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Stomata & Their Type


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Stomata & Their Type

  1. 1. & Their type By Pankaj Kukreti
  2. 2. Stomata :Stomata Denoted To Small Pore Present On Leaf , Which Are For Mean Of Gasseous Exchange & Transpiration They Constituent Three Part -Cell Pore - Guard Cell - Subsidiary Cell
  3. 3. Cell Pore :- Pore Present On Leaf - Help In Gasseous Exchange - Transpiration Occur By This
  4. 4. Guard Cell Specialized Cell surrounds Stromatal Pore -Always Present In Pair - Helping Stomata In Opening & Closing -
  5. 5. Subsidiary Cell These Are Type Of Epidermal Cell Which Are Associated With Guard Cell They Are Morphologically Different From Guard Cell also Called Accessory Cell
  6. 6. Stomatal Apparatus Stomatal Pore , Guard Cell & Subsidiary Cell Together Called Stomatal Apparatus
  7. 7. Open & Closed Stomata >> Open Stomata Happen At Day Time Closed Stomata Happen At Night Timing >>At Open Time Transpiration Occur At Closed Timing No Transpiration Occur
  8. 8. Types Of Guard Cell In Dicot Leaf= Kidney Shape In Monocot Leaf= Dum bell Shape
  9. 9. Arrangement Of Stomata In Monocot = Parellel In Dicot = Irregular
  10. 10. Presence Of Stomata In Leaf Polygonum Type Mesophytic Type Monocot Type
  11. 11. Stomata Based On Ontegeny Development Haplocheilic Type :Guard Cell Originate By Stomatal initial & Neighbouring Cell Get Concerted Into Guard Cell Syndetocheili Type :Here , Guard & Subsdiary Cell Originate From Same mother Cell
  12. 12. Metacalfe & Chalk :Describe 4 Type Of Dicot Stomata
  13. 13. Anomocytic Type :Here , Stomata Surround With Limited Number Of Cell , Which Cannot be Differentiated From Other Cell
  14. 14. Anisocytic Type :Here, Stoma Surrounds by 3 Subsdiary Cell , In Which One cell is Smaller Than Other Two
  15. 15. Diacytic Type :Here, Stomal Encloses In Pair Of Subsidiary Cell In Which They Are in At Right angle To Guard Cell
  16. 16. Paracytic Type :Here Subsidairy Cell Arranged In That Manner They Having Same Arrangement As Guard Cell