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Specialized Roots. Food Storage Roots. Most roots store some food Some are enlarged to store starch and other carbohydrates Examples: sweet potato, carrot, beet, radish. Pneumatophores. Extend above the surface of water for plants that grow in swampy areas Helps roots exchange gases
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Food Storage Roots • Most roots store some food • Some are enlarged to store starch and other carbohydrates • Examples: sweet potato, carrot, beet, radish
Pneumatophores • Extend above the surface of water for plants that grow in swampy areas • Helps roots exchange gases • Example: Mangrove
Aerial Roots • Roots that occur above the surface of the soil • Examples: prop roots in corn (support in high wind)
Aerial Roots Continued • Adventitious roots in ivy for climbing
Parasitic Roots • Peg-like projections penetrate host’s stem • Usually in plants that do not contain chlorophyll (can’t make food) • Examples: pinedrops, dodder • (one organisms benefits, one is harmed)
Dodder: NO Chlorophyll —Not green!
Buttress Roots • Huge roots near base of trunk • Usually in trees that grow in shallow soil • Rainforest environments Example: many tropical trees