Barley yellow dwarf virus-PAV in Brazil: seasonal fluctuation and biological characteristics
Autor(a) principal: | |
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Data de Publicação: | 2013 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Tropical plant pathology (Online) |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1982-56762013000100002 |
Resumo: | The yellow dwarf disease in winter cereal crops is caused by species of Barley yellow dwarf virus (BYDV) and Cereal yellow dwarf virus (CYDV) (Luteoviridae). These viruses are transmitted to grasses (Poaceae) by aphids (Aphididae) and the frequency of virus population is affected by oscillations in the vector and host populations. Seasonal fluctuations of BYDV-PAV, BYDV-MAV, and CYDV-RPV in aphids and grasses were analyzed in corn in the summer, and wheat and oat plots in the winter in Coxilha, RS, Brazil. Among the aphids collected, 12.7% transmitted B/CYDV, and 92.6% of those aphids were Rhopalosiphum padi while 7.4% were Sitobion avenae. The viruses that R. padi transmitted were BYDV-PAV (95.4%), CYDV-RPV (2.3%), and BYDV-MAV+PAV (2.3%), while S. avenae only transmitted BYDV-PAV. Among the wheat and oat plants collected, 65.8% were seropositive, all of which were infected with BYDV-PAV and 0.7% of which were also infected with BYDV-MAV. The population dynamics of the virus was similar in aphids and plants, with peaks in the winter crop season. The 35 isolates of BYDV-PAV analyzed were able to infect wheat and oat, being transmitted by R. padi (EF=94.4%), S. avenae (EF=76.1%), and M. dirhodum (EF=63.4%). They were not transmitted by S. graminum or S. maydis. Since several common vector species efficiently transmit BYDV-PAV, this may explain why it is the dominant virus species in the "yellow dwarf pathosystem" in Southern Brazil. |
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Barley yellow dwarf virus-PAV in Brazil: seasonal fluctuation and biological characteristicsLuteoviridaeaphidsBYDVCYDVThe yellow dwarf disease in winter cereal crops is caused by species of Barley yellow dwarf virus (BYDV) and Cereal yellow dwarf virus (CYDV) (Luteoviridae). These viruses are transmitted to grasses (Poaceae) by aphids (Aphididae) and the frequency of virus population is affected by oscillations in the vector and host populations. Seasonal fluctuations of BYDV-PAV, BYDV-MAV, and CYDV-RPV in aphids and grasses were analyzed in corn in the summer, and wheat and oat plots in the winter in Coxilha, RS, Brazil. Among the aphids collected, 12.7% transmitted B/CYDV, and 92.6% of those aphids were Rhopalosiphum padi while 7.4% were Sitobion avenae. The viruses that R. padi transmitted were BYDV-PAV (95.4%), CYDV-RPV (2.3%), and BYDV-MAV+PAV (2.3%), while S. avenae only transmitted BYDV-PAV. Among the wheat and oat plants collected, 65.8% were seropositive, all of which were infected with BYDV-PAV and 0.7% of which were also infected with BYDV-MAV. The population dynamics of the virus was similar in aphids and plants, with peaks in the winter crop season. The 35 isolates of BYDV-PAV analyzed were able to infect wheat and oat, being transmitted by R. padi (EF=94.4%), S. avenae (EF=76.1%), and M. dirhodum (EF=63.4%). They were not transmitted by S. graminum or S. maydis. Since several common vector species efficiently transmit BYDV-PAV, this may explain why it is the dominant virus species in the "yellow dwarf pathosystem" in Southern Brazil.Sociedade Brasileira de Fitopatologia2013-02-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1982-56762013000100002Tropical Plant Pathology v.38 n.1 2013reponame:Tropical plant pathology (Online)instname:Sociedade Brasileira de Fitopatologiainstacron:SBF10.1590/S1982-56762013000100002info:eu-repo/semantics/openAccessParizoto,GabrielaRebonatto,AdrianeSchons,JuremaLau,Douglaseng2013-01-18T00:00:00Zoai:scielo:S1982-56762013000100002Revistahttps://www.scielo.br/j/tpp/ONGhttps://old.scielo.br/oai/scielo-oai.phpsbf-revista@ufla.br1983-20521982-5676opendoar:2013-01-18T00:00Tropical plant pathology (Online) - Sociedade Brasileira de Fitopatologiafalse |
dc.title.none.fl_str_mv |
Barley yellow dwarf virus-PAV in Brazil: seasonal fluctuation and biological characteristics |
title |
Barley yellow dwarf virus-PAV in Brazil: seasonal fluctuation and biological characteristics |
spellingShingle |
Barley yellow dwarf virus-PAV in Brazil: seasonal fluctuation and biological characteristics Parizoto,Gabriela Luteoviridae aphids BYDV CYDV |
title_short |
Barley yellow dwarf virus-PAV in Brazil: seasonal fluctuation and biological characteristics |
title_full |
Barley yellow dwarf virus-PAV in Brazil: seasonal fluctuation and biological characteristics |
title_fullStr |
Barley yellow dwarf virus-PAV in Brazil: seasonal fluctuation and biological characteristics |
title_full_unstemmed |
Barley yellow dwarf virus-PAV in Brazil: seasonal fluctuation and biological characteristics |
title_sort |
Barley yellow dwarf virus-PAV in Brazil: seasonal fluctuation and biological characteristics |
author |
Parizoto,Gabriela |
author_facet |
Parizoto,Gabriela Rebonatto,Adriane Schons,Jurema Lau,Douglas |
author_role |
author |
author2 |
Rebonatto,Adriane Schons,Jurema Lau,Douglas |
author2_role |
author author author |
dc.contributor.author.fl_str_mv |
Parizoto,Gabriela Rebonatto,Adriane Schons,Jurema Lau,Douglas |
dc.subject.por.fl_str_mv |
Luteoviridae aphids BYDV CYDV |
topic |
Luteoviridae aphids BYDV CYDV |
description |
The yellow dwarf disease in winter cereal crops is caused by species of Barley yellow dwarf virus (BYDV) and Cereal yellow dwarf virus (CYDV) (Luteoviridae). These viruses are transmitted to grasses (Poaceae) by aphids (Aphididae) and the frequency of virus population is affected by oscillations in the vector and host populations. Seasonal fluctuations of BYDV-PAV, BYDV-MAV, and CYDV-RPV in aphids and grasses were analyzed in corn in the summer, and wheat and oat plots in the winter in Coxilha, RS, Brazil. Among the aphids collected, 12.7% transmitted B/CYDV, and 92.6% of those aphids were Rhopalosiphum padi while 7.4% were Sitobion avenae. The viruses that R. padi transmitted were BYDV-PAV (95.4%), CYDV-RPV (2.3%), and BYDV-MAV+PAV (2.3%), while S. avenae only transmitted BYDV-PAV. Among the wheat and oat plants collected, 65.8% were seropositive, all of which were infected with BYDV-PAV and 0.7% of which were also infected with BYDV-MAV. The population dynamics of the virus was similar in aphids and plants, with peaks in the winter crop season. The 35 isolates of BYDV-PAV analyzed were able to infect wheat and oat, being transmitted by R. padi (EF=94.4%), S. avenae (EF=76.1%), and M. dirhodum (EF=63.4%). They were not transmitted by S. graminum or S. maydis. Since several common vector species efficiently transmit BYDV-PAV, this may explain why it is the dominant virus species in the "yellow dwarf pathosystem" in Southern Brazil. |
publishDate |
2013 |
dc.date.none.fl_str_mv |
2013-02-01 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1982-56762013000100002 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1982-56762013000100002 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/S1982-56762013000100002 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
text/html |
dc.publisher.none.fl_str_mv |
Sociedade Brasileira de Fitopatologia |
publisher.none.fl_str_mv |
Sociedade Brasileira de Fitopatologia |
dc.source.none.fl_str_mv |
Tropical Plant Pathology v.38 n.1 2013 reponame:Tropical plant pathology (Online) instname:Sociedade Brasileira de Fitopatologia instacron:SBF |
instname_str |
Sociedade Brasileira de Fitopatologia |
instacron_str |
SBF |
institution |
SBF |
reponame_str |
Tropical plant pathology (Online) |
collection |
Tropical plant pathology (Online) |
repository.name.fl_str_mv |
Tropical plant pathology (Online) - Sociedade Brasileira de Fitopatologia |
repository.mail.fl_str_mv |
sbf-revista@ufla.br |
_version_ |
1754824585939779584 |