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DINOFLAGELLATES
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I) PHYLOGENY
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Apicomplexans Ciliates “ALVEOLATES” Dinoflagellates
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ALVEOLATES
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Alveoli “Amphiesma”
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PHYLOGENY MODEL I
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PHYLOGENY MODEL II
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II) NATURAL HISTORY
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7 13 HABITAT Karenia 37 Peridinium Ceratium SymbiodiniumPfiesteria
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16 17 ENDOSYMBIONTS: “ZOOXANTHELLAE” Symbiodinium
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NUTRITION Autotrophy Heterotrophy
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22 23 PISCIVORES Pfiesteria
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6 Red Tide Neurotoxic Shellfish Poisoning
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Projectiles
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15 BIOLUMINESCENCE
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Light Detection 40
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III) ARCHITECTURE
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2 “Shells”
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5 Desmokont Dinokont Dinoflagellate Growth Forms
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3 “Grooves”: Cingulum and Sulcus
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Flagellae: Transverse and Longitudinal
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Transverse Flagellum (Axoneme, Striated Filament = Centrin Filament) Fig. 7.8 in Lee 1999
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Longitudinal Flagellum (Axoneme, R-Fiber) Fig. 7.6 in Lee 1999
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Fig. 11-1 Graham and Wilcox 2000 Alveolus (Including Thecal Plates) Amphiesma
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4 Thecal Plates, Sutures
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Thecate vs. Non-Thecate Dinoflagellates
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Growth in Thecate Dinoflagellate s
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Fig. 7.10 in Lee 1999 Pusule Function: (?)
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Fig. 11-26 in Graham and Wilcox 2000Fig. 7.14 in Lee 1999 “Ejectiles”: Trichocysts
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“Ejectiles”: Mucocysts Fig. 11.15 in Graham et al. 2008
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“Ejectiles”: Nematocysts (~ “Cnidocysts”) Fig. 11.16 in Graham et al. 2009 49
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Eyespot: Unbound by Dedicated Membrane 42 Katodinium 43 Woloszynskia Figs. 11.35, 11.36 in Graham et al. 2008 (Cytoplasmic)(Within Plastid)
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Peridinium Eyespot: Bound by Three Membranes
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Fig. 11-20 in Graham and Wilcox 2000 40 Ocellus
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Ocellus (Hyalosome, Pigment Cup) Fig. 11.38 in Graham et al. 2008 (Hyalosome surrounded by Mitochondria, Fibers that Change shape of “Lens”)
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Bioluminescence Fig. 11.32 in Graham et al. 2008
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44 Bioluminescence
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Bioluminescence: Scintillons = Microsource Day Night Daily Migration of Scintillons Pyrocystis
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Daily Destruction/Nightly Synthesis Bioluminescence: Scintillons = Microsource Lingulodinium DayNight
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“Dinokaryon”: Nucleus Fig. 11.24, 11.26 in Graham et al. 2008
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“Dinokaryon”: Chromosomes Figs. 11.21 in Wilcox et al. 2008
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24 25 26 27 28 NUTRITION
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Heterotrophy: Phagocytosis / Engulfment 45 Noctiluna
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Figs. 11-29, 11-30 in Wilcox et al. 2008 Heterotrophy: Feeding Tubes (Phagopods)
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Heterotrophy: Feeding Tubes (Peduncle) Fig. 11.28 in Wilcox et al. 2008
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Heterotrophy: Feeding Veils (Pallium) Fig. 3.5 in Wilcox et al. 2008
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46 Autotrophy: Plastids, Pigments Fig. 11.34 in Wilcox et al. 200847 “Peridinin Plastid”
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Peridinin Chlorophyll aChlorophyll c Peridinin Plastids: Pigments
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Peridinin Plastids: Rubisco “Normal” Rubisco Rubisco in Peridinin Plastid
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Origin of Peridinin Plastid? Hypothesis 1Hypothesis 2 Rhodophyte (Red Alga) Stramenopile (Brown Alga)
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47 Other Stable and/or Temporary Plastids Cryptomonad Diatom Haptophyte Chlorophyte (Green Alga)
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Fig. 19. LM of Prorocentrum lima. The cell has a central pyrenoid with a starch sheath (the ring-like structure). © Mona Hoppenrath Fig. 20. TEM detail of the pyrenoid (py) surrounded by starch in Symbiodinium sp. © Gert Hansen Gert Hansen Fig. 21. TEM showing a cross section through a cell of Heterocapsa rotundata. The pyrenoid (py) is not traversed by thylacoids of the chloroplast and not surrounded by starch. © Gert Hansen Gert Hansen Pyrenoids, Storage Products
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Nutrition: Mixotrophy Particulate Carbon (POC) Dissolved Carbon (DOC) Heterotrophy Autotrophy Phagotrophy Feeding Tubes Osmotrophy Photosynthesis
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Asexual Reproduction Prorocentrum
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Fig. 8-2, 11-31 in Graham and Wilcox 2000 Mitosis/ Cytokinesis
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Mitosis, Cytokinesis Figs. 11-34, 11-36 in Graham and Wilcox 2000
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Fig. 11-40 in Graham and Wilcox 2000 Sexual Reproduction (Planozygote, Hypnozygote)
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Fig. 11-41 in Graham and Wilcox 2000 Importance of Cysts (Dormant Forms)
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A Typical (?) Dinoflagellate Life Cycle
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Adnatosphaeridium 29 30 Hystrichosphaeridium Fossil Dinoflagellates: Hystrichospheres Oldest: Triassic (200 MYA)
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Moldowan et al. 1996. Hemostratigraphic reconstruction of biofacies: Molecular evidence linking cyst-forming dinoflagellates with pre-Triassic ancestors. Geology: 159-162. New data from numerous detailed mass-spectrometric studies have detected triaromatic dinosteroids in Precambrian (600 MYA) to Cenozoic rock samples. Triaromatic dinosteroids are organic geochemicals derived from dinosterols, compounds known in modern organisms to be the nearly exclusive widely occurring products of dinoflagellates.
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Blooms
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Neurotoxins b) Brevetoxinsa) Saxitoxins Na + “Paralytic Shellfish Poisoning”
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c) Okadaic Acid Cytotoxins “Diarrhetic Shellfish Poisoning”
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Moral of the Story
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2 http://www.botany.hawaii.edu/BOT201/Algae/Dinoflagellate% 20panel%20Hokudai.gif 1 http://protist.i.hosei.ac.jp/pdb/Images/Mastigophora/Glenodinium/sp_04c.jpg 3 http://www.daviddarling.info/images/dinoflagellate.gif 4 http://www.aad.gov.au/Asset/em_unit/images/dino1.jpg 5 http://www.nmnh.si.edu/highlight/sem/highlight/dinos/images/fig_a_bbig.jpg 6 http://www.lifeinfreshwater.org.uk/Resource%20Images/habitat/ Red%20Tide.jpg 7 http://www.silvercity.org/Page_1/lake_roberts.jpg 8 http://www.preisvergleich.org/pimages/SKULL-CROSSBONES-2_88__ D-828.265_40.jpg
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9 http://upload.wikimedia.org/wikipedia/commons/d/db/Liver_superior.jpg 11 http://cache.eb.com/eb/image?id=21135 10 http://upload.wikimedia.org/wikipedia/en/thumb/b/b2/ SynapseIllustration2.png/350px-SynapseIllustration2.png 12 http://www-plb.ucdavis.edu/images/courses/s00bis1c/Dinoflagellate.jpg 13 http://eric.boissard.free.fr/Pictures/oceanwaves.jpg 14 http://omp.gso.uri.edu/discovery/biota/Inverts/surfclm1.jpg 15http://pro.corbis.com/images/42-19878430.jpg?size=67&uid=%7 BAF833BF1-09C5-4340-8E21-5D1D9566349E%7D 16 http://www.bigelow.org/reefwatch2001/coral_reefs/images/ glossary/symbiotic.jpg
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18 http://www.sbg.ac.at/ipk/avstudio/pierofun/png/scans/zooxanth.jpg 17 http://www.epa.gov/bioindicators/images/coral/S_Bleaching.jpg 21 http://www.seaslugforum.net/images/zoox1e.jpg 20 http://www.underwater.com.au/content/6154/nudibranch.jpg 22 http://www.whoi.edu/redtide/foodweb/pfiesteriafishsores.jpg 23 http://www.hpl.umces.edu/faculty/roman/biweekly_pfiesteria_picture.JPG 24 http://encyclopedia.quickseek.com/images/Ceratium_hirundinella.jpg 25 http://abacus.bates.edu/people/orgs/running/RunningPhotos/sun-cartoon.gif 27 http://microscope.mbl.edu/baypaul/microscope/lucidkeys/ types_of_flagellates/images/tfp_chilomonas2_ugw.jpg 26 http://universe-review.ca/I10-23-chlorella.gif 28 http://micro.magnet.fsu.edu/primer/techniques/hoffmangallery/images/ diatoms.jpg
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29 http://www.phoenix.org.br/images/Dinoflagelado_ Adnatosphaeridium.gif 30http://www.kingston.ac.uk/geolsci/prg/images/photos/ hystrichosphaeridium.jpg 31 http://www.nap.edu/openbook/0309051274/html/images/img00037.jpg 32 http://staff.tuhsd.k12.az.us/tcochran/BioImages/ciliate.jpg 33 http://www.palaeos.com/Proterozoic/Images/RoperAcritarchs.jpg 34 http://etc.usf.edu/lit2go/contents/4100/4118/fig15.gif 35 http://www5.pbrc.hawaii.edu/allen/ch08/mimg/01a-pmen810227-11m.jpg 36 http://www.learner.org/jnorth/images/graphics/manatee/RedTide_Karenia.jpg 37http://silicasecchidisk.conncoll.edu/Pics/Other%20Algae/Other_jpegs/ Peridinium_Key268.jpg 38 http://cimt.ucsc.edu/images/HAB%20ID/dinoflagellate/Dinos.jpg
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39 http://www.aad.gov.au/asset/mme/movies/ProtozoanIngested.jpghttp://www.aad.gov.au/asset/mme/ 40 http://billeder-billedbasen.emu.dk/annotated/53/5B/9731.jpg 41 http://tolweb.org/Dinoflagellates/2445&usg=__crjTBEMxXApXU3vhttp://tolweb.org/Dinoflagellates/2445&usg=__crjTBEMxXApXU3v Hmpr1bD536TM=&h=250&w=471&sz=42&hl=en&start=2&um=1&tbnid= iApAqe-i_JHakM:&tbnh=68&tbnw=129&prev=/images%3Fq%3 Dtransverse%2Bflagellum%26hl%3Den%26sa%3DN%26um%3D1 42 http://www.fimr.fi/en/tietoa/algaline_seuranta/lajistoraportit/http://www.fimr.fi/en/tietoa/algaline_seuranta/lajistoraportit/ lajistoraporttiarkisto/2002/en_GB/804/_files/12076504320047742/ default/1_Gymnodinium_sp._1a40_41.6_x_59.2_um_fp06592002.jpg 43 http://www.fimr.fi/en/tietoa/algaline_seuranta/lajistoraportit/http://www.fimr.fi/en/tietoa/algaline_seuranta/lajistoraportit/ lajistoraporttiarkisto/2005/en_GB/2528/_files/12076504320052782/default/cf._Scrippsiella_hangoei.jpg 44 http://www.bio.utk.edu/vonarnim/images/BRET.jpg 45 http://www.jochemnet.de/fiu/bot4404/noctiluca.jpg
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46 http://tolweb.org/tree/ToLimages/dinochlorotemtol.200a.jpg 47 http://www.pnas.org/content/99/18/11558/F1.large.jpg 48 http://tolweb.org/Dinoflagellates/2445 49 http://tolweb.org/Dinoflagellates/2445 50 http://www.int-res.com/uploads/pics/featureame45_big.jpg
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