2.1 Collection and preparation of sample
Phormidium ambiguum Gomont
was collected from the Edakkad beach, Kannur Dist, Kerala, (GPS
coordinates 11°49’09.9”N 75°25’02.9”E) from a depth of 0.5 to 1 m. The
washed cyanobacterial biomass was grinded to fine paste, dried under
vacuum and stored at -20 ºC.