Lect05S2011 - Origin of Origin Terrestrial Plants Plants...

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Origin of Terrestrial Plants Origin of Terrestrial Plants
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Are sister clades.
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Characteristics Common to Land Plants and Charophytes Characteristics Common to Land Plants and Charophytes Shared characteristics between charophycean algae and land plants, i.e. not found in other Chlorophytes and algae: Rosette Cellulose-Synthesizing Complexes : Microfibrils synthesized from rose shaped protein of plasma membrane
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Rosette Cellulose- Synthesizing Complexes Rosette Cellulose- Synthesizing Complexes Rosette cellulose- synthesizing complex
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Rosette Cellulose- Synthesizing Complexes Rosette Cellulose- Synthesizing Complexes Cell membrane Cell membrane Cellulose Cellulose microfibrils microfibrils Rosette cellulose- synthesizing complex
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Peroxisomes Peroxisomes Enzymes in peroxisomes transfer Hydrogen to Oxygen H 2 O 2 . With mitochondria and chloroplasts has role in photorespiration. Shared characteristics between charophycean algae and land plants, i.e. not found in other Chlorophytes and algae:
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Peroxisome Ultrastructure Peroxisome Ultrastructure
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Cell Plate Formation Cell Plate Formation Phragmoplast during mitosis.
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Characteristics of Land Plants and Charophytes Characteristics of Land Plants and Charophytes Ultrastructure indicates sperms homologous. Ultrastructure indicates chloroplast homologous. Shared characteristics between charophycean algae and land plants, i.e. not found in other Chlorophytes and algae:
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Derived Traits of Plants Derived Traits of Plants Derived traits = traits arising after diverging from algal ancestor: Alternation of generations : Sporic meiosis, with multicellular gametophyte and sporophyte Multicellular, dependent embryo. Placental transfer cells transfer nutrient from parent plant to embryo. Sterile cells! Spores with sporopollenin prevents desiccation in air dispersal.
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Derived Traits of Plants Derived Traits of Plants Derived traits = traits arising after diverging from algal ancestor: Mutlicellular gametangia : Archegonium : Female, where egg is borne. Sterile cells! Anteridium
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This note was uploaded on 08/09/2011 for the course BIOL 172 taught by Professor Huddleston,m during the Spring '08 term at University of Hawaii, Manoa.

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Lect05S2011 - Origin of Origin Terrestrial Plants Plants...

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