Detection and partial characterization of a carlavirus causing stem necrosis of soybean in Brazil

Stunting and stem necrosis were noticed in soybeans (Glycine max) grown in 2000/2001 in West Central Brazil the same condition was also observed in the following year in plantations as far as 2,000 km from the initial area. Based on transmission (mechanical, graft, insect vector), purification and s...

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Veröffentlicht in:Fitopatologia brasileira 2005-04, Vol.30 (2), p.191-194
Hauptverfasser: Almeida, Álvaro M. R.(Embrapa Soja), Piuga, Fernanda F.(Universidade do Norte do Paraná), Marin, Silvana R.R.(Embrapa Soja), Kitajima, Elliot W.(Escola Superior de Agricultura Luiz de Queiroz Setor de Fitopatologia), Gaspar, José O.(Universidade Estadual Paulista Instituto de Biociências, Letras e Ciências Exatas), Oliveira, Thalita G. de(Universidade do Norte do Paraná), Moraes, Tanara G. de(UNIFIL)
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Sprache:eng
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Zusammenfassung:Stunting and stem necrosis were noticed in soybeans (Glycine max) grown in 2000/2001 in West Central Brazil the same condition was also observed in the following year in plantations as far as 2,000 km from the initial area. Based on transmission (mechanical, graft, insect vector), purification and serology, electron microscopy and molecular studies the causal agent was determined to be a whitefly-borne carlavirus which is possibly related to Cowpea mild mottle virus (CpMMV). No ano agrícola de 2000/2001, ocorreu um surto de nanismo e necrose da haste em soja (Glycine max) plantada em duas áreas do Brasil Central e na safra seguinte, esta anomalia foi constatada em outras regiões produtoras, mesmo distantes mais de 2.000 km de onde fora inicialmente constatada. Estudos envolvendo ensaios de transmissão (enxertia, mecânica e insetos vetores), microscopia eletrônica, purificação, sorologia e ensaios moleculares indicaram que a enfermidade foi causada por um carlavirus transmitido por mosca branca, possivelmente relacionado ao Cowpea mild mottle virus (CpMMV).
ISSN:0100-4158
1678-4677
1678-4677
0100-4158
DOI:10.1590/S0100-41582005000200016