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Virulence assessment and phenotypic and genomic characterization of Corynebacterium spp. isolated from sow's urinary tract infection

Grant number: 16/25745-7
Support type:Scholarships in Brazil - Post-Doctorate
Effective date (Start): May 01, 2017
Effective date (End): January 31, 2019
Field of knowledge:Agronomical Sciences - Veterinary Medicine - Preventive Veterinary Medicine
Principal Investigator:Andrea Micke Moreno
Grantee:Luisa Zanolli Moreno
Home Institution: Faculdade de Medicina Veterinária e Zootecnia (FMVZ). Universidade de São Paulo (USP). São Paulo , SP, Brazil


The Corynebacterium genus still is poorly studied, despite the importance of toxigenic species for both human and animal health. The impact of the infection by these microorganisms on swine production has not yet been addressed, both in the international scenario and in the Brazilian reality, although pigs have been cited as carriers of Corynebacterium species. The aim of the present study is to characterize strains of Corynebacterium spp. isolated from sow's genito-urinary tract. The strains were previously identified as C. confusum, C. amycolatum, C. diphtheriae and for a group of six strains it was not possible to identify the species by MALDI-TOF MS and 16S rRNA and rpoB sequencing. Therefore, the present project proposes the assessment of the virulence of the different Corynebacterium species isolated from swine with the in vivo model of Galleria mellonella; the characterization and comparison of the respective biochemical profiles by the Biolog® system, and sequencing and comparative genomic analysis. The association of the in vivo virulence assessment with the genomic analysis will allow the identification of the genetic mechanisms of the observed virulence. The genomic comparison of strains of the same species, originated from different hosts, will also enable the identification of possible genetic predisposition to hosts. In addition, the genomic analysis will conclude the bacterial identification to confirm the suspected isolation of a new species or subspecies of Corynebacterium from swine in Brazil. (AU)

Scientific publications (6)
(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)
MATAJIRA, CARLOS E. C.; MORENO, LUISA Z.; POOR, ANDRE P.; GOMES, VASCO T. M.; DALMUTT, ANDRESSA C.; PARRA, BEATRIZ M.; DE OLIVEIRA, CAROLINA H.; BARBOSA, MIKAELA R. F.; SATO, MARIA INES Z.; CALDERARO, FRANCO F.; MORENO, ANDREA M. Streptococcus suis in Brazil: Genotypic, Virulence, and Resistance Profiling of Strains Isolated from Pigs between 2001 and 2016. PATHOGENS, v. 9, n. 1 JAN 2020. Web of Science Citations: 0.
AMIGO, CRISTINA ROMAN; MORENO, LUISA ZANOLLI; PORFIDA FERREIRA, THAIS SEBASTIANA; DE MOURA GOMES, VASCO TULIO; POOR, ANDRE PEGORARO; DE OLIVEIRA, CAROLINA HELENA; PARRA, BEATRIZ MARTINS; SANTOS SILVA, ANA PAULA; MORENO, ANDREA MICKE. Phenotypic, molecular and genomic characterization of Actinobaculum suis isolated from swine in Brazil. Anaerobe, v. 56, p. 27-33, APR 2019. Web of Science Citations: 0.
MORENO, LUISA Z.; COMES, VASCO T. M.; MOREIRA, JESSICA; DE OLIVEIRA, CAROLINA H.; PERES, BARBARA P.; SILVA, ANA PAULA S.; THAKUR, SIDDHARTHA; LA RAGIONE, ROBERTO M.; MORENO, ANDREA M. First report of mcr-1-harboring Salmonella enterica serovar Schwarzengrund isolated from poultry meat in Brazil. DIAGNOSTIC MICROBIOLOGY AND INFECTIOUS DISEASE, v. 93, n. 4, p. 376-379, APR 2019. Web of Science Citations: 7.
SPINDOLA, MARIA G.; CUNHA, MARCOS P. V.; MORENO, LUISA Z.; AMIGO, CRISTINA R.; SILVA, ANA P. S.; PARRA, BEATRIZ M.; POOR, ANDRE P.; DE OLIVEIRA, CAROLINA H.; PEREZ, BARBARA P.; KNOBL, TEREZINHA; MORENO, ANDREA M. Genetic diversity, virulence genotype and antimicrobial resistance of uropathogenic Escherichia coli (UPEC) isolated from sows. VETERINARY QUARTERLY, v. 38, n. 1, p. 79-87, OCT 26 2018. Web of Science Citations: 0.
MORENO, LUISA ZANOLLI; MIRAGLIA, FABIANA; DE OLIVEIRA, CAROLINA HELENA; VASCONCELLOS, SILVIO ARRUDA; HEINEMANN, MARCOS BRYAN; MORENO, ANDREA MICKE. Draft Genome Sequence of Brazilian Leptospira interrogans Serovar Pomona Strain GR5, Isolated from Apparently Healthy Gilt. MICROBIOLOGY RESOURCE ANNOUNCEMENTS, v. 6, n. 23 JUN 2018. Web of Science Citations: 0.
MORENO, LUISA Z.; MATAJIRA, CARLOS E. C.; POOR, ANDRE P.; MESQUITA, RENAN E.; GOMES, VASCO T. M.; SILVA, ANA PAULA S.; AMIGO, CRISTINA R.; CHRIST, ANA PAULA G.; BARBOSA, MIKAELA R. F.; SATO, MARIA INES Z.; MORENO, ANDREA M. Identification through MALDI-TOF mass spectrometry and antimicrobial susceptibility profiling of bacterial pathogens isolated from sow urinary tract infection. VETERINARY QUARTERLY, v. 38, n. 1, p. 1-8, DEC 7 2017. Web of Science Citations: 2.

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