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Home → Publications → Tree Improvement and Genetics → Southern Forest Tree Improvement Conference → 30th Southern Forest Tree Improvement Conference (2009) → Analysis of Seed Redox Chemicals in Loblolly Pine to Improve Somatic Embryo Growth and Germination

Analysis of Seed Redox Chemicals in Loblolly Pine to Improve Somatic Embryo Growth and Germination

Glutathione/ glutathione disulfide and ascorbic acid /dehydroascorbate are two major redox pairs that control the redox-state in a developing seed. Recently these redox compounds have been shown to exert strong positive effects on embryo development in several plants including white spruce. A picture is emerging that early-stage embryo development occurs best in the presence of a reducing environment while late-stage development requires a shift to an oxidizing environment. Knowledge of physiological concentrations of these compounds during pine embryo development would allow us to better mimic the seed environment and improve somatic embryo development.


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Author(s): Gerald S. Pullman, Brandi Copeland, Xiaoyan Zeng

Publication: Tree Improvement and Genetics - Southern Forest Tree Improvement Conference - 2009