PLANT APOPTOSIS

Plant Apoptosis (PCD) 1 Megaspore formation 2 Suspensor Degeneration 3 Endorpam formation 4 Tracheary element formation Xylenverselo 5. Tapetal cell degeneration during pollon development 6. Roof cap formaton - outerlayer of roof, cap cells 7. Auenchymaformation hypop aic condition, inducedby ethylene 8. heaf scnescence Referfarmsones 9 Teichome development 10 Pathogen infection Hyper sensitivity responce (HSR) of PCD 2types Plant lads Vacular type truecaspace HSR type PCD PCD activate lack laspase hydechytic saustmink, enzyme Decease content, hycholytic enzymes + invaloule ondoutophagy intiated. release content to apoplastic side vaccule swell f accumilate prolease, & burst nuclease elc infected cell sorr Degeade remaining cellular content

Vascolas Type PCD Endospan Tracteary Continous formation element compartment formation vacoule I vacoules bust houstand degrade degradesa lignified 20call I all cell contents bors cellcontents 2°cellwall wal remains including'cal except 2 cellwall wal formed by lightification formation of a continous compeatment Zinnia Xylogenesis in Xegia elegance - 2harmones influence zylogonesis 3phases Intial phase - Aox & Cytokininin Phase I : Dedefferentiation of hignification. Brawsinosteroids mesophyll and redeferrentialed pore formation Xylogen to tracheary element. anendplates. notahormore PhaseII :- 2 cell wall begin to form & autophagy Begins. Phase III : 2° cell wall thickening, lignification ,vacoole Birst.