The taxonomic position of a Gram-positive coccus, designated strain CAU 28T, isolated from activated sludge foam was determined by using a polyphasic approach. Based on its cellular morphology and the results of biochemical tests, strain CAU 28T was identified tentatively as a member of the genus Lactococcus. Comparative 16S rRNA gene sequence analysis showed that levels of similarity between strain CAU 28T and the type strains of recognized Lactococcus species ranged from 90.4 to 97.2 %. DNA-DNA hybridization studies showed that strain CAU 28T displayed less than 26.1 % relatedness to the type strains of recognized Lactococcus species. The rep-PCR fingerprints revealed that strain CAU 28T was well separated from reference Lactococcus species. The combined genotypic and phenotypic data indicate that strain CAU 28T represents a novel species of the genus Lactococcus, for which the name Lactococcus chungangensis sp. nov. is proposed. The type strain is CAU 28T (=KCTC 13185T =CCUG 55099T).
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1099/ijs.0.65527-0 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Demonstration of adapted packed-bed bioreactor for accurate and rapid estimation of biochemical oxygen demand: insights into the influence of microbial community structure and functions.
World J Microbiol Biotechnol
January 2025
Institute of Chemical Technology - Vietnam Academy of Science and Technology, 1A TL29 Street, Thanh Loc Ward, District 12, Ho Chi Minh City, Vietnam.
This study demonstrated a novel approach to accurately estimate 5-day biochemical oxygen demand (BOD) in textile wastewater using a microbial consortium from food processing wastewater fixed on coconut fibers. Although glucose-glutamic acid (GGA) has been widely known as the most preferred substrates for microbial respiration, its calibration surprisingly resulted in an overestimation of BOD in textile wastewater due to its lower utilization rate compared to that of textile wastewater. After being adapted with a new nutrient environment composed of GGA and textile wastewater, the adapted packed-bed bioreactors (PBBRs) was capable of accurate estimation of BOD in textile wastewater using GGA standard solution.
View Article and Find Full Text PDFImpact of storage temperature and ultraviolet irradiation on rotavirus survival on food matrices.
Food Res Int
January 2025
Department of Food and Nutrition, College of Biotechnology and Natural Resources, Chung-Ang University, 4726, Gyeonggi-do 17546, Republic of Korea. Electronic address:
This study investigated the survival of human rotavirus (HRV) on fresh beef, chicken, and lettuce stored at various temperatures, as well as the effect of UV-C exposure on HRV viability on these food surfaces. At 20 °C, the survival rate of three HRV strains (WA, 89-12C2, and DS-1) on beef, chicken, and lettuce decreased within 3 days, with the most significant reduction observed on beef. When stored at 4 °C, a significant reduction in HRV viability was observed by day 7, with the greatest decrease observed on beef, followed by chicken and lettuce.
View Article and Find Full Text PDFA point mutation in the pepper veinal mottle virus 6K1 protein yields a stable attenuated strain for engineering virus resistance in pepper plants.
Plant Dis
January 2025
No. 58, Renmin AvenueHaikou, China, 570228;
A total of 164 viruses have been identified in peppers worldwide. To combat viruses, pathogen-derived resistance (PDR) has been employed by expressing a viral genomic segment or a viral protein in host plants. Unfortunately, peppers are recalcitrant to genetic transformation and regeneration.
View Article and Find Full Text PDFRegional antimicrobial resistance gene flow among the One Health sectors in China.
Microbiome
January 2025
National Key Laboratory of Intelligent Tracking and Forecasting for Infectious Diseases, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, 102206, China.
Background: Antimicrobial resistance poses a significant threat to global health, with its spread intricately linked across human, animal, and environmental sectors. Revealing the antimicrobial resistance gene (ARG) flow among the One Health sectors is essential for better control of antimicrobial resistance.
Results: In this study, we investigated regional ARG transmission among humans, food, and the environment in Dengfeng, Henan Province, China by combining large-scale metagenomic sequencing with culturing of resistant bacterial isolates in 592 samples.
Molecular characteristics and pathogenicity analysis of infectious laryngotracheitis virus isolated in China from 2015 to 2019.
Poult Sci
December 2024
National Key Laboratory of Veterinary Public Health Security, College of Veterinary Medicine, China Agricultural University, Beijing 100193, China; Key Laboratory of Animal Epidemiology of the Ministry of Agriculture, College of Veterinary Medicine, China Agricultural University, Beijing 100193, China. Electronic address:
The aim of this study was to investigate the molecular characteristics and pathogenicity of recently isolated ILTV strains from China, thereby augmenting our understanding of its prevalence. The complete genome sequences of seven ILTV strains obtained from China between 2015 and 2019 were determined by high-throughput sequencing. Phylogenetic analysis showed that six isolates (SD2015, GD2017, SYB2018, HB201812, HB201806, and TJ2019) were classified together with CEO vaccine strains, while only one isolates LN2018 belonged to the wild-type cluster.
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!