Venatien Pattern in Leaves

Venation Pattern of leaves 14 Livein Auxin in the EGF im/dres in Plasts 3°vein vivein Leaf trace Leaf vein arise from procambium cell Leaf gap emaging from leaf primordia in the SAM. Auxin from leaf in required for vacular vegeneration Developing leaf states act as an auxid source & excirling keey vasculature act as an auxin sinc sinc e anxin directed basipelally to existing vasculate PJ . smt I PO Existing vasculature localization of PIN1 Axin dirededlo a point in proteins by helpsin leaf primordia mediate the x intial formation Po auxin flow. L Theprevious Leaf Primordium P1 auxin directed basipetally to existing vasculature that influence theformation of Leaf trace

Phinow I andina Existing vasculate control development gnewleaftrac e P3 D2 Po Pz P2 Po Decapitated reciest vasculature attractnew leaf trace towards it iphleemelevelopsfirst & proceed acropetally into the leaf primoridium xylem differentiation lag behind accopetally basipetally Po Po xylem basispetal acropetal development xylem Acropetal of phlorem 0 Ground Preprocartium Peocambium meislem (cubeshape) elargile I/c. Ifromed . Divers Developinto III form 1 i vein/midvein 3'vein Drain

Adarialized Aboxialized Procambium normal vein pallen vein pattern. xylem Phono normal if PHAN if KANADI development ironotated mutation auxin channelization regulate higher order vein formation CP- convagent point auxinflow from CP regulate vein formation. (b) (a) Pin protein Pin I /Pin 6 motation Yuca I 12 10/4/6 mutation reduce venationpattein severely affect Conclusion: Pinprolein the venation patter essential for Pinfauxinrequired venattation normal (a) (b) for propervein formation svillsomeveins present other pathways of auxin may produce trace Auxin, influence minimum dvlpmt of vein.