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Electron microscopy of cell wall thickening in local lesions of potato virus-M infected Red Kidney bean

By: Contributor(s): Material type: ArticleArticleLanguage: English Description: 61(7):862-868Subject(s): LOC classification:
  • 2858
In: PhytopathologySummary: Las hojas primordiales del frijol (Phaseolus vulgaris var. Red Kidney) se inocularon mecanicamente con un aislamiento Alberta (AP- 1) del virus M de la papa. Ocho dias despues de la inoculacion, las lesiones locales se examinaron en el microscopio electronico. En cortes delgados de las lesiones locales se observo un engrosamiento anormal en la parte interna de la pared celular secundaria. El engrosamiento se inicio en celulas de la periferia en las areas necroticas de la lesion. Con frecuencia se encontro un engrosamiento de 5 veces o mas de la pared celular normal en los estados de desarrollo avanzados en estas celulas, las cuales tambien mostraron particulas individuales del virus. Se describen varios estados de desarrollo del engrosamiento y se discute la importancia del engrosamiento de la pared celular en el movimiento del virus de una celula a otra. (RA-CIAT)Summary: The primary leaves of beans (Phaseolus vulgaris var. Red Kidney) were mechanically inoculated with an Alberta isolate (AP-1) of potato virus M. local lesions were sampled for electron microscopy 8 days after inoculation. Thin sections of local lesions revealed an abnormal thickening in the inner portion of secondary cell wall. Thickening was initiated in those cells at the periphery of the necrotic area in the lesion. In these cells, thickening of 5 times or more the normal cell wall was not uncommon in the late stage of development. These cells also showed individual virus particles. Various developmental stages of the thickening are described, and the significance of cell wall thickening to cell-to- cell movement of the virus is discussed. (AS)
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Journal Article Journal Article CIAT Library Document collection CINFOS Document Collection CINFOS 2858 (Browse shelf(Opens below)) c.1 Short Loan 100030833
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Las hojas primordiales del frijol (Phaseolus vulgaris var. Red Kidney) se inocularon mecanicamente con un aislamiento Alberta (AP- 1) del virus M de la papa. Ocho dias despues de la inoculacion, las lesiones locales se examinaron en el microscopio electronico. En cortes delgados de las lesiones locales se observo un engrosamiento anormal en la parte interna de la pared celular secundaria. El engrosamiento se inicio en celulas de la periferia en las areas necroticas de la lesion. Con frecuencia se encontro un engrosamiento de 5 veces o mas de la pared celular normal en los estados de desarrollo avanzados en estas celulas, las cuales tambien mostraron particulas individuales del virus. Se describen varios estados de desarrollo del engrosamiento y se discute la importancia del engrosamiento de la pared celular en el movimiento del virus de una celula a otra. (RA-CIAT) spa

The primary leaves of beans (Phaseolus vulgaris var. Red Kidney) were mechanically inoculated with an Alberta isolate (AP-1) of potato virus M. local lesions were sampled for electron microscopy 8 days after inoculation. Thin sections of local lesions revealed an abnormal thickening in the inner portion of secondary cell wall. Thickening was initiated in those cells at the periphery of the necrotic area in the lesion. In these cells, thickening of 5 times or more the normal cell wall was not uncommon in the late stage of development. These cells also showed individual virus particles. Various developmental stages of the thickening are described, and the significance of cell wall thickening to cell-to- cell movement of the virus is discussed. (AS) eng

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