Gloria Soberón‐Chávez
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View article: Phylogrouping of Pseudomonas aeruginosa from burn patients reveals distinct group 3 characteristics
Phylogrouping of Pseudomonas aeruginosa from burn patients reveals distinct group 3 characteristics Open
Introduction. Pseudomonas aeruginosa is a bacterial pathogen that causes acute infections in burned patients which can be very difficult to treat due to the high frequency of antibiotic-resistant strains. In 2019, whole-genome analysis led…
View article: Avirulent <i>Pseudomonas aeruginosa</i> T3SS-negative strains belonging to Clade 5 produce variable quantities of secondary metabolites
Avirulent <i>Pseudomonas aeruginosa</i> T3SS-negative strains belonging to Clade 5 produce variable quantities of secondary metabolites Open
Pseudomonas species are ubiquitous in the environment and serve as valuable source of enzymes and secondary metabolites for industrial applications. Pseudomonas aeruginosa secretes metalloproteases, such as elastase LasB and produces bioac…
View article: Synthesis of di-rhamnolipids by the avirulent, mono-rhamnolipid producing strain Pseudomonas aeruginosa ATCC 9027
Synthesis of di-rhamnolipids by the avirulent, mono-rhamnolipid producing strain Pseudomonas aeruginosa ATCC 9027 Open
To construct a derivative of the avirulent Pseudomonas aeruginosa ATCC 9027 that produces high levels of di-rhamnolipid, that has better physico-chemical characteristics for biotechnological applications than mono-rhamnolipid, which is the…
View article: The quorum sensing regulator RhlR positively controls the expression of the type III secretion system in Pseudomonas aeruginosa PAO1
The quorum sensing regulator RhlR positively controls the expression of the type III secretion system in Pseudomonas aeruginosa PAO1 Open
Pseudomonas aeruginosa is an opportunist bacterium that causes acute and chronic infections. During acute infections, the type III secretion system (T3SS) plays a pivotal role in allowing the bacteria to translocate effectors such as ExoS,…
View article: Editorial: Microbial biosurfactants: updates on their biosynthesis, production and applications
Editorial: Microbial biosurfactants: updates on their biosynthesis, production and applications Open
EDITORIAL article Front. Bioeng. Biotechnol., 05 June 2024Sec. Industrial Biotechnology Volume 12 - 2024 | https://doi.org/10.3389/fbioe.2024.1433035
View article: <i>Pseudomonas aeruginosa</i> Isolates from Water Samples of the Gulf of Mexico Show Similar Virulence Properties but Different Antibiotic Susceptibility Profiles than Clinical Isolates
<i>Pseudomonas aeruginosa</i> Isolates from Water Samples of the Gulf of Mexico Show Similar Virulence Properties but Different Antibiotic Susceptibility Profiles than Clinical Isolates Open
Pseudomonas aeruginosa is an opportunistic pathogen found in a wide variety of environments, including soil, water, and habitats associated with animals, humans, and plants. From a One Health perspective, which recognizes the interconnecte…
View article: Heterologous production of rhamnolipids in <i>Pseudomonas chlororaphis</i> subsp chlororaphis <scp>ATCC</scp> 9446 based on the endogenous production of <i>N</i> ‐acyl‐homoserine lactones
Heterologous production of rhamnolipids in <i>Pseudomonas chlororaphis</i> subsp chlororaphis <span>ATCC</span> 9446 based on the endogenous production of <i>N</i> ‐acyl‐homoserine lactones Open
Rhamnolipids (RL) are biosurfactants naturally produced by the opportunistic pathogen Pseudomonas aeruginosa . Currently, RL are commercialized for various applications and produced by Pseudomonas putida due to the health risks associated …
View article: Pseudomonas aeruginosa strains belonging to phylogroup 3 frequently exhibit an atypical quorum sensing response: the case of MAZ105, a tomato rhizosphere isolate
Pseudomonas aeruginosa strains belonging to phylogroup 3 frequently exhibit an atypical quorum sensing response: the case of MAZ105, a tomato rhizosphere isolate Open
Graphical abstract A Pseudomonas aeruginosa MAZ105 strain belonging to phylogroup 3 has a defective Pqs QS system due to a polar mutation in pqsA but can produce pyocyanin because it can express PqsE in low-phosphate medium.
View article: Some insights on traditional and novel approaches in microbial biotechnology that contribute to the United Nations Sustainable Development Goals
Some insights on traditional and novel approaches in microbial biotechnology that contribute to the United Nations Sustainable Development Goals Open
All these goals are interconnected, and there are many ways that microbial technologies have impacted each of them. Therefore, the examples of microbial technologies that may impact SDG that I include in this 'Burning Questions' editorial …
View article: Defining the regulatory mechanisms of sigma factor RpoS degradation in <i>Azotobacter vinelandii</i> and <i>Pseudomonas aeruginosa</i>
Defining the regulatory mechanisms of sigma factor RpoS degradation in <i>Azotobacter vinelandii</i> and <i>Pseudomonas aeruginosa</i> Open
In several Gram‐negative bacteria, the general stress response is mediated by the alternative sigma factor RpoS, a subunit of RNA polymerase that confers promoter specificity. In Escherichia coli , regulation of protein levels of RpoS invo…
View article: Unraveling the regulation of pyocyanin synthesis by RsmA through MvaU and RpoS in <i>Pseudomonas aeruginosa</i> ID4365
Unraveling the regulation of pyocyanin synthesis by RsmA through MvaU and RpoS in <i>Pseudomonas aeruginosa</i> ID4365 Open
Pyocyanin is a phenazine with redox activity produced by Pseudomonas aeruginosa that is harmful to other bacteria and eukaryotic organisms by generating reactive oxygen species. Gene regulation of pyocyanin synthesis has been addressed in …
View article: Pseudomonas aeruginosa LasR overexpression leads to a RsaL-independent pyocyanin production inhibition in a low phosphate condition
Pseudomonas aeruginosa LasR overexpression leads to a RsaL-independent pyocyanin production inhibition in a low phosphate condition Open
Several Pseudomonas aeruginosa virulence-related traits like pyocyanin are regulated by an intricate regulatory network called quorum sensing (QS) that relies on transcriptional regulators that are activated through binding to a self-produ…
View article: Tracking the Origins of Pseudomonas aeruginosa Phylogroups by Diversity and Evolutionary Analysis of Important Pathogenic Marker Genes
Tracking the Origins of Pseudomonas aeruginosa Phylogroups by Diversity and Evolutionary Analysis of Important Pathogenic Marker Genes Open
Pseudomonas aeruginosa is a widespread environmental bacterium and an opportunistic pathogen that represents a health hazard due to its production of virulence factors and its high antibiotic resistance. The genome of most of the strains b…
View article: Editorial: Biosurfactants: New Insights in Their Biosynthesis, Production and Applications
Editorial: Biosurfactants: New Insights in Their Biosynthesis, Production and Applications Open
EDITORIAL article Front. Bioeng. Biotechnol., 05 October 2021 | https://doi.org/10.3389/fbioe.2021.769899
View article: The Rhl Quorum-Sensing System Is at the Top of the Regulatory Hierarchy under Phosphate-Limiting Conditions in Pseudomonas aeruginosa PAO1
The Rhl Quorum-Sensing System Is at the Top of the Regulatory Hierarchy under Phosphate-Limiting Conditions in Pseudomonas aeruginosa PAO1 Open
Pseudomonas aeruginosa is an important pathogen, considered a priority for the development of new therapeutic strategies. An important approach to fight its infections relies on blocking quorum sensing.
View article: Rhamnolipids produced by <i>Pseudomonas</i> : from molecular genetics to the market
Rhamnolipids produced by <i>Pseudomonas</i> : from molecular genetics to the market Open
Summary Rhamnolipids are biosurfactants with a wide range of industrial applications that entered into the market a decade ago. They are naturally produced by Pseudomonas aeruginosa and some Burkholderia species. Occasionally, some strains…
View article: Virulence factors regulation by the quorum-sensing and Rsm systems in the marine strain <i>Pseudomonas aeruginosa</i> ID4365, a natural mutant in <i>lasR</i>
Virulence factors regulation by the quorum-sensing and Rsm systems in the marine strain <i>Pseudomonas aeruginosa</i> ID4365, a natural mutant in <i>lasR</i> Open
Pseudomonas aeruginosa is an opportunistic human pathogen that is able to produce several virulence factors such as pyocyanin, rhamnolipids and elastase. In the clinical reference strain PAO1, synthesis of these virulence factors is regula…
View article: Tracking the genome of four Pseudomonas aeruginosa isolates that have a defective Las quorum-sensing system, but are still virulent
Tracking the genome of four Pseudomonas aeruginosa isolates that have a defective Las quorum-sensing system, but are still virulent Open
In this work we analysed the whole genome extended multilocus sequence typing (wgMLST) of four Pseudomonas aeruginosa strains that are characterized by being virulent despite having a defective Las quorum-sensing (QS) system, and compare t…
View article: Rhamnolipids stabilize quorum sensing mediated cooperation in <i>Pseudomonas aeruginosa</i>
Rhamnolipids stabilize quorum sensing mediated cooperation in <i>Pseudomonas aeruginosa</i> Open
Pseudomonas aeruginosa is one of the main models to study social behaviors in bacteria since it synthesizes several exoproducts, including exoproteases and siderophores and release them to the environment. Exoproteases and siderophores are…
View article: Efectos de la Pandemia de Coronavirus COVID-19 en Estudiantes Extranjeros y su Posible Impacto en los Programas de Estudio en el Extranjero en el Futuro
Efectos de la Pandemia de Coronavirus COVID-19 en Estudiantes Extranjeros y su Posible Impacto en los Programas de Estudio en el Extranjero en el Futuro Open
The purpose of this project is to discover the effects that the COVID-19 pandemic had on the study abroad experience of American students participating in a study abroad program in Lyon, France during the 2019-20 academic year, and to eval…
View article: The Evolution of Bacteria Can Produce Chimeric Creatures: The Case of Azotobacter vinelandii
The Evolution of Bacteria Can Produce Chimeric Creatures: The Case of Azotobacter vinelandii Open
The evolution of bacteria is different from the evolution of other organisms. While we get our genetic information solely from our parents, bacteria can get part of theirs from other sources. In this article, we describe one of these chime…
View article: A Novel Two-Component System, Encoded by the sco5282/sco5283 Genes, Affects Streptomyces coelicolor Morphology in Liquid Culture
A Novel Two-Component System, Encoded by the sco5282/sco5283 Genes, Affects Streptomyces coelicolor Morphology in Liquid Culture Open
Streptomyces are mycelial bacteria adapted to grow in soil. They have become important producers of biomolecules with medical applications, but their growth in industrial fermenters is challenged by their peculiar morphology in liqu…
View article: Corrigendum: Variability of Bacterial Essential Genes Among Closely Related Bacteria: The Case of Escherichia coli
Corrigendum: Variability of Bacterial Essential Genes Among Closely Related Bacteria: The Case of Escherichia coli Open
[This corrects the article DOI: 10.3389/fmicb.2018.01059.].
View article: The Escherichia coli bcsB gene is a conditional essential gene in the context of functional cellulose synthesis
The Escherichia coli bcsB gene is a conditional essential gene in the context of functional cellulose synthesis Open
The understanding of why a gene is essential for a bacterium has implications in different research areas, such as bacterial evolution, synthetic biology and biotechnology, making the identification of essential genes a very active researc…
View article: Variability of Bacterial Essential Genes Among Closely Related Bacteria: The Case of Escherichia coli
Variability of Bacterial Essential Genes Among Closely Related Bacteria: The Case of Escherichia coli Open
The definition of bacterial essential genes has been widely pursued using different approaches. Their study has impacted several fields of research such as synthetic biology, the construction of bacteria with minimal chromosomes, the searc…
View article: Presencia de genes rhlAB, rhlR y rhlC en Pseudomonas aeruginosa nativas sobreproductoras de ramnolípidos
Presencia de genes rhlAB, rhlR y rhlC en Pseudomonas aeruginosa nativas sobreproductoras de ramnolípidos Open
Se realizó la caracterización molecular de los genes asociados a la producción de ramnolípidos (RL), en 61 cepas bacterianas de la colección del Laboratorio de Microbiología y Biotecnología Microbiana (LAMYBIM) de la Universidad Nacional M…
View article: Complete Genome Sequences of Four Extensively Drug-Resistant Pseudomonas aeruginosa Strains, Isolated from Adults with Ventilator-Associated Pneumonia at a Tertiary Referral Hospital in Mexico City
Complete Genome Sequences of Four Extensively Drug-Resistant Pseudomonas aeruginosa Strains, Isolated from Adults with Ventilator-Associated Pneumonia at a Tertiary Referral Hospital in Mexico City Open
Four extensively drug-resistant Pseudomonas aeruginosa strains, isolated from patients with pneumonia, were sequenced using PacBio RS-II single-molecule real-time (SMRT) technology. Genome sequence analysis identified great variability amo…
View article: Complete Genome Sequences of Two Pseudomonas aeruginosa Strains Isolated from Children with Bacteremia
Complete Genome Sequences of Two Pseudomonas aeruginosa Strains Isolated from Children with Bacteremia Open
Two Pseudomonas aeruginosa strains isolated from children with bacteremia in Mexico City were sequenced using PacBio RS-II single-molecule real-time (SMRT) technology. The strains consist of a 7.0- to 7.4-Mb chromosome, with a high content…
View article: Pseudomonas aeruginosa quorum-sensing response in the absence of functional LasR and LasI proteins: the case of strain 148, a virulent dolphin isolate
Pseudomonas aeruginosa quorum-sensing response in the absence of functional LasR and LasI proteins: the case of strain 148, a virulent dolphin isolate Open
Pseudomonas aeruginosa is an opportunistic pathogen that presents a complex regulatory network called 'quorum-sensing', which is responsible for the transcription of genes coding for several traits implicated in its pathogenicity. Strain 1…
View article: The Transcriptional Regulators of the CRP Family Regulate Different Essential Bacterial Functions and Can Be Inherited Vertically and Horizontally
The Transcriptional Regulators of the CRP Family Regulate Different Essential Bacterial Functions and Can Be Inherited Vertically and Horizontally Open
One of the best-studied transcriptional regulatory proteins in bacteria is the Escherichia coli catabolite repressor protein (CRP) that when complexed with 3'-5'-cyclic AMP (cAMP) changes its conformation and interacts with specific…