This paper provides descriptions of four new species of the genus Semia Matsumura, 1917 from Vietnam: Semia magna sp. nov., Semia spiritus sp. nov., Semia pallida sp. nov., and Semia albusequi sp. nov. A key to the 13 species of Semia is provided.
Download full-text PDF |
Source |
---|---|
http://dx.doi.org/10.11646/zootaxa.4216.2.2 | DOI Listing |
Curr Microbiol
August 2024
Department of Soil and Environmental Sciences, College of Agriculture and Natural Resources, National Chung Hsing University, 145, XingDa Rd, Taichung, 40227, Taiwan.
A polyphasic taxonomic approach was used to characterize a novel bacterium, designated strain CC-CFT758, isolated from a maize-rice rotation agriculture field in Taiwan. The cells are aerobic, Gram-stain-negative, rod-shaped, positive for catalase and oxidase, and grow at 20-30 °C (optimal 30 ℃), at pH 6.0-8.
View Article and Find Full Text PDFBraz J Microbiol
March 2023
Department of Agricultural Research and Diagnosis - DDPA, Secretary of Agriculture, Livestock, and Rural Development of Rio Grande do Sul - SEAPDR, 570 Gonçalves Dias St, 90130-060, Porto Alegre, Rio Grande do Sul, Brazil.
Black wattle (Acacia mearnsii) is a forest species of significant economic importance in southern Brazil; as a legume, it forms symbiotic associations with rhizobia, fixing atmospheric nitrogen. Nonetheless, little is known about native rhizobia in soils where the species is cultivated. Therefore, this study aimed to evaluate the diversity and symbiotic efficiency of rhizobia nodulating A.
View Article and Find Full Text PDFPhys Rev E
November 2020
Aix-Marseille Université, CNRS, IUSTI, Marseille, France.
In this work we propose to identify the relative role of the inclination of gravitational acceleration and friction on the discharge flow rate of a granular media from a rectangular silo by varying the silo geometry thanks to an inclined bottom which ends up at a lateral outlet. The study is motivated by a nuclear safety problem: a fuel rod (modeled by an elongated silo) accidentally releases fuel fragments (modeled by grains). We performed experiments where we independently measured the mass flow rate and the velocity profiles, together with discrete particle simulations and continuum simulations with a frictional rheology described by a μ(I) constitutive law and taking into account the wall friction.
View Article and Find Full Text PDFInt J Syst Evol Microbiol
February 2020
Department of Botany and Plant Biology, Microbiology Unit, University of Geneva, Sciences III, 30 quai Ernest-Ansermet, CH-1211 Geneva 4, Switzerland.
For many smallholder farmers of Sub-Saharan Africa, pigeonpea () is an important crop to make ends meet. To ascertain the taxonomic status of pigeonpea isolates of Côte d'Ivoire previously identified as bradyrhizobia, a polyphasic approach was applied to strains CI-1B, CI-14A, CI-19D and CI-41S. Phylogeny of 16S ribosomal RNA (rRNA) genes placed these nodule isolates in a separate lineage from current species of the super clade.
View Article and Find Full Text PDFArch Microbiol
July 2020
Setor de Biologia, Microbiologia e Processos Biológicos Do Solo, Departamento de Ciência Do Solo, Universidade Federal de Lavras, Campus UFLA, Lavras, Minas Gerais, 37200-000, Brazil.
This study describes two Bradyrhizobium strains, UFLA03-164 and UFLA03-153, which share more than 99% sequence similarity of the 16S rRNA with the type strains of 15 species in this genus. The concatenation of three housekeeping genes (recA, gyrB, and dnaK) indicated that both strains formed a single clade separate from known Bradyrhizobium species. B.
View Article and Find Full Text PDFEnter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!