Navigation Links
Research on wood formation sheds light on plant biology
Date:8/23/2012

Scientists at North Carolina State University have discovered a phenomenon never seen before in plants while studying molecular changes inside tree cells as wood is formed.

In research published online in Proceedings of the National Academy of Sciences the week of Aug. 20, the team found that one member of a family of proteins called transcription factors took control of a cascade of genes involved in forming wood, which includes a substance called lignin that binds fibers together and gives wood its strength.

The controller protein regulated gene expression on multiple levels, preventing abnormal or stunted plant growth. And it did so in a novel way.

The controller, a spliced variant of the SND1 family, was found in the cytoplasm outside the cell nucleus. This is abnormal, because transcription factor proteins are always in the nucleus. But when one of the four other proteins in its family group was present, the spliced variant was carried into the nucleus, where it bound to the family member, creating a new type of molecule that suppressed the expression of a cascade of genes.

"This is nothing that's been observed before in plants," says Dr. Vincent Chiang, co-director of NC State's Forest Biotechnology Group with Dr. Ron Sederoff. Chiang's research team was the first to produce a transgenic tree with reduced lignin. High lignin levels are desirable for lumber, but lignin is removed during the process of making paper or manufacturing biofuels.

Chiang, a professor in the College of Natural Resources, described the team's finding as the long-sought path to understanding the hierarchy of gene regulation for wood formation.


'/>"/>

Contact: Dr. Vincent Chiang
vincent_chiang@ncsu.edu
919-513-0098
North Carolina State University
Source:Eurekalert

Page: 1

Related biology news :

1. Origami inspires research into materials that self-assemble when exposed to light
2. MDA supports Duchenne muscular dystrophy research by University of Nevada School of Medicine
3. Iowa State, Ames Lab researchers study the structure of drug resistance in tuberculosis
4. Lawson researcher sings the baby blues
5. Brazil joins international marine research effort
6. Research identifies mechanism responsible for eye movement disorder
7. Research reveals unique solution to gene regulation
8. Organic study of live pancreatic tissue yields new opportunities for diabetes research
9. ASU awarded $3 million to research solar energy technologies, launch energy Ph.D. program
10. ORNL researchers improve soil carbon cycling models
11. Finding new research frontiers in a single cell
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:10/29/2014)... its kind to date, researchers have used DNA sequencing ... for autism. Joseph Buxbaum, Ph.D., Icahn School of Medicine ... Broad Institute of Harvard and MIT, and their colleagues ... parents and unrelated people. They identified changes in 107 ... for autism spectrum disorder (ASD) – a jump from ...
(Date:10/29/2014)... have been blamed for increasing the risk of ... family history of schizophrenia, are widely accepted. Others, ... a parasite transmitted by soil, undercooked meat and ... A new study by Gary Smith, professor of ... Pennsylvania,s School of Veterinary Medicine, used epidemiological modeling ...
(Date:10/29/2014)... all the rage. Thousands of scientists worldwide are conducting ... titanium dioxide nanoparticles from sun creams can get through ... from electronic products are as hazardous for the lungs ... food can get into the blood via the intestinal ... are flowing – and the number of scientific projects ...
Breaking Biology News(10 mins):Penn vet professor investigates parasite-schizophrenia connection 2Penn vet professor investigates parasite-schizophrenia connection 3Nanosafety research: The quest for the gold standard 2Nanosafety research: The quest for the gold standard 3
... Researchers at the RIKEN Plant Science Center (PSC) have ... in the model plant Arabidopsis protects cells from harmful ... the journal PLoS Genetics , the finding contributes ... biological processes in both plants and animals, opening the ...
... seals often encounter murky water that impedes their vision; ... Extending their vibration-sensitive whiskers, the mammals are almost as ... if guided by sight. Wolf Hanke and his colleagues ... how harbour seals perceive the world through their flow-sensitive ...
... 2011 UT Southwestern Medical Center researchers have discovered a ... to a treatment to keep cancer cells from spreading. ... 1 (Rasip1) is so specific and central to so many ... form, said Dr. Ondine Cleaver, assistant professor of molecular biology ...
Cached Biology News:Discovery of DNA silencing mechanism reveals how plants protect their genome 2Seals sense shapes using their whiskers to feel wakes 2UT Southwestern researchers find protein that might be key to cutting cancer cells' blood supply 2
(Date:10/31/2014)... , Oct. 31, 2014  Tavistock Development ... by Tavistock Group, celebrated the groundbreaking of the ... City. The 92,000-square-foot, three-story facility ... Central Florida designed specifically for life ... the heart of the 650-acre Lake Nona Medical ...
(Date:10/30/2014)... 30, 2014  Ardelyx, Inc. (NASDAQ: ... cardio-renal, gastrointestinal and metabolic diseases, today announced that ... on Thursday, November 6, 2014. Following the announcement, ... conference call and webcast at 4:30pm ET to ... business update. The live webcast can ...
(Date:10/30/2014)... SoundConnect , an industry leading ... end users the key to turning this already ... adding voice enablement and hybrid audio conferencing. , ... communication tool that includes presence, instant messaging and ... becomes a comprehensive unified communications solution. Adding the ...
(Date:10/30/2014)... 30, 2014 Whitehouse Laboratories has formally ... Stability Testing and Package Test Capacity. Responding to growing ... a dramatic increase in environmental chamber storage space that ... and aging samples to be securely held on site ... capital expenditure has already taken place with the recent ...
Breaking Biology Technology:GuideWell Innovation Center Groundbreaking Hosted by Tavistock Development Company at Lake Nona Medical City 2GuideWell Innovation Center Groundbreaking Hosted by Tavistock Development Company at Lake Nona Medical City 3Ardelyx to Report Third Quarter 2014 Financial Results on November 6, 2014 2SoundConnect Launches Voice Enablement and Hybrid Audio Conferencing for Office 365 2SoundConnect Launches Voice Enablement and Hybrid Audio Conferencing for Office 365 3Whitehouse Labs Announces Major Capital Investment in Stability and Storage Testing Capacity 2Whitehouse Labs Announces Major Capital Investment in Stability and Storage Testing Capacity 3
... researchers have analyzed how the placement of metallic contacts ... material as a factor of junction length, width and ... first quantitative study of electron transport through metal-graphene junctions ... Information on the ways in which attaching metal contacts ...
... have managed to manufacture new polymer-stabilised silver nanoparticles. The ... are used in textiles, floor coatings and paints even ... not entirely known. Finnish researchers now think that exposure ... nanoparticles to polymers. The research results will soon be ...
... , ... ... , , , ... ...
Cached Biology Technology:Study quantifies the electron transport effects of placing metal contacts onto graphene 2Study quantifies the electron transport effects of placing metal contacts onto graphene 3The toxicity of antimicrobial silver in products can be reduced 2The toxicity of antimicrobial silver in products can be reduced 3Wright State University Boonshoft School of Medicine and Miami Valley Hospital Announce Major New Initiative 2Wright State University Boonshoft School of Medicine and Miami Valley Hospital Announce Major New Initiative 3Wright State University Boonshoft School of Medicine and Miami Valley Hospital Announce Major New Initiative 4Wright State University Boonshoft School of Medicine and Miami Valley Hospital Announce Major New Initiative 5Wright State University Boonshoft School of Medicine and Miami Valley Hospital Announce Major New Initiative 6