Data/hora: 25/06/2024 06:32:57

Biblioteca(s): 	Embrapa Arroz e Feijão; Embrapa Recursos Genéticos e Biotecnologia.	
Data corrente: 	03/01/2007	
Data da última atualização: 	14/05/2022	
Autoria: 	BORGES, M.; BIRKETT, M.; ALDRICH, J. R.; OLIVER, J. E.; CHIBA, M.; MURATA, Y.; LAUMANN, R. A.; BARRIGOSSI, J. A.; PICKETT, J. A.; MORAES, M. C. B.	
Afiliação: 	MIGUEL BORGES, CENARGEN; M. BIRKETT, ROTHAMSTED RESEARCH, Herts-UK; J. R. ALDRICH, USDA; J. E. OLIVER, USDA; M. CHIBA, FUJI FLAVOR CO. Tokyo-Japan; Y. MURATA, FUJI FLAVOR CO. Tokyo-Japan; RAUL ALBERTO LAUMANN, CENARGEN; JOSE ALEXANDRE F BARRIGOSSI, CNPAF; J. A. PICKETT, ROTHAMSTED RESEARCH, Herts-UK; MARIA CAROLINA BLASSIOLI MORAES, CENARGEN.	
Título: 	Sex attractant pheromone from the rice stalk stink bug, Tibraca limbativentris Stal.	
Ano de publicação: 	2006	
Fonte/Imprenta: 	Journal of Chemical Ecology, v. 32, n. 12, p. 2749-2761, Dec. 2006.	
DOI: 	https://doi.org/10.1007/s10886-006-9197-6	
Idioma: 	Inglês	
Conteúdo: 	The male-produced sex pheromone from the Brazilian rice stalk stink bug Tibraca limbativentris is reported. Olfactometer bioassays with sexually mature males and females showed that males attracted females, which suggests that males release a sex pheromone. Males were not attracted to either sex, nor were females attractive to conspecific females. Attraction of the females to males was highest at night. The headspace volatiles collected from male and female bugs were analyzed by gas chromatography (GC) and GC-mass spectrometry. Two male-specific compounds were identified as isomers of 1 'S-zingiberenol, whereas a series of defensive compounds were identified in extracts from both sexes. Zingiberenol has three chiral centers, and the nonselective syntheses used produced two groups of isomers, zingiberenol I containing four isomers, namely (1RS,4RS,1'R)-4-(1',5'-dimethylhex-4'-enyl)-1-methylcyclohex-2-en-1-ol, and zingiberenol II containing the other four isomers, namely (1RS,4RS,1'S)-4-(1',5'-dimethylhex-4'-enyl)- 1-methylcyclohex-2-en-1-ol. Both groups of stereoisomers were more attractive than hexane controls. The absolute configuration of the insect-produced pheromonal components remains to be elucidated, but the 1'S stereochemistry was established for at least one of the isomers.	
Palavras-Chave: 	Allomone; Methylcyclohex; Semioquímico; Zingiberenol.	
Thesagro: 	Arroz; Oryza sativa; Praga de planta; Tibraca limbativentris.	
Categoria do assunto: 	--
O Insetos e Entomologia	
URL: 	http://ainfo.cnptia.embrapa.br/digital/bitstream/item/178062/1/ID-27756-1.pdf	
Registro original: 	Embrapa Arroz e Feijão (CNPAF)	
Exemplares: 	CENARGEN - (27756-1) - UPC - AP - DD - SP 19132 -  - 19132 - DIS
CNPAF - (24633-1) - UPC - AP - DD - 2006 -  - 2006 - DIS