A5079015337- Plant Disease Resistance and Genetics
- Research in Social Sciences
- Plant Pathogens and Resistance
- Plant Virus Research Studies
- Insect-Plant Interactions and Control
- Plant-Microbe Interactions and Immunity
- Plant Disease Management Techniques
- Plant Pathogens and Fungal Diseases
- Forest Ecology and Biodiversity Studies
- Plant Pathogenic Bacteria Studies
- Agricultural Economics and Policy
- Nematode management and characterization studies
- Potato Plant Research
- Agricultural pest management studies
- Forest Insect Ecology and Management
- Agriculture, Plant Science, Crop Management
- Genetic and Environmental Crop Studies
- Forest Management and Policy
- Assembly Line Balancing Optimization
- Powdery Mildew Fungal Diseases
- Legume Nitrogen Fixing Symbiosis
- Organic Food and Agriculture
- Garlic and Onion Studies
- Plant Physiology and Cultivation Studies
- Wikis in Education and Collaboration
Natural Resources Institute Finland
2016-2021
University of Oulu
2012-2018
University of Helsinki
2005-2016
Agrifood Research Finland
2008-2014
University of Warwick
2002
Aims: To test interactions between pathogenic strains of Streptomyces turgidiscabies, S. scabies and aureofaciens. study biological control turgidiscabies using the nonpathogenic strain (346) isolated from a scab lesion commercially available biocontrol agent (S. griseoviridis K61; 'Mycostop'). Methods Results: Pathogenic aureofaciens inhibited growth in vitro, whereas 346 were subsequently tested for greenhouse field. Strains K61 suppressed development common disease caused by greenhouse....
The development of UAV (unmanned aerial vehicle) imaging technologies for precision farming applications is rapid, and new studies are published frequently. In cases where measurements based on imaging, there the need to have ground truth or reference data in order develop reliable applications. However, several use such as pests, weeds, diseases detection, can be subjective relatively difficult capture. Furthermore, collection usually laborious time consuming. It also appears that it...
Summary A glasshouse experiment was conducted to study the responses Streptomyces scabies and S. turgidiscabies in potato cultivars Bellona, Matilda Sabina ( Solanum tuberosum ). Potatoes were grown a peat‐sand mixture inoculated with one of two strains either or turgidiscabies. Logit models used analyse data on disease incidence severity, whereas emergence yield tested by analysis variance. , recently described pathogen Finland, possessed high ability cause superficial, raised pitted...
Summary Cavity spot disease of carrot ( Daucus carota ) has been one the intractable problems for both growers and scientists. Carrots are rejected at grading with or two visible lesions, when incidence passes a relatively low threshold it becomes uneconomic to harvest crops. For scientist, there considerable pressure produce information on cause cure. Many putative causes have advanced over years, but these were almost always contradicted by subsequent work. The first solid indication...
Potato virus Y (PVY, genus Potyvirus, family Potyviridae) is transmitted non-persistently by aphids. It causes major losses in potato production (Solanum tuberosum), especially following seed tuber-borne infection of plants. To limit the risk PVY infection, located preferably regions where vector pressure low. The northern-most high-grade area (HG zone) Europe Finland. aim this study was to determine incidence aphid species with documented ability transmit and use a modelling approach their...
Disease suppressive soils are important for managing soil-borne diseases that cannot be controlled with chemicals. One such disease is the potato common scab caused by Streptomyces species. Suppressiveness against can develop spontaneously in fields where grown years without interruption, and this has been attributed to non-pathogenic strains. spp. have used as inoculants biological control, but their long-term effects gained less attention. In our previous studies, a strain (Str272)...
Plant-pathogenic Streptomyces species produce a variety of different phytotoxic 4-nitroindol-3-yl-containing 2,5-dioxopiperazines (thaxtomins) that induce scab symptoms on potato tubers (Solanum tuberosum). The possible mutual synergistic or antagonistic effects thaxtomins are unknown. Modified methodology using column chromatography allowed the purification thaxtomin A in large quantities (27 mg, HPLC purity 97%). Thaxtomin ortho isomer, B, and C-14 deoxythaxtomin B (thaxtomin D) were also...
Background The species diversity of aphids and seasonal timing their flight activity can have significant impacts on crop production, as aphid differ in ability to transmit plant viruses affects virus epidemiology. aim the study was characterise composition phenology fauna Finland one northernmost intensive production areas world (latitude 64°). Methodology/Principal Findings Flight monitored four growing seasons (2007–010) using yellow pan traps (YPTs) placed 4–8 seed potato fields a...
Common scab is one of the most important soil‐borne diseases potato and difficult to control. Selection breeding lines for resistance common also cumbersome due environmental factors influencing symptom development an erratic spatial distribution pathogens ( Streptomyces spp.) in field. The bacterial phytotoxin thaxtomin A, which causes symptoms, can be used screen large numbers seedlings tolerance vitro , but few studies have investigated whether results correspond observed In this study,...
Potato common scab caused by several Streptomyces spp. is an important disease with no effective methods of control. Suppressiveness against can develop in soil as a result long-term potato monoculture and has been associated nonpathogenic To determine whether the development suppressiveness could be enhanced, effect repeated applications antagonistic strain on was investigated field trial over 5 years. 272 applied annually at planting consistently suppressed symptoms. On scab-susceptible...
Common scab is an important disease in potato (Solanum tuberosum) caused by Streptomyces spp. In Finland, morphological and physiological characterization (5) comparison of the 16S rRNA gene sequences have suggested that scabies S. turgidiscabies are main causal species (2), but occurrence europaeiscabiei has not been previously studied. September 2011, tubers cvs. Fambo, Melody, Puikula, Rosamunda, Victoria, Van Gogh showing symptoms common were collected from 10 fields southern (Lammi),...