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Hormone and Develpoment in Plant

Hormone and Develpoment in Plant. Fruit and Seed Development Shoot Development Senescence Dormancy and Germination

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Hormone and Develpoment in Plant

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  1. Hormone and Develpoment in Plant

  2. Fruit and Seed DevelopmentShoot DevelopmentSenescenceDormancy and Germination Floral TransitionRoot DevelopmentLight ResponsesAbiotic StressInteractions Between Hormonal Pathways: Biosynthesis/SignalingHormones in Cellular GrowthHormone MetabolismPlant Growth Regulation Society of America Industry Hormone SignalingmicroRNAs in Hormone SignalingPeptide HormonesHormones in Agriculture and Horticulture, and Synthetic Plant Growth RegulatorsNovel Hormones/Hormones in Other Systems

  3. 2011国家自然科学基金 • 植物激素重大专项项目 • 面上项目涉及激素研究的题目

  4. 株高株型分蘖是增产的基本保证 早衰与成熟期影响作物的农学性状 • 植物生长物质在植物体内, 作为执行细胞通讯的化学信息在代谢、生长、形态建成等方面均起着十分重要的作用。 胚胎与种子发育影响作物的产量与品质 根系的生长发育影响作物的吸收水分与养料

  5. lateral root formation

  6. The developmental processes that are controlled by auxin flux

  7. 极性建立过程是器官形态建成中的核心问题（叶在空间三维轴向上的位置关系）极性建立过程是器官形态建成中的核心问题（叶在空间三维轴向上的位置关系） • Proximal-distal axis 基-顶轴，基部靠近SAM分化出叶柄，顶端远离SAM，分化出叶片 • Medial-lateral axis中-侧轴，沿着叶的中脉向叶的边缘水平扩展的方向 • Adaxial-abaxial axis近-远轴(背离SAM一侧，腹面) ，叶近-远轴的分化产生功能不同的区域

  8. 生长延缓剂抑制GA生物合成

  9. Shoot branching • SAM: shoot apical meristem • RAM: root apical meristem

  10. 油菜素内酯研究 Brassinolide Research

  11. The sites in the brassinosteroid molecule which are modified by metabolism More than 70 brassinosteroids compounds have been isolated from plants. (Plant Physiology and Biochemistry (2007) 45:95-107)

  12. Biosynthetic Pathways to Generate BL in Plants Representative genes that catalyze BR biosynthesis: DET2, CYP85A1, CYP85A2, CYP90A1, and CYP90B1 (Arabidopsis) CYP90D2 (rice) and CYP92A6 (pea)

  13. det2 (right) (de-etiolated2) Many BR mutant showed altered photomorphogenesis cpd (right) (constitutive photomorphogenesis and dwarfism) (Miklós et al., 1996; Chory et al., 1991; Song et al., 2009)

  14. Depletion of cellular brassinolide decreases embryo production and disrupts the architecture of the apical meristems in Brassica napus microspore-derived embryos Journal of Experimental Botany, 61(10): 2779–2794, 2010

  15. 研究对策 对产量赖以形成的植物生长发育状况进行调控 探索激素调控植物生长发育特别是产量形成的分子机制, 运用于育种实践 植物激素与植物生长发育和产量形成相关 (段留生，田晓莉《作物化学控制原理与技术》，2011年）

  16. 安全使用与评价 • 植物生长调节剂的要害 和防止

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