The production of nematode-immobilizing secretory cells by Climacodon septentrionalis |
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Authors: | Joey B Tanney Leonard J Hutchison |
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Institution: | (1) Faculty of Natural Resources Management, Lakehead University, Thunder Bay, ON, P7B 5E1, Canada |
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Abstract: | The ability of Climacodon septentrionalis to immobilize and kill a mycophagous nematode (Aphelenchoides sp.) in vitro is described for the first time. Two isolates produced droplets (20–45 μm in diameter) that formed at the apices
of tall, stalked, and branching secretory cells (700–1,500 μm tall). On 2% modified malt extract agar, nematodes became enveloped
in the droplets, which restricted their ability to move and resulted in complete immobilization and death within several hours
of contact. The rate of decomposition of the nematodes varied considerably, with most individuals persisting for weeks whereas
others were degraded within several days and appeared to be colonized by dense hyphal growth. This study provides the first
documentation of a non-agaricoid fungus producing secretory cells that are able to immobilize nematodes. |
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Keywords: | Fungivory Mycophagy Secretory cell Wood decay |
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