European Journal of Plant Pathology

http://link.springer.com/journal/10658

List of Papers (Total 149)

Molecular characterization of the mild Soil-borne wheat mosaic virus-Pol1 isolate

Soil-borne wheat mosaic virus is the causal agent of leaf mosaic symptoms in cereals. The low virulence and limited propagation in infected plant tissues of a Polish isolate (SBWMV-Pol1) differ from the characteristics of other known isolates. The research aimed to clarify the effects of nucleotide sequence variability on the observed biological differences among the following ...

Statistical modeling of long-term grapevine response to ‘Candidatus Phytoplasma solani’ infection in the field

Bois noir (BN) is the most widespread European grapevine yellows disease caused by ‘Candidatus Phytoplasma solani’. Although our knowledge of the mechanisms of interactions of this pathogenic bacteria with host is largely unknown, the plant-pathogen system of BN is commonly used as a model system for studying grapevine yellows diseases. We applied here a conceptual model of general ...

Verticillium wilt caused by Verticillium dahliae in woody plants with emphasis on olive and shade trees

Olive plantations and tree nurseries are economically and ecologically important agricultural sectors. However, Verticillium wilt, caused by Verticillium dahliae Kleb., is a serious problem in olive-growing regions and in tree nurseries worldwide. In this review we describe common and differentiating aspects of Verticillium wilts in some of the main economically woody hosts. The ...

Identification of Xanthomonas species associated with bacterial leaf spot of tomato, capsicum and chilli crops in eastern Australia

Several species of Xanthomonas cause bacterial leaf spot, a disease that affects solanaceous crops worldwide. The diversity of 64 Australian isolates of Xanthomonas spp. associated with bacterial leaf spot in tomato, capsicum and chilli crops in eastern Australia was determined using multi-locus sequence analysis of atpD, dnaK, efp and gyrB genes, species-specific PCR assays and ...

Distribution and persistence of Verticillium dahliae in the xylem of Norway maple and European ash trees

Verticillium dahliae colonizes the xylem vessels of susceptible host plants. Hence it can be expected that the distribution of the fungus as well as disease progress will be influenced by the anatomy of the xylem of that host. Here, we studied the spatial and temporal distribution of V. dahliae in relation to recovery from disease symptoms in young European ash (Fraxinus excelsior) ...

The chemotaxis regulator pilG of Xylella fastidiosa is required for virulence in Vitis vinifera grapevines

Type IV pili of X. fastidiosa are regulated by pilG, a response regulator protein putatively involved in chemotaxis-like operon sensing stimuli through signal transduction pathways. To elucidate the roles of pilG in pathogenicity of X. fastidiosa, the pilG-deletion mutant XfΔpilG and complemented strain XfΔpilG-C were generated. While all strains had similar growth curves in vitro, ...

Screening of alternative products for integrated pest management of cucurbit powdery mildew in Sweden

Cucurbit powdery mildew (CPM) is one of the most important plant protection problems in Swedish cucumber production. CPM fungi have developed resistance to the commonly used fungicide (Imazalil) rendering its current use less effective. We therefore screened a selection of alternative products, evaluating their ability to control CPM in seven small-scale, semi-commercial, ...

Hydrogen sulfide causes excision of a genomic island in Pseudomonas syringae pv. phaseolicola

Hydrogen sulfide (H2S) is known to be an important signalling molecule in both animals and plants, despite its toxic nature. In plants it has been seen to control stomatal apertures, so altering the ability of bacteria to invade plant tissues. Bacteria are known to generate H2S as well as being exposed to plant-generated H2S. During their interaction with plants pathogenic bacteria ...

Detection and characterization of Tomato spotted wilt virus infecting field and greenhouse-grown crops in Zimbabwe

Tomato spotted wilt virus (TSWV), the type species of the genus Tospovirus in the family Bunyaviridae, is one of the most economically important emerging plant viruses worldwide. It causes over US$1 billion losses annually in open field and greenhouse-grown crops. A study was carried out to determine the geographical distribution, host range and phylogeny of TSWV in Zimbabwe. ...

Fast and reliable screening system to preselect candidate Dickeya solani Tn5 mutants in plant tissue-induced genes

Here, we present a simple and fast screening method to preselect candidate Dickeya solani Tn5 mutants which carry transposon insertions in plant tissue-induced genes for the follow-up studies. The described method is faster and cost-effective in comparison to standard IVET, expression microarrays and RNAseq, and it does not require any specialized laboratory equipment and/or ...

The Eurotiomycete Apinisia graminicola as the causal agent of a leaf spot disease on the energy crop Miscanthus x giganteus in Northern Germany

Miscanthus x giganteus is a fast growing, perennial energy crop for temperate climates. Because of its high annual biomass production rates and its characteristics as a low-input crop, an expansion of field cultivation can be anticipated to cover increasing demands for sustainable biomass production. However, knowledge about pathogens that could have an impact on biomass production ...

Phytophthora infestans effector Pi14054 is a novel candidate suppressor of host silencing mechanisms

Phytophthora infestans is the oomycete pathogen responsible for the devastating late blight disease on potato and tomato. It can also infect the model solanaceous plant Nicotiana benthamiana. P. infestans secretes, and translocates into host cells, an array of RxLR class effectors potentially involved in diverse functions that facilitate infection of host plants. Intensive research ...

Subcelullar localization of proteins associated with Prune dwarf virus replication

Prune dwarf virus (PDV) is one of the most dangerous pathogens of fruit trees worldwide. One of the most important proteins required for PDV infection is replicase. (P1 protein) which anchored viral RNA and builds replication complex along with RNA depended polymerase. Despite the importance of PDV as a pathogen, our knowledge regarding tissue/cellular localization and structure of ...

Virulence structure of the Blumeria graminis DC.f. sp. avenae populations occurring in Poland across 2010–2013

The aim of the present study was to determine the virulence structure of powdery mildew of oats (Blumeria graminis DC.f. sp. avena) in Poland in the years 2010–2013. For this purpose, powdery mildew isolates were collected from three experimental stations in Poland. To assess the virulence of the isolates, eight oat varieties with different responses to the pathogen were used. The ...

Fusarium head blight incidence and detection of Fusarium toxins in wheat in relation to agronomic factors

We investigated incidences of Fusarium head blight (FHB) and concentrations of six mycotoxins (deoxynivalenol, nivalenol, 3-acetyldeoxynivalenol, T-2 toxin, HT-2 toxin and zearalenone) in wheat from 2010 to 2013. Field trials were conducted at the Experimental Station of Cultivar Testing in Chrząstowo, Poland (53o11’N, 17o35’E). We examined the effects of four agronomic factors, ...

Occurrence and phylogenetic analysis of allexiviruses identified on garlic from China, Spain and Poland commercially available on the polish retail market

Garlic plants can be infected by different viruses including eight which belong to the genus Allexivirus, family Alphaflexiviridae. The aim of the research conducted was to detect and identify the allexiviruses GarV-A, GarV-B, GarV-C, GarV-D, GarV-X, GarMbFV and ShVX in garlic (Allium sativum L.) bulbs imported into Poland from China and Spain, and those growing in Poland by ELISA ...

Identification of mungbean lines with tolerance or resistance to yellow mosaic in fields in India where different begomovirus species and different Bemisia tabaci cryptic species predominate

Mungbean (Vigna radiata (L.) Wilczek) is an important pulse crop in India. A major constraint for improved productivity is the yield loss caused by mungbean yellow mosaic disease (MYMD). This disease is caused by several begomoviruses which are transmitted by the whitefly Bemisia tabaci (Gennadius) (Hemiptera: Aleyrodidae). The objective of this study was to identify the ...

Genetic variability within Septoria carvi Syd.- a pathogen of caraway Carum carvi L

Genetic variability within Septoria carvi isolates obtained from various organs of caraway cultivated in south-eastern and central Poland was studied using the RAPD-PCR technique. The tests were performed using randomly selected primers. The DNA profiles obtained using four primers proved useful in determining genetic variability among the genotypes of Septoria carvi isolates. The ...

Identification and characterization of Diaporthe vaccinii Shear causing upright dieback and viscid rot of cranberry in Poland

During the summers of 2013–2014, symptoms similar to viscid rot and upright disease were observed on cranberries (Vaccinium macrocarpon) on one plantation in central Poland. The associated fungi were isolated from symptomatic plant tissue. On the basis of morphological and cultural characteristics and the ability of isolated fungi to elicit viscid rot symptoms on cranberry fruits, ...

DON content in oat grains in Norway related to weather conditions at different growth stages

High concentrations of the mycotoxin deoxynivalenol (DON), produced by Fusarium graminearum have occurred frequently in Norwegian oats recently. Early prediction of DON levels is important for farmers, authorities and the Cereal Industry. In this study, the main weather factors influencing mycotoxin accumulation were identified and two models to predict the risk of DON in oat ...