SbNrat1 Gene in Sorghum Functions for Aluminum ToleranceJune 7, 2017
The Natural Resistance Associated Macrophage Proteins (NRAMP) play roles in metal transport in plants. Previous studies have shown that OsNrat1 (OsNramp4) in rice (Oryza sativa) encodes an aluminum transporter, which is required for rice aluminum tolerance.
Researchers from Guangxi University, led by Muxue Lu, characterized an NRAMP member in sorghum (Sorghum bicolor), SbNrat1, which is homologous to OsNrat1. SbNrat1 was found to be expressed in both roots and shoots, and its expression is not induced by aluminum treatment.
When expressed in yeast, the SbNrat1 protein transports the trivalent aluminum ion, but not manganese and cadmium. To further prove its homology to OsNrat1, it was introduced into the rice osnrat1 mutant. SbNrat1's expression in the mutant rescued its sensitivity to aluminum. However, no correlation between aluminum tolerance and SbNrat1 expression levels was found.
These data indicate that the SbNrat1 functions as an aluminum transporter and is involved in basic aluminum tolerance in sorghum.
For more information, read the article in Plant Science.
The Crop Biotech Update is a weekly newsletter of ISAAA, a non-for-profit organization. The CBU is distributed for free to over 23,000 subscribers worldwide to inform them about the key developments in biosciences, especially in agricultural 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
- Report Shows 20 Years of Economic and Environmental Benefits from Biotech/GM Crops
- Public Learns about Biotech for Climate Smart Agriculture at World Environment Day Commemoration in Uganda
- Tanzanian Farmers Urge Gov't to Hasten Delivery of GE Crops
- Salk Scientists Help Plants Pump Iron Using Gene Variants
- Taking the Initial Step Towards Dev't of Epigenetically Modified Cotton
- Current Advances in Genome Editing Technology and its Application in Crop Improvement
- Australia's OGTR Receives License Application for Commercial Release of GM DHA Canola
- Australia's Gene Technology Regulator Shares Regulatory Practices with Vietnam
- India's National Academy of Agricultural Sciences Endorses Commercial Release of GM Mustard
- Scientists Discover Plant 'Brain' Controlling Seed Development
- EFSA Reiterates Previous Risk Assessment Conclusion on NK603 Valid and Applicable
- SbNrat1 Gene in Sorghum Functions for Aluminum Tolerance
Plant Breeding Innovations
- Development of Gene-Specific Rice Mutants via AvrXa23-based TALENs
- Nagoya University Develops Highly Efficient CRISPR-Cas9 Vector for Arabidopsis
- Biosafety in Plant Biotechnology Course
Subscribe to CBU: