European Journal of Plant Pathology

Journal: European Journal of Plant Pathology

Abbreviation

Eur. j. plant pathol.

Publisher

Springer

ISSN

0929-1873
1573-8469

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Publications 1 - 10 of 34

Incidence and distribution of Heterobasidion and Armillaria and their influence on canopy gap formation in unmanaged mountain pine forests in the Swiss Alps
Bendel, Muriel; Kienast, Felix; Bugmann, Harald; et al. (2006)
European Journal of Plant Pathology
Genetic Structure of the Population of Phytophthora infestans Attacking Solanum ochranthum in the Highlands of Ecuador
Chacón, Maria G.; Adler, N.E.; Jarrin, F.; et al. (2006)
European Journal of Plant Pathology
Thirty-nine isolates of Phytophthora infestans were collected from the wild host Solanum ochranthum in the highland tropics of Ecuador and characterized with a set of phenotypic and molecular markers (mating type, metalaxyl sensitivity, the allozyme loci Gpi, and Pep, mitochondrial DNA haplotype, RFLP, and SSR), as well as for pathogenicity on various hosts. Three groups of isolates (A, B, and C) were identified based on their multilocus genotypes and variable abilities to cause disease on different hosts. Group A had a combination of alleles for the Gpi (86/100), Pep (96/100) and mtDNA (Ia) loci, as well as an RFLP fingerprint, that have not been reported for P. infestans in Ecuador, or elsewhere. Group B shares many marker characteristics with the US-1 lineage described in Ecuador on tomato, pear melon (S. muricatum), and S. caripense, but has SSR alleles not present in typical US-1 isolates. Group C for all markers tested is identical to the EC-1 lineage described on cultivated and wild potatoes in Ecuador. All isolates from S. ochranthum were able to re-infect their host of origin in the detached leaf assay; however, we did not draw clear conclusions as to the relative aggressiveness of the three groups on this host. Isolates of group A were the most specialized and were generally non-pathogenic or weakly pathogenic on all hosts other than S. ochranthum. Groups B and C infected tuber-bearing hosts, including the cultivated potato but were generally non-pathogenic on other non-tuber bearing hosts. Solanum ochranthum was infected by isolates coming from tuber-bearing Solanum hosts (i.e., the EC-1 lineage of P. infestans) and some US-1 isolates from non-tuber bearing hosts. Thus, in nature this species might be a potential reservoir of inoculum of different pathogen populations able to infect the cultivated hosts potato, tomato and pear melon (S.␣muricatum). Unlike potato and tomato in Ecuador, each of which is primarily attacked by a highly specialized pathogen population, S. ochranthum appears to harbour at least three pathogen groups of␣different genetic make-up. The unresolved issue of potential host specificity in isolates found on S.␣ochranthum could complicate efforts to use this species in tomato improvement. © Springer 2006.
Population genetic structure of Mycosphaerella graminicola and Quinone Outside Inhibitor (QoI) resistance in the Czech Republic
Drabesova, Jana; Rysanek, Pavel; Brunner, Patrick; et al. (2013)
European Journal of Plant Pathology
Microsatellite based population structure of Plasmopara viticola at single vine scale
Matasci, Caterina L.; Jermini, Mauro; Gobbin, Davide; et al. (2010)
European Journal of Plant Pathology
Relationship between aggressiveness of Stagonospora sp isolates on field and hedge bindweeds, and in vitro production of fungal metabolites cercosporin, elsinochrome A and leptosphaerodione
Ahonsi, Monday O.; Maurhofer, Monika; Boss, Désirée; et al. (2005)
European Journal of Plant Pathology
Comparison of statistical models in a meta-analysis of fungicide treatments for the control of citrus black spot caused by Phyllosticta citricarpa
Makowski, D.; Vicent, A.; Pautasso, M.; et al. (2014)
European Journal of Plant Pathology
Eight microsatellite markers for Armillaria cepistipes and their transferability to other Armillaria species
Prospero, Simone; Jung, Esther; Tsykun, Tetyana; et al. (2010)
European Journal of Plant Pathology
Detection of the fire blight biocontrol agent Bacillus subtilis BD170 (Biopro®) in a Swiss apple orchard
Broggini, Giovanni; Broggini, Giovanni; Holliger, Ernst; et al. (2005)
European Journal of Plant Pathology
Fire blight, caused by Erwinia amylovora, is a major disease threat to apple, pear and other pome fruit worldwide. The disease is widespread in Europe and has recently become established in Switzerland. Antibiotics are the most effective controls used in North America but these are not permitted for agricultural use in most European countries. A newly registered biological control product Biopro®, based on the antagonist Bacillus subtilis strain BD170, is being used as an alternative strategy for fire blight management. A specific molecular marker was developed for monitoring the spread of this agent on blossoms after Biopro® spray application in a Swiss apple orchard throughout the bloom period for 2years. Direct spraying resulted in efficient primary colonisation of pistils in flowers that were open at the time of treatment. Subsequent bacterial dissemination (secondary colonisation) of flowers that were closed or at bud stage at the time of treatment was observed but was found to be dependent on the timing of treatments relative to bloom stage in the orchard. Foraging honeybees were shown to be disseminators of Biopro®. We also report detection of the biocontrol agent in honey collected from hives where bees were exposed by placing Biopro® at the entrance or in the hatching nest and from hives that were simply placed in sprayed orchards.
Subdivision and genetic structure of four populations of Venturia inaequalis in Switzerland
Tenzer, Isabel; Gessler, Cesare (1997)
European Journal of Plant Pathology
Population structure of the rice sheath blight pathogen Rhizoctonia solani AG-1 IA from India
Linde, Celeste C.; Zala, Marcello; Paulraj, R.S. David; et al. (2005)
European Journal of Plant Pathology

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