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Dr.Ravindra kshirsagar is associate Professor in Zoology,Modern College Pune
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Reproduction in AngiospermsReproduction in Angiosperms
Development of Male Gametophyte, Development of Male Gametophyte,
Sub Topics:Sub Topics:
Class : XIIClass : XII
Development of Female Gametophyte andDevelopment of Female Gametophyte and
Double fertilization.Double fertilization.
Power Point PresentationPower Point Presentation
Topic :Topic :
R. V. MORE Kshirsagar DR. R. V. KSHIRSAGAR PROF.RAMKRISHNA MORE COLLEGE AKURDI PUNE 44
Development of Male gametophyte
Pollen mother cell(2n)
Meiosis I Meiosis II
(n)
(n)
Pollen Tetrad
R. V. MORE Kshirsagar DR. R. V. KSHIRSAGAR PROF.RAMKRISHNA MORE COLLEGE AKURDI PUNE 44
Development of Male gametophyte
Pollen mother cell(2n)
Meiosis I Meiosis II
(n)
(n)
Pollen Tetrad
R. V. MORE Kshirsagar DR. R. V. KSHIRSAGAR PROF.RAMKRISHNA MORE COLLEGE AKURDI PUNE 44
Development of Male gametophyte
Pollen grain
Exine
Germ pore
R. V. MORE Kshirsagar DR. R. V. KSHIRSAGAR PROF.RAMKRISHNA MORE COLLEGE AKURDI PUNE 44
Development of Male gametophyte
Pollen grain
Exine
Germ pore
Generative cell
Tube cell
Pollen tube
YoungMature
Intine
R. V. MORE Kshirsagar DR. R. V. KSHIRSAGAR PROF.RAMKRISHNA MORE COLLEGE AKURDI PUNE 44
Development of Male gametophyte
Pollen grain
Exine
Germ pore
Pollen tube
Mature
Male gametes
A germinating pollen grain with two male gametes is called the Male gametophyte
Tube nucleus
Intine
R. V. MORE Kshirsagar DR. R. V. KSHIRSAGAR PROF.RAMKRISHNA MORE COLLEGE AKURDI PUNE 44
R. V. MORE Kshirsagar DR. R. V. KSHIRSAGAR PROF.RAMKRISHNA MORE COLLEGE AKURDI PUNE 44
Development of female gametophyte in angiosperms
R. V. MORE Kshirsagar DR. R. V. KSHIRSAGAR PROF.RAMKRISHNA MORE COLLEGE AKURDI PUNE 44
Ovule
Micropyle
Integuments
Funicle
Nucellus
Chalaza
Megaspores(n)
Megaspore mother cell(2n)
Ovule
R. V. MORE Kshirsagar DR. R. V. KSHIRSAGAR PROF.RAMKRISHNA MORE COLLEGE AKURDI PUNE 44
Megaspores(n)
Functional megaspore
3 megaspores degenerate
Ovule
R. V. MORE Kshirsagar DR. R. V. KSHIRSAGAR PROF.RAMKRISHNA MORE COLLEGE AKURDI PUNE 44
Functional megaspore
Ovule
R. V. MORE Kshirsagar DR. R. V. KSHIRSAGAR PROF.RAMKRISHNA MORE COLLEGE AKURDI PUNE 44
Ovule
Functional megasporeFemale gametophyte
OREmbryo sac
Ovule
Female gametophyte
OREmbryo sac
Antipodals
Egg
Synergids
Secondary nucleus
Egg apparatus
R. V. MORE Kshirsagar DR. R. V. KSHIRSAGAR PROF.RAMKRISHNA MORE COLLEGE AKURDI PUNE 44
R. V. MORE Kshirsagar DR. R. V. KSHIRSAGAR PROF.RAMKRISHNA MORE COLLEGE AKURDI PUNE 44
Double Fertilization and Triple Fusion in
Angiosperms
R. V. MORE Kshirsagar DR. R. V. KSHIRSAGAR PROF.RAMKRISHNA MORE COLLEGE AKURDI PUNE 44
Double Fertilization and Triple Fusion in
Angiosperms
R. V. MORE Kshirsagar DR. R. V. KSHIRSAGAR PROF.RAMKRISHNA MORE COLLEGE AKURDI PUNE 44
Double Fertilization and Triple Fusion in
Angiosperms
R. V. MORE Kshirsagar DR. R. V. KSHIRSAGAR PROF.RAMKRISHNA MORE COLLEGE AKURDI PUNE 44
Pollination
Stigma
Style
Double fertilization in Angiosperms
R. V. MORE Kshirsagar DR. R. V. KSHIRSAGAR PROF.RAMKRISHNA MORE COLLEGE AKURDI PUNE 44
Stigma
Style
Pollen grain germinates on the stigma
Double fertilization in Angiosperms
Pollentube
StigmaGenerative cell
Tube nucleus
Style
Pollen grain germinates on the stigma
Double fertilization in Angiosperms
R. V. MORE Kshirsagar DR. R. V. KSHIRSAGAR PROF.RAMKRISHNA MORE COLLEGE AKURDI PUNE 44
Male gametophyte
Malegametes
Tube nucleus
Stigma
Style
Pollentube
Pollen grain germinates on the stigma
Double fertilization in Angiosperms
R. V. MORE Kshirsagar DR. R. V. KSHIRSAGAR PROF.RAMKRISHNA MORE COLLEGE AKURDI PUNE 44
Malegametes
Tube nucleus
Stigma
Style
Pollentube
Male gametophyte
Siphonogamy & Porogamy
Style
Ovary
Embryo sac
Double fertilization in Angiosperms
R. V. MORE Kshirsagar DR. R. V. KSHIRSAGAR PROF.RAMKRISHNA MORE COLLEGE AKURDI PUNE 44
Malegametes
Tube nucleus
Stigma
Style
Pollentube
Male gametophyte
Siphonogamy & Porogamy
Style
Ovary
Embryo sac
Double fertilization and
Triple fusion
Double fertilization in Angiosperms
R. V. MORE Kshirsagar DR. R. V. KSHIRSAGAR PROF.RAMKRISHNA MORE COLLEGE AKURDI PUNE 44
Malegametes
Tube nucleus
Stigma
Style
Pollentube
Male gametophyte
Siphonogamy & Porogamy
Style
Ovary
Embryo sac
Double fertilization and
Triple fusion
Double fertilization in Angiosperms
Malegametes
Tube nucleus
Stigma
Style
Pollentube
Male gametophyte
Siphonogamy & Porogamy
Style
Ovary
Embryo sac
Double fertilization and
Triple fusion
Double fertilization in Angiosperms
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