Maryam Safaei Katoli - Department of Biology, Science and Research branch, Islamic Azad university, Tehran, Iran
Taher Nejad Sattari - Department of Biology, Science and Research branch, Islamic Azad university, Tehran, Iran
Ahmad Majd - Department of Biology, faculty of scientist, North Tehran branch, Islamic Azad University, Tehran, Iran
Shadman Shokravi - Department of Biology, Gorgan Branch, Islamic Azad University,Gorgan, Iran

A new morphospecies, Anabaena variabilis var. kashinesis (Bharadwaja) Fritsch (Nostocaaceae, Cyanophyta) is reported for algal flora of Iran. The specimens were collected at ۲۰۱۳ from paddy fields of Golestan province. After isolation and uniculture in both liquid and solid media the variety was identified using optical, fluorescence and scanning electron microscope (SEM) techniques based on Morphological characteristics and behavioral analysis under different temperature and carbon dioxide concentration at limited irradiance (۲μE m-۲ s-۱) which is the first combined method of phytoplankton studies in Iran. Regarding biological versatility of cyanophyta, the study emphasized on most morphological characteristics of the variety and a new description of Anabaena variabilis var. kashinesis (Bharadwaja) Fritsch has been presented in this paper.

Anabaena, CYANOPHYTA, morphospecies, Iranian algal flora