110-2 Peanut Seed Development: Effect of Water-Deficit Stress On Transcripts, Proteins, and Metabolites Involved In Seed Metabolism.



Monday, October 17, 2011: 1:35 PM
Henry Gonzalez Convention Center, Room 007B, River Level

Kameswara Rao Kottapalli1, Paxton Payton2, Diane L. Rowland3, Mark D. Burow4 and James Mahan2, (1)Texas Tech University, Lubbock, TX
(2)Plant Stress and Germplasm Development, USDA-ARS, Lubbock, TX
(3)Agronomy Department, University of Florida, Gainesville, FL
(4)Plant and Soil Science, Texas AgriLife and Texas Tech University, Lubbock, TX
Seeds as energy storehouse, primarily nourish the developing embryo and sustain the young seedling during germination. In addition, due to their oil, protein and carbohydrate composition, seeds serve as an important food resource for both humans and animal consumption. Legumes seeds and in particular peanuts are inexpensive source of plant proteins and edible oil. Owing to their importance in global food security, it is necessary to understand the genetic, biochemical and physiological mechanisms for better incorporation of the main storage reserves in seeds, such as proteins, fatty acids, starch, and secondary metabolites. This in turn will foster breeding programs producing more efficient and productive peanut genotypes. Here we review the current understanding of seed development in peanut as well as conserved developmental mechanisms between legumes and Arabidopsis. In this talk we will present the biochemistry, genetics, and transcriptional regulation during seed development with emphasis on metabolic pathways of storage reserve biosynthesis. Additionally, we will discuss the effects of drought on seed metabolism, oil quality and composition.
See more from this Division: C07 Genomics, Molecular Genetics & Biotechnology
See more from this Session: Symposium--RNA Profiling Applications to Crop Improvement