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Microbial interactions with metals and stress response

New Content ItemThe nine articles of this special issue of Biological Research address biochemical and genetic determinants of microbial response and tolerance to stressors in different biological models and environmental contexts. Individual articles provide a broad exploration of our current knowledge of response to stressors, with a special emphasis on metal metabolism and toxic compounds. This special issue highlights the field of microbial stress responses with novel contributions from colleagues and former trainees of the late Chilean Professor Claudio C. Vásquez Guzmán as a tribute to his legacy.

  1. Human Gut Microbiota (HGM) is composed of more than one thousand species, playing an important role in the health status of individuals. Dysbiosis (an HGM imbalance) is augmented as chronic kidney disease (CKD...

    Authors: María V. Miranda, Fernanda C. González, Osvaldo S. Paredes-Godoy, Mario A. Maulén, Claudio C. Vásquez† and Waldo A. Díaz-Vásquez
    Citation: Biological Research 2022 55:23
  2. The study of the stress responses in bacteria has given us a wealth of information regarding the mechanisms employed by these bacteria in aggressive or even non-optimal living conditions. This information has ...

    Authors: Derie E. Fuentes, Lillian G. Acuña and Iván L. Calderón
    Citation: Biological Research 2022 55:21
  3. Acidophilic microorganisms like Leptospirillum sp. CF-1 thrive in environments with extremely low pH and high concentrations of dissolved heavy metals that can induce the generation of reactive oxygen species (RO...

    Authors: Rivera-Araya Javier, Riveros Matías, Ferrer Alonso, Chávez Renato and Levicán Gloria
    Citation: Biological Research 2022 55:19
  4. This opinion review explores the microbiology of tellurite, TeO32− and selenite, SeO32− oxyanions, two similar Group 16 chalcogen elements, but with slightly different physicochemical properties that lead to intr...

    Authors: Janine Kessi, Raymond J. Turner and Davide Zannoni
    Citation: Biological Research 2022 55:17
  5. Tellurium is a rare metalloid that exerts high toxicity on cells, especially on bacteria, partly due to reactive oxygen species (ROS) generation. Moreover, it has also been observed that tellurite can target f...

    Authors: P. Muñoz-Diaz, K. Jiménez, R. Luraschi, F. Cornejo, M. Figueroa, C. Vera, A. Rivas-Pardo, J. M. Sandoval, C. Vásquez and F. Arenas
    Citation: Biological Research 2022 55:13
  6. The Atacama salt flat is located in northern Chile, at 2300 m above sea level, and has a high concentration of lithium, being one of the main extraction sites in the world. The effect of lithium on microorgani...

    Authors: N. Bruna, E. Galliani, P. Oyarzún, D. Bravo, F. Fuentes and J. M. Pérez-Donoso
    Citation: Biological Research 2022 55:12
  7. Listeria monocytogenes is a foodborne pathogen that causes listeriosis in humans. This pathogen activates multiple regulatory mechanisms in response to stress, and cobalamin biosynthesis might have a potential ro...

    Authors: L. Vásquez, A. Parra, A. M. Quesille-Villalobos, G. Gálvez, P. Navarrete, M. Latorre, M. Toro, M. González and A. Reyes-Jara
    Citation: Biological Research 2022 55:9
  8. Salmonella Typhimurium is a Gram-negative pathogen that causes a systemic disease in mice resembling typhoid fever. During its infective cycle, S. Typhimurium is phagocytized by macrophages and proliferates insid...

    Authors: A. C. Briones, D. Lorca, A. Cofre, C. E. Cabezas, G. I. Krüger, C. Pardo-Esté, M. S. Baquedano, C. R. Salinas, M. Espinoza, J. Castro-Severyn, F. Remonsellez, A. A. Hidalgo, E. H. Morales and C. P. Saavedra
    Citation: Biological Research 2022 55:8
  9. Aerobic metabolism generates reactive oxygen species that may cause critical harm to the cell. The aim of this study is the characterization of the stress responses in the model aromatic-degrading bacterium Parab...

    Authors: Valentina Méndez, Laura Rodríguez-Castro, Roberto E. Durán, Gabriel Padrón and Michael Seeger
    Citation: Biological Research 2022 55:7