The World's #1 Renewable Energy Network for News, Information, and Companies.
Untitled Document

Turning Fungus into Fuel

A spidery fungus with a voracious appetite for military uniforms and canvas tents could hold the key to improvements in the production of biofuels, a team of government, academic and industry researchers has announced.

In a paper published Sunday in Nature Biotechnology, researchers from the Los Alamos National Laboratory and the Department of Energy’s Joint Genome Institute announced that the genetic sequence of the fungus Tricoderma reesei has uncovered important clues about how the organism breaks down plant fibers into simple sugars. The finding could unlock possibilities for industrial processes that can more efficiently and cost effectively convert corn, switchgrass and even cellulose-based municipal waste into ethanol. Ethanol from waste products is a more-carbon-neutral alternative to gasoline.

The fungus T. reesei rose to dubious fame during World War II when military leaders discovered it was responsible for rapid deterioration of clothing and tents in the South Pacific. Named after Dr. Elwyn T. Reese, who, with colleagues, originally isolated the hungry fungus, T. reesei was later identified as a source of industrial enzymes and a role model for the conversion of cellulose and hemicellulose — plant fibers — into simple sugars.

The organism uses enzymes it creates to break down human-indigestible fibers of plants into the simplest form of sugar, known as a monosaccharide. The fungus then digests the sugars as food.

Researchers decoded the genetic sequence of T. reesei in an attempt to discover why the deep green fungus was so darned good at digesting plant cells. The sequence results were somewhat surprising. Contrary to what one might predict about the gene content of a fungus that can eat holes in tents, T. reesei had fewer genes dedicated to the production of cellulose-eating enzymes than its counterparts.

“We were aware of T. reesei’s reputation as producer of massive quantities of degrading enzymes, however we were surprised by how few enzyme types it produces, which suggested to us that its protein secretion system is exceptionally efficient,” said Los Alamos bioscientist Diego Martinez (also at the University of New Mexico), the study’s lead author. The researchers believe that T. reesei’s genome includes “clusters” of enzyme-producing genes, a strategy that may account for the organism’s efficiency at breaking down cellulose.

On an industrial scale, T. reesei could be employed to secrete enzymes that can be purified and added into an aqueous mixture of cellulose pulp and other materials to produce sugar. The sugar can then be fermented by yeast to produce ethanol.

“The sequencing of the Trichoderma reesei genome is a major step towards using renewable feedstocks for the production of fuels and chemicals,” said Joel Cherry, director of research activities in second-generation biofuels for Novozymes, a collaborating institution in the study. “The information contained in its genome will allow us to better understand how this organism degrades cellulose so efficiently and to understand how it produces the required enzymes so prodigiously. Using this information, it may be possible to improve both of these properties, decreasing the cost of converting cellulosic biomass to fuels and chemicals.”
Untitled Document

RELATED ARTICLES

Why Renewable Energy in Latin America is a Winner

Carlos Candiales Renewable energy in Latin America has made some important gains over the last decade and seems positioned to continue...

Economic Impact Study Provides Insight into the Benefits of Biofuel

Vince Font An economic impact study published by POET, one of the largest producers of ethanol in the world, is driving home the...

States Already Seek To Delay Clean Power Plan

Andrew Harris, Bloomberg Fifteen states led by coal-rich West Virginia asked a federal court to stall Obama administration rules intended to c...

PRESS RELEASES

Appalachian's Energy Center assists counties with landfill gas to energy projects

The Appalachian Energy Center at Appalachian State University recently completed a proj...

Array Technologies’ DuraTrack HZ v3 Continues to (R)evolutionize at SPI

Array Technologies, Inc. (ATI) prepares to showcase its recently launched tracking syst...

Redesigned HydroWorld.com Video Gallery

Hydropower news and information, and interesting promotional announcements are now avai...

30 days to GRC Annual Meeting & GEA Geothermal Energy Expo

The Geothermal Resources Council (GRC) has announced that it is only 30 days to go to t...

FEATURED BLOGS

Appalachian's Energy Center assists counties with landfill gas to energy projects

Activity supported with Z. Smith Reynolds Foundation funding BOONE—The Appalachian Energy Center at Appalachia...

Discounted Room Rates for Geothermal Event end Friday

Discounted room rates for GRC Annual Meeting & GEA Geothermal Energy Expo end Friday Room rates for this prestigi...

3 Reasons To Follow-Up

It’s very important to begin nurturing your relationship with a customer immediately after the project you sold...

Who are the Solar Early Adopters? - the “Tipping Point” is Looming

We all know why people go solar: investment purposes, immediate savings, environmental concerns, and grid independenc...

FINANCIAL NEWS

CURRENT MAGAZINE ISSUE

Volume 18, Issue 4
1507REW_C11

STAY CONNECTED

To register for our free
e-Newsletters, subscribe today:

SOCIAL ACTIVITY

Tweet the Editors! @jennrunyon

FEATURED PARTNERS



EVENTS

International Energy and Sustainability Conference 2015

The fourth International Energy and Sustainability Conference will be he...

2015 AREDAY Summit

The 12th Annual AREDAY Summit, August 8-13th in Snowmass Colorado. Engag...

StartUp Green

AREI, American Renewable Energy Institute, in partnership with ...

COMPANY BLOGS

New coating extends cylinder life 8 times longer than traditional c...

Hydroelectric turbine systems operate in extremely harsh conditions. The...

Clean Energy Patents Maintain High Levels in First Quarter, Solar L...

U.S. patents for Clean Energy technologies from the first quarter of 201...

SAP for Utilities Blog

The Eventful Group produces the annual SAP for Utilites Conference ...

NEWSLETTERS

Renewable Energy: Subscribe Now

Solar Energy: Subscribe Now

Wind Energy: Subscribe Now

Geothermal Energy: Subscribe Now

Bioenergy: Subscribe Now  

 

FEATURED PARTNERS