Mutation from molybdenum-dependent growth to tungsten-dependent growth and further evidence for a genetic determinant common to nitrogenase and nitrate reductase in the blue-green alga nostoc muscorum
Toxic and mutagenic action of the herbicide alachlor (lasso) on various strains of the nitrogen-fixing blue-green alga Nostoc muscorum and characterization of the herbicide-induced mutants resistant to methylamine and l-methionine-dl-sulfoximine
Evidence for the involvement of a genetic determinant controlling functional specificity of group VI B elements in the metabolism of N2 and NO3- in the blue-green alga Nostoc muscorum