Diatoms Bio1 Camia (7,14,27)

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Diatoms Bio1 Camia (7,14,27)

  1. 1. DIATOMS
  2. 2. CHARACTERISTICS INTRODUCING ME…
  3. 3. Characteristic # 1 Diatoms are… the most abundant species in AQUATIC/ moist ecosystemshttp://www.jm-derochette.be/images/Diatoms/Diatoms_1.jpg
  4. 4. Characteristic # 2 Diatoms are… Azpeitia tabularis Important: Photosynthetic • Fucoxanthin autotrophshttp://www.sciencephoto.com/media/16036/enlarge,http://berryberryeasy.com/wp-content/uploads/2011/06/Photoautotrophs.jpg
  5. 5. Characteristic # 3 Diatoms are… Psammodictyon panduriforme UNICELLULAR PROTISTS/ alga/ phytoplanktonhttp://1.bp.blogspot.com/_C97NrIblNPQ/TTkPj0DIgZI/AAAAAAAAB38/QYLupyEthaw/s640/Diatom007.jpg,http://www.cartage.org.lb/en/themes/sciences/botanicalsciences/majordivisions/kingdomprotista/Protists/98258d.jpg
  6. 6. Characteristic # 4 Diatoms are… Triceratium sp. Biddulphia tridens The most beautiful creatures on earthhttp://www.sciencephoto.com/image/15909/350wm/B3050211-Diatom_alga,_SEM-SPL.jpg,http://cdn.indulgy.com/78/b3/Q8/210684088788027965687KsAPSc.jpg
  7. 7. STRUCTURAL CHARACTERISTICSTHAT’S WHAT MAKES THEM BEAUTIFUL!
  8. 8. Structural Characteristic # 1 Diatoms have… Functions: • Filtration/ Disinfection • Industry (eg. toothpastes, Epitheca soap) • Gives them shape (boat- like, rod-like, disk-like, Hypotheca triangle-like) • Gives them color Stichodiscus sp. Glass-like Cell walls(Frustule)with silica (siO2)http://www.sciencephoto.com/image/15918/530wm/B3050220-Diatom_alga,_SEM-SPL.jpg
  9. 9. Structural Characteristic # 1http://www.ucl.ac.uk/GeolSci/micropal/images/diat/diadiag01.gif
  10. 10. Structural Characteristic # 2 Diatoms have… Functions: • Photosynthesis • Primary Food Source • Vitamin D Source Chlorophyll-like plastids inside their cellshttp://www.chm.bris.ac.uk/motm/chlorophyll/chphyll.gif
  11. 11. Structural Characteristic # 3Diatoms have…Functions:• Oil production • Floating • Oil Deposits under the ocean fuel Oil drops made of • Storage of chemical energy from photosynthesis sugar & starch and• Nitrogen production volutin inside their cells
  12. 12. Structural Characteristic # 4 Diatoms have… Functions: • Oxygen and Nitrogen Distribution • Exchange of materials Pores with patterns on their frustuleshttp://1.bp.blogspot.com/_C97NrIblNPQ/TTkbPZID0nI/AAAAAAAAB4s/cyjz8FLyF_g/s640/rad_diatoms.jpg
  13. 13. Structural Characteristic # 4 Diatoms have… Effects: • Immobility NO cilia and flagella Aulacodiscus oregonushttp://www.sciencephoto.com/image/15915/530wm/B3050217-Diatom_alga,_SEM-SPL.jpg
  14. 14. Structural Characteristic # 5 Diatoms have… Nitzschia reinholdii Different sizes Types: Actinocylcus sp. • Centric and shapes • Pennatehttp://2.bp.blogspot.com/_C97NrIblNPQ/TTkiNLuvrEI/AAAAAAAAB5c/9KwK--vMrG8/s400/Diatom-2.jpg, http://www.sciencephoto.com/image/15921/530wm/B3050223-
  15. 15. HABITATSOMEWHERE ONLY THEY KNOW
  16. 16. Habitats Diatoms live in…http://www.allabouthappylife.com/wallpaper/widescreen_wallpapers/blue_water/blue_ocean-dsc05506.jpg, https://cmsdata.iucn.org/img/freshwater_6352.jpg
  17. 17. Habitats Habitats Diatoms live in… NO cilia and flagellahttp://www.scienceclarified.com/images/uesc_04_img0211.jpg
  18. 18. Habitatshttp://cornellbiochem.wikispaces.com/file/view/Picture_1.png/139679067/301x313/Picture_1.png
  19. 19. NUTRITIONMAKULAY ANG BUHAY SA SINABAWANG GULAY!
  20. 20. Nutrition Diatoms are…http://www.youtube.com/watch?v=__xEh1FrhLM,http://mrhartansscienceclass.pbworks.com/f/1328587105/10-20-PhotosynthesisRev-L.gif
  21. 21. REPRODUCTION I JUST HAD… (BLEEP)!
  22. 22. Asexual ReproductionThe shrinking phase1. Cell division takes place.2. The two valves (epitheca and hypotheca) separate.3. Each valve forms an epivalve of the daughter cell while hypovalves are secreted from the parent cells.4. This results to one cell being the same size as the parent cell while the other is smaller.5. This process continues until cells reach about 30%-40% of their original size.
  23. 23. Asexual Reproductionhttp://www.mbari.org/staff/conn/botany/phytoplankton/images/diatom_asexual.jpg
  24. 24. Sexual ReproductionThe growth phase1. Meiotic Cell division • Formation of eggs and monoflagellated sperms in the parent cell2. Fertilization • Union of egg and sperm produces auxospore3. Auxospore/Zygote Formation (Growth Phase) • Splitting of the parent cell while continuing to grow4. Test Secretion • End of growth phase; new parent cell develops
  25. 25. Sexual Reproductionhttp://rbg-web2.rbge.org.uk/algae/auxospores/auxospore_files/cycle_reproduction.jpg
  26. 26. Reproductive Cyclehttp://upload.wikimedia.org/wikipedia/commons/thumb/8/8a/Centric_diatom_life-cycle.jpg/580px-Centric_diatom_life-cycle.jpg
  27. 27. Resting Spores The inactivity phase Skeletonema marinoi When: Times of low nutrients and low sunlight What: Metabolically inactive spores How: Stored energy from photosynthetic products & thick and tough cell walls Where: At the bottom of the oceanhttp://images.sciencedaily.com/2011/03/110301111658-large.jpg
  28. 28. ECOLOGYI WAS BORN THIS WAY!
  29. 29. Ecological Role # 1 Primary producershttp://oceansjsu.com/images/exped_ecoystems/arctic_marine_food_web_90.jpg
  30. 30. Ecological Role # 2Important resource• 20%-25% of the world’s carbon fixation• 40% of the world’s oxygen (in the atmosphere)• Vitamin D• 23% of primary productivity in the world• Oil/Fuel• Silicon (SiO2)
  31. 31. Ecological Role # 3 Nutrient detector PLANKTON BLOOM – when there is an abundance of nutrients and excessive amount of sunlight in the oceanhttp://oceansjsu.com/images/exer8/plankt1.gif
  32. 32. EXAMPLESI’M NEVER CHANGING WHO I AM!
  33. 33. Example # 1 Triceratium moreirae Where: (mentioned) Southern Brazil Who: L.F. Fernandes and R.M. Sousa-Nosimann When: 2001 What: 47-61 μm; convex, tripolar valves; elevated with ocellus and rimoportulahttp://www.scielo.br/img/fbpe/rbbio/v61n1/a20fig6b.gif
  34. 34. Example # 2 Lithodesmium undulatum Where: warm, temperate seas Who: C.G. Ehrenberg When: 1839 What: 37-93 μm; marginal ridge with clear pattern of perforation; undulated sides; ‘wavy’http://www.sciencephoto.com/image/15919/530wm/B3050221-Diatom_alga,_SEM-SPL.jpg
  35. 35. Example # 3 Baceteriastrum delicatulum Where: (mentioned) Mexico, Lebanon, UK, Red Sea Who: Cleve When: 1897 What: 20-40 μm; circular valves with bristles; ‘spider-like’http://www.sciencephoto.com/image/15931/large/B3050233-Diatom_alga,_SEM-SPL.jpg
  36. 36. Sources Becker, J. (1996). Diatom Reproduction. Retrieved October 26, 2012, from Monterey Bay Aquarium Research Institute: http://www.mbari.org/staff/conn/botany/diatoms/john/basics/r epro.htm Biggs, A., Kapicka, C., & Lundgren, L. (1995). Biology: The Dynamics of Life. Ohio: Glencoe/McGraw-Hill. Braby, C. E. (2001). Diatoms. Retrieved October 27, 2012, from Monterey Bay Aquarium Research Institute: http://www.mbari.org/staff/conn/botany/phytoplankton/phytop lankton_diatoms.htm Braby, C. E. (2001). Diatoms Asexual Reproduction. Retrieved October 26, 2012, from Monterey Bay Aquarium Research Institute: http://www.mbari.org/staff/conn/botany/phytoplankton/phytop lankton_diatom_asexual.HTMhttp://www.mbari.org/staff/conn/botany/diatoms/jennifer/scan11.jpg
  37. 37. Sources Cuvelier, D. (2005, July 8). Bacteriastrum delicatulum Cleve, 189. Retrieved October 27, 2012, from World Register of Marine Species: http://www.marinespecies.org/aphia.php?p=taxdetails&id=1641 08 Essenfield, B., Gontang, C., & Moore, R. (1996). Biology, 2nd Edition. US: Addison-Wesley Publishing Company, Inc. Fernandes, L., & de Souza-Mosimann, R. (2005, May 22). Triceratium moreirae Sp Nov And Triceratium dubium Triceratiaceae Bacillariophy. Retrieved October 27, 2012, from Biblioteca: http://biblioteca.universia.net/html_bura/ficha/params/title/tri ceratium-moreirae-sp-nov-and-triceratium-dubium- triceratiaceae-bacillariophyta-from/id/272002.htmlhttp://www.mbari.org/staff/conn/botany/diatoms/jennifer/scan11.jpg
  38. 38. Sources Frazer, & Jennifer. (2010, March 28). Diatoms, or The Trouble With Life in Glass Houses. Retrieved October 26, 2012, from The Artful Amoeba: http://theartfulamoeba.com/2010/03/28/diatoms-or- the-trouble-with-life-in-glass-houses/ Guiry, M. (2004, October 11). Triceratium moreirae. Retrieved October 27, 2012, from Seaweed Africa: http://www.seaweedafrica.org/search/species/detail/?species_id =140330 Guiry, M., & Guiry, G. (2002, April 23). Species Detail. Retrieved October 27, 2012, from Algaebase: http://www.algaebase.org/search/species/detail/?species_id=38 373 Kaskel, A., Hummer, P. J., & Daniel, L. (1992). Biology: An Everyday Experience. USA: Merrill Publishing Company.http://www.mbari.org/staff/conn/botany/diatoms/jennifer/scan11.jpg
  39. 39. Sources Kuylenstierna, M., & Karlson, B. (2006, September 15). Lithodesmium undulatum. Retrieved October 27, 2012, from SMHI: http://www.smhi.se/oceanografi/oce_info_data/plankton_check list/diatoms/lithodesmium_undulatum.htm Life XMU. (n.d.). Centric & Pennate template. Retrieved October 27, 2012, from Life XMU: http://life.xmu.edu.cn/diatom/diatomphoto/Centric%20diatoms /htmldir/0000008e.htm Miller, K., & Levine, J. (2008). Biology: the Dragonfly Book. US: Prentice Hall. Oktar, A. (2011, April 1). The Microscopic living being that forms the oil fields: Diatom. Retrieved October 26, 2012, from Harun Yahya: http://harunyahya.com/en/works/40358/the-microscopic-living- being-thathttp://www.mbari.org/staff/conn/botany/diatoms/jennifer/scan11.jpg
  40. 40. Sources Pece. (2011, January 20). PSYCHEDELIC DIATOMS. Retrieved October 26, 2012, from Predict Weather @ Blogspot: http://predictweather.blogspot.com/2011/01/psychedelic- diatoms.html Prescott, L. M., Harley, J., & Klein, D. (2005). Microbiology. New York: McGraw-Hill. Science Photo Library. (n.d.). Jewels of the Sea. Retrieved October 26, 2012, from Science Photo Library: http://www.sciencephoto.com/set/1277/jewels-of-the-sea Seeberg-Elverfeldt, I. A. (2004). Laminated diatomaceous sediments of the Red Sea, their composition and significance as recorders of abrupt changes in productivity and circulation during the Late Quaternary. Bremen, Germany.http://www.mbari.org/staff/conn/botany/diatoms/jennifer/scan11.jpg
  41. 41. Sources Shin, J. (1999). Intro to Diatoms. Retrieved October 26, 2012, from Monterey Bay Aquarium Research Institute: http://www.mbari.org/staff/conn/botany/diatoms/jennifer/intro a.htm * Photo sources are inserted in the slides.http://www.mbari.org/staff/conn/botany/diatoms/jennifer/scan11.jpg

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