Forest Pathology (2018) 48 (1 - e12392)

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D. Marciulyniene, K. Davydenko, J. Stenlid, D. Shabunin and M. Cleary (2018)
Fraxinus excelsior seed is not a probable introduction pathway for Hymenoscyphus fraxineus
Forest Pathology 48 (1 - e12392)
Abstract: We investigated the transmission of Hymenoscyphus fraxineus from infested seed to germinating seedlings of common ash (Fraxinus excelsior) in order to determine the potential risk associated with intra- and intercontinental movement of seed. Neither fungal isolations from necrotic or healthy embryos nor PCR testing with H. fraxineus-specific primers detected the pathogen. Similarly, H. fraxineus was not detected in axenically grown seedlings generated from infested seed lots. The results help clear up prior confusion of the pathogen being seed-borne. Any remaining surface contamination by pathogen spores could be washed off seeds as a quarantine measure.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
Link to article at publishers website
Database assignments for author(s): Michelle R. Cleary, Jan Stenlid, Kateryna Davydenko

Research topic(s) for pests/diseases/weeds:
transmission/dispersal of plant diseases
quarantine treatments/regulations/aspects

Pest and/or beneficial records:

Beneficial Pest/Disease/Weed Crop/Product Country Quarant.

Hymenoscyphus fraxineus Ash (Fraxinus) Sweden