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Preferential oxidative dehalogenation upon conversion of 2-halophenols by Rhodococcus opacus 1G [Text] / V. S. Bondar [et al.] // FEMS Microbiol. Lett. - 1999. - Vol. 181, Is. 1. - P73-82, DOI 10.1111/j.1574-6968.1999.tb08828.x. - Cited References: 30 . - ISSN 0378-1097

РУБ Microbiology
Рубрики:
PHENOL HYDROXYLASE
   POLYCHLORINATED PHENOLS
   MICROBIAL-DEGRADATION
   TRICHOSPORON-CUTANEUM
   METABOLISM
   PURIFICATION
   REGIOSELECTIVITY
   CHLOROAROMATICS
   COMPONENT
   BENZOATE
Кл.слова (ненормированные):
phenol hydroxylase -- oxidative dehalogenation -- 2-halophenol -- F-19 NMR -- Rhodococcus opacus
Аннотация: The regiospecificity of hydroxylation of C2-halogenated phenols by Rhodococcus opacus 1G was investigated. Oxidative defluorination at the C2 position ortho with respect to the hydroxyl moiety was preferred over hydroxylation at the non fluorinated C6 position for all 2-fluorophenol compounds studied. Initial hydroxylation of 2,3,5-trichlorophenol resulted in the exclusive formation of 3,5-dichlorocatechol. These results indicate that, in contrast to all other phenol ortho-hydroxylases studied so far, phenol hydroxylase from R. opacus 1G is capable of catalyzing preferential oxidative defluorination but also oxidative dechlorination. (C) 1999 Federation of European Microbiological Societies. Published by Elsevier Science B.V. All rights reserved.

Держатели документа:
Wageningen Univ Agr, Dept Biomol Sci, Biochem Lab, NL-6703 HA Wageningen, Netherlands
Russian Acad Sci, GK Skrybin Inst Biochem & Physiol Microorganisms, Pushchino 142292, Russia
Russian Acad Sci, Inst Biophys, Siberian Branch, Krasnoyarsk 660036, Russia
ИБФ СО РАН : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Bondar, V.S.; Boersma, M.G.; van Berkel, WJH; Finkelstein, Z.I.; Golovlev, E.L.; Baskunov, B.P.; Vervoort, J...; Golovleva, L.A.; Rietjens, IMCM

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Characterization of biodegradable poly-3-hydroxybutyrate films and pellets loaded with the fungicide tebuconazole [Text] / T. Volova [et al.] // Environ. Sci. Pollut. Res. - 2016. - Vol. 23, Is. 6. - P5243-5254, DOI 10.1007/s11356-015-5739-1. - Cited References:33. - This study was supported by the Russian Science Foundation (grant no. 14-26-00039). . - ISSN 0944-1344. - ISSN 1614-7499

РУБ Environmental Sciences
Рубрики:
CONTROLLED-RELEASE
   MICROBIAL-DEGRADATION
   BRASSICA-NAPUS
   OILSEED RAPE
Кл.слова (ненормированные):
Poly(3-hydroxybutyrate) -- Tebuconazole -- Slow-release formulations -- Controlled release -- Antifungal activity
Аннотация: Biodegradable polymer poly(3-hydroxybutyrate) (P3HB) has been used as a matrix to construct slow-release formulations of the fungicide tebuconazole (TEB). P3HB/TEB systems constructed as films and pellets have been studied using differential scanning calorimetry, X-ray structure analysis, and Fourier transform infrared spectroscopy. TEB release from the experimental formulations has been studied in aqueous and soil laboratory systems. In the soil with known composition of microbial community, polymer was degraded, and TEB release after 35 days reached 60 and 36 % from films and pellets, respectively. That was 1.23 and 1.8 times more than the amount released to the water after 60 days in a sterile aqueous system. Incubation of P3HB/TEB films and pellets in the soil stimulated development of P3HB-degrading microorganisms of the genera Pseudomonas, Stenotrophomonas, Variovorax, and Streptomyces. Experiments with phytopathogenic fungi F. moniliforme and F. solani showed that the experimental P3HB/TEB formulations had antifungal activity comparable with that of free TEB.

WOS
Держатели документа:
RAS, SB, Inst Biophys, 50-50 Akad Gorodok, Krasnoyarsk 660036, Russia.

Доп.точки доступа:
Volova, Tatiana; Zhila, Natalia; Vinogradova, Olga; Shumilova, Anna; Prudnikova, Svetlana; Shishatskaya, Ekaterina; Russian Science Foundation [14-26-00039]

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