Data/hora: 23/09/2024 13:51:59

Biblioteca(s): 	Embrapa Amazônia Oriental.	
Data corrente: 	04/01/2018	
Data da última atualização: 	22/12/2021	
Autoria: 	LUZ, S. F. M. da; YAMAGUCHI, L. F.; KATO, M. J.; LEMOS, O. F. de; XAVIER, L. P.; MAIA, J. G. S.; RAMOS, A. de R.; SETZER, W. N.; SILVA, J. K. do R. da.	
Afiliação: 	Shirlley F. M. da Luz, UFPA; Lydia F. Yamaguchi, USP; Massuo J. Kato, USP; ORIEL FILGUEIRA DE LEMOS, CPATU; Luciana P. Xavier, UFPA; José Guilherme S. Maia, UFOPA; Alessandra de R. Ramos, UNIFESSPA; William N. Setzer, University of Alabama; Joyce Kelly do R. da Silva, UFPA.	
Título: 	Secondary metabolic profiles of two cultivars of Piper nigrum (Black Pepper) resulting from infection by Fusarium solani f. sp. piperis.	
Ano de publicação: 	2017	
Fonte/Imprenta: 	International Journal of Molecular Sciences, v. 18, n. 12, 2434, 2017.	
DOI: 	10.3390/ijms18122434	
Idioma: 	Inglês	
Conteúdo: 	Bragantina and Cingapura are the main black pepper (Piper nigrum L.) cultivars and the Pará state is the largest producer in Brazil with about 90% of national production, representing the third largest production in the world. The infection of Fusarium solani f. sp. piperis, the causal agent of Fusarium disease in black pepper, was monitored on the cultivars Bragantina (susceptible) and Cingapura (tolerant), during 45 days? post infection (dpi). Gas Chromatography-Mass spectrometry (GC-MS) analysis of the volatile concentrates of both cultivars showed that the Bragantina responded with the production of higher contents of &#945;-bisabolol at 21 dpi and a decrease of elemol, mostly at 30 dpi; while Cingapura displayed an decrease of &#948;-elemene production, except at 15 dpi. The phenolic content determined by the Folin Ciocalteu method showed an increase in the leaves of plants inoculated at 7 dpi (Bragantina) and 7?15 dpi (Cingapura); in the roots, the infection caused a phenolic content decrease in Bragantina cultivar at 45 dpi and an increase in the Cingapura cultivar at 15, 30 and 45 dpi. High Performance Liquid Chromatography-Mass spectrometry (HPLC-MS) analysis of the root extracts showed a qualitative variation of alkamides during infection. The results indicated that there is a possible relationship between secondary metabolites and tolerance against phytopathogens.	
Palavras-Chave: 	Óleos essenciais; Pimenta preta.	
Thesagro: 	Doença; Fusarium.	
Categoria do assunto: 	F Plantas e Produtos de Origem Vegetal	
URL: 	http://ainfo.cnptia.embrapa.br/digital/bitstream/item/170296/1/Publicacao-ijms-18-02434.pdf	
Registro original: 	Embrapa Amazônia Oriental (CPATU)	
Exemplares: 	CPATU - (54511-1) - UPC - AP - DD -  -  -  - DIS