Morphological and molecular characterization of cyanobacterial isolates from the mouth of the Amazon River

• DOI: 10.11646/phytotaxa.387.4.1
• Publication Date: 2019-01-10T23:05:57Z
• Authors: ELANE D. CUNHA DE...; ALAN C. DA CUNHA; NATALINA B. DA SILVA; RAQUEL CASTELO-BR...; JOÃO MORAIS; MARIA PAULA C. SC...; SILVIA M. M. FAUS...; VITOR RAMOS; VITOR VASCONCELOS
• Keywords: Phylogenetic diversity; Cyanotoxin

The Amazon region contains a great diversity of species, and the River basin accounts for almost 20% all freshwater in world. Despite favorable environmental conditions this region, little is known about cyanobacterial waterbody, especially at mouth river. In paper, we used polyphasic approach to identify 14 strains isolated on inlet site from drinking water supply located close river mouth. were characterized based morphology, behavior culture, 16S rRNA gene sequencing, phylogenetic analysis potential toxin production. belong seven different genera, namely, Alkalinema, Cephalothrix, Limnothrix, Leptolyngbya, Phormidium, Pseudanabaena an unidentified Nostocales taxa that may represent new genus. Strikingly, there no nor detection clusters associated with cyanotoxin However, placements Amazonian Limnothrix provide insight into taxonomy these reinforcing need taxonomic revision.