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Induction of Synthesis of Extracellular Cell-wall Degrading Enzymes in Vascular Wilt Fungi

Abstract

THE vascular wilt fungi Verticillium albo-atrum and Fusarium oxysporum f. sp. lycopersici, pathogenic to tomato plants, are characteristically confined to the vascular elements where they produce substances causing disease symptoms. The identity of these substances is still controversial. Both fungi, however, readily produce in vitro enzymes that degrade various polysaccharide components of plant cell walls and there is evidence that one or more of these enzymes may be implicated in the wilt syndrome. Information already available on enzyme synthesis is contradictory, and so information on factors controlling synthesis of these enzymes may, therefore, contribute to understanding of pathogenesis in vascular wilts.

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COOPER, R., WOOD, R. Induction of Synthesis of Extracellular Cell-wall Degrading Enzymes in Vascular Wilt Fungi. Nature 246, 309–311 (1973). https://doi.org/10.1038/246309a0

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