Lecture 3_Roots

Lecture 3_Roots - BIS001C A01-A20 FQ 2008 E-mail...

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1 BIS001C A01-A20 FQ 2008 E-mail: [email protected] ROOTS BIS1C Topic 3 Lecture Outline I. Morphology II. Function III. Structure IV. Lateral Roots V. Internal Anatomy VI. Root Crops
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2 ROOTS I. Morphology A. Below ground part of the plant. B. Distinct differences between dicot and monocot root systems at gross level. Example: -”Taproot” versus “fibrous” root systems. Root Systems Taproot Fibrous
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3 ROOTS II.Function A. Anchorage: 1. Root systems in soil, or 2. Aerial roots, or 3. Adventitious roots. B. Absorption: 1. Root hairs. C. Rhizosphere interactions: 1. Soil and bacteria, with “mucigel” Extent of the dicot root system mirrors the diameter of the crown of the tree
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4 “Adventitious” roots on a monocot palm tree: What does that mean? Prop Roots “Epiphyte” versus “Adventitious Roots” Epiphytes make aerial roots
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“Epiphyte” versus “Adventitious Roots” Epiphyte” versus “Adventitious Germinating dicot seedling with root hairs Root hairs have an important role in the absorption of water and minerals from the soil. Primary root
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This note was uploaded on 05/17/2010 for the course BIO BIS 1C taught by Professor Oneill during the Spring '10 term at UC Davis.

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Lecture 3_Roots - BIS001C A01-A20 FQ 2008 E-mail...

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