Data/hora: 22/09/2024 16:03:42

Biblioteca(s): 	Embrapa Amazônia Oriental.	
Data corrente: 	07/11/2014	
Data da última atualização: 	04/07/2022	
Autoria: 	VILHENA, K. S. S.; GUILHON, G. M. S. P.; ZOGHBI, M. das G. B.; SANTOS, L. S.; SOUZA FILHO, A. P. S.	
Afiliação: 	Karyme S. S. Vilhena, UFPA; Giselle Maria Skelding Pinheiro Guilhon, UFPA; Maria das Graças B. Zoghbi, MPEG; Lourivaldo Silva Santos, UFPA; ANTONIO PEDRO DA SILVA SOUZA FILHO, CPATU.	
Título: 	Chemical investigation of Cyperus distans L. and inhibitory activity of scabequinone in seed germination and seedling growth bioassays.	
Ano de publicação: 	2014	
Fonte/Imprenta: 	Natural Product Research, v. 28, n. 23, p. 2128-2133, 2014.	
DOI: 	10.1080/14786419.2014.925891	
Idioma: 	Inglês	
Conteúdo: 	Chemical investigation of the rhizomes of Cyperus distans (Cyperaceae) led to the identification of ?-ciperone, cyperotundone and scabequinone, besides other common constituents. Complete assignment of the 13C NMR data of scabequinone is being published for the first time. The inhibitory effects of C. distans extracts and scabequinone on the seed germination and seedling growth of Mimosa pudica, Senna obtusifolia and Pueraria phaseoloides were evaluated. Seed germination inhibition bioassay revealed that S. obtusifolia (52?53%) was more sensitive to the hexane and the methanol extracts at 1% than M. pudica (0?10%). Scabequinone at 250 mg L?1 displayed seed germination inhibitions more than 50% and radicle growth reduction of more than 35% of the test species S. obtusifolia and P. phaseoloides, while the hypocotyl growth of M. pudica was significantly affected (>50%) by the quinone at the same concentration. These results demonstrate that scabequinone contributes to the overall inhibitory activities of C. distans.	
Palavras-Chave: 	Investigação química.	
Thesagro: 	Germinação; Muda; Semente.	
Categoria do assunto: 	W Química e Física	
Registro original: 	Embrapa Amazônia Oriental (CPATU)	
Exemplares: 	CPATU - (50391-1) - UPC - AP - DD -  -  -  - DIS