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PIGMENTOS DE TRIATOMÍDEOS BRASILEIROS
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Abstract in Portuguese
Os extratos em metanolºHCL e amônia-mercaptoetanol de conexivos de Triatomídeos examinados apresentaram espectros de absorção no visível com máximo único e nítido em 400 nm. A cromatografia em camada fina de silica-gel e em papel revelou a pesença de pterinas fluorescentes à luz ultravioleta filtrada em 365 nm a julgar pelos Rf comparados com os de pterinas padrões.
Abstract
Some Hemiptera (Triatomidae) common in Brazil (Panstrongylus megistus, Triatoma brasiliensis, Rhodnius prolixus) presented in the external tegument erythropterin, xanthopterin and possibly 3, 4, 7 - trioxypteridine. Most of the coloured extracts showed in the visible a sharp absorption at 400 nm suggesting its anthocyan character. Neither leuco nor biopterin were detected. The Rf was obtained by thin layer chromatography and the absorption measured spectrophotometrically in a Zeiss PQMII apparatus.
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