| Registro completo |
| Provedor de dados: |
Trop. Plant Pathol.
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| País: |
Brazil
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| Título: |
Mosaic in Senna occidentalis in southern Brazil induced by a new strain of Soybean mosaic virus
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| Autores: |
ALMEIDA,ÁLVARO M. R.
SAKAI,JUNICHI
SOUTO,ELIEZER R.
KITAJIMA,ELLIOT W.
FUKUJI,TATIANA S.
HANADA,KAORU
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| Data: |
2002-04-01
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| Ano: |
2002
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| Palavras-chave: |
SMV
Potyvirus
Taxonomy
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| 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.
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| Tipo: |
Info:eu-repo/semantics/article
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| Idioma: |
Inglês
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| Identificador: |
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-41582002000200005
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| Editor: |
Sociedade Brasileira de Fitopatologia
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| Relação: |
10.1590/S0100-41582002000200005
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| Formato: |
text/html
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| Fonte: |
Fitopatologia Brasileira v.27 n.2 2002
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| Direitos: |
info:eu-repo/semantics/openAccess
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