Data/hora: 30/05/2024 12:08:50

Biblioteca(s): 	Embrapa Mandioca e Fruticultura.	
Data corrente: 	07/10/1993	
Data da última atualização: 	07/10/1993	
Autoria: 	NICKEL, O.; COSTA, N.	
Afiliação: 	EMBRAPA, C. P. 007, 44380 Cruz das Almas, Bahia, Brazil.	
Título: 	Pathological changes in the wood of grapefruit and sweet orange plants affected by Bahia-type psorosis.	
Ano de publicação: 	1991	
Fonte/Imprenta: 	Riverside, California: international Organization of citrus virologists,1991.	
Páginas: 	p 373-379	
Idioma: 	Inglês	
Notas: 	Conference of the International Organization of citrus virologists,11., 1991, Riverside, California, Proceedings...	
Conteúdo: 	Wood of 20 varieties of grapefruit and of two varieties of sweet orange affected by Bahia-type (tB) psorosis, was examined histologically. in stained 28-32 sections of trunks, scaffold and smaller branches, dissolution of parenchymatous cells and disintegration of the vascular bundles were observed, giving rise to concentric rings of gum-filled pockets.These histological alterations are similar to those caused by other citrus viruses such as psorosis A, impietratura,cristacoritis and concave gum. In addition peduncles of diseased plants displeyed extensive areas of xylem disintegration and necrosis of parenchymatous cells. Medullary ray cels showed atypical division and hyperplasia in the affected tissue regions.	
Palavras-Chave: 	citros.	
Thesagro: 	Doce; Doença; Laranja; Pomelo; Vírus.	
Categoria do assunto: 	--	
Registro original: 	Embrapa Mandioca e Fruticultura (CNPMF)	
Exemplares: 	CNPMF - (13331-1) - ADC - PL - -- - 634.3040601 - C748p - 1992000183 - DIS