Abstract
THE presence of enzymes belonging to the pectic group of enzymes has been demonstrated in a large variety of plant pathogenic organisms. The existence of such hydrolytic enzymes has been shown in culture filtrates of many pathogenic moulds, the enzymes being isolated from those filtrates and their toxic effect on plants demonstrated1. A degradation of the pectic material of the cell wall, principal site of attack of these enzymes, could bring about wilting. It thus appears that the formation of pectic enzymes may play an important part in producing the wilting symptoms of many plant diseases.
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References
Gothoskar, S. S., Scheffer, R. P., Walker, J. C., and Stahmann, M. A., Phytopath., 45, 381 (1955).
Leal, J. A., and Villanueva, J. R., Science, 136, 715 (1962).
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Strider, D. L., and Winstead, N. N., Phytopath., 51, 765 (1961).
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LEAL, J., VILLANUEVA, J. Lack of Pectic Enzyme Production by Non-Pathogenic Species of Verticillium. Nature 195, 1328–1329 (1962). https://doi.org/10.1038/1951328a0
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DOI: https://doi.org/10.1038/1951328a0
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