Abstract:
:A Gram-stain-negative, rod-shaped bacterium, forming yellow colonies and designated CDR SL 15T, was isolated from the surface of Padina sp., a brown macroalga, which grows in the Western coastal regions of the state of Goa, India. The 16S rRNA gene sequence phylogeny placed the strain in the genus Luteimonas and it showed closest sequence similarity to Luteimonas terricola BZ92rT (97.6 %) and <97.0 % to other species of the genus Luteimonas. Chemotaxonomic features, such as having iso-C15 : 0 and summed feature 9 (C16 : 0 10-methyl/iso-C17 : 1ω9c) as the major fatty acids and Q-8 as the only ubiquinone further supported its placement within this genus. There were some critical differences in phenotypic properties between Luteimonas padinae sp. nov. CDR SL 15T and L. terricola DSM 22344T i.e. temperature range for growth and salinity range and optimum for growth (L. terricola is a psychrotolerant bacterium with a lower optimum temperature for growth), acid production and assimilation of substrates, enzyme activities and resistance to certain antibiotics. The DNA-DNA relatedness value of the novel strain with its closest phylogenetic relative was only 40 %, below the 70 % threshold value recommended for species delineation. All these characteristics are consistent with strain CDR SL 15T representing a novel species of the genus Luteimonas, for which the name Luteimonas padinae sp. nov. is proposed. The type strain is CDR SL 15T (=DSM 101536T=KCTC 52403T).
journal_name
Int J Syst Evol Microbiolauthors
Verma A,Ojha AK,Kumari P,Sundharam SS,Mayilraj S,Krishnamurthi Sdoi
10.1099/ijsem.0.001539subject
Has Abstractpub_date
2016-12-01 00:00:00pages
5444-5451issue
12eissn
1466-5026issn
1466-5034journal_volume
66pub_type
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