Ensifer mexicanus sp. nov. a new species nodulating Acacia angustissima (Mill.) Kuntze in Mexico |
| |
Authors: | Lloret Lourdes Ormeño-Orrillo Ernesto Rincón Reiner Martínez-Romero Julio Rogel-Hernández Marco Antonio Martínez-Romero Esperanza |
| |
Affiliation: | Centro de Ciencias Genómicas, UNAM, Apdo. Postal 565-A, CP 62251, Cuernavaca, Morelos, Mexico. |
| |
Abstract: | A new lineage of Ensifer nodulating the American legume Acacia angustissima in the tropical forest of Chiapas and Morelos, Mexico is described. Bacteria were identified as Ensifer with ssb or nolR specific primers. Phylogenetic analysis with partial sequences of the five chromosomal genes gyrA, nolR, recA, rpoB and rrs revealed that this new lineage is related to African Ensifer terangae. The results of total DNA-DNA hybridization and selected phenotypic tests among the A. angustissima strains and E. terangae indicated that they belong to different species. The phylogeny with the symbiotic nifH gene also separates this group as a different clade but with close affinities to bacteria belonging to the genus Ensifer isolated from American hosts. ITTG R7(T) (=CFN ER1001, HAMBI 2910, CIP 109033, ATCC BAA-1312, DSM18446) is the type strain of a new species for which the name Ensifer mexicanus sp. nov. is proposed. |
| |
Keywords: | Phylogeny Taxonomy Systematics Legume symbiont Nitrogen fixation Acacia angustissima Sinorhizobium Ensifer, sp. nov |
本文献已被 ScienceDirect PubMed 等数据库收录! |
|