BER launches Environmental System Science Program. Visit our new website under construction!

U.S. Department of Energy Office of Biological and Environmental Research

BER Research Highlights


Wood Degrading Fungi Use Specialized Systems for Degrading Different Plant Types
Published: May 06, 2011
Posted: June 22, 2011

“Brown rot” and “white rot” fungi from forest floors are among the few organisms on Earth that can fully degrade both the long, repeated sugar chains (cellulose and hemicellulose) and the complex, interlinked network of aromatic compounds (lignin) that make up woody plant material. The two classes of fungi use distinct (but poorly understood) enzyme systems to break down biomass and show strong preferences for particular types of wood. A collaborative team of researchers at the DOE Great Lakes Bioenergy Research Center and the DOE Joint Genome Institute have examined representative species of brown and white fungi to determine which specific genes involved in biomass deconstruction are deployed to attack aspen or pine wood. These studies revealed that the two types of fungi used distinct deconstruction systems, and the expression of these systems was heavily influenced by the type of wood being degraded. Many genes identified in the study correspond to known biomass degradation enzymes, but a significant fraction have no currently known catalytic function and will be the subject of further investigation. The results of this study increase our understanding of molecular mechanisms that allow degradation of biomass and could lead to the identification of new systems for plant deconstruction and biofuels production.

Reference: Wymelenberg, A. V., et al. 2011 “Gene Expression of Wood Decay Fungi Postia placenta and Phanerochaete chrysosporium is Significantly Altered by Plant Species,” Applied and Environmental Microbiology, doi:10.1128/AEM.00508-11.

Contact: Joseph Graber, SC-23.2, (301) 903-1239
Topic Areas:

  • Research Area: Genomic Analysis and Systems Biology
  • Research Area: Plant Systems and Feedstocks, Plant-Microbe Interactions
  • Research Area: DOE Joint Genome Institute (JGI)
  • Research Area: Sustainable Biofuels and Bioproducts
  • Research Area: DOE Bioenergy Research Centers (BRC)

Division: SC-33.2 Biological Systems Science Division, BER

 

BER supports basic research and scientific user facilities to advance DOE missions in energy and environment. More about BER

Recent Highlights

Mar 23, 2021
Molecular Connections from Plants to Fungi to Ants
Lipids transfer energy and serve as an inter-kingdom communication tool in leaf-cutter ants&rsqu [more...]

Mar 19, 2021
Microbes Use Ancient Metabolism to Cycle Phosphorus
Microbial cycling of phosphorus through reduction-oxidation reactions is older and more widespre [more...]

Feb 22, 2021
Warming Soil Means Stronger Microbe Networks
Soil warming leads to more complex, larger, and more connected networks of microbes in those soi [more...]

Jan 27, 2021
Labeling the Thale Cress Metabolites
New data pipeline identifies metabolites following heavy isotope labeling.

Analysis [more...]

Aug 31, 2020
Novel Bacterial Clade Reveals Origin of Form I Rubisco
Objectives

  • All plant biomass is sourced from the carbon-fixing enzyme Rub [more...]

List all highlights (possible long download time)