Photosynthetic Performance of Bread and Durum Wheat under Heat Stress
September 9, 2010| |
A. S. Dias of the Instituto Nacional dos Recursos Biológicos, Portugal, and colleagues investigated the effect of heat stress to photosynthetic responses of four genotypes of Triticum aestivum L. (Sever and Golia) and Triticum turgidum subsp. durum (Acalou and TE 9306). This study was conducted during the grain filling stage of wheat.
Results showed that all wheat genotypes except Golia exhibited related patterns in carbon dioxide concentration, net photosynthesis (the photosynthesis in excess of the respiratory demand), and speed of water evaporation from spores. Furthermore, the changes in the net photosynthesis were associated with the adjustments in stomatal control. Fluorescence parameters of photosynthetic pigment enhanced the heat protective mechanisms and the efficiency of photosystem II, the protein responsible for providing electrons for photosynthesis reactions. The scientists conclude that when heat stressed bread and durum wheat genotypes are compared, the photosynthetic performance of durum wheat displays a higher tolerance.
Read the abstract of this study at http://onlinelibrary.wiley.com/doi/10.1111/j.1439-037X.2010.00442.x/abstract.
| |
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
- FAO: No Food Crisis But Market Stability Needed
- King Abdullah Awarded FAO's Agricola Medal
- Biofortification in Staple Foods Still Relevant
- AGRF to Push for Agricultural Growth
- Funds for Agricultural Development in Africa
- ISU Scientists Prove that Orange Maize is Vitamin A-Rich
- AgriLife Researcher Breeds Blue Hibiscus
- India Biotech Information Goes Online
- DBT Drafts Revised Formats for GM Regulatory Approvals
- Laureate Gebisa Ejeta Inspires Young Students of India
- CIMMYT and Indian Gov't to Build Agri Research Center in South Asia
- PBA to Launch High Yielding Peas in Western Australia
- UK Scientists Draft the Wheat Genome Sequence
- Valencia's Rice Endangered by Blast Disease
-
Research Highlights
- Arabidopsis Plants Acclimate to Water Deficit at Low Cost through Changes of Carbon Usage
- Pseudomonas Induces Defense Genes in Wheat Roots
- Photosynthetic Performance of Bread and Durum Wheat under Heat Stress
-
Announcements
- 7th Latin American and Caribbean Meeting on Agri-Biotech
- 2nd European Innovation Summit
-
Resources
- Europe Wheat Website
-
Read the latest: - Biotech Updates (April 30, 2025)
- Gene Editing Supplement (April 30, 2025)
- Gene Drive Supplement (February 22, 2023)
-
Subscribe to BU: - Share
- Tweet