Navigation Links
Maize cell wall genes identified, giving boost to biofuel research
Date:11/19/2009

WEST LAFAYETTE, Ind. - Purdue University scientists have helped identify and group the genes thought to be responsible for cell wall development in maize, an effort that expands their ability to discover ways to produce the biomass best suited for biofuels production.

The Purdue scientists, led by Nicholas Carpita, a professor of plant cell biology, published their findings on the 750 cell wall genes in the journal Plant Physiology on Thursday (Nov. 19). They also were co-authors on a study, published Thursday (Nov. 19) in Science, that for the first time sequenced the genome of maize.

In discovering the some 32,000 genes of maize, scientists can better study the function of individual genes and how each affects all aspects of the plant's development. Purdue's scientists are particularly interested in the genes that regulate cellulose, lignin and other parts of plant's cell walls.

"This gives us an inventory of the genes that could become possible targets for modification in the production of biomass," Carpita said. "We want to be able to control the structure of the cell walls."

Carpita and Maureen McCann, a professor of biology and a co-author on both papers, are part of Purdue's C3Bio research project, which is aimed at using thermal and chemical catalysts to create biofuels that utilize more of a plant's carbon. The team hopes to engineer catalysts or catalytic sites into plants and use heat or chemical catalysts to directly convert the biomass into fuel.

"The grasses, including maize, make a unique kind of cell wall," Carpita said. "Beyond the cell wall genes, having a complete genome will enable us to identify developmental controls, such as genes that delay flowering to continue production of biomass, or alter pathways so that plants accumulate more sugar in the stem."

The annotation of the maize cell wall genes also led to the discovery of more than 80 mutants involved in cell wall production. Scientists can grow plants that have a gene mutation and compare them to those without the mutation to understand how changes in the gene functions in biomass accumulation or quality in maize.

"Discovering the genome sequence of maize is a huge step forward in getting at the functions of genes that will be useful in developing new bioenergy crops," McCann said. "We will be able to identify mutants in key genes of interest and then assess how mutation changes the plant cell wall and if those changes are useful."

Researchers found that maize's cell wall genes were more similar to those of rice than to Arabidopsis, a plant often used as a model in scientific experiments.

"Now we're starting to see differences in the families of related genes and how those genes are expressed," said Bryan Penning, McCann's lab manager and a co-author on both papers. "Now that we have the sequence, we can start building a reservoir of data on the expression patterns of the cell wall genes."

The next step in using the data collected will include testing the mutant genes and exploring how expression of particular genes can be regulated to produce desired characteristics in a maize plant.


'/>"/>

Contact: Brian Wallheimer
bwallhei@purdue.edu
765-496-2050
Purdue University
Source:Eurekalert

Related biology news :

1. New map of variation in maize genetics holds promise for developing new varieties
2. The amazing maze of maize evolution
3. Researchers find the earliest evidence of domesticated maize
4. Early origins of maize in Mexico
5. Ancient Mexican maize varieties
6. Team finds an economical way to boost the vitamin A content of maize
7. If corn is biofuels king, tropical maize may be emperor
8. Simulating kernel production influences maize model accuracy
9. Transgenic maize is more susceptible to aphids
10. First all-African GM crop is resistant to maize streak virus
11. Largest gene study of childhood IBD identifies 5 new genes
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:8/15/2017)... Aug. 15 2017   ivWatch LLC , a medical device ... therapy, today announced receipt of its ISO 13485 Certification, the global ... International Organization for Standardization (ISO┬«). ... ivWatch Model 400 Continuous Monitoring device for the early detection of ... "This is an important milestone ...
(Date:6/14/2017)... IBM ) is introducing several innovative partner startups at VivaTech ... startups and global businesses, taking place in Paris ... will showcase the solutions they have built with IBM Watson ... France is one of the most dynamic ... in the number of startups created between 2012 and 2015*, ...
(Date:5/6/2017)... , May 5, 2017 ... just announced a new breakthrough in biometric authentication ... exploits quantum mechanical properties to perform biometric authentication. These ... smart semiconductor material created by Ram Group and ... finance, entertainment, transportation, supply chains and security. Ram ...
Breaking Biology News(10 mins):
(Date:10/12/2017)... ... October 12, 2017 , ... The Blavatnik Family ... and six Finalists of the 2017 Blavatnik Regional Awards for Young Scientists. ... and administered by the New York Academy of Sciences to honor the excellence ...
(Date:10/12/2017)... ... October 12, 2017 , ... ... publication of a United States multicenter, prospective clinical study that demonstrates the ... diagnostic test capable of identifying clinically significant acute bacterial and viral respiratory ...
(Date:10/12/2017)... ... 12, 2017 , ... AMRI, a global contract research, development ... patient outcomes and quality of life, will now be offering its impurity solutions ... new regulatory requirements for all new drug products, including the finalization of ICH ...
(Date:10/11/2017)... , ... October 11, 2017 , ... ... President Andi Purple announced Dr. Suneel I. Sheikh, the co-founder, CEO and ... Labs ), Inc. has been selected for membership in ARCS Alumni Hall ...
Breaking Biology Technology: