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Title: Clostridium thermocellum DSM 1313 transcriptional responses to redox perturbation

Abstract

Clostridium thermocellum is a promising consolidated bioprocessing candidate organism capable of directly converting lignocellulosic biomass to ethanol. Current ethanol yields, productivities, and growth inhibitions are industrial deployment impediments for commodity fuel production by this bacterium. Redox imbalance under certain conditions and in engineered strains may contribute to incomplete substrate utilization and may direct fermentation products to undesirable overflow metabolites. As a result, towards a better understanding of redox metabolism in C. thermocellum, we established continuous growth conditions and analyzed global gene expression during addition of two stress chemicals (methyl viologen and hydrogen peroxide) which changed the fermentation redox potential.

Authors:
 [1];  [2];  [2];  [2];  [1];  [1];  [2]
  1. Univ. of Tennessee, Knoxville, TN (United States); Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
  2. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Publication Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE Office of Science (SC)
OSTI Identifier:
1238009
Grant/Contract Number:  
AC05-00OR22725
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Biotechnology for Biofuels
Additional Journal Information:
Journal Volume: 8; Journal Issue: 1; Journal ID: ISSN 1754-6834
Publisher:
BioMed Central
Country of Publication:
United States
Language:
English
Subject:
59 BASIC BIOLOGICAL SCIENCES; Clostridium thermocellum DSM 1313; microarray; transcriptomics; methyl viologen; chemostat; redox; sulfate; GS-GOGAT; hydrogenase

Citation Formats

Sander, Kyle B., Wilson, Charlotte M., Rodriquez, Jr., Miguel, Klingeman, Dawn Marie, Davison, Brian H., Brown, Steven D., and Rydzak, Thomas. Clostridium thermocellum DSM 1313 transcriptional responses to redox perturbation. United States: N. p., 2015. Web. doi:10.1186/s13068-015-0394-9.
Sander, Kyle B., Wilson, Charlotte M., Rodriquez, Jr., Miguel, Klingeman, Dawn Marie, Davison, Brian H., Brown, Steven D., & Rydzak, Thomas. Clostridium thermocellum DSM 1313 transcriptional responses to redox perturbation. United States. doi:10.1186/s13068-015-0394-9.
Sander, Kyle B., Wilson, Charlotte M., Rodriquez, Jr., Miguel, Klingeman, Dawn Marie, Davison, Brian H., Brown, Steven D., and Rydzak, Thomas. Sat . "Clostridium thermocellum DSM 1313 transcriptional responses to redox perturbation". United States. doi:10.1186/s13068-015-0394-9. https://www.osti.gov/servlets/purl/1238009.
@article{osti_1238009,
title = {Clostridium thermocellum DSM 1313 transcriptional responses to redox perturbation},
author = {Sander, Kyle B. and Wilson, Charlotte M. and Rodriquez, Jr., Miguel and Klingeman, Dawn Marie and Davison, Brian H. and Brown, Steven D. and Rydzak, Thomas},
abstractNote = {Clostridium thermocellum is a promising consolidated bioprocessing candidate organism capable of directly converting lignocellulosic biomass to ethanol. Current ethanol yields, productivities, and growth inhibitions are industrial deployment impediments for commodity fuel production by this bacterium. Redox imbalance under certain conditions and in engineered strains may contribute to incomplete substrate utilization and may direct fermentation products to undesirable overflow metabolites. As a result, towards a better understanding of redox metabolism in C. thermocellum, we established continuous growth conditions and analyzed global gene expression during addition of two stress chemicals (methyl viologen and hydrogen peroxide) which changed the fermentation redox potential.},
doi = {10.1186/s13068-015-0394-9},
journal = {Biotechnology for Biofuels},
number = 1,
volume = 8,
place = {United States},
year = {Sat Dec 12 00:00:00 EST 2015},
month = {Sat Dec 12 00:00:00 EST 2015}
}

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Free Publicly Available Full Text
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Cited by: 7 works
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Works referenced in this record:

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