Degradation of styrene and ethylbenzene by Pseudomonas species Y2
نویسندگان
چکیده
منابع مشابه
Genetic and functional analysis of the styrene catabolic cluster of Pseudomonas sp. strain Y2.
The chromosomal region of Pseudomonas sp. strain Y2 involved in the conversion of styrene to phenylacetate (upper catabolic pathway) has been cloned and sequenced. Four catabolic genes, styABCD, and two regulatory genes, stySR, were identified. This gene cluster when transferred to Escherichia coli W confers to this phenylacetate-degrading host the ability to grow on styrene as the sole carbon ...
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The styrene degradative pathway in Pseudmonas putida CA-3 has previously been shown to be divided into an upper pathway involving the conversion of styrene to phenylacetic acid and a lower pathway for the subsequent degradation of phenylacetic acid. It is reported here that expression of the regulatory genes styS and styR is essential for transcription of the upper pathway, but not for degradat...
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Styrene metabolism in styrene-degrading Pseudomonas putida CA-3 cells has been shown to proceed via styrene oxide, phenylacetaldehyde, and phenylacetic acid. The initial step in styrene degradation by strain CA-3 is oxygen-dependent epoxidation of styrene to styrene oxide, which is subsequently isomerized to phenylacetaldehyde. Phenylacetaldehyde is then oxidized to phenylacetic acid. Styrene, ...
متن کاملThe Structure of Ethylbenzene, Styrene and Phenylacetylene Determined by Total Neutron Scattering
Organic solvents such as phenylacetylene, styrene and ethylbenzene are widely used in industrial processes, especially in the production of rubber or thermoplastics. Despite their important applications detailed knowledge about their structure is limited. In this paper the structures of these three aromatic solvents were investigated using neutron diffraction. The results show that many of thei...
متن کاملBiokinetic coefficients determination of a MBR for styrene and ethylbenzene as substrate base on Andrews model
In this study, a lab-scale membrane bioreactor (MBR) was operated for a period of more than 10 months to determine the biokinetic coefficients of the system under the hydraulic retention times (HRT) of 20, 15 and 10 hrs and sludge retention times (SRT) of 5-20 days. The results revealed that the biological removal efficiency of styrene and ethylbenzene at a solid retention time of 20 day and a ...
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ژورنال
عنوان ژورنال: FEMS Microbiology Letters
سال: 1991
ISSN: 0378-1097
DOI: 10.1016/0378-1097(91)90559-s