Enzymatic and anatomical changes in abscission zone cells of apple fruits induced by Ethephon |
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| Authors: | V K Pandita K K Jindal |
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| Institution: | (1) Growth Regulation and Bioassay Laboratory, Department of Pomology and Fruit Technology, University of Horticulture and Forestry, 173230 Solan (H. P.), India |
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| Abstract: | The enhancement of fruit abscission zone formation with ethephon treatment caused an increase in soluble proteins, endo-cellulase,
exo-polygalacturonase and peroxidase activities. Exo-cellulase and endo-polygalacturonase did not show any relationship with
apple abscission. The separation of cells initiated in the cortex region and progressed towards vascular tissue. Cell separation
in the cortex appeared to be due to dissolution of middle lamella but vascular tissues ruptured mechanically. |
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