Molluscicidal activity of 2-hydroxy-[1,4]naphthoquinone and derivatives

• Autor(a) principal: Camara,Celso A.
• Data de Publicação: 2008
• Outros Autores: Silva,Tania M.S., da-Silva,Thiago G., Martins,Rodrigo M., Barbosa,Ticiano P., Pinto,Angelo C., Vargas,Maria D.
• Tipo de documento: Artigo
• Idioma: eng
• Título da fonte: Anais da Academia Brasileira de Ciências (Online)
• Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652008000200011
• topic: Biomphalaria glabrata; Artemia salina; toxicity; quinones; schistosomiasis; molluscicidal activity; lawsone; 1,4-naphthoquinone

The toxic profile of lawsone (2-hydroxy-[1,4]naphthoquinone) and a series of [1,4]naphthoquinone derivatives was evaluated against the brine shrimp Artemia salina and against the mollusk Biomphalaria glabrata, the main transmitting vector of schistosomiasis in Brazil. Of the seventeen compounds tested nine fell below the threshold of 100 µg/mL set for potential molluscicidal activity by the World Health Organization. As a general rule derivatives with non-polar substituents presented the highest molluscicidal activities. These substances showed significant toxicity in A. salina lethality bioassay.