L22%20lab%20lec%20pigments - Photosynthetic, plantlike...

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Unformatted text preview: Photosynthetic, plantlike protists; some are multicellular, large and structurally complex. InteMed Speaker Series InteMed Speaker Series When: 5 pm Tuesday, October 21st Where: Goldwin Smith 142 " % ) # * ! "+ " & ' ) ( # $ & ! " " www.ucmp.berkeley.edu/protista/rhodophyta.html Questions? Contact crp34@cornell.edu for more information Funded by the SAFC. Open to the entire Cornell community. Breast Cancer Awareness !# " & $ ' $ ! )$ & & * ( % $ % ) $ # + 2 " $ 5 , .0 /1 34 ) $ 6 78( 7.9 ) / 0 & & # $ %% & '( ( ' !" # Plant growth and development concepts & terms ABC model of flower organs annual growth ring alternate leaf pattern apical meristem Arabidospis thaliana axillary bud basal rossette cambium carpel cork cambium decussate leaf pattern dendrochronology dicot Fibonacci series flowers frost rings heartwood hydroponic internode lateral root leaf (blade, petiole) leaf primordia monocot node petal phloem (primary, secondary) phyllotaxis primary growth root root cap root hairs sapwood recondary growth sepal shoot spiral leaf pattern stele vascular cambium wood xylem (primary, secondary) zone of cell division Monday, 20 Oct. 2008 Guest: Dr. Bob Turgeon Room 302AB APPEL DINING HALL 5:45 PM Meeting place: West Entrance to Appel Center at 5:45pm Light • – – Chloroplast Reflected light • – – • • Absorbed light Transmitted light Fig. 10-11 e– Energy of electron Excited state Heat Photon Photon (fluorescence) Chlorophyll molecule Ground state (a) Excitation of isolated chlorophyll molecule (b) Fluorescence ! ! Polar vs. Nonpolar NASA " •% –' # $ # ) * & •( – • –! TECHNIQUE White light Refracting Chlorophyll Photoelectric prism solution tube 2 1 3 4 Galvanometer Slit moves to pass light of selected wavelength Green light The high transmittance (low absorption) reading indicates that chlorophyll absorbs very little green light. Blue light The low transmittance (high absorption) reading indicates that chlorophyll absorbs most blue light. ! # ' Toluene Aceton e Stationary Phase (silica gel) Thin Layer Chromatography (TLC) http://www.wooster.edu/chemistry/analytical/gc/default.html Diplomonads Excavata Parabasalids * b) c) * * Euglenozoans ¡ ¡ !+ ! -#! ! ! 1 1! 1! Dinoflagellates (, Apicomplexans Chromalveolata Brown algae ¡ ¡ ¡ Hint: remember that the silica gel is polar Alveolates Ciliates ) Diatoms Golden algae / ! /! /! /! /! / 1! Stramenopiles Oomycetes . Chlorarachniophytes Rhizaria Forams Radiolarians * / / 1! /! /! /1 /! Red algae Chlorophytes Archaeplastida Green algae Charophyceans Land plants 0 Slime molds Gymnamoebas Bottom, this side was placed in solvent Amoebozoans Entamoebas / Unikonta Nucleariids 2 Fungi Opisthokonts Choanoflagellates Animals ! 3 ! 2 2 Modern Cyanobacteria Modern red algae e.g. Porphyra e.g. Peridinium Chromalveolata Secondary endosymbiosis e.g. Spirulina Dinoflagellates ! # + // / Cyanobacterium Ancient Red alga Diatoms Golden Algae Brown Algae e.g. Ascophyllum Primary endosymbiosis Heterotrophic Archaeplastida eukaryote Ancestor Secondary endosymbiosis Green alga Secondary endosymbiosis Euglenids e.g. Euglena 4 Modern green algae e.g. Ulva Plants e.g. Spinacea Wikimedia – Joan Simon Excavata Chromalveolata Rhizaria Chlorarachniophytes Archaeplastida Unikonta Charophyceans Chlorophytes Radiolarians Land plants Entamoebas Nucleariids Choanoflagellates Dinoflagellates Apicomplexans Gymnamoebas Euglenozoans Diplomonads Parabasalids Golden algae Brown algae Slime molds Oomycetes Red algae Diatoms Ciliates Forams Fungi Animals • 4 • • ) / * / 4 / Green algae Secondary Secondary Alveolates Stramenopiles Amoebozoans Opisthokonts Secondary Primary While the presence of chloroplasts is not a phylogenetically informative trait, certain algal groups do have distinctive pigments. ! 5 Chlorophyll b lost Photos from wikimedia: Fall Colors by Sujitkumar, USDA pumpkin pie Grand Prismatic Spring Yellowstone by Mila Zinkova Phycobilins lost 5 6 by Rasbak (wikimedia) 7 5 0 / Plants Photos by Amanda, Jonathan & Hannes Grobe # 7 ! ! 6 ! 6 8 9 +, • – – • – – $ 6 • • ...
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This note was uploaded on 10/13/2009 for the course BIO G 1101 at Cornell University (Engineering School).

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