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''Alternanthera mosaic virus (AltMV)'' is a plant pathogenic virus. AltMV belongs to the virus genus ''Potexvirus'' and the virus family ''Alphaflexiviridae''. AltMV was first identified in 1999 in Queensland, Australia. The virus was found in ''Alternanthera pugens'' ''(Amaranthaceae)'', a weed found in both the southern USA and Australia. Since then, AltMV has been identified in various ornamental plants in Italy, the United States (Maryland and Pennsylvania, Florida, and New York), and Brazil.〔Duarte et al. Plant Dis. in review〕 This virus has a close serological relationship (ELISA/antiserum to the capsid protein) with another well known ''Potexvirus'' called ''Papaya mosaic virus'' (PapMV). This relationship has led to several examples of misdiagnosis in the past.〔Eshenaur, B.C., V.E. Jarlfors, K.A. Kelly and J. O'Mara. 1995. Detection of a virus infecting portulaca hybrids in Kentucky and Kansas greenhouses. (Abstract). Proceeds of American Phytopathological Society 85: 1171.〕 Sequencing has shown that the core region of the capsid protein is only 79.8% identical to PapMV at the nucleotide level.〔 Isolates of AltMV have shown a 93-99% nucleotide identity to the original Australian isolate.〔〔〔 ==Host range and symptoms== This virus had been diagnosed in several ornamental plants since its discovery in 1999. These include moss rose (''Portulaca gradiflora''), phlox (''Phlox stolonifera''), skullcap (''Scutellaria'' sp), firecracker plant (''Crossandra infundibuliformis''), angelonia (''Angelonia angustifolia''), ''Torenia'' sp, ''Helichrysum'' sp., and ''Salvia splendens''. Three of these (''Angelonia'', ''Salvia'' and ''Torenia'' sp) showed no obvious symptoms. Host range studies showed this virus can also systemically infect tomatoes (''Lycopersicon esculentum''), faba beans (''Vicia faba''), sunflowers (''Helianthus annuus''), and Zinnias (''Zinnia elegans''). Some cultivars of watermelon (''Citrullus lanatus''), cucumbers (''Cucumis sativus''), and black-eyed peas (''Vigna unguiculata'') also became systemically infected. Many of these plants showed mild symptoms or were asymptomatic. The virus does not seem to infect papaya (''Carica papaya''). ( Symptoms and Inclusions of Alternanthera mosaic virus in ''Scutellaria'' spp. ) ( Symptoms and Inclusions of AlMV in ''Crossandra'' spp. ) 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Alternanthera mosaic virus」の詳細全文を読む スポンサード リンク
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