RRC ID 53098
Author Suradkar A, Villanueva C, Gaysina LA, Casamatta DA, Saraf A, Dighe G, Mergu R, Singh P.
Title Nostoc thermotolerans sp. nov., a soil-dwelling species of Nostoc (Cyanobacteria).
Journal Int J Syst Evol Microbiol
Abstract A filamentous, soil-dwelling cyanobacterial strain (9C-PST) was isolated from Mandsaur, Madhya Pradesh, India, and is described as a new species of the genus Nostoc. Extensive morphological and molecular characterization along with a thorough assessment of ecology was performed. The style of filament orientation, type and nature of the sheath (e.g. distribution and visibility across the trichome), and vegetative and heterocyte cell dimensions and shape were assessed for over one year using both the laboratory grown culture and the naturally occurring samples. Sequencing of the 16S rRNA gene showed 94 % similarity with Nostocpiscinale CENA21 while analyses of the secondary structures of the 16S-23S ITS region showed unique folding patterns that differentiated this strain from other species of Nostoc. The level of rbcl and rpoC1 gene sequence similarity was 91 and 94 % to Nostocsp. PCC 7524 and Nostocpiscinale CENA21, respectively, while the nifD gene sequence similarity was found to be 99 % with Nostocpiscinale CENA21. The phenotypic, ecological, genetic and phylogenetic observations indicate that the strain 9C-PST represents a novel species of the genus Nostoc with the name proposed being Nostoc thermotolerans sp. nov. according to the International Code of Nomenclature for Algae, Fungi, and Plants.
Volume 67(5)
Pages 1296-1305
Published 2017-5-1
DOI 10.1099/ijsem.0.001800
PMID 28109209
MeSH Bacterial Typing Techniques Base Composition DNA, Bacterial / genetics Genes, Bacterial India Nostoc / classification* Nostoc / genetics Nostoc / isolation & purification Phylogeny* RNA, Ribosomal, 16S / genetics Sequence Analysis, DNA Soil Microbiology*
IF 2.415
Times Cited 14
Resource
Algae NIES-40 NIES-50 NIES-21 NIES-3756