Inhibition of diacylglycerol acyltransferase by phenylpyropenes produced by Penicillium griseofulvum F1959

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Title
Inhibition of diacylglycerol acyltransferase by phenylpyropenes produced by Penicillium griseofulvum F1959
Author(s)
Seung Woong LeeMun Chual Rho; Jung Ho Choi; K Kim; Y S Choi; Hyun Sun Lee; Young Kook Kim
Bibliographic Citation
Journal of Microbiology and Biotechnology, vol. 18, no. 11, pp. 1785-1788
Publication Year
2008
Abstract
A bacterium designated strain BD-a59, able to degrade all six benzene, toluene, ethylbenzene, and o-, m-, and p-xylene (BTEX) compounds, was isolated by plating gasoline-contaminated sediment from a gasoline station in Geoje, Republic of Korea, without enrichment, on minimal salts basal (MSB) agar containing 0.01% yeast extract, with BTEX as the sole carbon and energy source. Taxonomic analyses showed that the isolate belonged to Pseudoxanthomonas spadix, and until now, the genus Pseudoxanthomonas has not included any known BTEX degraders. The BTEX biodegradation rate was very low in MSB broth, but adding a small amount of yeast extract greatly enhanced the biodegradation. Interestingly, degradation occurred very quickly in slurry systems amended with sterile soil solids but not with aqueous soil extract. Moreover, if soil was combusted first to remove organic matter, the enhancement effect on BTEX biodegradation was lost, indicating that some components of insoluble organic compounds are nutritionally beneficial for BTEX degradation. Reverse transcriptase PCR-based analysis of field-fixed mRNA revealed expression of the tmoA gene, whose sequence was closely related to that carried by strain BD-a59. This study suggests that strain BD-a59 has the potential to assist in BTEX biodegradation at contaminated sites.
Keyword
Diacylglycerol acyltransferase (DGAT)HepG2 cellPenicillium griseofulvum F1959PhenylpyropeneTriglyceride
ISSN
1017-7825
Publisher
Korea Soc-Assoc-Inst
DOI
http://dx.doi.org/10.4014/jmb.0800.079
Type
Article
Appears in Collections:
Jeonbuk Branch Institute > Immunoregulatory materials Research Center > 1. Journal Articles
Ochang Branch Institute > Natural Medicine Research Center > 1. Journal Articles
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