caa a22 4500 467929157 CHVBK 20180406152938.0 cr unu---uuuuu 170328e20060301xx s 000 0 eng 10.1007/s10658-005-5282-x doi (NATIONALLICENCE)springer-10.1007/s10658-005-5282-x Gnomonia fragariae , a Cause of Strawberry Root Rot and Petiole Blight [Elektronische Daten] [Inga Morocko, Jamshid Fatehi, Berndt Gerhardson] Gnomonia fragariae has been occasionally listed among the fungi associated with diseased strawberry plants. However its pathogenicity has not been established. During the investigation on strawberry decline in Latvia and Sweden, a fungus was repeatedly recovered from discoloured root and crown tissues of severely stunted plants. Attempts to induce sporulation of the isolates grown on several agar media resulted in the formation of mature ascomata only on potato carrot agar and oatmeal agar. On morphological grounds and comparisons with reference herbarium specimens these isolates were identified as Gnomonia fragariae. The pathogenicity of the fungus was evaluated initially in the detached leaf assay and subsequently in three bioassays on strawberry plants. All the bioassays showed that G. fragariae was pathogenic on strawberry and capable of causing severe root rot and petiole blight. The symptoms that developed in the greenhouse experiments closely resembled those observed in the fields. The fungus did not cause rapid plant death but growth and development of inoculated strawberry plants was severely affected. To our knowledge this is the first time when pathogenicity of G. fragariae as a root rot pathogen has been clearly established. Our study shows that G. fragariae is one of the serious pathogens involved in the root rot complex of strawberry in Latvia and Sweden. Springer, 2006 Gnomonia comari nationallicence morphology nationallicence pathogenicity nationallicence Morocko Inga Department of Plant Biology & Protection, Latvia University of Agriculture, Liela street 2, LV-3001, Jelgava, Latvia aut Fatehi Jamshid MASE Laboratories AB, Box 148, S-751 04, Uppsala, Sweden aut Gerhardson Berndt MASE Laboratories AB, Box 148, S-751 04, Uppsala, Sweden aut European Journal of Plant Pathology Kluwer Academic Publishers 114/3(2006-03-01), 235-244 0929-1873 114:3<235 2006 114 10658 https://doi.org/10.1007/s10658-005-5282-x text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10658-005-5282-x text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Morocko Inga Department of Plant Biology & Protection, Latvia University of Agriculture, Liela street 2, LV-3001, Jelgava, Latvia aut NATIONALLICENCE 700 1- Fatehi Jamshid MASE Laboratories AB, Box 148, S-751 04, Uppsala, Sweden aut NATIONALLICENCE 700 1- Gerhardson Berndt MASE Laboratories AB, Box 148, S-751 04, Uppsala, Sweden aut NATIONALLICENCE 773 0- European Journal of Plant Pathology Kluwer Academic Publishers 114/3(2006-03-01), 235-244 0929-1873 114:3<235 2006 114 10658 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer