Halococcus hamelinensis sp. nov., a novel halophilic archaeon isolated from stromatolites in Shark Bay, AustraliaInternational Journal of Systematic and Evolutionary Microbiology - Tập 56 Số 6 - Trang 1323-1329 - 2006
Falicia Goh, Stefan Leuko, Michelle A. Allen, John P. Bowman, Masahiro Kamekura, Brett A. Neilan, Brendan P. Burns
Several halophilic archaea belonging to the genus Halococcus were isolated from stromatolites from Hamelin Pool, Shark Bay, Western Australia, collected during field trips in 1996 and 2002. This is the first incidence of halophilic archaea being isolated from this environment. Stromatolites are biosedimentary structures that have been formed throughout the earth'...... hiện toàn bộ
Reclassification of Rhizobium tropici type A strains as Rhizobium leucaenae sp. nov.International Journal of Systematic and Evolutionary Microbiology - Tập 62 Số Pt_5 - Trang 1179-1184 - 2012
Renan Augusto Ribeiro, Marco A. Rogel, Aline López-López, Ernesto Ormeño‐Orrillo, Fernando Gomes Barcellos, Julio Martínez, Fabiano L. Thompson, Esperanza Martínez‐Romero, Mariangela Hungría
Rhizobium tropici
is a well-studied legume symbiont characterized by high genetic stability of the symbiotic plasmid and tolerance to tropical environmental stresses such as high temperature and low soil pH. However, high phenetic and genetic variabilities among
R. tropici
strains have been largely reported, with two subgroups, designated type A and B, already defined within the species. A polyphasic study comprising multilocus sequence analysis, phenotypic and genotypic characterizations, including DNA–DNA hybridization, strongly supported the reclassification of
R. tropici
type A strains as a novel species. Type A strains formed a well-differentiated clade that grouped with
R. tropici
,
Rhizobium multihospitium
,
Rhizobium miluonense
,
hiện toàn bộ
Rhizobium acidisoli sp. nov., isolated from root nodules of Phaseolus vulgaris in acid soilsInternational Journal of Systematic and Evolutionary Microbiology - Tập 66 Số 1 - Trang 398-406 - 2016
Brenda Román‐Ponce, Yu Jing Zhang, María Soledad Vásquez-Murrieta, Xin Hua Sui, Wen Feng Chen, Juan Carlos Alberto Padilla, Xian Wu Guo, Jun Gao, Jun Yan, Ge Hong Wei, En Tao Wang
Rhizobium ecuadorense sp. nov., an indigenous N2-fixing symbiont of the Ecuadorian common bean (Phaseolus vulgaris L.) genetic poolInternational Journal of Systematic and Evolutionary Microbiology - Tập 65 Số Pt_9 - Trang 3162-3169 - 2015
Renan Augusto Ribeiro, Talita Busulini Martins, Ernesto Ormeño‐Orrillo, Jakeline Renata Marçon Delamuta, Marco A. Rogel, Esperanza Martínez‐Romero, Mariangela Hungría
There are two major centres of genetic diversification of common bean (Phaseolus vilgaris L.), the Mesoamerican and the Andean, and the legume is capable of establishing nitrogen-fixing symbioses with several rhizobia; Rhizobium etli seems to be the dominant species in both centres. Another genetic pool of common bean, in Peru and Ecuad...... hiện toàn bộ
Rhizobium sophorae sp. nov. and Rhizobium sophoriradicis sp. nov., nitrogen-fixing rhizobial symbionts of the medicinal legume Sophora flavescensInternational Journal of Systematic and Evolutionary Microbiology - Tập 65 Số Pt_2 - Trang 497-503 - 2015
Yin Jiao, Hui Yan, Zhao Ji, Yuan Hui Liu, Xin Hua Sui, En Tao Wang, Bao Lin Guo, Wen Xin Chen, Wen Feng Chen
Five bacterial strains representing 45 isolates originated from root nodules of the medicinal legume Sophora flavescens were defined as two novel groups in the genus
Rhizobium
based on their phylogenetic relationships estimated from 16S rRNA genes and the housekeeping genes recA, glnII and atpD. These groups were distantly related to
Rhizobium leguminosarum
USDA 2370T (95.6 % similarity for group I) and
Rhizobium phaseoli
ATCC 14482T (93.4 % similarity for group II) in multilocus sequence analysis. In DNA–DNA hybridization experiments, the reference strains CCBAU 03386T (group I) and CCBAU 03470T (group II) showed levels of relatedness of 17.9–57.8 and 11.0–42.9 %, respectively, with the type strains of related species. Both strains CCBAU 03386T and CCBAU 03470T contained ubiquinone 10 (Q-10) as the major respiratory quinone and possessed 16 : 0, 18 : 0, 19 : 0 cyclo ω8c, summed feature 8 and summed feature 2 as major fatty acids, but did not contain 20 : 3 ω6,8,12c. Phenotypic features distinguishing both groups from all closely related species of the genus hiện toàn bộ
Rhizobium freirei sp. nov., a symbiont of Phaseolus vulgaris that is very effective at fixing nitrogenInternational Journal of Systematic and Evolutionary Microbiology - Tập 63 Số Pt_11 - Trang 4167-4173 - 2013
Rebeca Fuzinatto Dall’Agnol, Renan Augusto Ribeiro, Ernesto Ormeño‐Orrillo, Marco A. Rogel, Jakeline Renata Marçon Delamuta, Diva Souza Andrade, Esperanza Martínez‐Romero, Mariangela Hungría
Common bean (Phaseolus vulgaris L.) can establish symbiotic associations with several
Rhizobium
species; however, the effectiveness of most strains at fixing nitrogen under field conditions is very low. PRF 81T is a very effective strain, usually referred to as
Rhizobium tropici
and used successfully in thousands of doses of commercial inoculants for the common bean crop in Brazil; it has shown high rates of nitrogen fixation in all areas representative of the crop in the country. Here, we present results that indicate that PRF 81T, although it belongs to the ‘
R. tropici
group’, which includes 10
Rhizobium
species,
R. tropici
,
R. leucaenae
,
R. lusitanum
,
R. multihospitium
,
R. miluonense
,
R. hainanense
,
R. calliandrae
,
R. mayense
,
R. jaguaris
and
R. rhizogenes
, represents a novel species. Several morpho-physiological traits differentiated PRF 81T from related species. Differences were also confirmed in the analysis of rep-PCR (sharing less than 45 % similarity with the other species), MLSA with recA, atpD and rpoB genes, and DNA–DNA hybridization. The novel species, for which we propose the name hiện toàn bộ
Rhizobium grahamii sp. nov., from nodules of Dalea leporina, Leucaena leucocephala and Clitoria ternatea, and Rhizobium mesoamericanum sp. nov., from nodules of Phaseolus vulgaris, siratro, cowpea and Mimosa pudicaInternational Journal of Systematic and Evolutionary Microbiology - Tập 62 Số Pt_9 - Trang 2264-2271 - 2012
Aline López-López, Marco Antonio Rogel-Hernández, Isabelle Barois, Ángel I. Ortiz-Ceballos, Julio Martínez, Ernesto Ormeño‐Orrillo, Esperanza Martínez‐Romero
Two novel related
hiện toàn bộ