Summary
This is the third paper of the series dealing with beet yellows virus infection ofTetragonia expansa Murr. It concerns the different kinds of aggregates of virus and the state of the virus particles in the different cells. In vascular parenchyma cells, the aggregates of virus are variable but are consistently intermingled with host cell components. In the sieve elements, the virus may fill the cell lumen solidly either without obvious order or in stacks of layers each as wide as the particle is long. The virus particles appear to be commonly disorganizing in parenchyma cells with degenerating protoplasts and in sieve elements solidly packed with virus. The factors possibly determining the conformation of viruses in plant cells and the terminological problems regarding designations of aggregates of virus particles and other products appearing in infected cells are discussed.
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This work was supported in part by National Science Foundation grant GB-5506.
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Esau, K., Hoefert, L.L. Cytology of beet yellows virus infection inTetragonia . Protoplasma 73, 51–65 (1971). https://doi.org/10.1007/BF01286411
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DOI: https://doi.org/10.1007/BF01286411