International Microbiology
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The signaling mechanisms involved in the dimorphic phenomenon of the Basidiomycota fungus Ustilago maydis
International Microbiology - Tập 23 - Trang 121-126 - 2020
In the present manuscript, we describe the mechanisms involved in the yeast-to-hypha dimorphic transition of the plant pathogenic Basidiomycota fungus Ustilago maydis. During its life cycle, U. maydis presents two stages: one in the form of haploid saprophytic yeasts that divide by budding and the other that is the product of the mating of sexually compatible yeast cells (sporidia), in the form of......
Assessment of the phylogenetic analysis and antimicrobial, antiviral, and anticancer activities of marine endophytic Streptomyces species of the soft coral Sarcophyton convolutum
International Microbiology - Tập 25 - Trang 133-152 - 2021
In the present work, the extensive biological activities of marine endophytic Streptomyces strains isolated from marine soft coral Sarcophyton convolutum have been demonstrated. Within fifty-one Streptomyces isolates evaluated for their hydrolytic enzymes and enzyme inhibitors productivities, six isolates showed the hyperactivities. Pharmaceutical metabolites productivities evaluated include enzym......
Bacterial communities associated with Zeldia punctata, a bacterivorous soil-borne nematode
International Microbiology - Tập 25 - Trang 207-216 - 2021
Soil inhabiting organisms are important determinants of agroecosystem productivity. Understanding the composition, the abundance, and the type of interactions established by soil microorganisms is therefore crucial to design strategies to improve agricultural practices and agroecosystem management. In this study, we collected Zeldia punctata nematodes in maize fields in South Africa and profiled t......
A new spike-in-based method for quantitative metabarcoding of soil fungi and bacteria
International Microbiology - - Trang 1-12 - 2023
Metabarcoding is a powerful tool to characterize biodiversity in biological samples. The interpretation of taxonomic profiles from metabarcoding data has been hindered by their compositional nature. Several strategies have been proposed to transform compositional data into quantitative data, but they have intrinsic limitations. Here, I propose a workflow based on bacterial and fungal cellular inte......
Traditional marketed meats as a reservoir of multidrug-resistant Escherichia coli
International Microbiology - - Trang 1-17 - 2023
This study aimed to analyze Escherichia coli from marketed meat samples in Peru. Sixty-six E. coli isolates were recovered from 21 meat samples (14 chicken, 7 beef), and antimicrobial resistance levels and the presence of mechanisms of antibiotic resistance, as well as clonal relationships and phylogeny of colistin-resistant isolates, were established. High levels of antimicrobial resistance were ......
Safety, functional properties and technological performance in whey-based media of probiotic candidates from human breast milk
International Microbiology - Tập 22 - Trang 265-277 - 2018
We aimed at isolating and characterising microorganisms present in human breast milk with probiotic potential. In an 8-week postpartum sampling period, two strains of bifidobacteria (Bifidobacterium longum LM7a and Bifidobacterium dentium LM8a’) and four strains of lactobacilli were isolated, all during the first 4-week postpartum. B. longum LM7a and B. dentium LM8a’, together with four strains pr......
Molecular characterization of the multi-drug resistant Myroides odoratimimus isolates: a whole genome sequence-based study to confirm carbapenem resistance
International Microbiology -
Inhibition of biofilm formation, quorum sensing and virulence factor production in Pseudomonas aeruginosa PAO1 by selected LasR inhibitors
International Microbiology - Tập 26 - Trang 851-868 - 2023
The quorum sensing network of Pseudomonas aeruginosa mediates the regulation of genes controlling biofilm formation and virulence factors. The rise of drug resistance to Pseudomonas aeruginosa infections has made quorum sensing–regulated biofilm formation in clinical settings a major issue. In the present study, LasR inhibitors identified in our previous study were evaluated for their antibiofilm ......
The branching order and phylogenetic placement of species from completed bacterial genomes, based on conserved indels found in various proteins
International Microbiology - Tập 4 - Trang 187-202 - 2001
The presence of shared conserved inserts and deletions (indels or signature sequences) in proteins provides a powerful means for understanding the evolutionary relationships among the Bacteria. Using such indels, all of the main groups within the Bacteria can be defined in clear molecular terms and it has become possible to deduce that they branched from a common ancestor in the following order: ......
Utilization of diverse oligosaccharides for growth by Bifidobacterium and Lactobacillus species and their in vitro co-cultivation characteristics
International Microbiology - - Trang 1-12 - 2023
Various approaches have been used to study the relationship between prebiotics and probiotics. The utilization of different carbohydrates by probiotics depends on the biochemical properties of the enzymes and substrates required by the microbial strain. However, few studies have systematically analyzed the ability of probiotics to utilize different prebiotics. Here, we investigated the effects of ......
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