Responses to lifestyle interventions among individuals with distinct pre-diabetes phenotypes: A systematic review and Meta-Analysis.

Aims: To assess responses to lifestyle interventions (LIs) among individuals with distinct pre-diabetes phenotypes (isolated impaired fasting glucose [i-IFG], isolated impaired glucose tolerance [i-IGT], and combined IFG + IGT) for reducing diabetes incidence, reversing pre-diabetes, and improving glycemic control and insulin sensitivity.

Methods: PubMed, Embase, Cochrane Library, and Web of Science were searched until December 6th, 2023. We included randomized controlled trials examining responses to LIs (including diet and/or physical activity) among adults with i-IFG, i-IGT, and IFG + IGT.

Complete genome analysis of type strain of a novel bacterial family Temperatibacteraceae fam. nov., isolated from surface seawater.

Novel bacterial resources are valuable for studying bacterial taxonomy, bacterial evolution, and genome mining of novel antibiotics, antitumor agents, and immune modulators. In this study, we de novo sequenced the type strain of a novel bacterial family, Temperatibacteraceae fam. Nov.

Genomic insights into secondary metabolites of pharmaceutical utility for Hyphococcus flavus MCCC 1K03223, isolated from bathypelagic seawater.

During an attempt to screen secondary metabolites of pharmaceutical utility, we sequenced the complete genome of type strain of a novel marine bacterial genus, named genus Hyphococcus. The type strain, Hyphococcus flavus MCCC 1K03223, was isolated from bathypelagic seawater of South China Sea at a depth of 2500 m. The complete genome of strain MCCC 1K03223 is composed of a circular chromosome of 3,472,649 bp with a mean G + C content of 54.

Complete genome of Pelagovum pacificum SM1903 isolated from the marine surface oligotrophic environment.

Pelagovum pacificum SM1903, belonging to a novel genus of the family Rhodobacteraceae, was isolated from the surface seawater of the Mariana Trench. Here, we report the first complete genome sequence of the novel genus Pelagovum. The genome of strain SM1903 consists of a circular chromosome of 4,040,866 bp and two plasmids of 41,363 bp and 9705 bp, respectively.

Phylogenetic Distribution of Polysaccharide-Degrading Enzymes in Marine Bacteria.

Deconstruction is an essential step of conversion of polysaccharides, and polysaccharide-degrading enzymes play a key role in this process. Although there is recent progress in the identification of these enzymes, the diversity and phylogenetic distribution of these enzymes in marine microorganisms remain largely unknown, hindering our understanding of the ecological roles of marine microorganisms in the ocean carbon cycle. Here, we studied the phylogenetic distribution of nine types of polysaccharide-degrading enzymes in marine bacterial genomes.

Comparative genomics reveals broad genetic diversity, extensive recombination and nascent ecological adaptation in Micrococcus luteus.

Background: Micrococcus luteus is a group of actinobacteria that is widely used in biotechnology and is being thought as an emerging nosocomial pathogen. With one of the smallest genomes of free-living actinobacteria, it is found in a wide range of environments, but intraspecies genetic diversity and adaptation strategies to various environments remain unclear. Here, comparative genomics, phylogenomics, and genome-wide association studies were used to investigate the genomic diversity, evolutionary history, and the potential ecological differentiation of the species.

Genomic insights into antioxidant activities of Pyruvatibacter mobilis CGMCC 1.15125, a pyruvate-requiring bacterium isolated from the marine microalgae culture.

Pyruvate is a well-known scavenger of reactive oxygen species (ROS) like hydrogen peroxide and could prevent cells from oxidative damage. A pyruvate-requiring marine bacterium, Pyruvatibacter mobilis CGMCC 1.15125 (=KCTC 42509), was isolated from the culture broth of a photosynthetic marine microalga.

Evolutionary Trajectory of the Replication Mode of Bacterial Replicons.

As typical bacterial replicons, circular chromosomes replicate bidirectionally and circular plasmids replicate either bidirectionally or unidirectionally. Whereas the finding of chromids (plasmid-derived chromosomes) in multiple bacterial lineages provides circumstantial evidence that chromosomes likely evolved from plasmids, all experimentally assayed chromids were shown to use bidirectional replication. Here, we employed a model system, the marine bacterial genus , members of which consistently carry a chromosome and a chromid.

Complete Genomic Sequence of Pseudoalteromonas sp. Strain SAO4-4, a Protease-Producing Bacterium Isolated from Seawater of the Atlantic Ocean.

The complete genome of sp. strain SAO4-4, a protease-producing bacterium from seawater, is composed of two circular chromosomes and one plasmid. This genome sequence will provide a better understanding of the ecological roles of protease-producing bacteria in the degradation of organic matter in marine aquatic environments.

Complete genome sequence of Pseudoalteromonas espejiana DSM9414, an amino-acid-requiring strain from seawater.

Strain DSM9414, the type strain of Pseudoalteromonas espejiana, is a Gram-negative, and amino-acid-requiring stain isolated from seawater off the coast of Northern California. In this study, we report the complete genome sequence of Pseudoalteromonas espejiana DSM9414. The genome (4,500,451bp; 40.

Complete genome sequence of a marine bacterium with two chromosomes, Pseudoalteromonas translucida KMM 520(T).

Bacteria with multiple chromosomes provide new insights into the evolution of multipartite genome structures and bacterial survival strategies. In this study, we report the complete genome sequence of Pseudoalteromonas translucida KMM 520(T), which contains two circular chromosomes and comprises 4,147,593 bp with a mean G+C content of 40.1%.

Insight into the genome sequence of a sediment-adapted marine bacterium Neptunomonas antarctica S3-22(T) from Antarctica.

Neptunomonas antarctica S3-22(T) was isolated from marine sediment of the Nella Fjord, Antarctica. Here we report the draft genome sequence of N. antarctica, which comprises 4,568,828 bp with a mean G+C content of 45.

Comparative transcriptome analysis reveals that lactose acts as an inducer and provides proper carbon sources for enhancing exopolysaccharide yield in the deep-sea bacterium Zunongwangia profunda SM-A87.

Many marine bacteria secrete exopolysaccharides (EPSs) that have important ecological and physiological functions. Numerous nutritional and environmental factors influence bacterial EPS production. However, the regulatory mechanisms of EPS production are poorly understood.

Deep RNA sequencing reveals a high frequency of alternative splicing events in the fungus Trichoderma longibrachiatum.

Background: Alternative splicing is crucial for proteome diversity and functional complexity in higher organisms. However, the alternative splicing landscape in fungi is still elusive.

Results: The transcriptome of the filamentous fungus Trichoderma longibrachiatum was deep sequenced using Illumina Solexa technology.

Comparative genomics of the marine bacterial genus Glaciecola reveals the high degree of genomic diversity and genomic characteristic for cold adaptation.

To what extent the genomes of different species belonging to one genus can be diverse and the relationship between genomic differentiation and environmental factor remain unclear for oceanic bacteria. With many new bacterial genera and species being isolated from marine environments, this question warrants attention. In this study, we sequenced all the type strains of the published species of Glaciecola, a recently defined cold-adapted genus with species from diverse marine locations, to study the genomic diversity and cold-adaptation strategy in this genus.

Comparative genomics provide insights into evolution of trichoderma nutrition style.

Saprotrophy on plant biomass is a recently developed nutrition strategy for Trichoderma. However, the physiology and evolution of this new nutrition strategy is still elusive. We report the deep sequencing and analysis of the genome of Trichoderma longibrachiatum, an efficient cellulase producer.

Genome sequences of type strains of seven species of the marine bacterium Pseudoalteromonas.

There are over 30 species in the marine bacterial genus Pseudoalteromonas. However, our knowledge about this genus is still limited. We sequenced the genomes of type strains of seven species in the genus, facilitating the study of the physiology, adaptation, and evolution of this genus.

Genome sequence of the cycloprodigiosin-producing bacterial strain Pseudoalteromonas rubra ATCC 29570(T).

The cycloprodigiosin biosynthetic gene cluster has not been reported. We sequenced the genome of a cycloprodigiosin-producing bacterial strain, Pseudoalteromonas rubra ATCC 29570(T). Analysis revealed a probable cycloprodigiosin biosynthetic cluster, providing a good model for the study of cycloprodigiosin synthesis and regulation.