Overview

• anchor plant
• absorb water from environment
• absorb nutrients from environment
• store food [as complex carbohydrates]

Development

• embryo [in seed] has hypocotyl & radicle with apical and small lateral meristems
• on germination radicle becomes primary or tap root
• branch roots grow from primary root
• adventitious roots grow from stem
  • sometimes spontaneously
  • often in response to stem injury
  • may be triggered by hormone
    [auxin (pg 194-197) or auxin and gibberellin (pg 197-198)]

Anatomy

• Root Cap
• Apical Meristem
• region of elongation
• region of maturation

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