Morphological and genetic characterization of marine filamentous cyanobacterium Geitlerinema isolated from Thailand

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dc.contributor.authorTinpranee, Nichanan
dc.contributor.authorWorananthakij, Worakrit
dc.contributor.authorIncharoensakdi, Aran
dc.contributor.authorPhunpruch, Saranya
dc.date.accessioned2026-08-06T10:19:38Z
dc.date.available2026-08-06T10:19:38Z
dc.date.issued2018-04-01
dc.description.abstractGeitlerinema is a dominant benthic filamentous cyanobacterium found in the Gulf of Thailand and the Andaman Sea. We investigate the diversity of Geitlerinema strains isolated from Thailand using morphological and molecular characterization. No morphological differences were observed in the Geitlerinema isolates. Nucleotide sequencing and phylogenetic analyses of the 16S rDNA, the 16S–23S rRNA internal transcribed spacer (16S–23S ITS) and the cpcB-cpcA intergenic spacer (cpcB-cpcA IGS) showed that the marine Geitlerinema isolates belong to a single cluster that includes marine Geitlerinema sp. Flo1 and Geitlerinema sp. PCC7105 but is distinct from a type species, Geitlerinema splendidum and Geitlerinema strains which were recently transferred to the genus Anagnostidinema. From our results, it is confirmed that marine Geitlerinema differs from true freshwater Geitlerinema and is proposed to be a new genus in Oscillatoriales. In addition, using random amplification of polymorphic DNA (RAPD), the marine Geitlerinema isolates in this study could be classified into eight clades; however, this classification revealed no correlation with the geographic locations.
dc.identifier.citationScienceasia, 44(2), 74-86, 2018
dc.identifier.doi10.2306/scienceasia1513-1874.2018.44.074
dc.identifier.issn15131874
dc.identifier.other2-s2.0-85082371233
dc.identifier.urihttps://dspace.kmitl.ac.th/handle/123456789/8493
dc.sourceScienceasia
dc.subject16S rDNA
dc.subject16S–23S ITS
dc.subjectCpcB-cpcA IGS
dc.subjectGenetic diversity
dc.subjectMarine Geitlerinema
dc.subjectMorphology
dc.subjectRAPD
dc.titleMorphological and genetic characterization of marine filamentous cyanobacterium Geitlerinema isolated from Thailand
dc.typeArticle

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