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Brown Algae Anatomy Revisited: Cortex and Medulla Figs. 17.15 in Lee 1999 Cortex Medulla.

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Presentation on theme: "Brown Algae Anatomy Revisited: Cortex and Medulla Figs. 17.15 in Lee 1999 Cortex Medulla."— Presentation transcript:

1 Brown Algae Anatomy Revisited: Cortex and Medulla Figs in Lee 1999 Cortex Medulla

2 1 2 Cell Wall

3 Commercial Use

4 Cell Wall Components I 4 Na + K+K+ Ca 2+ Mg 2+

5 3 Cell Wall Components II

6 Cell Wall Components III

7 Fig in Graham et al PLASTIDS

8 27 Chlorophyll a 6 B CaroteneViolaxanthin Fucoxanthin Pigments

9 Pigment Absorption Spectrum 7

10 Chloroplast Origin 34

11 Storage Product 3 1 :

12 11 1 : (Chrysolaminarin)

13 8 Pyrenoid

14 Cell Division

15 Semi-Closed Mitosis

16 Cytokinesis

17 Fig in Graham et al Isomorphic Alternation of Generations (Ectocarpus) Ectocarpus Sporophyte (2n) Gametophyte (n) Spore (n) Gametes (n) Zygote (2n)

18 11 12 Sporophyte Gametophyte Pleurilocular Gametangium Unilocular Sporangium

19 Female Gametangium Male Gametangium Pheremone (= Sex Hormone) (e.g., Ectocarpene)

20 Ectocarpus Mixture of Sexual, Asexual Reproduction: Pleurilocular Sporangia

21 Sporophyte (2n) Gametophyte (n) Ectocarpus Summary

22 13 Heteromorphic Alternation of Generations (Laminaria) 14 Sporophyte (2n) Gametophyte (n) Gametes (n) Zygote (2n)

23 Unilocular Sporangium Gametangia Sporophyte (2n) Gametophyte (n)

24 15 Fucus (Air Bladders, Receptacles)

25 Diplontic (2n) Gametes (n) Zygote (2n)

26 Conceptacles, Ostiole, Female Gametangia, Male Gametangia Male GametangiaFemale Gametangia Gametes (n)

27 Sporophyte (2n) Gametophyte (n) X

28 18 Stramenopiles: Phaeophyceae 19

29 1 2 web_000.jpg chlorophyll-a_01.gif

30 closeup.jpg 16 Fucus_Images/Conceptacle_receptacle_MC.low.jpg 17 Protista/images/Oogonia.jpg 18 Nupyxdt73eX6CpKCTnrU3WH5-0i1SFxfWQwdcA4KgW2-8xnnpLsU9hHP wX*jz/kelpfish.jpg


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