debunking biology: introduction to kingdom protistaudls/slides/protists.pdf · debunking biology:...
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Debunking Biology:Introduction to Kingdom Protista
UDLS 30th January, 2009
Yana Eglit
Department of Botany
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A biodiversity chart
Purvis & Hector 2000 Nature; based on Hawksworth & Kalin-Arroyo in Global Biodiversity Assessment
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Ciccarelli et al. 2006, Science
Life is dominated by bacteria!
Us!
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“Oooh, that’s us!”
NucleiCytoskeletonEndomembrane sys.Phagocytosis
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Let’s take a look at some eukaryotes:
(1; ToLWeb)(2; ToLWeb) (3; Wikipedia) (4)
(1; ToLWeb)(2; ToLWeb) (3; Wikipedia) (4)
(Bria
n Le
ande
r, To
LWeb
)
(Mon
a H
oppe
nrat
h, T
oLW
eb)
(Ral
f Mei
ster
feld
, ToL
Web
)
(http://helicosporidia.ifas.ufl.edu/) Nicole King Lab, Berkeley
(Brian Leander)(Robinson 2006 PLoS Biol.)
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http://biology.unm.edu/ccouncil/Biology_203/Im
ages/Protists/radiolarians.jpg
It’s hard to stop…!
http://www.esf.edu/antarctica/images/phaeodarian8-2.jpg
http://www.orgs-evolution-knowledge.net/Index/Tapestry/Kelp.jpg
(Góm
ez 2
008
Eur.
J. P
rot.)
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Keeling et al. 2005 Trends Ecol Evol
We’re so important!
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Speaking of phylogeny…
Bacteria
Jellyfish
Enlightenment!!1!
Amoebae
Fish
Amphibians
Monkeys
Humans
Can’t draw in Powerpoint; Therefore, animals QED
Enlightenment!!1!
Bacteria
Toxoplasma
Gregarina
Colpodella
Ciliates
Cryptomonads
AmoebaeRed algal plastid
Time Species-specific timezones!?
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Closer to truth:Bacteria Amoebae Jellyfish Fish Amphibians Monkeys Humans
Time
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More like this:Bacteria
Amoebae
Jellyfish
Fish AmphibiansMonkeys
Humans
(Not to scale!)# of generations
Longer generations Evolutionary retardation
Enlightenment!!1!
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Evolution ≠ Increase in complexity!
© Pokemon
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H.sapiens, etc
www.paleos.orgNicole King Lab, Berkeley
Multicellularity
Loss of multicellularity
Example: Myxosporidia
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Typical Cell
(http://images.encarta.msn.com/xrefmedia/aencmed/targets/illus/ilt/T059293A.gif)
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Cell shape diversity (ciliates)
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Chitchai Chantangsi
http://oceanexplorer.noaa.gov/explorations/05lostcity/logs/july27/media/xeno2.htmlhttp://www.aphotofungi.com/SlimeMould-Physarum%20polycephalum23-03-07.jpg
http://dictybase.org/Multimedia/LarryBlanton/dev.html
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bacterium Hungry eukaryoteNNN
Ngenes
proteins
1. Host eats organism2. Organism can replicate
inside host3. Genes transferred to
host4. Product of those genes
targeted back to endosymbiont
5. Organelle!
Example: Mitochondria (simplified)
This can happen recursively: Secondary and Tertiary endosymbiosis…
Endosymbiosis
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Keeling 2004 Am J Bot
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“Archaezoa”
http://www.cob.lu.se/microsporidia/8nosema_2.jpg Keeling & Fast 2002 Annu Rev Microbiol
Erlandsen et al. 2004 J Euk Microbiol
Kevin Carpenter, ToLWeb
http://www.microscopy-uk.org.uk/mag/imgsep01/pelomyxa.jpg
http://ww
w.m
icroscopy-uk.org.uk/mag/im
gmar03/Trichonym
pha755.jpg
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Archaezoa hypothesis
Embley & Martin 2006 NatureNo primarily amitochondriateEukaryote has been found yet!
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Keeling et al. 2005 Trends Ecol Evol
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Seeing plastids
Greuet, C. 1987: Complex organelles. In: Taylor, FJR(ed.): The biology of dinoflagellates. BlackwellScientific Publications
(Amos 2000 Nature Cell Biol)
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So tiny, they can be seen from space…
http://www.geo.uni-bremen.de/cocco/components/com_ponygallery/img_pictures/originals/20070502_1195996855_d_tubifera.jpg
http://www.geo.uni-bremen.de/cocco/index.php?option=com_content&task=view&id=31&Itemid=47&lang=en
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(2; Chitchai)
(2)
Brian Leander
(1)(1)
Agatha et al. 2004Europ J Prot
(3)
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Leander & Farmer 2001 J PhycolBrian Leander
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Phytophthora – potato blight
(Grenville-Briggs et al. 2008, Plant Cell)
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Toxoplasma
Boothroyd & Dubremetz 2008 Nature Rev Microbiol
Ajioka et al. 2001 Exp Rev Mol Med
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Plasmodium – Malaria
http://upload.wikimedia.org/wikipedia/commons/f/f1/Malaria.jpg
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Trypanosomes – African Sleeping Sickness, Nagana
Michael Duszenko, University of Tübingen, Germany
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Protists and Creation Science
Upon rigorous investigation inspired by Gillen 2008, Answers Research Journal …
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This is real. I wish I were joking…
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• The Facts:– God ‘rests’ on the 7th day. No further info
provided. (God 4004 BCE, Bible)– One must be on crack to design some of those
protists!
• The Revelation:– Protista was created on Day 7 of Creation.Psychoactive substance use strongly suspected.
Protists and Creation Science
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Thank you!
O. Roger Andersonmicro*scope
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Supplimentary Data
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Imanian, Carpenter, Keeling 2007 J Euk Microbiol
N N
An example of tertiary endosymbiosis:Kryptoperidinium
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HostNucleus
EndosymbiontNucleus
Plastids
Eyespot
Mitochondria
(Behzad Imanian;Slide shamelessly stolen fromJuan Saldarriaga)
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References• (1) http://www.tolweb.org/onlinecontributors/app?
page=ViewImageData&service=external&sp=34755&state:ImageGallery=ZH4sIAAAAAAAAAFvzloG1nJeBgYGJgYEtLz8l1TOluIiBLyuxLFEvJzEvXc8nPy%2FduvvJhDP9yveZGBi9GFjLEnNKUyuKGAQQivxKc5NSi9rWTJXlnvKgG2hURQEDGHDOLRdgYODNTU3JTHTOSSwu9swrAZoviNAKFEhNTy0SerRgyffGdgugFZ4wKwoZ6hgYQaYAAPQ8lKilAAAA
• (2) http://www.tolweb.org/onlinecontributors/app?page=ViewImageData&service=external&sp=35542&state:ImageGallery=ZH4sIAAAAAAAAAFvzloG1nJeBgYGJgYEtLz8l1TOluIiBLyuxLFEvJzEvXc8nPy%2FduvvJhDP9yveZGBi9GFjLEnNKUyuKGAQQivxKc5NSi9rWTJXlnvKgG2hURQEDGHDOLhdgYODNTU3JTHTOSSwu9swrAZoviNAKFEhNTy0SerRgyffGdgugFZ4wKwoZ6hgYQaYAAD8%2FGDulAAAA
• (3) http://en.wikipedia.org/wiki/File:Phallus_impudicus7_Stinkhorn.jpg• (4) www.tfts.org/pseudobombax_ellipticum.htm