Bis-naphthopyrone pigments protect filamentous ascomycetes from a wide range of predators
artículo original
Fecha
2019-08-08Autor
Xu, Yang
Viñas Meneses, María
Alsarrag, Albatol
Su, Ling
Pfohl, Katharina
Rohlfs, Marco
Schäfer, Wilhelm
Chen, Wei
Karlovsky, Petr
Metadatos
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It is thought that fungi protect themselves from predation by the production of compounds
that are toxic to soil-dwelling animals. Here, we show that a nontoxic pigment, the bisnaphthopyrone
aurofusarin, protects Fusarium fungi from a wide range of animal predators.
We find that springtails (primitive hexapods), woodlice (crustaceans), and mealworms
(insects) prefer feeding on fungi with disrupted aurofusarin synthesis, and mealworms and
springtails are repelled by wheat flour amended with the fungal bis-naphthopyrones aurofusarin,
viomellein, or xanthomegnin. Predation stimulates aurofusarin synthesis in several
Fusarium species and viomellein synthesis in Aspergillus ochraceus. Aurofusarin displays low
toxicity in mealworms, springtails, isopods, Drosophila, and insect cells, contradicting
the common view that fungal defence metabolites are toxic. Our results indicate that bisnaphthopyrones
are defence compounds that protect filamentous ascomycetes from predators
through a mechanism that does not involve toxicity.
External link to the item
https://doi.org/10.1038/s41467-019-11377-5Colecciones
- Agronomía [1485]