Catalase, Peroxidase, and Polyphenoloxidase Activities during Rice Leaf Senescence

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ID: 292072
1976
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Abstract
The activities of catalase, peroxidase, and polyphenoloxidase were studied in attached and detached rice (Oryza sativa L. cv. Ratna) leaves. Catalase activity decreased while peroxidase and polyphenoloxidase activities increased during senescence of both attached and detached rice leaves. Kinetic (5 mum) and benzimidazole (1 mm), which are known to delay the senescence of detached rice leaves, retarded the decrease of catalase activity during detached leaf senescence. On the other hand, these chemicals accelerated the increase of peroxidase and polyphenoloxidase activities over the water control. Total phenolics accumulated in detached and darkened rice leaves, but in attached leaf senescence in light no accumulation of phenolics was observed.
Reference Key
openalex_W2008982968 Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Manoranjan Kar, Dinabandhu Mishra
Journal Plant physiology and biochemistry : PPB
Year 1976
DOI
10.1104/pp.57.2.315
URL
https://academic.oup.com/plphys/article-pdf/57/2/315/35578559/plphys_v57_2_315.pdf
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