Plant chitinases are potent inhibitors of fungal growth View Full Text


Ontology type: schema:ScholarlyArticle     


Article Info

DATE

1986-11-01

AUTHORS

Angela Schlumbaum, Felix Mauch, Urs Vögeli, Thomas Boller

ABSTRACT

The antimicrobial arsenal of plants is thought to consist mainly of secondary metabolites, among which the phytoalexins are the best-studied1–3. But plants may also possess antimicrobial proteins4,5: it has been reported that wheat-germ agglutinin, a chitin-binding lectin from wheat embryos, inhibits growth of the fungus Trichoderma viride4. This has led to the notion that plant lectins, with their intriguing biochemical similarity to animal antibodies, have an antibody-like antimicrobial function4,6,7. We report here that the main proteinaceous inhibitor of fungal growth in bean leaves is chitinase, an enzyme that can be induced by the plant hormone ethylene, or by pathogen attack. Among commercial preparations of purified chitin-binding lectins (from wheat germ, tomato, potato, pokeweed and gorse), only those containing contaminating chitinase activity inhibit fungal growth. Our data indicate that plant chitinases, but not chitin-binding lectins, are important antifungal proteins in plants. More... »

PAGES

365-367

Identifiers

URI

http://scigraph.springernature.com/pub.10.1038/324365a0

DOI

http://dx.doi.org/10.1038/324365a0

DIMENSIONS

https://app.dimensions.ai/details/publication/pub.1013176934


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