A bacterial strain, designated KBP-31, was isolated from a water sample taken from the Banping Lake Wetland Park in Taiwan and characterized using a polyphasic taxonomic approach. Cells of strain KBP-31 were Gram-stain-negative, strictly aerobic, motile, light-yellow rods. Growth occurred at 10-37 °C (optimum 25 °C), at pH 6-8 (optimum pH 6) and with 0-1 % NaCl (w/v, optimum 0 %). Phylogenetic analyses based on 16S rRNA gene sequences showed that strain KBP-31 belonged to the genus and was most closely related to ATCC 51718 with a sequence similarity of 98.2 %. Strain KBP-31 contained summed feature 3 (comprising Cω7 and/or Cω6) and C as the predominant fatty acids. The major hydroxyl fatty acid was C 3-OH. The polar lipid profile consisted of phosphatidylethanolamine, phosphatidylglycerol, diphosphatidylglycerol, an uncharacterized aminophospholipid and two uncharacterized phospholipids. The DNA G+C content of the genomic DNA was 67.9 mol%. The DNA-DNA relatedness of strain KBP-31 with respect to recognized species of the genus was less than 70 %. On the basis of the phylogenetic inference and phenotypic data, strain KBP-31 should be classified as a novel species, for which the name sp. nov. is proposed. The type strain is KBP-31 ( = BCRC 80524 = KCTC 32238).
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http://dx.doi.org/10.1099/ijsem.0.000832 | DOI Listing |
Microb Genom
January 2025
Leibniz Institute DSMZ - German Collection of Microorganisms and Cell Cultures, Microbial Genome Research, Braunschweig, Germany.
Genomic data on from the African continent are currently lacking, resulting in the region being under-represented in global analyses of infection (CDI) epidemiology. For the first time in Nigeria, we utilized whole-genome sequencing and phylogenetic tools to compare isolates from diarrhoeic human patients (=142), livestock (=38), poultry manure (=5) and dogs (=9) in the same geographic area (Makurdi, north-central Nigeria) and relate them to the global population. In addition, selected isolates were tested for antimicrobial susceptibility (=33) and characterized by PCR ribotyping (=53).
View Article and Find Full Text PDFAdv Biotechnol (Singap)
September 2024
College of Agronomy, Hunan Agricultural University, Changsha, 410128, China.
The use of nitrogen-fixing bacteria in agriculture is increasingly recognized as a sustainable method to boost crop yields, reduce chemical fertilizer use, and improve soil health. However, the microbial mechanisms by which inoculation with nitrogen-fixing bacteria enhance rice production remain unclear. In this study, rice seedlings were inoculated with the nitrogen-fixing bacterium R3 (Herbaspirillum) at the rhizosphere during the seedling stage in a pot experiment using paddy soil.
View Article and Find Full Text PDFAdv Biotechnol (Singap)
October 2023
Institute of Medical Plant Physiology and Ecology, School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, 510006, China.
Optimizing central carbon metabolism (CCM) represents an attractive and challenging strategy to improve the biosynthesis of valuable chemicals due to the complex regulation of the CCM in yeast. In this study, we triggered the similar Warburg effect of cancer cells in yeast strains by introducing the human hypoxia-inducible factor-1 (HIF-1) complex, which regulated the expression of numerous enzymes involved in CCM and redirected the metabolic flux from glycolysis to tricarboxylic acid cycle. This redirection promoted the production of squalene to a 2.
View Article and Find Full Text PDFInfection
January 2025
Department of Thoracic Surgery, Saarland University, 66421, Homburg/Saar, Germany.
Background: Lung transplantation is the ultimate treatment option for patients with advanced cystic fibrosis. Chronic colonization of these recipients with multidrug-resistant (MDR) pathogens may constitute a risk factor for an adverse outcome. We sought to analyze whether colonization with MDR pathogens, as outlined in the German classification of multiresistant Gram-negative bacteria (MRGN), was associated with the success of lung transplantation.
View Article and Find Full Text PDFAdv Biotechnol (Singap)
January 2024
Center for Excellence in Molecular Cell Science, Shanghai Institute of Biochemistry and Cell Biology, Chinese Academy of Sciences, 320 Yueyang Road, Shanghai, 200030, China.
SARS-CoV-2 (Severe acute respiratory syndrome coronavirus 2) Variants of Concern (VOCs), such as the Omicron sub-variants, present significant challenges in pandemic control due to their capacity to escape antibodies and breach vaccine protections. Discovering antibodies that can tolerate mutations in VOCs and understanding their underlying mechanisms is crucial for developing therapeutics for COVID-19 patients, particularly those for whom other therapies may be unsuitable. Here, we report the neutralization of the Omicron variant by FD20, a broadly active human monoclonal antibody.
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