Natural infection of Alternanthera tenella (Amaranthaceae) by a new potyvirus.
A virus was isolated from joyweed (Alternanthera tenella Colla-Amaranthaceae), a common weed in tropical and sub-tropical regions. Examination by electron microscopy showed long flexuous particles with an average length of 756 nm in crude sap. Serological results showed positive reaction with antisera to PVY-O. A fragment of 1772 nucleotides was sequenced. The CP sequence shares 76% of identity with the CP of Potato virus Y strain NTN. These results confirm that the virus is a new potyvirus infecting A. tenella, and the name Alternanthera mild mosaic virus (AltMMV) is proposed.
Embrapa Soja, Londrina, PR, Brazil. amra@cnpso.embrapa.br
A M R
AM
Almeida
C Y
CY
Fukushigue
F
F
Sartori
E
E
Binneck
S R R
SR
Marin
A K
AK
Inoue-Nagata
C M
CM
Chagas
E R
ER
Souto
T
T
Mituti
D020413:3' Untranslated Regions / Q000235:genetics; D027703:Amaranthaceae / Q000469:parasitology / Q000821:virology*; D000818:Animals; D001042:Aphids / Q000821:virology; D036022:Capsid Proteins / Q000235:genetics / Q000276:immunology; D008854:Microscopy, Electron; D008969:Molecular Sequence Data; D010935:Plant Diseases / Q000821:virology*; D017800:Potyvirus / Q000145:classification* / Q000235:genetics / Q000502:physiology / Q000648:ultrastructure; D011817:Rabbits; D017422:Sequence Analysis, DNA; D014771:Virion / Q000648:ultrastructure
D020413:3' Untranslated Regions; D036022:Capsid Proteins