During an investigation of the role of ions in growth regulation, it was found that ethylene diamine tetraacetate (EDTA) inhibits DNA synthesis about 10-fold in cultures of chick embryo cells, while ethylene glycol bis(beta-amino ethyl ether)-N,N'-tetraacetate has no effect. RNA synthesis is only slightly inhibited by EDTA, and protein synthesis is unaffected. EDTA is inhibitory to DNA synthesi...

The administration to rats of putrescine (750 mumol/kg body wt.) caused in liver, kidney and heart an increase in putrescine at 1 h and in diamine oxidase (EC 1.4.3.6) activity within 3-6 h. An increase in spermidine was observed at 9 h in liver and at 6 h in kidney, whereas in heart there was no change. The increase in diamine oxidase activity by exogenous putrescine was prevented by the admin...

The soil remediation at a contaminated site requires knowledge of contaminant transport parameters and processes. This paper presents the determination from column leaching tests in context with two techniques i.e., washing immobilization. To evaluate technique, on polluted were conducted diluted acid solutions hydrochloric acid, ethylene diamine tetraacetic ferric chloride to efficiencies sele...