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Вид документа : Статья из журнала
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Автор(ы) : Boyandin A. N., Prudnikova S. V., Filipenko M. L., Khrapov E. A., Vasil'ev A. D., Volova T. G.
Заглавие : Biodegradation of polyhydroxyalkanoates by soil microbial communities of different structures and detection of PHA degrading microorganisms
Место публикации : Appl. Biochem. Microbiol.: MAIK Nauka-Interperiodica / Springer, 2012. - Vol. 48, Is. 1. - P.28-36. - ISSN 0003-6838, DOI 10.1134/S0003683812010024
Примечания : Cited References: 39. - The work was supported by the project initiated by the Government of the Russian Federation for governmental support of scientific research conducted under the guidance of leading scientists at Russian institutions of higher learning (Agreement No. 11.G34.31.0013) and the Program of Integrated Research of the Presidium of the Siberian Branch of Russian Academy of Sciences (project no. 96).
Предметные рубрики: POLY-BETA-HYDROXYBUTYRATE
CHAIN-LENGTH POLYHYDROXYALKANOATES
DEGRADATION
FILMS
POLY(3-HYDROXYBUTYRATE-CO-3-HYDROXYVALERATE)
BACTERIA
ACID
Аннотация: Biodegradation of microbial linear polymers of hydroxyalkanoic acids (polyhydroxyalkanoates, PHAs) by soil microbial communities of different structures has been studied during two field seasons in different weather conditions. This process was shown to be influenced by the polymer chemical composition, temperature, humidity, and the microbial soil component. The PHA degradation was accompanied by a decrease in the polymer molecular weight and an increase in the degree of crystallinity, indicating the preferential destruction of the amorphous phase compared to the crystalline one. The quantity of the true PHA destructors developing at the surface of the polymer samples was lower than the quantity of accompanying bacteria. The dominant PHA degrading microorganisms under the test conditions were identified as bacteria of the genera Variovorax, Stenotrophomonas, Acinetobacter, Pseudomonas, Bacillus, and Xanthomonas and as micromycetes from Penicillium, Paecilomyces, Acremonium, Verticillium, and Zygosporium.
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