Transcription Factor Controlling Production of Secondary Cell Walls Found in Rice
June 6, 2018| |
Rice produces agronomic biomass residues that contain lots of secondary cell walls (SCW) comprising cellulose, hemicelluloses and lignin. However, the transcriptional regulation mechanism underlying SCWs synthesis in rice remains elusive. The team of Yafeng Ye from the Chinese Academy of Sciences studied a NAC family transcription factor (TF), OsSND2, and its relation to OsMYB61, a TF known to regulate SCW synthesis.
The team confirmed that OsSND2 directly binds to the promoter of OsMYB61. The OsSND2 TF was found to be localized in the nucleus and has transcriptional activation activity. Further analysis also indicated that OsSND2 was mainly expressed in internodes and panicles.
Using CRISPR-Cas9, the team developed OsSND2-knockout mutants. These mutants exhibited decreased cellulose content and downregulated expression of SCW related genes. Meanwhile, overexpression of OsSND2 resulted in rolled leaves, increased cellulose content, and upregulated expression of SCW related genes.
Taken together, these findings suggest that OsSND2 functions as a master regulator of SCW synthesis. This study can provide groundwork for manipulating plant biomass production.
For more information, read the article in Rice.
| |
Biotech Updates is a weekly newsletter of ISAAA, a not-for-profit organization. It is distributed for free to over 22,000 subscribers worldwide to inform them about the key developments in biosciences, especially in biotechnology. Your support will help us in our mission to feed the world with knowledge. You can help by donating as little as $10.
-
See more articles:
-
News from Around the World
- World Seed Congress Highlights Industry's Mission to Unlock the Power of Genetics
- Malawi Releases New Seed Policy
- Journalists Urged to Do Quality Reporting on Science and Technology
- Ethiopia Approves Environmental Release of Bt Cotton and Grants Special Permit for GM Maize
- Scientists Use Big Data to Map Corn's Response to Heat Stress
- Indian Farmers Use Whatsapp and Facebook to Demand GM Seeds
- ICRISAT and NRGene Make Chickpea and Pigeonpea Reference Genome Data Available
- Report Shows Costs of Chinese Delays on Biotech Crop Approvals
- European and French Studies Disprove Seralini's GM Maize Claims
-
Research Highlights
- Transgenic Cotton Allows Selective Fertilization for Weed Control
- Scientists Engineer Safflower to Produce Healthier Oil
- Scientists Discover the Role of Isopentenyltransferase in Lycopene Synthesis in Tomato
-
Announcements
- IAPB2018
-
Resources
- The Promise of Genome Editing Tools to Advance Environmental Health Research
-
Plant
- Transcription Factor Controlling Production of Secondary Cell Walls Found in Rice
- Chinese Scientists Develop Fungus-Resistant Cotton
- Researchers Analyze the Function of TaGW2 Genes in Wheat Grain Traits
- CRISPR-Mediated Editing of Rice False Smut Fungus
-
Read the latest: - Biotech Updates (April 24, 2024)
- Gene Editing Supplement (April 24, 2024)
- Gene Drive Supplement (February 22, 2023)
-
Subscribe to BU: - Share
- Tweet