Altererythrobacter halimionae sp. nov. and Altererythrobacter endophyticus sp. nov., two endophytes from the salt marsh plant Halimione portulacoides.
Int J Syst Evol Microbiol
; 67(8): 3057-3062, 2017 Aug.
Article
em En
| MEDLINE
| ID: mdl-28853692
ABSTRACT
Two Gram-negative, rod-shaped, motile bacterial strains, named CPA5T and BR75T, were isolated from the halophyte Halimione portulacoides. Both presented optimum growth at 30 °C, pH 7.0-7.5 and 1-2â% NaCl (w/v) for strain CPA5T, and pH 7.5-8.0 and 2â% NaCl (w/v) for strain BR75T. Phylogenetic analyses based on 16S rRNA gene sequences affiliated both strains to the genus Altererythrobacter. CPA5T presented highest 16S rRNA gene sequence similarity with Altererythrobacter aestuarii KYW147T (96.5â%), followed by Altererythrobacter namhicola KYW48T (95.9â%), Novosphingobium indicum H25T (95.6â%) and Altererythrobacter oceanensis Y2T (95.5â%). BR75T displayed highest similarity with Altererythrobacter marensis MSW-14T (96.5â%), followed by Altererythrobacter xinjiangensis S3-63T, Altererythrobacter luteolus SW-109T and Altererythrobacter indicus MSSRF26T (96.1â%). Neither strain contained Bacteriochlorophyll a. The main fatty acids observed for CPA5T were C17ââ1ω6c and summed features 3 (C16ââ1ω7c and/or iso-C15ââ0 2-OH) and 8 (C18ââ1 ω7c and/or C18ââ1ω6c). The latter summed feature was the dominant fatty acid observed for strain BR75T as well. The major polar lipids were phosphatidylethanolamine, unidentified phospholipids and unidentified glycolipids for both strains. The predominant ubiquinone was Q-10 for both strains, and the DNA G+C contents were 63.4 mol% and 58.3 mol% for CPA5T and BR75T, respectively. Based on phenotypic and genotypic results, both strains represent novel species belonging to the genus Altererythrobacter for which the names Altererythrobacter halimionae sp. nov. (type strain CPA5T=CECT 9130T=LMG 29519T) and Altererythrobacter endophyticus sp. nov (type strain BR75T=CECT 9129T=LMG 29518T) are proposed.
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Base de dados:
MEDLINE
Assunto principal:
Filogenia
/
Chenopodiaceae
/
Alphaproteobacteria
/
Áreas Alagadas
País como assunto:
Europa
Idioma:
En
Ano de publicação:
2017
Tipo de documento:
Article