A high cell-surface hydrophobic bacterium, strain A18, was isolated from a waste digestion system in Chaozhou, China. Cells of strain A18 were Gram-stain-positive, aerobic, non-spore-forming, non-motile, and rod-shaped. Phylogenetic analyses based on the 16S rRNA gene showed that strain A18 shared less than 94.2% sequence similarity to all validated species in the family Chitinophagaceae, and formed a distinct lineage close to genera Niabella and Terrimonas in the neighbor-joining tree, indicating that strain A18 is a novel species. Genome-based phylogenetic analyses revealed that strain A18 is affiliated to the genus Niabella. The cellular components, including iso-C and iso-C G as the major fatty acids, menaquinone-7 as the respiratory quinone and a DNA G + C content of 40.54% supported strain A18 as a member of the genus Niabella. However, the physiological and biochemical properties, such as enzyme activities, carbon source utilization and C 3-OH as another major fatty acids, distinguished strain A18 from its close related species. Therefore, the name Niabella digestorum sp. nov. is proposed for this novel species. The type strain is A18 (= GDMCC 1.3242 = KCTC 92386).
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1007/s00284-024-03873-9 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Comparative pathogenicity of entomopathogenic nematodes symbiotic bacteria- distinct intra- and inter-species variation.
Microb Pathog
January 2025
Department of Plant Protection, Faculty of Agriculture, Azarbaijan Shahid Madani University, Tabriz, Iran.
This study aimed to achieve two main objectives: first, to determine whether the virulence factors of symbiotic bacteria of entomopathogenic nematodes (EPNs) against insect hosts are cell-associated or secreted, and to shed light on the underlying mechanisms of pathogenicity; and second, to identify and evaluate the standalone pathogenicity of symbiotic bacteria associated with entomopathogenic nematodes against Tenebrio molitor. Three bacterial species, Xenorhabdus nematophila (A41, SC, A18 and SF), Photorhabdus kayaii, and P. thracensis, were isolated and characterized via phylogenetic analysis of 16S-rRNA and gyrB genes.
View Article and Find Full Text PDFTechno-strain and techno-insecurity are associated with poor mental well-being in specific age and occupation groups.
J Occup Health
December 2024
National Center for Geriatrics and Welfare Research, National Health Research Institutes, 35 Keyan Rd., Zhunan, Miaoli County, Taiwan.
Objectives: Innovative technology at work can lead to stress and has been linked with adverse work and health consequences. This study aims to examine the association of techno-insecurity and techno-strain with mental well-being in different age and occupational groups.
Methods: We utilized a nationally representative survey of the working population and restricted our analyses to 2,814 employees who reported being engaged with new technology.
Impact of individual differences in cognitive reserve, stress, and busyness on episodic memory: an fMRI analysis of the Alabama Brain Study On Risk for Dementia.
Cogn Affect Behav Neurosci
December 2024
Department of Psychology, Binghamton University, Binghamton, NY, USA.
Cognitive reserve (CR) and busyness can boost memory, whereas stress can impair memory. Nevertheless, extant research has not yet examined busyness in conjunction with CR and stress, nor whether CR or stress moderate the relationship between busyness and episodic memory. Middle-aged and older adult participants (N = 71; ages 50-74; 31% African-American) answered lifestyle questionnaires and completed a visual paired-associate memory fMRI task.
View Article and Find Full Text PDFFirst Molecular Characterization of Small Ruminant Lentiviruses in Hungarian Goat Population.
Pathogens
October 2024
Division of Veterinary Epidemiology and Economics, Institute of Veterinary Medicine, Warsaw University of Life Sciences-SGGW, Nowoursynowska 159c, 02-776 Warsaw, Poland.
Article Synopsis
- In 2023, a study assessed the genotypes of small ruminant lentiviruses (SRLV) in Hungarian goats, taking blood samples from 135 seropositive adults from 10 herds.
- The researchers used a two-stage nested real-time PCR to identify SRLV DNA, revealing that six herds had genotype A or B, while four herds had mixed infections.
- Findings indicated that 81.5% of goats tested positive for SRLV, with specific subtypes identified as A1/A18, A2, and B1, marking the first identification of both SRLV genotypes in Hungarian goats.
Comparative analysis of the influence of BpfA and BpfG on biofilm development and current density in Shewanella oneidensis under oxic, fumarate- and anode-respiring conditions.
Sci Rep
October 2024
Institute of Technical Microbiology, University of Technology Hamburg, 21073, Hamburg, Germany.
Biofilm formation by Shewanella oneidensis has been extensively studied under oxic conditions; however, relatively little is known about biofilm formation under anoxic conditions and how biofilm architecture and composition can positively influence current generation in bioelectrochemical systems. In this study, we utilized a recently developed microfluidic biofilm analysis setup with automated 3D imaging to investigate the effects of extracellular electron acceptors and synthetic modifications to the extracellular polymeric matrix on biofilm formation. Our results with the wild type strain demonstrate robust biofilm formation even under anoxic conditions when fumarate is used as the electron acceptor.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!