1887

INTERNATIONAL JOURNAL OF SYSTEMATIC AND EVOLUTIONARY MICROBIOLOGY logo

Volume 67, Issue 5

sp. nov., sp. nov., sp. nov. and sp. nov., isolated from the Antarctic environment Free

Abstract

A taxonomic study performed on 17 Gram-stain-negative rod-shaped bacterial strains originating from the Antarctic environment is described. Initial phylogenetic analysis using 16S rRNA gene sequencing differentiated the strains into four groups belonging to the genus but they were separated from all hitherto described species. Group I (=8) was closest to (97.8 % 16S rRNA gene sequence similarity). Group II (=2) and group III (=4) were closely related (98.8 % 16S rRNA gene sequence similarity) and had as their common nearest neighbour. Group IV (=3) was distantly delineated from the remaining species. Differentiation of the analysed strains into four clusters was further confirmed by repetitive sequence-based PCR fingerprinting, ribotyping, DNA–DNA hybridization and phenotypic traits. Common to representative strains for the four groups were the presence of major menaquinone MK-7, -homospermidine as the major polyamine, phosphatidylethanolamine, two unidentified lipids (L2, L5) and an unidentified aminolipid (AL2) as the major polar lipids, presence of an alkali-stable lipid, and Cω7c/Cω6 (summed feature 3), iso-C and iso-C 3-OH as the major fatty acids, which corresponded to characteristics of the genus . The obtained results showed that the strains analysed represent four novel species of the genus , for which the names sp. nov. (type strain CCM 8689=LMG 29684), sp. nov. (CCM 8691=LMG 29685), sp. nov. (CCM 8685=LMG 29688) and sp. nov. (CCM 8687=LMG 29686) are proposed.

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Keyword(s): Antarctica , James Ross Island , Pedobacter jamesrossensis sp. nov. , Pedobacter lithocola sp. nov. , Pedobacter mendelii sp. nov. and Pedobacter petrophilus sp. nov.
© 2017 IUMS
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2017-05-01
2024-04-20
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Pedobacter jamesrossensis sp. nov., Pedobacter lithocola sp. nov., Pedobacter mendelii sp. nov. and Pedobacter petrophilus sp. nov., isolated from the Antarctic environment
Int J Syst Evol Microbiol 67, 1499 (2017); https://doi.org/10.1099/ijsem.0.001749
/content/journal/ijsem/10.1099/ijsem.0.001749
/content/journal/ijsem/10.1099/ijsem.0.001749
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