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HAPTOPHYTES

HAPTOPHYTES. 21. **Haptophyte Significance. 6. Oceans = 2/3 of Earth’s Surface. Carbonate Deposits = ½ of Ocean Floor. Haptophytes Contribute ¼ of Carbonate on Ocean Floor. 7. Haptophyte Significance. 30. Haptophytes Contribute at least 25% of Vertical Carbon Transport

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HAPTOPHYTES

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  1. HAPTOPHYTES 21

  2. **Haptophyte Significance 6 Oceans = 2/3 of Earth’s Surface Carbonate Deposits = ½ of Ocean Floor Haptophytes Contribute ¼ of Carbonate on Ocean Floor 7

  3. Haptophyte Significance 30 Haptophytes Contribute at least 25% of Vertical Carbon Transport to Ocean Floor (Graham et al. 2008)

  4. Flagella, Haptonema 14 15

  5. Haptonema Function • Obstacle Avoidance 2) Adhesion 3) Phagocytosis 8

  6. External Covering 2) Organic Scales 1) Naked 24 1

  7. Organic Scale Formation Figs. 10.7, 10.8 in Graham et al. 2008

  8. External Covering 3) Coccoliths

  9. Coccosphere

  10. Haptophyte Forms A) Non-Coccolithiphore B) Coccolithiphore

  11. Coccoliths Heterococcoliths Holococcoliths

  12. Holococcolith Formation

  13. Holococcolith Formation Figs. 10.9 in Graham et al. 2008

  14. Heterococcolith Formation Fig. 10.10 in Graham et al. 2008

  15. Coccolith Function • Focusing Light • Limit Access by • Bacteria, Viruses • 3) Retard Herbivory • 4) Buoyancy Regulation Fig. 10.13 in Graham et al. 2008

  16. Coccolith Formation and Photosynthesis HCO3- + Ca2+ CaCO3 + CO2 + H2O

  17. Chloroplast Structure • Four membranes • Chl a, c, β-Carotene, • Fucoxanthin Fig. 10.14 in Graham et al. 2008

  18. Putative Chloroplast Origin in Haptophytes

  19. Cell Division (Mitosis, Cytokinesis) Fig. 10.15 in Graham et al. 2008

  20. Sexual Life Cycle Heterococcoliths (2n) Holococcoliths (n)

  21. Asexual Reproduction Prymnesium Species A (n) Prymnesium Species B (2n) Holococcoliths Heterococcoliths

  22. Haptophyte Significance 28 Isochrysis Pavlova lutheri 29

  23. Haptophyte Significance 10 Phaeocystis Colony 11 Phaeocystis is a Haptophyte. It forms a gelatinous colony. It is believed that their decaying remains are the cause of the foam on the sea shore.

  24. Haptophyte Significance 27 Chrysochromulina 26 Prymnesium parvum

  25. Haptophyte Significance Phaeocystis Colony DMS (Volatile) Production Emiliania 22 Fig. 10.16 in Graham et al. 2008

  26. Haptophyte Significance 30 Haptophytes Contribute at least 25% of Vertical Carbon Transport to Ocean Floor (Graham et al. 2008)

  27. **Haptophyte Significance 6 Oceans = 2/3 of Earth’s Surface Carbonate Deposits = ½ of Ocean Floor Haptophytes Contribute ¼ of Carbonate on Ocean Floor 7

  28. Haptophyte Significance 12 17 Isle of Wight Chalk Cliffs 13

  29. Putative Phylogeny

  30. 1 http://img.search.com/thumb/d/d1/Emiliania_huxleyi_3.jpg/ 250px-Emiliania_huxleyi_3.jpg 2 http://www.biol.tsukuba.ac.jp/~inouye/ino/h/phaeocystis.gif 3 http://www.b-s-p.org/bspnews/981/images/981-05a.png 4 http://www.microscopy-uk.org.uk/micropolitan/marine/algae/phaeocystis450.jpg 5 http://www.ucmp.berkeley.edu/chromista/coccolith.gif 6 http://hjs.geol.uib.no/marinemicro/maps/0-0-2-map- sediments-facies.jpg 7 Graham and Wilcox 2000 8 Fig. 10-3 in Graham and Wilcox 2000

  31. 9 http://www.metoffice.gov.uk/research/hadleycentre/models/carbon_cycle/ CDIAC_glob_c_cycle.gif 10 http://www.microscopy-uk.org.uk/micropolitan/marine/algae/ phaeocystis450.jpg 11 http://www.biol.tsukuba.ac.jp/~inouye/ino/h/phaeocystis.gif 12 https://www.biomedia.cellbiology.ubc.ca/cellbiol/media/images/ lrg625/1130048723_Akaroa_Bay-NZ-coccolith_of_Gephyrocapsa_oceanica- Apr-05_m05-2.jpg 13 Fig. 10-7 in Wilcox and Graham 2000 14 http://www.jochemnet.de/fiu/bot4404/Hapto_haptonema.jpg 15 http://www.jochemnet.de/fiu/hapto1.gif 16 Fig. 10-11 in Wilcox and Graham 2000 17 http://www-biol.paisley.ac.uk/bioref/Habitats/Needles_DSC_3524.jpg

  32. 18 http://web.mit.edu/esgbio/www/lm/sugars/cellulose.GIF 19 http://www.nature.com/news/2001/010118/images/cellulose_200.jpg 20 http://www.2spi.com/catalog/analytical/images/3d/calcium% 20carbonate%20crystals.jpg 21 http://www.nhm.ac.uk/hosted_sites/ina/graphics/stampdetail.jpg 22 http://www-gte.larc.nasa.gov/img/able1.jpg 23 http://www.uth.tmc.edu/bmb/images/faculty-mary-marsh-fig2.jpg 24 http://www.uth.tmc.edu/bmb/images/faculty-mary-marsh-fig2.jpg 25 http://www.scielo.cl/fbpe/img/imar/v35n1/fig09-02.jpg 26 http://www.tpwd.state.tx.us/landwater/water/environconcerns/hab/ga/ images/p_parvumbuzan.jpg 27 http://www.jochemnet.de/fiu/bot4404/Hapto_Chrysochromulina2.gif 28 http://www.ag.auburn.edu/fish/image_gallery/data/media/32/oyster_food.jpg

  33. 29 http://www.lib.noaa.gov/korea/korean_aquaculture/algal.files/ microalgal002.gif 30 http://www.e3alive.org/wp-content/uploads/2008/07/carboncycle.png

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