Abstract:
:Two red-pigmented isolates, designated RQ-33(T) and TU-13, were recovered from hot spring runoffs on the Island of São Miguel in the Azores, Portugal. These organisms have an optimum growth temperature of approximately 45 °C and an optimum pH for growth between 7.5 and 8.5. Based on 16S rRNA gene sequence analysis, the novel isolates were most closely related to the type strain of Cecembia lonarensis at 96.4 % pairwise similarity. Cells of the two isolates were non-motile, rod-shaped, Gram-stain-negative, strictly aerobic, and oxidase- and catalase-positive. The major fatty acids were iso-C15 : 0 and C15 : 0, phosphatidylethanolamine was the major polar lipid, and menaquinone 7 was the major respiratory quinone. Based on phylogenetic analyses, and physiological and biochemical characteristics, these isolates from the Azores represent a novel species of the genus Cecembia for which the name Cecembia calidifontis is proposed with strain RQ-33(T) ( = DSM 21411(T) = LMG 24596(T)) as the type strain. The description of the genus Cecembia is also emended.
journal_name
Int J Syst Evol Microbiolauthors
Albuquerque L,Tiago I,Nobre MF,Veríssimo A,da Costa MSdoi
10.1099/ijs.0.044537-0subject
Has Abstractpub_date
2013-04-01 00:00:00pages
1431-1436issue
Pt 4eissn
1466-5026issn
1466-5034journal_volume
63pub_type
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