The role of mineral phosphorus compounds in naphthalene biodegradation by Pseudomonas putida
| Autor: | L. P. Ryazanova, I. F. Puntus, T. V. Funtikova, Anton Zvonarev, T. V. Kulakovskaya |
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| Rok vydání: | 2015 |
| Předmět: |
Regulation of gene expression
Naphthalene dioxygenase biology Phosphorus chemistry.chemical_element Biodegradation biology.organism_classification Phosphate Applied Microbiology and Biotechnology Biochemistry Naphthalene metabolism Pseudomonas putida chemistry.chemical_compound chemistry Naphthalene |
| Zdroj: | Applied Biochemistry and Microbiology. 51:202-208 |
| ISSN: | 1608-3024 0003-6838 |
| Popis: | The effect of phosphate concentration in the culture medium on the growth and naphthalene degradation by Pseudomonas putida BS 3701 was studied. The limiting concentration of phosphate was 0.4 mM and 0.1 mM under cultivation in media with naphthalene and glucose, respectively. The phosphate deficiency correlated with a decrease in the activities of naphthalene dioxygenase and salicylate hydroxylase and with salicylate accumulation in the culture medium. We suggest that this fact indicates the impaired regulation of gene expression of “upper” and “lower” pathways of naphthalene oxidation. Under naphthalene degradation, the cells accumulated three times more inorganic polyphosphates as compared with the consumption of glucose. The involvement of polyphosphates in the regulation of naphthalene metabolism has been considered. |
| Databáze: | OpenAIRE |
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