EVALUTION OF BIOCHEMICAL INDICATORS OF IRON AND MANGANESE CONTAMINATION FOR SUNFLOWER PLANTS: CHLOROPHYLL CONTENT, CATALASE AND PEROXIDASENANDITA JENA AND PRASANT KUMAR BEHERA
Catalase and Peroxidase show grate response to the metal pollutants and increase in enzyme activity which may indicate a stress situation in plant. To find the effect of various levels of Fe and Mn on chlorophyll contents and peroxidase enzyme activity was studied on sunflower plant. Concentration of chlorophyll a and b increased with rise of Fe concentration under the condition of Mn deficiency or excess. Catalase was positively correlated to chlorophyll b where as peroxidase is negatively correlated to chlorophyll a and b. Activity of catalase increased with increase of Mn concentration up to 40 m mol after which it started declining. Peroxidase showed reverse effect which indicate that Mn and Fe nutrient level modified the total catalase and peroxidase activity in plant (sunflower).
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