Data/hora: 09/06/2024 11:46:09

Provedor de dados: 	102	
País: 	Brazil	
Título: 	Mosaic in Senna occidentalis in southern Brazil induced by a new strain of Soybean mosaic virus	
Autores: 	ALMEIDA,ÁLVARO M. R.; SAKAI,JUNICHI; SOUTO,ELIEZER R.; KITAJIMA,ELLIOT W.; FUKUJI,TATIANA S.; HANADA,KAORU.	
Data: 	2002-04-01	
Ano: 	2002	
Palavras-chave: 	SMV; Potyvirus; Taxonomy.	
Resumo: 	Plants of Senna occidentalis (sin. Cassia occidentalis) with mosaic symptoms were collected near a soybean (Glycine max) field where some plants exhibited symptoms of mosaic and blistering. A preliminary examination of leaf tissue from diseased S. occidentalis by electron microscopy revealed the presence of pinwheel inclusions as well as long flexuous particles, indicating the presence of a potyvirus. Host range, serology, and amino acid sequence from this potyvirus were similar to those from other Brazilian isolates of Soybean mosaic virus (SMV). The 3'- terminal region of the genomic RNA was cloned and a cDNA sequence of 1.9 kb upstream of the poly (A) tract was determined. The sequence contains a single open reading frame and a 3'- non-translated region (NTR) of 259 bp. The nucleotide sequence of the CP gene of SMV-Soc was 98% identical to that of Brazilian isolates SMV-B, SMV-L, and SMV-FT10. The percentage of nucleotide identity of their 3'-NTR's was 91, 98, and 99% in relation to SMV-L, SMV-B, and SMV-FT10, respectively. In contrast to other Brazilian SMV isolates studied, SMV-Soc was able to infect sunflower (Helianthus annuus). Based on these results, the S. occidentalis isolate was identified as a new strain of SMV belonging to the SMV strain, group G5 and was named SMV-Soc. This is the first report of naturaly occurring SMV infecting plants of S. occidentalis in Brazil, adding this weed as a new source of SMV in the field.	
Tipo: 	Info:eu-repo/semantics/article	
Idioma: 	Inglês	
Identificador: 	http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-41582002000200005	
Editor: 	Sociedade Brasileira de Fitopatologia	
Relação: 	10.1590/S0100-41582002000200005	
Formato: 	text/html	
Fonte: 	Fitopatologia Brasileira  v.27 n.2 2002	
Fonte: 	info:eu-repo/semantics/openAccess