ISSN: 0325-7541

Revista Argentina de Microbiología is published by the Asociación Argentina de Microbiología (AAM) on a quarterly basis. The aim of this journal is to publish current scientific works in the different areas of Microbiology and Parasitology. Some of the topics considered of special interest are: infections caused by bacteria, fungi, parasites and viruses; mechanisms of pathogenicity, and virulence factors; resistance to antimicrobial agents; taxonomy; epidemiology and phenotypic, immunologic and molecular diagnostic methods. RAM also publishes articles on microbial ecology and diversity, zoo- and phytopathogens and microorganisms of value for food, agronomic, industrial and environmental applications. With the purpose of covering basic aspects of research in the area, the journal is also interested in the publication of manuscripts on microorganism genomics, proteomics and enzymology, as well as in those articles dealing with regional impact.

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Articles in press

Articles in press are accepted, peer reviewed articles that are not yet assigned to volumes/issues, but are citable using DOI. More info

Impacto de un programa de vigilancia activa y medidas de control de infecciones sobre la incidencia de bacilos gram negativos resistentes a carbapenems en una unidad de cuidados intensivos

Juan Martín Vargas, María Paula Moreno Mochi, Carolina Graciela López, Janet Alejandra Alarcón, Nancy Acosta, Karina Soria, Juan Manuel Nuñez, Sandra Villafañe, Jorge Ramacciotti, Rosa del Campo, María Angela Jure

10.1016/j.ram.2021.03.003

Highlights

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El cultivo de vigilancia permite conocer la incidencia de colonización por BGNCR.
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K. pneumoniae KPC-2 y A. baumannii IMP-1 fueron predominantes en pacientes colonizados.
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K. pneumoniae estuvo asociada a múltiples clones y A. baumannii fue monoclonal.
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El protocolo integrado de vigilancia permitió reducir la colonización por BGNCR.

Open access

Available online 2 June 2021

Improvement of the enrichment used in the EMJH medium (Ellinghausen–McCullough–Johnson–Harris) for the cultivation of Leptospira spp.

Israel Barbosa Guedes, Gisele Oliveira de Souza, Juliana Fernandes de Paula Castro, Matheus Burilli Cavalini, Antônio Francisco de Souza Filho, Juliana Aizawa, Adriana Cortez, Marcos Bryan Heinemann

10.1016/j.ram.2021.03.002

Highlights

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The original formulation of the EMJH medium enrichment was adapted.
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This improved enrichment was efficient in the cultivation of Leptospira spp.
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Other laboratories can use this enrichment in their routines.

Open access

Available online 2 June 2021

Mycoplasma maculosum and Mycoplasma spumans associated with fertility disorders in dogs from a Bernese Mountain dog kennel

Pablo Jesús Tamiozzo

10.1016/j.ram.2021.04.001

Highlights

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Mycoplasma maculosum and Mycoplasma spumans were detected by PCR in dogs.
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After antibiotic treatment reproductive disorders disappeared.
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Veterinarians not often consider Mycoplasma in the differential diagnosis of reproductive diseases.

Open access

Available online 30 May 2021

Actividad in vitro de delafloxacina frente a microorganismos aislados de infecciones osteoarticulares y de piel y partes blandas en Buenos Aires, Argentina

Federico Nicola, Natalia Azula, Gabriela Santoni, Jorgelina Smayevsky

10.1016/j.ram.2021.02.012

Highlights

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Delafloxacina es>60 más activa que otras fluoroquinolonas frente a estafilococos
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97% sensibilidad en Staphylococcus aureus y 93% en estafilococos coagulasa negativos
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Delafloxacina es similar a otras fluoroquinolonas frente a bacilos gram negativos
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El método epsilométrico y la difusión por discos son concordantes evaluando delafloxacina

Open access

Available online 28 May 2021

Clinical and epidemiological features of tuberculosis isolated from critically ill patients

Joaquín Hurtado, Cecilia Coitinho, Nicolás Nin, María Buroni, Francisco Javier Hurtado, Carlos Robello, Gonzalo Greif

10.1016/j.ram.2021.02.011

Highlights

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Genetic structure analysis of 60 TB strains isolated from patients from an ICU.
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We present a comparison with population circulating strains.
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We evaluate the correlation between the clinical outcome and genotypic data.
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We present an extensive cohort study done in critically ill patients with tuberculosis.

Open access

Available online 15 May 2021

Potential of rhizobacteria native to Argentina for the control of Meloidogyne javanica

María P. Borrajo, Eduardo A. Mondino, Guillermo A. Maroniche, Macarena Fernández, Cecilia M. Creus

10.1016/j.ram.2021.02.010

Highlights

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Autochthonous rhizobacteria against Meloidogyne javanica.
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Biocontrol by bacteria and their cell free supernatants.
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Impact of rhizobacteria in lettuce infested with Meloidogyne javanica.

Open access

Available online 2 May 2021

Efecto de los cultivos de cobertura invernales sobre el microbioma del suelo: revisión sistemática de la literatura

Marianela Estefanía Morales, Gastón Alejandro Iocoli, María Bonita Villamil, María Celina Zabaloy

10.1016/j.ram.2021.02.008

Highlights

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Se analizaron artículos reportando efectos del uso de cultivos de cobertura invernales (CCI) sobre la microbiota del suelo.
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El 40% reportan aumento de actividad y/o abundancia microbiana con crucíferas.
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Más del 75% informan aumento de actividad y/o abundancia microbiana con gramíneas.
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Más del 50% muestran aumento de actividad y/o abundancia microbiana con leguminosas.
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Las mezclas de especies en CCI incrementan la diversidad microbiana en suelo.

Open access

Available online 1 May 2021

Detection and genotyping of Listeria monocytogenes in artisanal soft cheeses from Ecuador

Estefania Espinosa-Mata, Lorena Mejía, José E. Villacís, Viviana Alban, Sonia Zapata

10.1016/j.ram.2021.02.013

Highlights

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Important occurrence of L. monocytogenes in soft cheeses.
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Molecular and classical detection of L. monocytogenes in food samples.
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First detection of L. monocytogenes serogroups in food and clinical samples in Ecuador.
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Antimicrobial susceptibility of L. monocytogenes.

Open access

Available online 25 April 2021

Symbiotic pectin microparticles with native Jerusalem artichoke (Helianthus tuberosus L.) enhance Lactobacillus paracasei subsp. tolerans survival

María C. Tarifa, Cristian M. Piqueras, Diego B. Genovese, Irene A. Rubel, María G. Sica, Lorena I. Brugnoni

10.1016/j.ram.2021.03.001

Highlights

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L. paracasei F2 was able to ferment inulin in vitro.
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The entrapment yield of L. paracasei F2 in pectin microparticles was ∼92%.
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Inulin from Helianthus tuberosus L. significantly enhanced L. paracasei F2 viability.
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Encapsulated synbiotic presented major survival along storage time and GI passage.

Open access

Available online 25 April 2021

Full characterization of plasmids from Achromobacter ruhlandii isolates recovered from a single patient with cystic fibrosis (CF)

Carla Steffanowski, Mariana Papalia, Andrés Iriarte, Mauricio Langleib, Laura Galanternik, Gabriel Gutkind, Vaughn Cooper, María Soledad Ramírez, Marcela Radice

10.1016/j.ram.2021.01.005

Highlights

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This is the first description and characterization of plasmids from A. ruhlandii.
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Plasmid P138R was maintained in clonally related A. ruhlandii isolates from a single patient.
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It possesses 79% similarity and 99% identity with Pmatvim-7 from P. aeruginosa.
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Nine A. ruhlandii related isolates showed variation in antibiotic resistance profiles.
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A. ruhlandii genomes displayed different antimicrobial resistance determinants.

Open access

Available online 23 April 2021

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