| Literature DB >> 21239565 |
Joana Bondoso1,2, Luciana Albuquerque3, M Fernanda Nobre4, Alexandre Lobo-da-Cunha5,1, Milton S da Costa4, Olga Maria Lage1,2.
Abstract
As part of a study of the diversity of planctomycetes, two novel strains, designated OJF2(T) and OJF8, were isolated from the sediments of a freshwater aquarium. The organisms were chemoheterotrophic, spherical and pink-pigmented, had an optimum growth temperature of about 30-35 °C and an optimum pH for growth of around 7.5-8.5. The predominant fatty acids were C(18:1)ω9c and C(16:0). The two strains were able to assimilate several sugars and organic acids. 16S rRNA gene sequence analysis confirmed the affiliation of these organisms to the phylum 'Planctomycetes'; they showed highest similarity to the type strains of Singulisphaera acidiphila (92.4%) and Isosphaera pallida (91.9%). On the basis of physiological, biochemical and chemotaxonomic characteristics, strains OJF2(T) and OJF8 are considered to represent a novel species of a new genus of the order Planctomycetales, for which the name Aquisphaera giovannonii gen. nov., sp. nov. is proposed. The type strain of Aquisphaera giovannonii is OJF2(T) (=CECT 7510(T) =DSM 22561(T)).Entities:
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Year: 2011 PMID： 21239565 DOI： 10.1099/ijs.0.027474-0
Source DB: PubMed Journal: Int J Syst Evol Microbiol ISSN： 1466-5026 Impact factor: 2.747