A5066290190- Mycorrhizal Fungi and Plant Interactions
- Fungal Biology and Applications
- Forest Insect Ecology and Management
- Forest Ecology and Biodiversity Studies
- Plant Pathogens and Fungal Diseases
- Plant and fungal interactions
- Plant and Fungal Interactions Research
- Yeasts and Rust Fungi Studies
- Microbial Natural Products and Biosynthesis
- Botany and Plant Ecology Studies
- Plant Disease Resistance and Genetics
- Nuclear Physics and Applications
- Radioactive contamination and transfer
- Plant Molecular Biology Research
- Particle Detector Development and Performance
- Radiation Detection and Scintillator Technologies
- Species Distribution and Climate Change
- Botanical Research and Applications
- Radioactivity and Radon Measurements
- Climate Change Communication and Perception
- Slime Mold and Myxomycetes Research
- Plant Parasitism and Resistance
- Environmental Education and Sustainability
- Legume Nitrogen Fixing Symbiosis
- Horticultural and Viticultural Research
Swedish University of Agricultural Sciences
2010-2023
Uppsala University
2019
Natural Resources Canada
2012
Canadian Forest Service
2012
• Parasitism and saprotrophic wood decay are two fungal strategies fundamental for succession nutrient cycling in forest ecosystems. An opportunity to assess the trade-off between these is provided by pathogen decayer Heterobasidion annosum sensu lato. We report annotated genome sequence transcript profiling, as well quantitative trait loci mapping, of one member species complex: H. irregulare. Quantitative critical pathogenicity, rich transposable elements, orphan secreted genes, were...
Abstract Background Norway spruce [ Picea abies (L.) Karst.] is one of the most important conifer species in Europe. The wood economically and infections by wood-rotting fungi cause substantial losses to industry. first line defence a tree bark. It very efficient barrier against infection based on its mechanical chemical properties. Once an injury or recognized tree, induced defences are activated. In this study we examined transcriptional response, using 454-sequencing, profiles bark trees...
The NAC family of transcription factors is one the largest gene families in plants and conifer at least as large, or possibly larger, Arabidopsis. These control both developmental stress induced processes plants. Yet, NACs controlling has received relatively little attention. This study investigates involved responses to pathogen Heterobasidion annosum (Fr.) Bref. sensu lato. phylogeny domain structure proteins can be used organize functional specificities, several well characterized...
The sooty bark disease (SBD) is an emerging affecting sycamore maple trees ( Acer pseudoplatanus ) in Europe. Cryptostroma corticale , the causal agent, putatively native to eastern North America, can be also pathogenic for humans causing pneumonitis. It was first detected 1945 Europe, with markedly increasing reports since 2000. Pathogen development appears linked heat waves and drought episodes. Here, we analyse conditions of SBD emergence Europe based on a three-decadal time-series data...
Heterobasidion annosum sensu lato is a serious pathogen causing root and stem rot to conifers in the northern hemisphere rendering timber defective for sawing pulping. In this study we applied next-generation sequencing i) identify transcriptional responses unique Heterobasidion-inoculated Norway spruce ii) investigate H. transcripts putative virulence factors. To address these objectives wounded or inoculated 30-year-old clones with 454-sequenced transcriptome of interaction at 0, 5 15 days...
Abstract It is important to improve the understanding of interactions between trees and pathogens integrate this knowledge about disease resistance into tree breeding programs. The conifer Norway spruce ( Picea abies ) an species for forest industry in Europe. Its major pathogen Heterobasidion parviporum , causing stem root rot. In study, we identified 11 QTLs (Quantitative trait loci) that correlate with variation H. a population 466 by association genetics. Individual explained 2.1 5.2%...
The ecology and physiology of ectomycorrhizal (EcM) symbiosis with conifer trees are well documented. In comparison, however, very little is known about the molecular regulation these associations. an earlier study, we identified three EcM-regulated Pinus expressed sequence tags (EST), two which were as homologous to Medicago truncatula nodulin MtN21. third EST was a homologue receptor-like kinase Clavata1. We have characterized expression patterns genes auxin- mycorrhiza-regulated after...
Trees must cope with the attack of multiple pathogens, often simultaneously during their long lifespan. Ironically, genetic and molecular mechanisms controlling this process are poorly understood. The objective study was to compare component resistance in Norway spruce Heterobasidion annosum s.s. its sympatric congener parviporum. root- stem-rot is a major disease caused by members species complex. Resistance both pathogens measured using artificial inoculations half-sib families trees...
Emerging and invasive tree pests pathogens in Europe are increasing number range, having impacts on biodiversity, forest services, ecosystems human well-being. Stakeholders involved management contribute to the detection of new emerging (PnPs). We surveyed different groups stakeholders European countries. The were mainly researchers, health surveyors managers, as well owners, nurseries, policy-makers, advisors, forestry authorities, NGOs civil society. investigated which tools they used...
Common ash (Fraxinus excelsior L.) is a tree species of significant ecological and economic importance that has suffered devastating decline since the 1990s in Europe. Native are being threatened by alien invasive fungus Hymenoscyphus fraxineus, which causes dieback. The main goal study was to develop markers for traits related tolerance dieback investigate whether genotypes selected were genetically different from susceptible wild populations. We phenotyped 326 trees Sweden disease severity...
Infections with Heterobasidion parviporum devalue the Norway spruce timber as decayed wood does not meet necessary quality requirements for sawing. To evaluate incorporation of disease resistance in breeding strategy, an inoculation experiment H. on 2-year-old progenies 466 open-pollinated families was conducted under greenhouse (nursery) conditions. Lesion length phloem (LL), fungal growth sapwood (FG) and (D) were measured average 10 seedlings each family. The genetic variation...
The taxonomically diverse phyllosphere fungi inhabit leaves of plants. Thus, apart from the fungi's dispersal capacities and environmental factors, assembly community associated with a given host plant depends on factors encoded by host's genome. genetic their influence communities under natural conditions are poorly understood, especially in trees. Recent work indicates that Norway spruce (Picea abies) vegetative buds harbour active fungal communities, but these hitherto largely...
Abstract The Heterobasidion annosum s.l species complex comprises the most damaging forest pathogens to Norway spruce. We revisited previously identified Quantitative Trait Loci (QTLs) related -resistance in spruce identify candidate genes associated with these QTLs . 329 resistance using a gene-based composite map for Pinaceae. To evaluate transcriptional responses of H. parviporum, we inoculated plants and sequenced transcriptome interaction at 3 7 days post inoculation. Out 298 expressed...
Citizen science is a term used to describe where the general public involved in scientific research. This article reports on citizen project carried out Sweden during autumn of 2018, 135 secondary school classes (pupils age 13–16) participated by collecting mushrooms, soil samples, and animal droppings. In addition, they prepared samples performed preliminary analyses before submitting their results Uppsala University (UU) Swedish Agricultural Sciences (SLU) for further compilation analysis....
A growing trend in science is that research institutions reach out to members of the public for participating research. The reasons outreach are many, spanning from desire collect and/or analyse large sets data efficiently, idea including general on a very fundamental level science-making and ultimately decision-making. presented project curriculum-based carried 240 lower secondary school classes (pupils age 13-16). task, as designed by universities, mushrooms, soil animal droppings...
Abstract Endophytes are microbial colonizers that reside in plants by symbiotic association produces several biological classes of natural products. The current study focuses on the isolation and characterization bioactive compounds produced endophytic fungi isolated from Himalayan yew ( Taxus wallichiana ) collected Mustang district Nepal. plant materials were Lower-Mustang region month October 2016 artificial media inner tissues bark needles. Antimicrobial antioxidant activity, along with...
Norway spruce [Picea abies (L.) Karst.] is one of the economically most important conifer species in Europe. The major pathogen on Heterobasidion parviporum (Fr.) Niemela & Korhonen. completed genome sequence H. irregulare opens up new possibilities to understand interactions between spp. and spruce. However date there are no sequencing projects genomes available for complementing studies. To achieve a better understanding induced transcriptional defence responses upon attack, we compared...