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Specialized Roots Food Storage Roots Sweet Potatoes Water Storage Roots Pumpkin Family Propagative Roots Adventitious Buds develop into suckers.

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Presentation on theme: "Specialized Roots Food Storage Roots Sweet Potatoes Water Storage Roots Pumpkin Family Propagative Roots Adventitious Buds develop into suckers."— Presentation transcript:

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5 Specialized Roots Food Storage Roots Sweet Potatoes Water Storage Roots Pumpkin Family Propagative Roots Adventitious Buds develop into suckers. Fruit Trees

6 Specialized Roots Pneumatophores Spongy roots that extend above the water’s surface and enhance gas exchange between the atmosphere and subsurface roots. Aerial Roots Orchids

7 Specialized Roots Contractile Roots Pull plant deeper into the soil. Lilly Bulbs. Buttress Roots Stability - Tropical Trees. Parasitic Roots Have no chlorophyll and are dependent on chlorophyll-bearing plants for nutrition. Dodder

8 Mycorrhizae Mycorrhizae form a mutualistic association with plant roots. Fungus is able to absorb and concentrate phosphorus much better than it can be absorbed by the root hairs. Particularly susceptible to acid rain.

9 Mycorhizae

10 Root Nodules Few species of bacteria produce enzymes that can convert nitrogen into nitrates and other nitrogenous substances readily absorbed by roots. Legume Family (Fabaceae) Root nodules contain large numbers of nitrogen-fixing bacteria.

11 Copyright © McGraw-Hill Companies Permission Required for Reproduction or Display

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