Interrelationships of Catalase, Peroxidase, Hematin, and Chlorophyll

Interrelationship of Iron and Manganese Supply in Growth, Chlorophyll, and Iron Porphyrin Enzymes in Barley Plants

“…In respect to the depression in both catalase and peroxidase at the deficient levels of iron supply, 0.056 to 0.56 ppm at the normal manganese supply, our results are in accord with DeKock et al (13) (42), Ban-erjee (7), and Agarwala and Sharma (2). The depression in chlorophyll at low iron levels has also been reported by Sideris and Young (36), Weinstein and Robbins (42), DeKock et al (13), and Agarwala and Sharma (2).…”

“…The depression in chlorophyll at low iron levels has also been reported by Sideris and Young (36), Weinstein and Robbins (42), DeKock et al (13), and Agarwala and Sharma (2). The depression in chlorophyll catalase and peroxidase at low levels of iron supply could be a result of the depression in the synthesis of a precursor, common to chlorophyll and the heme part of catalase and peroxidase which was earlier suggested to be dependent on the level of iron supply (2) rather than the tissue iron.…”

Effect of Iron Supply on Growth, Chlorophyll, Tissue Iron and Activity of Certain Enzymes in Maize and Radish

“…The enzymes, catalase, peroxidase and aldolase (fig 8. 9) in both the plant species investigated and phosphorylase in radish raised at low levels of iron supply also showe(d a marked and significant increase on application of additional iron (fig 7, 8) In res)ect to the depression in both catalase and(I leroxi(lase at the (leficielit levels of ironi stil)liv the restilts obtaille(l here aire in accord xxvith DeKock et al (14) an(l Nicholas aln (;oodn)ani (27 The optlimal yield of ili 7.e an1d ra(lisl xas o0)-taille(l at (.5 and(l ().1, m i ron suil)l)lv. reslpectivxle.…”

Effects of Iron and Oxygen on Chlorophyll Biosynthesis

“…This relationship was carefully documented by DeKock et al (6) and by Evans (8). Marsh et al (15) noted an inhibition of '4C incorporation from citrate, succinate, and a-ketoglutarate into Chl in Fedeficient cowpeas.…”