Reproduction in angiosperms 2

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Dr.Ravindra kshirsagar is associate Professor in Zoology,Modern College Pune

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Reproduction in angiosperms 2

  1. 1. Power Point Presentation Class : XIITopic : Reproduction in AngiospermsSub Topics: Development of Male Gametophyte, Development of Female Gametophyte and Double fertilization. DR. R. V. KSHIRSAGAR
  2. 2. Development of Male gametophyte Meiosis I Meiosis II Pollen mother cell (2n) (n) Pollen Tetrad (n) DR. R. V. KSHIRSAGAR
  3. 3. Development of Male gametophyte Meiosis I Meiosis II Pollen mother cell (2n) (n) Pollen Tetrad (n) DR. R. V. KSHIRSAGAR
  4. 4. Development of Male gametophyte Pollen grain Germ pore Exine DR. R. V. KSHIRSAGAR
  5. 5. Development of Male gametophyteMatureYoung Pollen grain Germ pore Intine Exine Generative cell Pollen tube Tube cell DR. R. V. KSHIRSAGAR
  6. 6. Development of Male gametophyteMature Pollen grain Germ pore Intine Exine Pollen tube Male gametes Tube nucleusA germinating pollen grain with two male gametes is called the Male gametophyte DR. R. V. KSHIRSAGAR
  7. 7. DR. R. V. KSHIRSAGAR
  8. 8. Development of female gametophyte in angiosperms DR. R. V. KSHIRSAGAR
  9. 9. Ovule Chalaza Integuments Nucellus Funicle Micropyle
  10. 10. Ovule Megaspores Megaspore mother cell (n) (2n) DR. R. V. KSHIRSAGAR
  11. 11. Ovule Functional megaspore 3 megaspores degenerate Megaspores (n) DR. R. V. KSHIRSAGAR
  12. 12. Ovule Functional megaspore DR. R. V. KSHIRSAGAR
  13. 13. Ovule Functional megaspore Female gametophyte OR Embryo sac
  14. 14. Ovule Antipodals Female gametophyte OR Secondary nucleus Embryo sac Synergids Egg apparatus Egg DR. R. V. KSHIRSAGAR
  15. 15. DR. R. V. KSHIRSAGAR
  16. 16. Double Fertilization and Triple Fusion in Angiosperms DR. R. V. KSHIRSAGAR
  17. 17. Double Fertilization and Triple Fusion in Angiosperms DR. R. V. KSHIRSAGAR
  18. 18. Double Fertilization and Triple Fusion in Angiosperms DR. R. V. KSHIRSAGAR
  19. 19. Double fertilization in Angiosperms PollinationStigma Style DR. R. V. KSHIRSAGAR
  20. 20. Double fertilization in AngiospermsPollen grain germinates on the stigmaStigma Style
  21. 21. Double fertilization in AngiospermsPollen grain germinates on the stigmaStigma Generative cell Pollen tube Tube nucleus Style DR. R. V. KSHIRSAGAR
  22. 22. Double fertilization in Angiosperms Male gametophytePollen grain germinates on the stigmaStigma Pollen tube Male gametes Tube nucleus Style DR. R. V. KSHIRSAGAR
  23. 23. Double fertilization in Angiosperms Male gametophyte Siphonogamy & PorogamyStigma Pollen Style tube Male gametes Tube nucleus Style Ovary Embryo sac DR. R. V. KSHIRSAGAR
  24. 24. Double fertilization in Angiosperms Male gametophyte Double fertilization and Siphonogamy & Porogamy Triple fusionStigma Pollen Style tube Male gametes Tube nucleus Style Ovary Embryo sac DR. R. V. KSHIRSAGAR
  25. 25. Double fertilization in Angiosperms Male gametophyte Double fertilization and Siphonogamy & Porogamy Triple fusionStigma Pollen Style tube Male gametes Tube nucleus Style Ovary Embryo sac
  26. 26. Double fertilization in Angiosperms Male gametophyte Double fertilization and Siphonogamy & Porogamy Triple fusionStigma Pollen Style tube Male gametes Tube nucleus Style Ovary Embryo sac

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