title: [Effect of pesticides on bacterial membranes].
abstract: The effect of pure preparation of ordram, fosalon, DDT, methoxychlorine, hydrel, dihydrel, 2,4-D, 2M-4C and of technical preparations of saturn, linuron, ronstar and keltan on the membrane functions (respiration and motility) of Azospirillum brasilense and Chromatium minutissimum cells and on malate and NADH oxidation by the isolated membranes of Micrococcus lysodeikticus was investigated. The effect varied from irreversible impairment to undetectable impairment of the measured activities depending on the type of bacteria and on the chemical used. The ordram induced permeability of the A. brasilense membranes without inhibition of the respiratory chain activity and selective inhibition of malate oxidase accompanied by stimulation of NADH oxidation in the M. lysodeikticus membranes indicates a possibility of ordram application as a regulator of bacterial metabolism.
mesh_terms: D001419:Bacteria / Q000187:drug effects / Q000378:metabolism; D002462:Cell Membrane / Q000187:drug effects* / Q000378:metabolism; D008837:Micrococcus / Q000187:drug effects / Q000378:metabolism; D010084:Oxidation-Reduction; D010101:Oxygen Consumption / Q000187:drug effects; D010575:Pesticides / Q000378:metabolism / Q000494:pharmacology*; D012988:Soil Microbiology
chemical_list: D010575:Pesticides
vernacular_title: Deĭstvie pestitsidov na membrany bakteriĭ.