Summary
The nematodesTrichostrongylus colubriformis (J3),Ditylenchus dipsaci (J4) andPanagrellus silusae (adults) are freezing-susceptible but can avoid freezing by supercooling. Their mean supercooling points were −30.0±0.7°C forT. colubriformis, −21.7±0.7°C forD. dipsaci and −20.7±0.84°C forP. silusae. T. colubriformis andD. dipsaci could prevent seeding by external ice butP. silusae could not. The glycerol concentrations of these nematodes are considered to be too low to have a significant antifreeze effect.
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Abbreviations
- J3 :
-
3rd-stage juvenile
- J4 :
-
4th stage juvenile
- SEM:
-
standard error of the mean
- T 50 :
-
50% survival temperature
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Wharton, D.A., Young, S.R. & Barrett, J. Cold tolerance in nematodes. J Comp Physiol B 154, 73–77 (1984). https://doi.org/10.1007/BF00683218
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DOI: https://doi.org/10.1007/BF00683218