Comparative Genomics of Strains Isolated from Different Ecological Niches.

The genome can change to adapt to different ecological niches. We compared four genomes from a Mexican hospital and 59 genomes from GenBank from different niches, such as urine, sputum, and environmental. The ST analysis showed that high-risk STs (ST235, ST773, and ST27) were present in the genomes of the three niches from GenBank, and the STs of Mexican genomes (ST167, ST2731, and ST549) differed from the GenBank genomes.

A Plasmid Carrying in Belonging to a Novel Resistance Plasmid Family.

and are the most detected plasmid-encoded carbapenemase genes in . Previous studies have reported plasmid sequences carrying variants, except . In this study, we aimed to characterize a plasmid carrying in a strain isolated from a Mexican hospital.

Evaluation of process involved in the production of aromatic compounds in Gram-negative bacteria isolated from vanilla (Vanilla planifolia ex. Andrews) beans.

Aim: The present investigation was aimed at isolating and identifying bacterial strains from cured vanilla beans. Additionally, the study focused on evaluating bacterial processes pertaining to the aromatic compounds production (ACP).

Methods And Results: Three bacteria were isolated from Vanilla planifolia beans, previously subjected to the curing process.

Resistome and a Novel -Harboring Plasmid of an Strain from a Children's Hospital in Puebla, Mexico.

complex isolates have been frequently associated with hospital and community infections, with being the most common. Other spp. not belonging to this complex also cause infections in hospital settings, and the incidence has increased over the past few years.

Identification of a N-acyl Homoserine Lactone Type Quorum Sensing System and a New LysR-type Transcriptional Regulator Associated with Antimicrobial Activity and Swarming in UAPS07070.

A random transposition mutant library of UAPS07070 was analyzed for searching mutants with impaired microbial antagonism. Three derivates showed diminished antimicrobial activity against a sensitive strain. The mutated loci showed high similarity to the quorum sensing genes of the AHL-synthase and its regulator.

Characterization of antimicrobial resistance mechanisms in carbapenem-resistant carrying IMP variants recovered from a Mexican Hospital.

Purpose: infections in hospitals constitute an important problem due to the increasing multidrug resistance (MDR) and carbapenems resistance. The knowledge of resistance mechanisms in strains is an important issue for an adequate antimicrobial treatment. Therefore, the objective was to investigate other antimicrobial resistance mechanisms in MDR strains carrying , make a partial plasmids characterization, and determine if modifications in gene affect the expression of the OprD protein.

Compatible bacterial mixture, tolerant to desiccation, improves maize plant growth.

Plant growth-promoting rhizobacteria (PGPR) increase plant growth and crop productivity. The inoculation of plants with a bacterial mixture (consortium) apparently provides greater benefits to plant growth than inoculation with a single bacterial strain. In the present work, a bacterial consortium was formulated containing four compatible and desiccation-tolerant strains with potential as PGPR.

Culturable Facultative Methylotrophic Bacteria from the Cactus Neobuxbaumia macrocephala Possess the Locus xoxF and Consume Methanol in the Presence of Ce and Ca.

Methanol-consuming culturable bacteria were isolated from the plant surface, rhizosphere, and inside the stem of Neobuxbaumia macrocephala. All 38 isolates were facultative methylotrophic microorganisms. Their classification included the Classes Actinobacteria, Sphingobacteriia, Alpha-, Beta-, and Gammaproteobacteria.

Flagellar expression in clinical isolates of non-typeable Haemophilus influenzae.

Purpose: Haemophilus influenzae is a commensal organism found in the upper respiratory tract of humans. When H. influenzae becomes a pathogen, these bacteria can move out of their commensal niche and cause multiple respiratory tract diseases such as otitis media, sinusitis, conjunctivitis and bronchitis in children, and chronic obstructive pulmonary disease in adults.

First evidence of polar flagella in Klebsiella pneumoniae isolated from a patient with neonatal sepsis.

The genus Klebsiella belongs to the family Enterobacteriaceae, and is currently considered to be non-motile and non-flagellated. In the present work, 25 Klebsiella strains isolated from nosocomial infections were assessed for motility under different growth conditions. One Klebsiella isolate, KpBUAP021, demonstrated a swim-like motility phenotype.