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Domain Eukarya Kingdom Plantae

Domain Eukarya Kingdom Plantae

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Domain Eukarya Kingdom Plantae

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  1. What makes a plant a plant? Cell wall primarily of cellulose Starch as primary photosynthetic storage product Multicellular with complex specialized tissue development Chl a, Chl b, xanthophylls, carotenoids Domain Eukarya Kingdom Plantae

  2. Radiates from simple to more complex – in both form and environments Seedless non-vascular Seedless vascular Seed producing, vascular Seed producing, vascular, fruits/flowers Plant evolution simplified

  3. Semi-aquatic to more terrestrial • Ancestral “plants”  transitions to primitive plants • Requirements met from aquatic environment • Gas, water, light, buoyancy support • Complex plants • Adapt to two environments • Shoot system • Root system

  4. Plants: categorized by structures and lifecycles…Alternation of Generations

  5. Moss sporophytes and gametophytes sporophytes gametophytes

  6. Moss antheridia Sperm

  7. Moss antheridia w/sperm

  8. Moss archegonia ovum

  9. Moss archegonia 2 ova

  10. Moss archegonia 3

  11. Moss sporophytes

  12. Moss capsule (sporophyte) Operculum Spores

  13. Liverwort

  14. Liverwort antheridiophore

  15. Liverwort antheridiophore 2

  16. Liverwort antheridia Antheridiophore sperm

  17. Liverwort antheridia w/sperm

  18. Liverwort archegoniophore

  19. Liverwort archegonia w/ova Archegoniophore ovum Archegonium

  20. Liverwort sporophyte Archegoniophore

  21. Liverwort sporophyte 2 spores

  22. Liverwort gemmae cups(cupules)

  23. Gemmae cups (cupules) Gemma cup (cupule) gemma

  24. Hornwort sporophytes gametophyte

  25. Hornwort 2 “Horn –like” Sporophyte gametophyte

  26. Tracheophytes ancestral e.g. Rhyniophyta • Ferns and “fern allies” • Seedless • Vascular plants • Xylem composed of Tracheids – tapered porous cells • capillary action moderately efficient • Sporophyte dominant

  27. Psilophyta

  28. Psilophyta gametophyte

  29. Lycophyta strobila leaves

  30. Lycophyta strobilus microspores sporophylls megaspores

  31. Lycophyta strobilus 2 Megaspores megsporangium Microspores

  32. Lycophyta gametophyte

  33. Sphenophyta strobilus

  34. Sphenophyta strobilus

  35. Sphenophyta gametophyte

  36. Pterophyta sporophyte

  37. Pterophyta sporophyte2

  38. Fern frond w/ sori

  39. Sori on fern leaflets

  40. Sorus

  41. Fern sporangia Spores Sporangium Annulus

  42. Fern sporangia and spores

  43. Fern gametophyte

  44. Fern gametophyte

  45. Gametophyte w/antheridia Gametophyte (prothallus) Antheridia sperm

  46. Antheridia w/sperm Antheridium sperm

  47. Gametophyte w/archegonia Archegonia

  48. Gametophyte w/archegonia 2 Archegonia

  49. Archegonia on surface of prothallus

  50. Fern sporangium and prothallus Sporophyte Gametophyte (prothallus)