TY - JOUR N2 - A filamentous benthic cyanobacteria, strain USMAC16, was isolated from the High Arctic Svalbard archipelago, Norway, and a combination of morphological, ultrastructural and molecular characterisation (16S rRNA gene sequence) used to identify to species level. Cell dimensions, thylakoid arrangement and apical cell shape are consistent with the Pseudanabaena genus description. The molecular characterisation of P. catenata gave 100% similarity with Pseudanabaena catenata SAG 1464-1, originally reported from Germany. Strain USMAC16 was cultured under a range of temperature and photoperiod conditions, in solid and liquid media, and harvested at exponential phase to examine its phenotypic plasticity. Under different culture conditions, we observed considerable variations in cell dimensions. The longest cell (5.91±0.13 μm) was observed at 15°C under 12:12 light:dark, and the widest cell (3.24±0.06 μm) at 4°C under 12:12 light: dark in liquid media. The study provides baseline data documenting the morphological variation of P. catenata in response to changing temperature regimes. L1 - http://www.czasopisma.pan.pl/Content/102199/PDF/10183_Volume38_Issue4_02_paper.pdf L2 - http://www.czasopisma.pan.pl/Content/102199 PY - 2017 IS - No 4 EP - 458 DO - 10.1515/popore-2017-0022 KW - 16S rRNA KW - Arctic KW - Cyanobacteria KW - Polyphasic approach KW - Pseudanabaena A1 - Smykla, Jerzy A1 - Zoya Khan A1 - Wan Maznah Wan Omar A1 - Faradina Merican Mohd Sidik Merican A1 - Asmimie Asmawarnie Azizan A1 - Choon Pin Foong A1 - Convey, Peter A1 - Nazalan Najimudin A1 - Siti Aisyah Alias PB - Polish Academy of Sciences PB - Committee on Polar Research VL - vol. 38 DA - 2017.12.15 T1 - Identification and phenotypic plasticity of Pseudanabaena catenata from the Svalbard archipelago SP - 445 UR - http://www.czasopisma.pan.pl/dlibra/publication/edition/102199 T2 - Polish Polar Research ER -