Isolation of a hydroxyproline-secreting pigment-deficient mutant ofNostoc sp. by metronidazole selection

Kumar, H. D. ; Tripathi, A. K. (1985) Isolation of a hydroxyproline-secreting pigment-deficient mutant ofNostoc sp. by metronidazole selection MIRCEN Journal of Applied Microbiology and Biotechnology, 1 (3). pp. 269-275. ISSN 0265-0762

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Official URL: http://doi.org/10.1007/BF01742321

Related URL: http://dx.doi.org/10.1007/BF01742321

Abstract

A pigment-deficient mutant ofNostoc sp. was induced by N-methyl-N′-nitro-N-nitrosoguanidine and selected in a medium containing metronidazole. It formed chains of heterocysts, grew more slowly than the control, and excreted hydroxyproline into the medium, imparting a pinkish-brown colour to the cultures

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