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ETAMINES & PISTIL

ETAMINES & PISTIL. ETAMINE (4). PISTIL. 3. Stigmate. 5. Anthère. 2. Style. 4. Filet. 1. Ovaire. Fleur d’arabidopsis thaliana (f. des crucifères ou brassicacées). anthère. filet. 3 stades de l’évolution d’une étamine de Berberis

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ETAMINES & PISTIL

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  1. ETAMINES & PISTIL ETAMINE (4) PISTIL 3. Stigmate 5. Anthère 2. Style 4. Filet 1. Ovaire

  2. Fleur d’arabidopsis thaliana (f. des crucifères ou brassicacées)

  3. anthère filet

  4. 3 stades de l’évolution d’une étamine de Berberis 1.Avant - 2. Pendant - 3. après ouverture = déhiscence des anthères http://www.biosci.utexas.edu/prc/DigFlora/BERB/stamen-morph.html

  5. Etape 1 : massif sporogène

  6. Déroulement de la méiose.

  7. Fin de méiose : tétraspores

  8. De la cellule mère de spore aux tétraspores

  9. Grains de pollen

  10. Ligne de déhiscence

  11. Pollen de saule Pollen d’Ipomée Pollen de marguerite

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