HYDROGEN METABOLISM OF MUTANT FORMS OF ANABAENA-VARIABILIS IN CONTINUOUS CULTURES AND UNDER NUTRITIONAL STRESS

Authors
SVESHNIKOV DA SVESHNIKOVA NV RAO KK HALL DO
Citation
Da. Sveshnikov et al., HYDROGEN METABOLISM OF MUTANT FORMS OF ANABAENA-VARIABILIS IN CONTINUOUS CULTURES AND UNDER NUTRITIONAL STRESS, FEMS microbiology letters, 147(2), 1997, pp. 297-301
Citations number
16
Categorie Soggetti
Microbiology
Journal title
FEMS microbiology letters → ACNP
ISSN journal
03781097
Volume
147
Issue
2
Year of publication
1997
Pages
297 - 301
Database
ISI
SICI code
0378-1097(1997)147:2<297:HMOMFO>2.0.ZU;2-A
Abstract
Nitrogenase activity and H-2 evolution were studied in two mutants of the cyanobacterium Anabaena variabilis ATCC 29413 which are impaired i n molecular H-2-related metabolism. Evidence was obtained that mutants deficient in uptake and reversible hydrogenases were suitable for bio technological research on H-2 production. H-2 production by the mutant PK84 in continuous cultures was 4.3 times higher compared to the wild -type. Enhancement in H-2 evolution by all the cultures under N-2 (1.8 -1.9 times) and CO2 starvation (1.4-1.5 times) was observed.