Phylogenetic and clonality analysis of Bacillus pumilus isolates uncovered a highly heterogeneous population of different closely related species and clones

• Tipo: Artigo em Revista Científica Internacional
• Data: 2014

Autores

Branquinho, R (Autor) Outra; Meirinhos Soares, L (Autor) Outra; Carrico, JA (Autor) Outra; Pintado, M (Autor) Outra; Luisa Peixe (Autor) FFUP

Revista

Título: FEMS Microbiology Ecology

Vol. 90

Páginas: 689-698

ISSN: 0168-6496

Editora: Oxford University Press

Indexação

ISI Web of Knowledge - 8 Citações

Scopus - 18 Citações

Outras Informações

ID Authenticus: P-00A-0PX

DOI: 10.1111/1574-6941.12426

Abstract (EN): Bacillus pumilus is a Gram-positive bacterium with a wide range of attributed applications, namely as a plant growth promoting rhizobacteria (PGPR), animal, and human probiotic. However, a rare putative role in human diseases has been reported, namely in food poisoning or as anthrax-like cutaneous infectious agent. This species is difficult to distinguish from its closely related species on the basis of phenotypic or biochemical characteristics and 16S rRNA gene sequences. In this study, the phylogenetic analysis of gyrB and rpoB gene sequences of a collection of isolates previously identified as B. pumilus, assigned most of them (93%, 38 of 41 isolates) to B. safensis or to the new recently described B. invictae. Moreover, we extended the previously reported recognized habitats of these species and unveiled a human health or biotechnological relevance (e.g. as implicated in food poisoning or PGPR) for them. Additionally, we demonstrated that both B. safensis and B. invictae species encompass a clonally diverse population, which can justify their great adaptation ability to different niches, with evidence of clonal-host specificity.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 10