Pix is a plant growth regulators thatinterfereswithotherhormones and affectthegerminationandgrowthof cotton.In thisstudythe effect ofdifferentconcentrationsof pix, namely, 0 (control),10, 20, 30and40 ppm on germination,radicledry weight, radiclelength,insolubleandsoluble sugarsandantioxidantenzymes activity (catalase, peroxidase and poly phenol oxidase) incottonseedling (Gossypium hirsutum L.cv...

copper amine oxidases (caos) catalyse the oxidative de-amination of biogenic amines which are ubiquitous compounds essential for cell growth and proliferation. the enzymes are homodimers containing both topaquinone and a cu(ii) ions as cofactors at the active site of each subunit. after extraction and purification of chickpea (cicer arietinum) amine oxidase by chromatoghraphy, km and vmax of th...

It has been a long-standing hypothesis that the endosymbiotic rhizobia (bacteroids) cope with a concentration of 10 to 20 nM free O2 in legume root nodules by the use of a specialized respiratory electron transport chain terminating with an oxidase that ought to have a high affinity for O2. Previously, we suggested that the microaerobically and anaerobically induced fixNOQP operon of Bradyrhizo...

The enzyme NADPH oxidase is regulated by phospholipase D in intact neutrophils and is activated by phosphatidic acid (PA) plus diacylglycerol (DG) in cell-free systems. We showed previously that cell-free NADPH oxidase activation by these lipids involves both protein kinase-dependent and -independent pathways. Here we demonstrate that only the protein kinase-independent pathway is operative in ...

Purified and reconstituted cytpchrome ~oxidase and mitochondria were crosslinked with biimidates in the presence and absence of cytochrome c. These experiments indicate that oxidase subunit interactions are required for activity and that cytochrome~ mobility may be required for electron transport activity. Biimidate treatment of purified and reconstituted oxidase crosslinks all of the oxidase p...

Methyl sterol oxidase of microsomal synthesis of cholesterol from lanosterol is a mixed-function oxidase that is dependent upon reduced pyridine nucleotide. The methyl sterol oxidase, as well as NADH-cytochrome c reductase, in intact rat liver microsomes are inhibited by anti-cytochrome b5 immunoglobulin, but NADPH-cytochrome c reductase is not affected. There is a decreased time lag prior to o...

Proline oxidase is a p53-induced gene that can mediate apoptosis in lung carcinoma cells. Here, we provide evidence implicating a role for proline oxidase in renal carcinoma. We observed absent or reduced expression of proline oxidase in 8 of 12 primary renal cell carcinomas, with respect to their normal tissue counterparts. Two renal cell carcinomas, which displayed little or no expression of ...