Plant disease complexes are a playground to investigate coinfections in natural or cultivated systems. Pathogens of such complexes may affect each other through direct and/or indirect interactions and lead to changes in virulence or aggressiveness, offspring production and transmission. As coinfections by sympatric host‐pathogens can strongly influence pathogens dynamics and their evolutionary trajectories

Many of the root‐knot nematode (RKN) species (Meloidogyne spp.) are polyphagous, and cultivated tomato (Solanum lycopersicum L.) plants are one of their preferential hosts, leading to significant yield and quality losses. It is well established that the dominant Mi‐1.2 gene confers resistance in tomato to the three most important RKN species – M. incognita, M. javanica, and M. arenaria and minor species

In order to better understand the Phytophthora infestans population structure in South Korea, 172 isolates were collected between 2009 and 2016 from four major potato cultivation areas. Fungicide (metalaxyl and dimethomorph) response, mating type, and SSR genetic fingerprint were analyzed to characterize these isolates. Ten isolates collected in Gyeongnam Province, which specializes in protected winter

Acidovorax citrulli is a seed‐transmitted Gram‐negative bacterium that can cause substantial economic yield loss in watermelon and melon production worldwide. Four small molecule compound libraries containing 4,952 compounds were selected for high throughput screening against A. citrulli wild‐type strain Xu3‐14 by growth inhibition evaluation. One hundred twenty‐seven molecules (2.5% hit rate) were

Fusarium fujikuroi, the causative agent of bakanae disease in rice, produces many kinds of secondary metabolites. Recently, two phylogenetic subgroups (G‐ and F‐ groups) of Japanese F. fujikuroi have been identified and found to have differences in their gibberellin (GA) and fumonisin production. G‐group F. fujikuroi produces large amounts of GA, but is a fumonisin non‐producer. Interestingly, F‐group

Nitrogen metabolism is important for physiological processes during normal growth and development, as well as plant defence responses. Second‐stage juveniles of the cyst nematode Heterodera schachtii penetrate into the root and initiate permanent feeding sites called syncytia, from which they draw all necessary nutrients. To unravel whether the cyst nematode infestation changes nitrogen metabolism

Apple scab is one of the most economically important diseases of apples worldwide. The disease is caused by the haploid ascomycete Venturia inaequalis. Growing apples in cultivar mixtures may reduce disease severity. To determine how the pathogen population structure is affected by host mixtures we studied 24 V. inaequalis isolates sampled from three different apple cultivars (Bramley, Cox, and Worcester)

From 1988 to July 2019 more than 100 review articles were published, including opinion papers and book chapters, that focused on potential climate change effects on plant pathogens and the future crop disease risks. Therefore, an overview of them is presented herein, particularly helpful for beginners and non‐experts in climate change biology research. Specifically, this overview contributes to a faster

Phaeomoniella chlamydospora and wood‐rotting basidiomycete fungi, namely Fomitiporia spp., are known esca pathogens. However, the effect of their mixed infections and the sequence of infection on disease development is unclear. To determine the effects of single and co‐inoculations on symptoms, potted Vitis vinifera ‘Crimson Seedless’ was inoculated with P. chlamydospora either alone or in combination

Rice blast, caused by the fungus Magnaporthe oryzae, can result in notable yield losses in rice production. The objective of this study was to investigate the potential of a rice endophytic isolate, Streptomyces albidoflavus OsiLf‐2, on the control of rice blast and the possible mechanisms involved. In vitro assays displayed a variety of antagonistic effects of OsiLf‐2 against different physiological

The application of disinfectants through drip irrigation could be a feasible practice against verticillium wilt (Verticillium dahliae) of olive. OX‐VIRIN (activated peroxide) and OX‐AGUA AL25 (quaternary ammonium compounds) are two disinfectants that have shown efficacy against V. dahliae in irrigation water and potential for reducing the disease in young olive plants. In this work, various post‐planting

Alternative hosts of Spongospora subterranea may allow multiplication and survival of the pathogen over time; thus, host range is important from an epidemiological aspect. Weeds and rotational crops, such as wheat and barley, were sampled from potato fields with a history of powdery scab (PS) and examined for the presence of S. subterranea by root staining followed by microscopic observations and by