Mutualism - Ectomycorrhizae Very important in water uptake,...

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BSCI 106 Outline 9 Fall 2008 p. 1 Dr. Sara Via Species interactions IV - Mutualism Both participating species benefit (+/+) 1. Nitrogen fixation by Rhizobium (bacteria) Bacteria take N2 from air b ammonium which plants can use Interaction is very species-specific 2. Mycorrhizae on plant roots Mycorrhizae are fungi that infect plant roots Aid in water, nutrient uptake Inside (endomycorrhizae) Outside (ectomycorrhizae) Inside (endomycorrhizae) Aid in P uptake by extending way past root hairs
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Unformatted text preview: Ectomycorrhizae Very important in water uptake, drought resistance BSCI 106 Outline 9 Fall 2008 p. 2 Dr. Sara Via 3. Pollination required by many plants flowers evolved to attract pollinators! 4. Corals and Zooxanthellae ✦ Coral typically found in bright, nutrient poor waters ✦ Zooxanthellae (algae) - Fix carbon ✦ Coral - Acquire nitrogen ✦ Victims of global warming: ✦ If water gets too warm, zoothanthellae leave “Coral Bleaching”- corals die...
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This note was uploaded on 03/23/2009 for the course BSCI 106 taught by Professor Porter during the Fall '08 term at Maryland.

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Mutualism - Ectomycorrhizae Very important in water uptake,...

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