The influence of saprophytic competition on nematode predation by nematode-trapping fungi |
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| Institution: | 1. Department of Molecular Biosciences, School of Veterinary Medicine, University of California, Davis, 1089 Veterinary Medicine Drive, Davis, CA, 95616, USA;2. Department of Entomology and Nematology, and UCD Comprehensive Cancer Center, University of California, Davis, One Shields Avenue, Davis, CA 95616, USA |
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| Abstract: | Competivive stress imposed by common soil saprophytes may cause an increase in predation by the nematode-trapping fungi, Arthrobotrys oligospora and Monacrosporium cionopagum, on the bacteria-feeding nematode Acrobeloides buetschli. Nematode-trapping species grown with saprophytic competitors in an artificial soil substrate increased their trapping activity compared to control cultures. The results support the hypothesis that competition stimulates the predatory activity of nematode-trapping fungi as an adaptation to overcome their low competitive saprophytic ability. |
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