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Transcriptional profiling of genes involved in n-hexadecane compounds assimilation in the hydrocarbon degrading Dietzia cinnamea P4 strain.

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Title
Transcriptional profiling of genes involved in n-hexadecane compounds assimilation in the hydrocarbon degrading Dietzia cinnamea P4 strain.
Published in
Brazilian Journal of Microbiology, October 2013
DOI 10.1590/s1517-83822013000200044
Pubmed ID
Authors

Procópio L, de Cassia Pereira E Silva M, van Elsas JD, Seldin L, Luciano Procópio, Michele de Cassia Pereira e Silva, Jan Dirk van Elsas, Lucy Seldin

Abstract

The petroleum-derived degrading Dietzia cinnamea strain P4 recently had its genome sequenced and annotated. This allowed employing the data on genes that are involved in the degradation of n-alkanes. To examine the physiological behavior of strain P4 in the presence of n-alkanes, the strain was grown under varying conditions of pH and temperature. D. cinnamea P4 was able to grow at pH 7.0-9.0 and at temperatures ranging from 35 ºC to 45 ºC. Experiments of gene expression by real-time quantitative RT-PCR throughout the complete growth cycle clearly indicated the induction of the regulatory gene alkU (TetR family) during early growth. During the logarithmic phase, a large increase in transcriptional levels of a lipid transporter gene was noted. Also, the expression of a gene that encodes the protein fused rubredoxin-alkane monooxygenase was enhanced. Both genes are probably under the influence of the AlkU regulator.

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Mendeley readers

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Geographical breakdown

Country Count As %
Unknown 21 100%

Demographic breakdown

Readers by professional status Count As %
Researcher 4 19%
Student > Ph. D. Student 3 14%
Student > Postgraduate 2 10%
Student > Bachelor 2 10%
Student > Master 2 10%
Other 2 10%
Unknown 6 29%
Readers by discipline Count As %
Agricultural and Biological Sciences 5 24%
Biochemistry, Genetics and Molecular Biology 5 24%
Chemistry 2 10%
Unspecified 1 5%
Neuroscience 1 5%
Other 1 5%
Unknown 6 29%