Anagnostidis, K. & Komarek, J. 1990: Modern approaches to the classification of cyanobacteria.Stigonematales. -Arch. hydrobiol. 14: 224-286.
Andersen, R. A. 2005: Algal culturing techniques. -Elsevier Academic press. 578 pp.
Desikachary, T. V. 1959: Cyanophyta. Indian council of agricultural research, monographs on Algae. -New Delhi, India. 686 pp.
Gugger, M. F. & Hoffmann, L. 2004: Polyphly of true branching cyanobacteria (Stigonematales). -Int. J. Syst. Evol. Micr. 54: 349-357.
Jensen, A. 1978: Chlorophylls and carotenoides in Handbook of Phycological Methods, Physiological and Biochemical Methods. eds. Hellebust, J. A. & Craigie, J. S. -Cambridge University Press.
John, D. M., Whitton, B. W. & Brook, A. J. 2002: The Freshwater Algal Flora of the British Isles. -Cambridge University Press.
Perona, E., Abol, M., Bonilla, I., & Mateol, P. 2003: Cyanobacterial diversity in Spanish River determined by means of isolation cultures. Morphological variability of isolates in relation to natural population. -Algological Studies 109, Cyanobacterial research 4: 475-486.
Poza-Carrion, C., Fernandez-Valiente, E., Pinas, F. & Leganes, F. 2001: Acclimation of photosynthetic pigments and photosynthesis of the cyanobacterium Nostoc sp. Strain UAM 206 to combined fluctuations of irradiance, pH, and inorganic carbon availability. -J. Plant Physiol. 158: 1455-1461.
Prescott, G. W. 1962: Algae of the western great lake area. -W.M.C. Brown Company Pub.
Ramzannejad-Ghadi, R. 2008: Epipelic algae of Miankaleh International wet land (North of Iran). 1st National congress on fishery resources of Caspian Sea, 18-19 Nov. Gorgan University of Agricultural Sciences and Natural Resources.
Sepehri, S. & Nejad- Satari, T. 2003: Studies on blue-green algae (Cyanophyta) with emphasis on Stigonemataceae family from paddy-fields around Gorgan. -Dissertation of Master degree. Azad University, Tehran, Iran.
Shokravi, Sh., Soltani, N. & Baftechi, L. 2007: Cyanobacteriology. -Islamic Azad Univ. Publication.
Shokravi, Sh., Tabatabaei, M., Ghasemi, Y., Baftechi, L. & Soltani, N. 2003: The effects of light intensities and duration on antibacterial production abilities, morphological variations and ammonium liberations of Fischerella sp. collected from Paddy-fields of Iran. -Proceeding of the 11th International symposium on phototrophic prokaryotes, Tokyo, Japan.
Shokravi, S., Soltani, N. & Baftechi, L. 2002: Cyanobacteria as biofertilizer in paddy fields.- National Research Council of Islamic Republic of Iran, Grant no. NRCI 489-66.
Siahbalaei, R., Afsharzadeh, S., & Shokravi, Sh. 2008: Three new records of Oscillatorian cyanophyta for the paddy fields algal flora of Iran. -Journal on Plant Researches 1 (9): 1-5.
Siahbalaei, R., Afsharzadeh, S., Shokravi, Sh. & Nekoei, Sh. 2010: Some new records of Oscillatorian cyanophyta from paddy-fields of Golestan province. -Iran. J. Bot. 16 (2): 314-319.
Soltani, N., Khavari-Nejad, R. A, Tabatabaei Yazdi, M. & Shokravi, Sh. 2007: Growth and some metabolic features of cyanobacterium Fischerella sp. FS18 in different combined nitrogen sources. -J. Science, Islamic Republic of Iran, 18 (2): 123-128.
Soltani, N., Khavari-Nejad, R., Tabatabaei, M., Shokravi, Sh. & Fernandez-Valiente, E. 2006 :Variation of nitrogenase activity, photosynthesis and pigmentation of cyanobacterium Fischerella ambigua strain FS18 under different irradiance and pH. -World J. Microb. Biot. 22 (6): 571-576.
Soltani, N., Siahbalaei, R. & Shokravi, Sh. 2010 :A new description of Fischerella ambigua (Nag.) Gom. A multidisciplinary approach. -Int. J. Algae. 12 (1): 19-36.
Stal, J. S. 1995: Physiological ecology of cyanobacteria in microbial mats and other communities. -New Phytol. 131: 1-32.
Tiffany, L. H. 1958: Algae. The Grass of Many Waters. -Charles C. Thomas Publisher, Springfield, 199 pp.
Tiffany L. H., Britton M. E., 1971: The Algae of Illinois. -Hafner Publishing Company, New York. 407 pp.
Valiente, E. F., Leganes, L. 1989: Regulatory effect of pH and Incident Irradiance on the levels of Nitrogenase activity in the cyanobacterium UAM205. -J. Plant Physiol. 135: 623- 627.
Zarei-Darki, B. 2009: Algal flora of rivers in Iran. -Int. J. Algae. 11 (3): 310-320.
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