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Chapter 7: Roots (Other types of Roots and Root modifications (Contractile…

- - - - beets
      - carrots
      - celery
    - - datura
      - phlox
      - many daisies
  - - - more vascular bundles
      - wider
    - - transport additional nutrients and water to stem
    - - tropical tree
      - brace trunk
      - upper side grow faster
  - - - fungal hyphae
      - penetrate root cortex cells
      - never invade cells
    - - hyphae penetrate the root cortex cells as endodermis
      - cell cannot pass Casparian strip
  - - - some prokaryotes use N2
      - nitrogenous compounds
    - - bacteria sits
      - extends to root's inner cortex
    - - simple or complex
      - meristematic region
      - vascular tissue
      - endodermis
  - - - tristerix
      - inadequate growth in soil
- - - - because of
        
        no disruptions
        
        leaf primordia
        
        leaf traces
        
        axillary buds
    - - inactive central region
      - cells resistant to harfmul agents
        
        radiation
        
        toxic chemicals
      - reserve of healthy cells
  - - - primary xylem
      - primary phloem
    - - metaxylem
      - metaphloem
  - - - free access to vascular tissure
      - cortical cell differentiates
      - tangential walls
    - - altered walls
      - control minerals enter xylem
  - - - suspected slow to develop
      - passageways absorption of minerals
    - - mineral pressure
      - water pressure from absorption
- - - - fibrous root system
      - sweet potato
    - - embryonic root
      - taproot develops
        
        carrots
      - largest out of lateral roots
    - - increase
        
        absorptive
        
        transportion
      - not limited to monocots
  - - - apical meristem of root
        
        protected thick layer of cells
    - - secreted by root cells
      - lubricated