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Plant-parasitic nematodes and microfungi inhabit many of the same ecological habitats and interact in almost every conceivable way. Nematodes can feed on fungi, and conversely fungi can use nematodes as a food source. Fungi have been widely studied as biological controls of plant-parasitic nematodes. Fungi can attract or repel nematodes, and nematodes and fungi can interact to either directly or indirectly increase or even decrease plant disease. Nematodes can also feed on fungi and act as biological controls of plant disease. Plant-parasitic nematodes likely obtained the cell wall-degrading enzymes necessary to successfully feed on plants from fungi through horizontal gene transfer. Finally, plant-parasitic nematodes can interact with fungal pathogens or even nonpathogenic or weakly pathogenic fungi to increase plant disease.
Source: James LaMondia and Patricia Timper. 2016. In: Biology of Microfungi. Li, De-Wei (Ed.). http://link.springer.com/
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