Data/hora: 03/06/2024 11:30:26

Provedor de dados: 	82	
País: 	Brazil	
Título: 	Biologia comparada e comportamento de Tetranychus urticae Koch (Acari: Tetranychidae) e Phytoseiulus macropilis (Banks) (Acari: Phytoseiidae) em algodoeiro bollgardTM e Isolinha não-Transgênica	
Autores: 	Esteves Filho,Alberto B; Oliveira,José V de; Torres,Jorge B; Gondim Jr,Manoel G C.	
Data: 	2010-06-01	
Ano: 	2010	
Palavras-chave: 	Transgenic cotton; Cry1Ac; Tritrophic interaction; Nontarget arthropod.	
Resumo: 	The two spotted spider mite, Tetranychus urticae Koch, is a nontarget herbivore of Bt-cotton, but acquires and accumulates higher levels of Cry toxin than that expressed by transgenic plants. This work investigated the development and reproduction of T. urticae and of the predator Phytoseiulus macropilis Banks, during three successive generations looking for potential nontarget effect. In addition, behavioral studies on feeding preference, oviposition, and predation were carried out on Bt and non-Bt cottons. The development and reproduction of T. urticae and P. macropilis was conducted using leaf discs of Bt and non-Bt cottons. Arena containing leaf discs from both cotton types connected by a slide coverslip were also used in the behavioral studies. Averages of the three generations showed that the Bt-cotton does not affect the development, survival of immature stages, and reproductive output of T. urticae and of the predator P. macropilis. Furthermore, the preference for feeding and oviposition of T. urticae and P. macropilis were similar on both cotton types. In addition, P. macropilis exhibited similar predatory behavior on T. urticae fed on both cotton types. Levels of Cry1Ac toxin in T. urticae was 3.97 times greater than that found in the Bt-cotton plants as determined using a ELISA test. Despite of the amount of toxin acquired by the prey (T. urticae), no detectable levels of Cry1Ac were found in the predatory mite P. macropilis.	
Tipo: 	Info:eu-repo/semantics/article	
Idioma: 	Português	
Identificador: 	http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-566X2010000300005	
Editor: 	Sociedade Entomológica do Brasil	
Relação: 	10.1590/S1519-566X2010000300005	
Formato: 	text/html	
Fonte: 	Neotropical Entomology  v.39 n.3 2010	
Fonte: 	info:eu-repo/semantics/openAccess