND PHYSIOLOGY, v. 323, n. 7, p. 487-496, AUG 1 2015. Web of Science Citations: 8.

Please report errors in scientific publications list by writing to: cdi@fapesp.br.