lecture5 - 4/12/09 1 Roots Root Growth Root Anatomy and...

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Unformatted text preview: 4/12/09 1 Roots Root Growth Root Anatomy and Function Modifed Roots Reading: Botany or Gardeners, Pages 34-38, 71-74, 115-124 Root Function 1. Anchorage 2. Absorption 3. Conduction 4. Storage KINDS OF ROOT SYSTEMS TAPROOT - Has one main root that grows downward; pine trees, carrots and beets are examples. Eudicots KINDS OF ROOT SYSTEMS FIBROUS ROOT SYSTEMS - Has many adventitious roots. No one root is more prominent that the others; wheat and corn are examples. Monocots The root tip is covered with a rootcap, which produces mucigel, a polysaccharide coating that lubricates the soil ahead of the growing root. Root Cap 4/12/09 2 Primary Root Growth The root tip contains 3 zones of cells in successive stages of primary growth Zone of Cell Division Located near the tip of the root Includes the apical meristem and its derivatives Primary Root Growth The root tip contains 3 zones of cells in successive stages of primary growth Zone of Cell Elongation...
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This note was uploaded on 02/07/2011 for the course BIO 114 taught by Professor Ritter during the Spring '09 term at Cal Poly.

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lecture5 - 4/12/09 1 Roots Root Growth Root Anatomy and...

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