Taxonomical Characterization of Fischerella sp. FS18 collected from paddy-fields of Golestan Province (Iran)

In a multidisciplinary way, taxonomical characterization of the cyanobacterium Fischerella ambigua (Nägeli) Gomont, collected from paddy-fields of North of Iran have been investigated. Beside morphologies, ecophysiological studies including survivsl, growth and pigment composition at different condition of salinity, temperature and light intensity, and molecular investigations including 16S rRNA gene sequences of the cyanobacterium have been considered. The results indicate the drastic underestimation of the physiological and phylogenetic diversity of these cyanobacteria by the current morphology-based classification and the clear need for new taxa.