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      Morfologia do vírus do mosaico do picão Translated title: Morphology of the bidens mosaic virus particle

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          Abstract

          Preparações feitas com exsudato de plantas de fumo, girassol, picão, erva--de-Santa-Maria, cordão-de-frade, fedegoso. Chenopodium amaranticolor e Physalis floridana, sadias e infectadas pelo vínis do mosaico do picão, foram examinadas ao microscópio electrônico. Partículas com comprimento normal aproximado de 720 mm x 12-13 mm, foram encontradas nos exsudatos das oito espécies, quando afetadas, mas não nos das plantas sadias, testemunhas. Tais partículas são consideradas como sendo o vírus causador do mosaico do picão.

          Translated abstract

          Electron microscopical observations were made on exudates obtained from plants of Bidrus pilosa, Chenopodium amaranticolor Leonolis nepaetifolia, Helianthus annums. Nicotiana tabucum, Cassia occidentalis, Chenopodium ambrosioides, and Physalis floridona infected with a virus that induces mosaic on the first named species. The presenes of a flexible thread with a normal length 720 mm. x 12-13 mm was recorded in the exudates from the: diseased plants, but not in those from the healthy ones, and is considered to represent the causal virus.

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          Separation and Properties of Particles of Tobacco Rattle Virus with Different Lengths

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            Über die Korrelation zwischen Partikellänge und Infektiosität beim Vergilbungsvirus der Rüben

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              Elektronenmikroskopische Untersuchungen über Kartoffel-Viren: III. Vermessungen an Teilchen des Kartoffel-Y-Virus

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                Author and article information

                Contributors
                Role: ND
                Role: ND
                Role: ND
                Journal
                brag
                Bragantia
                Bragantia
                Instituto Agronômico de Campinas (Campinas )
                1678-4499
                1961
                : 20
                : unico
                : 503-512
                Affiliations
                [1 ] Instituto Agronômico Brazil
                Article
                S0006-87051961000100013
                10.1590/S0006-87051961000100013
                3f04f21c-5558-4836-961d-f907e6d7b7f2

                http://creativecommons.org/licenses/by/4.0/

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                SciELO Brazil

                Self URI (journal page): http://www.scielo.br/scielo.php?script=sci_serial&pid=0006-8705&lng=en
                Categories
                AGRICULTURE, MULTIDISCIPLINARY

                General agriculture
                General agriculture

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