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Type: Artigo de periódico
Title: Effect Of Some Enzymes, Chemicals And Insecticides On The Macromolecular Structure Of The Froth Of The Spittlebug, The Cercopid Deois Sp.
Author: Mello M.L.S.
Abstract: The action of trypsin, collagenase, testicular hyaluronidase, sodium dodecyl sulphate (SDS), urea, guanidinium-chloride (GnCl), n-butanol, dioxane, malathion, alkylphenolpolyglycol ether and iso-octylphenoxy-polyethoxy ethanol/dioctyl sodium sulphocyanate (v/v) on the macromolecular structure of the froth which covers the nymphs of Deois sp., a pest of pasture and agriculture, was studied using polarization microscopy. SDS, n-butanol, GnCl and iso-octyl-phenoxy-polyethoxy ethanol/dioctyl sodium sulphocyanate were the most efficient compounds at promoting disorganization and bursting of the froth bubbles at a relatively fast rate. Disorganization of the froth macromolecules could be visualized through attenuation or abolishment of the birefringence attributable to the high macromolecular orientation of structural proteins and proteoglycans in the wall of the froth bubbles. © 1987 Dr W. Junk Publishers.
Editor: Kluwer Academic Publishers
Rights: fechado
Identifier DOI: 10.1007/BF00367621
Date Issue: 1987
Appears in Collections:Unicamp - Artigos e Outros Documentos

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