Vol. 54.Issue. 3. July - September 2022 | Revista Argentina de Microbiología

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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S. Enteritidis 5694 biofilm lifestyle is less virulent than planktonic cells.
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S. Enteritidis 5694 biofilm shows an impaired invasiveness of no phagocytic cells.
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S. Enteritidis 5694 biofilm induces a diminished inflammatory response.
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S. Enteritidis 5694–host interaction varies with the bacterial lifestyle.

Open access

Report of two events of nosocomial outbreak and pseudo-outbreak due to contamination with Achromobacter spp.

Liliana Clara, María Ines Staneloni, Estela Salazar, Graciela Greco, Mariangeles Visus, Alicia Lizzi, Valeria Alexander, Gabriel Gutkind, ... Mariana Papalia

Rev Argent Microbiol. 2022;54:175-80

Highlights

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Description of two events of nosocomial Achromobacter spp. outbreak and pseudo-outbreak.
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Contamination of sodium citrate blood collection tubes with Achromobacter insuavis.
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Chlorhexidine soap contaminated with Achromobacter spp. caused infections.
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Molecular approaches were critical to achieve the accurate species identification.
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The multidisciplinary work was essential to elucidate the epidemiological situation.

Open access

Agentes antimicrobianos

Biosíntesis inducida de fengicina y surfactina en una cepa de Bacillus amyloliquefaciens con actividad oomiceticida sobre zoosporas de Phytophthora capsica

Nancy Ley-López, José Basilio Heredia, Cesar San Martín-Hernández, J. Ramón Ibarra-Rodríguez, Miguel Ángel Angulo-Escalante, Raymundo Saúl García-Estrada

Rev Argent Microbiol. 2022;54:181-91

Open access

Characterization and antimicrobial susceptibility of coagulase-positive Staphylococcus isolated in a veterinary teaching hospital in Chile

Francisco Abusleme, Nicolás Galarce, Mario Quezada-Aguiluz, Daniela Iragüen, Gerardo González-Rocha

Rev Argent Microbiol. 2022;54:192-202

Highlights

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Carriage of MRS strains is statistically higher in veterinarians than in owners.
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An important percentage of the strains was resistant to clindamycin.
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This is the first report describing humans carrying MRSP in Chile.

Open access

Microbiología clínica y enfermedades infecciosas

Trichophyton benhamiae, un dermatofito zoofílico emergente en Argentina con reservorio en cobayos: descripción de 7 casos en un hospital de la Ciudad Autónoma de Buenos Aires

Ivana Maldonado, María Elisa Elisiri, Marina Monaco, Alejandra Hevia, Margarita Larralde, Bárbara Fox, Nicolás Refojo, Ricardo Iachini, ... Liliana Fernández-Canigia

Rev Argent Microbiol. 2022;54:203-8

Highlights

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Primera descripción en Argentina de dermatofitosis por Trichophyton benhamiae.
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El reservorio de T. benhamiae fueron los cobayos.
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Las lesiones por este dermatofito en niños suelen ser inflamatorias.
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El diagnóstico de certeza se debe realizar por proteómica o genómica.
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La mayoría de los casos requirieron tratamiento antifúngico sistémico.

Open access

COVID-19 associated with disseminated histoplasmosis in a kidney transplant patient

Ivana Maldonado, María Elisa Elisiri, Liliana Fernández-Canigia, Ana Victoria Sánchez, Liana López, Adriana I. Toranzo, Cecilia López-Joffre, Sol González-Fraga, Cristina Elena Canteros

Rev Argent Microbiol. 2022;54:209-14

Highlights

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First report of histoplasmosis and COVID-19 in a renal transplant recipient.
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Rapid diagnosis and correct treatment of clinically suspected histoplasmosis facilitates a positive patient's outcome.
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Histoplasmosis should be suspected as a differential diagnosis in patients with pneumonia in endemic areas.

Open access

Microbiología de alimentos

Calidad microbiológica de la carne picada y detección de patógenos en muestras ambientales de carnicerías de la ciudad de Tandil, provincia de Buenos Aires, Argentina

María Julia Ruiz, Nora Lia Padola, Gerardo Leotta, Rocío Colello, Juan Passucci, Edgardo Rodríguez, Daniel Fernández Fellenz, Alejandra Krüger, ... Analía Inés Etcheverría

Rev Argent Microbiol. 2022;54:215-9

Highlights

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Se observó riesgo bajo y buenas condiciones higiénico-sanitarias en carnicerías.
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El 75,0% de las muestras no cumplió con los parámetros microbiológicos.
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Se sugiere identificar desvíos e implementar mejoras continuas.

Open access

Can dark septate endophytic fungi (DSE) mobilize selectively inorganic soil phosphorus thereby promoting sorghum growth? A preliminary study

Osvaldo Barresi, Raúl S. Lavado, Viviana M. Chiocchio

Rev Argent Microbiol. 2022;54:220-3

Highlights

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DSE fungi selectively mobilize insoluble phosphates from soils.
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There was a positive effect of Curvularia sp. on sorghum growth.
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The absorption of P was not clearly related to the capacity of DSE fungi to solubilize it.

Open access

Microbiología agrícola, ambiental e industrial

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

Rev Argent Microbiol. 2022;54:224-32

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

Characterization and survival of broad-spectrum biocontrol agents against phytopathogenic fungi

Saba Azeem, Syed Inayatullah Agha, Neelam Jamil, Bushra Tabassum, Shan Ahmed, Asif Raheem, Nusrat Jahan, Niaz Ali, Anwar Khan

Rev Argent Microbiol. 2022;54:233-42

Highlights

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Bacteria had broad-spectrum activity against phytopathogenic fungi (>50% inhibition).
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Selected isolates were identified with molecular methods and analyzed for plant growth-promoting activities.
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The selected isolates had a good survival rate in a cost-effective medium.
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Assessed medium can be used for commercial fermentation of bio-control agents.

Open access

Fist report on fumagillin production by Aspergillus fumigatus sensu stricto gliotoxigenic strains recovered from raw cow milk and clinical samples in Argentina

Verónica A. Alonso, Marina A. Velasco Manini, Gabriela A. Pena, Lilia R. Cavaglieri

Rev Argent Microbiol. 2022;54:243-6

Highlights

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A. fumigatus strains from farm and clinical samples were able to produce fumagillin.
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A. fumigatus strains were gliotoxin and fumagillin producers.
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Fumagillin producers represent public health risk of toxin transference to raw milk.

Open access

Artículo especial

SARS-CoV-2 and Chlamydia pneumoniae co-infection: A review of the literature

María Celia Frutos, Javier Origlia, María Lucia Gallo Vaulet, María Elena Venuta, Miriam Gabriela García, Rita Armitano, Lucía Cipolla, María Julia Madariaga, ... Grupo de Trabajo Bacterias Atípicas, Sociedad Argentina de Bacteriología, Micología y Parasitología Clínicas (SADEBAC), División de la Asociación Argentina de Microbiología

Rev Argent Microbiol. 2022;54:247-57

Highlights

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Bacterial co-pathogens are commonly identified in viral respiratory infections.
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Co-infection between C. pneumoniae and SARS-CoV-2 has been reported in the literature.
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Information of co-infection in COVID-19 patients is scarce.
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Evidence of co-infections is needed to support developing skills in antimicrobial policy.

Open access

Obituario

Tributo a la Dra. Hebe Mabel Bianchini

Rev Argent Microbiol. 2022;54:258-9

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