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

BER Research Highlights


Researchers Target Expressed Genes in Vascular Tissues of Switchgrass
Published: July 29, 2010
Posted: October 01, 2010

Using a laser-based technique for microdissecting plant tissues, BESC researchers have targeted and analyzed DNA that is actively expressed in switchgrass vascular tissues where secondary cell walls are synthesized and reinforced with lignin. A total of 2,766 unique genes were identified from 5,734 expressed DNA segments (known as expressed sequence tags or ESTs). A significant number of these expressed sequences are novel with no significant hits to existing EST data. A small subset of the identified genes was targeted with labeled probes to visualize the expression of these genes in live plant tissue, and researchers found that several genes have much higher expression in the vascular bundles. The gene list generated from this study provides an important genomic resource for narrowing the range of molecular targets that could play key roles in modifying the lignin content of switchgrass and other related bioenergy crops.

Reference: This research was reported in Srivastava, A. C., et al. 2010. “Collection and Analysis of Expressed Sequence Tags Derived from Laser Capture Microdissected Switchgrass (Panicum virgatum L. Alamo) Vascular Tissues,” BioEnergy Research, DOI: 10.1007/s12155-010-9080-8.ps.

Contact: John Houghton, SC-23.2, (301) 903-8288
Topic Areas:

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

Division: SC-23.2 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

Aug 24, 2019
New Approach for Studying How Microbes Influence Their Environment
A diverse group of scientists suggests a common framework and targeting of known microbial processes [more...]

Aug 08, 2019
Nutrient-Hungry Peatland Microbes Reduce Carbon Loss Under Warmer Conditions
Enzyme production in peatlands reduces carbon lost to respiration under future high temperatures. [more...]

Aug 05, 2019
Amazon Forest Response to CO2 Fertilization Dependent on Plant Phosphorus Acquisition
AmazonFACE Model Intercomparison. The Science Plant growth is dependent on the availabi [more...]

Jul 29, 2019
A Slippery Slope: Soil Carbon Destabilization
Carbon gain or loss depends on the balance between competing biological, chemical, and physical reac [more...]

Jul 15, 2019
Field Evaluation of Gas Analyzers for Measuring Ecosystem Fluxes
How gas analyzer type and correction method impact measured fluxes. The Science A side- [more...]

List all highlights (possible long download time)