Studies on the Induction of Reversible Hydrogenase from Cyanobacterium Anabaena variabilis and its Properties Expression of Mouse MT-cDNA in Filamentous Cyanobacterium to Enhance Its Metal- resistance Expression of TNF-α Gene in Anabaena sp. PCC 7120 and Purification of Its Product by Affinity Chromatography Photoregulated or Energy Dependent Process of Hormogonia Differentiation in Nostoc sphaeroides Kützing (Cyanobacterium) Advance in researches on cyanobacterium allelopathic inhibition Molecular Cloning and Construction of agp Gene Deletion-mutant in Cyanobacterium Synechocystis sp. PCC 6803 Regulations of Environmental Factors on Growth and Photosynthesis of Transgenic Anabaena sp. Strain PCC 7120 Harboring hGM-CSF gene Cloning of human granulocyte-macrophage colony stimulating factor (hGM-CSF) gene in Anabaena sp. PCC7120 Isolation of Plasma and Thylakoid Membranes from the Heterocystous Cyanobacterium Anabaena sp. PCC 7120 Effect of Water on Physiological Activity of Nostoc flagelliforme Response and Adaptation of Cyanobacteria to Enhanced UV-B Radiation