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ABSTRACTSome ichthyotoxic plants are study object aiming to discover promising substances in the field of Biotechnology, in search of plant extracts which can be used or even transformed into natural insecticides. This paper presents a bibliographical survey in order to check the traditional use of ichthyotoxic plants as bioinsecticide. Among the plants identified as ichthyotoxic, the most cited in traditional use are those from the genera Derris, Serjania, Lonchocarpus, Magonia, and Tephrosia. The survey suggests that ichthyotoxic plant extracts can contain classes of chemical compounds such as isoflavonoids and tannins with a bioinsecticidal effect and, thus, they can be used in Biotechnology, contributing to reduce the use of synthetic insecticides that present a high toxicity level.

RESUMOUso de plantas ictiotóxicas como bioinseticida: revisão de literatura. Algumas plantas ictiotóxicas são objeto de estudos com a finalidade de descobrir substâncias promissoras no campo da Biotecnologia, na busca de extratos vegetais que possam ser usados ou mesmo transformados em inseticidas naturais. Esse artigo apresenta uma pesquisa bibliográfica sobre o uso tradicional de plantas ictiotóxicas como bioinseticida. Entre as plantas identificadas como ictiotóxicas, as mais citadas no uso tradicional são as dos gêneros Derris, Serjania, Lonchocarpus, Magonia e Tephrosia. A pesquisa sugere que extratos de plantas ictiotóxicas podem conter classes de compostos químicos, como isoflavonoides e taninos, com efeito bioinseticida e, assim, podem ser usados na Biotecnologia, contribuindo na redução do uso de inseticidas sintéticos que possuem alto nível de toxicidade.

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This paper discusses the use of animals prescribed as medicines by herbalists from Feira de Santana city in the State of Bahia, Northeastern Brazil. Data were obtained by undergraduates of the Biology course of Feira de Santana State University, who performed open interviews with herbalists at Centro de Abastecimento, the main local market. The medicinally used faunistic resources are echinoderms, arthropods, fish, reptiles, birds and mammals. Folk remedies are administered as teas, syrups or plasters. Respiratory affections predominated and fat was the most common zootherapeutic. It was observed that some of the useful species are in danger of extinction. It is suggested that the rearing of these species in traditional farming systems will allow their conservation, while at the same time they will also results in people's life improvement. Traditional knowledge on folk medicine is to be studied in order to lead to the discovery of new sources of drugs.

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