Growth ofRhodococcus opacus on mixtures of monohalogenated benzenes and phenols

Autor:	E. G. Surovtseva, G. M. Zaitsev
Rok vydání:	2000
Předmět:	Chlorophenol Chemistry chemistry.chemical_element Biodegradation Applied Microbiology and Biotechnology Microbiology Diauxic growth Rhodococcus opacus Metabolic pathway chemistry.chemical_compound Iodobenzenes Chlorine Organic chemistry Phenols
Zdroj:	Microbiology. 69:401-405
ISSN:	1608-3237 0026-2617
DOI:	10.1007/bf02756763
Popis:	The growth of Rhodococcus opacus GM-14 on mixtures of 2-chloro- and 2-bromophenol, of 4-chloro, 4-bromo-, and 4-iodophenol, and of chloro-, bromo-, and iodobenzenes was accompanied by consumption of the substrates and excretion of halogen ions to the medium. During the growth on monochlorophenols, the substrates were consumed sequentially in the following order: 4-chloro-, 3-chloro-, and then 2-chlorophenol. Chlorine ions were excreted in a two-phase manner in amounts comprising 79% of the theoretical yield. The diauxic growth of R. opacus GM-14 can be explained by the existence in this bacterium of two modified metabolic pathways for the ortho-cleavage of halogenated pyrocatechols. The first pathway included 4-halogeno- or dihalogenopyrocatechols as intermediates, whereas the second pathway included 3-halogenopyrocatechols.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::f4337b62d5f832ddd30771c0b0d23e92 https://doi.org/10.1007/bf02756763 Zobrazit plný text záznamu Full text from SpringerLink