Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

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Record number 508932
Title Fibulorhizoctonia psychrophila is the causal agent of lenticel spot on apple and pear fruit in the Netherlands
Author(s) Wenneker, M.; Pham, K.T.K.; Lemmers, M.E.C.; Boer, F.A. de; Leeuwen, P.J. van; Hollinger, T.C.; Geijn, F.G. van de; Thomma, B.P.H.J.
Source European Journal of Plant Pathology (2016). - ISSN 0929-1873 - 5 p.
DOI http://dx.doi.org/10.1007/s10658-016-1061-0
Department(s) PPO BBF Team Randwijk
PPO BBF Team Lisse
WUR GTB Gewasgezondheid
IMARES Vis
FBR Post Harvest Technology
Laboratory of Phytopathology
EPS
Publication type Refereed Article in a scientific journal
Publication year 2016
Keyword(s) Athelia - Postharvest
Abstract

In a survey for postharvest diseases of apples and pears in the Netherlands, an unknown postharvest fruit rot was observed. The disease appeared to originate from infected lenticels. A fungus was consistently isolated from the decayed fruits. The fungal pathogen was isolated on potato dextrose agar, and at low temperatures development of a fast-growing whitish mycelium was observed. Growth of this fungus was observed between 1 and 20 °C with an optimum at 15 °C, while incubation of mycelium at 25 °C resulted in no growth. The isolates did not produce asexual or sexual spores. The isolates were characterized and identified by morphology and molecular phylogenetic analysis. Genomic DNA was isolated and amplified using ITS1-ITS4, EF1 and RPB2 primers, and BLAST searches in GenBank placed the fungus taxonomically in the genus Fibulorhizoctonia, with the highest matches to F. psychrophila. Pathogenicity of representative isolates from apple and pear fruit was confirmed under laboratory conditions. To the best of our knowledge this is the first report of F. psychrophila causing lenticel spot on apple and pear, and also the cause of a whitish mould on storage bins.

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