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Article

Morphological differentiation and nitrogen fixation in transposon generated mutants of Anabaena 7120.

Cytobios - 1 Jan 1997

Singh A P, Tiwari D N

Abstract excerpt

Mutants having partially repressed glutamine sythetase (transferase) activity and high nitrogenase activity were isolated following transposon mutagenesis. Two of these mutants M11 and M73 showed a decrease in heterocyst frequency compared with the wild type strain. The level of the enzyme nitrogenase was much higher in all the mutant strains. Nitrate and ammonia completely suppressed heterocyst differentiation...

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PMID: 9693878

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PubMed metadata and Literature Corpus relationships. Corpus snapshot updated 7 Sept 2026. Manifest publication-graph-cohort-2026-09-08.1.

Source receipt: pubmed, retrieved 7 Sept 2026.

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Morphological differentiation and nitrogen fixation in transposon generated mutants of Anabaena 7120.PMID 9693878Read ↗

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