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Catalase, Peroxidase, and Polyphenoloxidase Activities during Rice Leaf Senescence.
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 andExpand
Catalase Activity in Leaves and Cotyledons During Plant Development and Senescence1)1) Part X of the series "Studies on Leaf Senescence". Supported in part by a Grant from the Council of Scientific
Catalase activity was studied as a function of the level of leaf insertion in eight monocotyledonous and eight dicotyledonous plants. Catalase activity was higher in the mature leaves than in theExpand
Nickel in plant growth and metabolism
SummaryThe relationship of nickel to plants in regard to absorption, translocation and accumulation and its estimation in plant material has been presented. Nickel is usually absorbed in the ionicExpand
Nickel Nutrition of Plants: I. Effect of Nickel on some Oxidase Activities During Rice (Oryza sativa L.) Seed Germination
Summary Effect of different concentrations of nickel chloride (10 -6 M to 10 -1 M) on the germination rate and root-shoot length of rice ( Ozyza sativa L. cv. Ratna) seeds are studied. GerminationExpand
Inorganic pyrophosphatase activity during rice leaf senescence
The activities of the acid and alkaline inorganic pyrophosphatases (EC. 3.6.1.1) were determined in attached and detached senescing rice leaves. The acid inorganic pyrophosphatase had the pH optimumExpand
Effect of benzimidazole and nickel ions in the control of Oryza sativa leaf senescence by red and far-red light
Abstract Changes in the levels of chlorophyll and protein were determined in detached rice leaves floated on water, benzimidazole (mM) and nickel chloride (mM) under continuous dark, red (R) andExpand
Enhancement of senescence in excised rice leaves by hydrogen peroxide
Changes in the catalase activity and the effect of hydrogen peroxide (H2O2) were studied during the senescence of excised rice (Oryza sativa L. cv. Ratna) leaves. Catalase activity declined uponExpand
Biochemical Changes in Excised Leaves of Oryza sativa Subjected to Water Stress
Excised rice (Oryza sativa L. cv. Ratna) leaves were used to compare the changes in the levels of various biochemical intermediates and enzyme activities during senescence in turgid andExpand
Changes in Some Enzyme Activities During Air-Drying of Excised Rice Leaves
Summary Excised rice (Oryza sativa L. cv. Ratna ) leaves were air-dried or kept turgid by floating them on water at a temperature of 30 ± 2 °C. Acid inorganic pyrophosphatase activity increased butExpand
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