Degradation of 3-chlorobenzoate in soil by pseudomonads carrying biodegradative plasmids.

Autor: Pertsova RN, Kunc F, Golovleva LA
Jazyk: angličtina
Zdroj: Folia microbiologica [Folia Microbiol (Praha)] 1984; Vol. 29 (3), pp. 242-7.
DOI: 10.1007/BF02877315
Abstrakt: Degradation of continuously added 3-chlorobenzoate (3-CB) was studied in samples of chernozem soil. Soil columns were inoculated with Pseudomonas putida growing on 3-CB and carrying the biodegradation plasmid and with Pseudomonas aeruginosa incapable of growth on 3-CB and carrying the inserted biodegradation plasmid pBS 2 determining ortho-cleavage of the aromatic ring. While the 3-CB degradation was observed in both inoculated variants, the native microflora of the soil under study was incapable to degrade 3-CB. Among pseudomonads isolated from inoculated soil at different stages of cultivation and growth on 3-CB, some had the taxonomic features of P. putida as well as those differing in 1-5 characteristics. The study of the activities of the enzymes cleaving the aromatic ring revealed the presence of pyrocatechol 1,2-dioxygenase in the isolated strains only, as estimated by means of benzoate and 3-CB as substrates.
Databáze: MEDLINE