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説明
Abstract Cytochemical demonstration of the presence of some enzymes and other cell constituents in the epidermal cells of tobacco leaves infected with tobacco mosaic virus was investigated. Changes of some enzyme activities were found in the cells that had crystalline virus inclusions. In inclusion-bearing cells, the activities of adenosine triphosphatase, ribonuclease, nonspecific acid phosphatase, some dehydrogenases, cytochrome oxidase, dopa oxidase, and glucosan phosphorylase decreased, whereas phospholipase activity was activated, as compared with inclusion-free cells from inoculated leaves. No significant differences in activities of nonspecific alkaline phosphatase, 5-nucleotidase, glucose-6-phosphatase, lipase, and aldolase were found between inculsion-bearing and inclusion-free cells. The localization of ribonucleic acid, deoxyribonucleic acid, amino acid components of proteins except sulfhydryl (SH) groups, lipids, and polysaccharides in inclusion-bearing cells was not strikingly different from that in inclusion-free cells. Ferric iron and magnesium, in addition to SH group, were absent in inclusion-bearing cells. The results were interpreted as indicating a decrease of synthetic activities in inclusion-bearing cells.
収録刊行物
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- Virology
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Virology 19 431-440, 1963-04-01
Elsevier BV
