Title
Ensifer mexicanus sp. nov. a new species nodulating Acacia angustissima (Mill.) Kuntze in Mexico
Date Issued
15 June 2007
Access level
metadata only access
Resource Type
journal article
Author(s)
Lloret L.
Rincón R.
Martínez-Romero J.
Rogel-Hernández M.A.
Martínez-Romero E.
Universidad Nacional Autónoma de México
Publisher(s)
Elsevier GmbH
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<sup>T</sup> (=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. © 2006 Elsevier GmbH. All rights reserved.
Start page
280
End page
290
Volume
30
Issue
4
Language
English
OCDE Knowledge area
Biología celular, Microbiología
Subjects
Scopus EID
2-s2.0-34248582510
PubMed ID
Source
Systematic and Applied Microbiology
ISSN of the container
07232020
Sponsor(s)
We thank Aryana Chávez for field work at the Sumidero Canyon and Tuxtla Gutiérrez in Chiapas, Edith Ponce and Ivonne Toledo for technical assistance and soil sample collection at the Sierra de Huautla, Morelos. We also thank W.X. Chen, P. de Lajudie, E.T. Wang and K. Lindström for providing bacterial strains, and P. Vinuesa for his advice in the selection of the best evolutionary models for the phylogenetic analyses. We thank Michael Dunn for reading this manuscript. Financial support was from PAPIT-DGAPA Grant IN 201106.
Sources of information:
Directorio de Producción Científica
Scopus