Publications by authors named "Olayinka Ayobami Aiyegoro"

Aims: Limosilactobacillus reuteri ZJ625 and Ligilactobacillus salivarius ZJ614 are potential probiotic bacteria. The mechanisms of enhanced benefits by muti-strain probiotics are yet fully understood. We elucidated the influence of co-culturing on the metabolite profiles of Limosilactobacillus reuteri ZJ625 and Ligilactobacillus salivarius ZJ614 to decipher the impacts of co-culturing on metabolic interactions between the strains.

View Article and Find Full Text PDF
Article Synopsis
  • This study investigates the interactions between two probiotic bacteria, Limosilactobacillus reuteri ZJ625 and Ligilactobacillus salivarius ZJ614, focusing on their co-culture effects on protein expression.
  • Using liquid-chromatography mass-spectrometry (LC-MS), researchers identified various differentially expressed proteins that mediate important functions like quorum sensing and carbohydrate metabolism.
  • The findings suggest that the presence of one strain significantly influences the proteome of the other, highlighting the complexity of cell-to-cell communication among these probiotics in mixed cultures.
View Article and Find Full Text PDF

The concept of probiotics is witnessing increasing attention due to its benefits in influencing the host microbiome and the modulation of host immunity through the strengthening of the gut barrier and stimulation of antibodies. These benefits, combined with the need for improved nutraceuticals, have resulted in the extensive characterization of probiotics leading to an outburst of data generated using several 'omics' technologies. The recent development in system biology approaches to microbial science is paving the way for integrating data generated from different omics techniques for understanding the flow of molecular information from one 'omics' level to the other with clear information on regulatory features and phenotypes.

View Article and Find Full Text PDF

Here, we report the draft genome sequence of Enterobacter hormaechei SRU4.4. This bacterium (genome size = 4,440,516 bp; coding sequences = 4,100; G+C content = 56%) encodes for genes attributed to plant growth promotion (PGP).

View Article and Find Full Text PDF

Serratia marcescens SGT5.3, a potential plant growth-promoting strain with a wide range of functions, was isolated from the surface of Capsicum annuum fruit. Here, we report the whole-genome sequence of this bacterium.

View Article and Find Full Text PDF
Article Synopsis
  • Lactic acid bacteria like ZJ614 and ZJ625 are gaining popularity as dietary supplements due to their health benefits, prompting research into their growth requirements.
  • The study examined the nutritional needs of these bacteria using a chemically defined medium (CDM) with 49 ingredients and determined minimal requirements through single-omission experiments (SOEs).
  • Growth data showed that excluding certain nutrients significantly reduced growth rates, and logistic models accurately described their growth patterns, with both strains thriving in the complete and minimal media.
View Article and Find Full Text PDF

A synergy between the rumen microbiota and the host genetics has created a symbiotic relationship, beneficial to the host's health. In this study, the association between the host genetics and rumen microbiome of Damara and Meatmaster sheep was investigated. The composition of rumen microbiota was estimated through the analysis of the V3-V4 region of the 16S rRNA gene, while the sheep blood DNA was genotyped with Illumina OvineSNP50 BeadChip and the genome-wide association (GWA) was analyzed.

View Article and Find Full Text PDF

Biological control of plant pathogens, particularly using microbial antagonists, is posited as the most effective, environmentally-safe, and sustainable strategy to manage plant diseases. However, the roles of antagonists in controlling bacterial wilt, a disease caused by the most devastating and widely distributed pathogen of sweet peppers (i.e.

View Article and Find Full Text PDF

The effects on rumen microbial communities of direct-fed probiotics, and , singly and in combination as feed supplements to both the Boer and Speckled goats were studied using the Illumina Miseq platform targeting the V3-V4 region of the 16S rRNA microbial genes from sampled rumen fluid. Thirty-six goats of both the Boer and Speckled were divided into five experimental groups: (T1) = diet + ; (T2) = diet + ; (T3) = diet + + ; (T4, positive control) = diet + antibiotic and (T5, negative control) = diet without antibiotics and without probiotics. Our results revealed that Bacteroidetes, Firmicutes, TM7, Proteobacteria, and Euryarchaeota dominate the bacterial communities.

View Article and Find Full Text PDF

The genome of PNW3 was assessed for probiotic and safety potentials. The genome was completely sequenced, assembled using SPAdes, and thereafter annotated with NCBI prokaryotic genome annotation pipeline (PGAP) and rapid annotation using subsystem technology (RAST). Further downstream assessment was determined using appropriate bioinformatics tools.

View Article and Find Full Text PDF

This study evaluates whole-genome sequence of Lactobacillus reuteri PNW1 and identifies its safety genes that may qualify it as a putative probiotic. It further extracted the bacteriocin produced by the strain and tested its effectiveness against pathogenic STEC E. coli O177.

View Article and Find Full Text PDF

Fresh produce vegetables are colonized by different bacterial species, some of which are antagonistic to microbes that cause postharvest losses. However, no comprehensive assessment of the diversity and composition of bacteria inhabiting surfaces of fresh pepper plants grown under different conditions has been conducted. In this study, 16S RNA amplicon sequencing was used to reveal bacterial communities inhabiting the surfaces of red and green pepper (fungicides-treated and non-fungicides-treated) grown under hydroponic and open field conditions.

View Article and Find Full Text PDF
Article Synopsis
  • The WHO identified Enterobacteriaceae resistance to third-generation cephalosporins as critical for future research, highlighting the need for understanding antibiotic resistance in bacteria.
  • A study from a South African wastewater treatment plant found varying levels of cefotaxime-resistant E. coli, with certain isolates showing resistance to multiple antibiotics and carrying specific resistance genes.
  • The research revealed a significant presence of extended spectrum-beta-lactamase genes and some co-occurrence of resistance genes, as well as a classification of isolates into enterotoxigenic and enteroaggregative E. coli subtypes.
View Article and Find Full Text PDF

Management and disposal of pig farm seepage constitute a serious environmental challenge, and seepage discharge from agricultural waste-water is considered to be one of the greatest contributors of organic substances, bacterial pathogens, and antibiotic resistance genes into the environment. The objectives of this study were to assess the level of bacteriological pollution and to identify the resident antibiotic-resistant genes of culturable bacteria from a studied pig farm seepage. Enumeration of the viable bacterial cell of plated bacteria suspensions (10 to 10  cfu/mL) was performed; also, identification of pure bacterial colonies was done using an API 20E bacterial identification kit.

View Article and Find Full Text PDF

is a plant that has been used amongst others medicinally to treat wounds. The aim of this study was to assess the wound healing ability of Hot water, methanol, ethyl acetate, and hexane extracts were prepared. Thin layer chromatography (TLC) and ultra-performance liquid chromatography time of flight mass spectrometry (UPLC-TOF-MS) were used to determine the phytochemical classes and genus specific compounds present in the plant.

View Article and Find Full Text PDF