A5026132715- Microbial Community Ecology and Physiology
- Entomopathogenic Microorganisms in Pest Control
- Insect Resistance and Genetics
- Soil Carbon and Nitrogen Dynamics
- Legume Nitrogen Fixing Symbiosis
- Plant pathogens and resistance mechanisms
- Plant-Microbe Interactions and Immunity
- Mycorrhizal Fungi and Plant Interactions
- Plant Pathogenic Bacteria Studies
- Genomics and Phylogenetic Studies
- Nematode management and characterization studies
- Plant Pathogens and Fungal Diseases
- Environmental DNA in Biodiversity Studies
- Agronomic Practices and Intercropping Systems
- Insect Pest Control Strategies
- Ruminant Nutrition and Digestive Physiology
- Wheat and Barley Genetics and Pathology
- Insect symbiosis and bacterial influences
- Plant and fungal interactions
- Turfgrass Adaptation and Management
- Insect-Plant Interactions and Control
- Gut microbiota and health
- Plant Disease Resistance and Genetics
- Genetically Modified Organisms Research
- Insect behavior and control techniques
Agroscope
2016-2025
Amt für Umwelt
2022
GeoInformation (United Kingdom)
2022
World Economic Forum
2022
Federal Office for Agriculture
2002-2021
Cambridge University Press
2021
New York University Press
2021
Institute of Entomology
2021
Berufsverband Niedergelassener Gynäkologischer Onkologen
2008-2009
Agroécologie
2006
Significance Biological diversity is the foundation for maintenance of ecosystems. Consequently it thought that anthropogenic activities reduce in ecosystems threaten ecosystem performance. A large proportion biodiversity within terrestrial hidden below ground soils, and impact altering its composition on performance still poorly understood. Using a novel experimental system to alter levels soil community composition, we found reductions abundance presence organisms results decline multiple...
Low-input agricultural systems aim at reducing the use of synthetic fertilizers and pesticides in order to improve sustainable production ecosystem health. Despite integral role soil microbiome production, we still have a limited understanding complex response microbial diversity organic conventional farming. Here report on structural more than two decades different management long-term field experiment using high-throughput pyrosequencing approach bacterial fungal ribosomal markers. Organic...
Permafrost represents a largely understudied genetic resource. Thawing of permafrost with global warming will not only promote microbial carbon turnover direct feedback on greenhouse gases, but also unlock an unknown diversity. Pioneering metagenomic efforts have shed light the microbiome in polar regions, temperate mountain is understudied. We applied unique experimental design coupled to high-throughput sequencing ribosomal markers characterize microbiota at long-term alpine study site...
ABSTRACT Nitrogen-fixing microbial populations in a Douglas fir forest on the western slope of Oregon Cascade Mountain Range were analyzed. The complexity nifH gene pool ( is marker which encodes nitrogenase reductase) was assessed by performing nested PCR with bulk DNA extracted from plant litter and soil. restriction fragment length polymorphisms (RFLPs) products obtained reproducibly different than RFLPs underlying characteristic differences found during entire sampling period between May...
ABSTRACT Pseudomonas species are plant, animal, and human pathogens; exhibit plant pathogen-suppressing properties useful in biological control; or express metabolic versatilities valued biotechnology bioremediation. Specific detection of the environment may help us gain a more complete understanding ecological significance these microorganisms. The objective this study was to develop PCR protocol for selective (sensu stricto) environmental samples. Extensive database searches identified...
In this study, the effects of Bt-toxin Cry1Ab and a soybean trypsin inhibitor (SBTI) on intestinal bacterial communities adult honeybees (Apis mellifera) were investigated. It was hypothesized that changes in may represent sensitive indicator for altered physiology. Honeybees fed laboratory set-up with maize pollen from Bt-transgenic cultivar MON810 or non-transgenic near isoline. Purified (0.0014% w/v) SBTI (0.1% 1% represented supplementary treatments. For comparison, free-flying two...
ABSTRACT Changes in the diversity and structure of soil microbial communities may offer a key to understanding impact environmental factors on quality agriculturally managed systems. Twenty-five years biodynamic, bio-organic, or conventional management DOK long-term experiment Switzerland significantly altered bacterial community structures, as assessed by terminal restriction fragment length polymorphism (T-RFLP) analysis. To evaluate these results, relation between structures their...
Summary Nitrogen fixation is often enhanced in the rhizosphere as compared with bulk soil, due to asymbiotic microorganisms utilizing root exudates an energy source. We have studied activity and composition of soil diazotrophs following pulse additions artificial single carbon sources, simulating situation coming into contact from growing roots. Artificial sugars rapidly induced nitrogen fixation. The population potential was using universal group‐specific nifH polymerase chain reaction...
Abstract Spatial patterns of microbial communities have been extensively surveyed in well‐developed soils, but few studies investigated the vertical distribution micro‐organisms newly developed soils after glacier retreat. We used 454‐pyrosequencing to assess whether bacterial and fungal community structures differed between stages soil development ( SSD ) characterized by an increasing vegetation cover from barren (vegetation cover: 0%/age: 10 years), sparsely vegetated (13%/60 transient...
OPINION article Front. Microbiol., 10 February 2016Sec. Terrestrial Microbiology Volume 7 - 2016 | https://doi.org/10.3389/fmicb.2016.00073
Abstract It is becoming well‐established that plant diversity instrumental in stabilizing the temporal functioning of ecosystems through population dynamics and so‐called insurance or portfolio effect. However, it remains unclear whether diversity–stability relationships role soil microbial communities parallel those communities. Our study took place a long‐term land management experiment with without perturbation to ecosystem by tilling. We assessed impacts on diversity, synchrony stability...
ABSTRACT The study of free-living nitrogen-fixing organisms in bulk soil is hampered by the great diversity microbial communities and difficulty relating nitrogen fixation activities to individual members diazotroph populations. We developed a molecular method that allows analysis nifH mRNA expression parallel with determinations activity bacterial growth. In this study, Azotobacter vinelandii growing sterile liquid culture served as model system for expression, which sucrose carbon source...
ABSTRACT Free-living nitrogen-fixing prokaryotes (diazotrophs) are ubiquitous in soil and phylogenetically physiologically highly diverse. Molecular methods based on universal PCR detection of the nifH marker gene have been successfully applied to describe diazotroph populations environment. However, use degenerate primers low-stringency amplification conditions render these prone bias, while less primer sets will not amplify all genes. We developed a fixed-primer-site approach with six...
Abstract Genetic engineering offers the opportunity to generate plants with useful new traits conferred by genes originating from a variety of organisms. The objectives this study were establish methods for investigating persistence recombinant plant marker DNA after introduction into soil and collect data controlled laboratory test systems. As model system, we studied stability encoding neomycin phosphotransferase II (rNPT‐II), neomycin/kanamycin resistance marker, used in genetic...
ABSTRACT Prior to registration of crop protection products (CPPs) their persistence in soil has be determined under defined conditions. For this purpose, soils are collected the field and stored for up 3 months prior tests. During storage, stresses like drying may induce changes microbiological characteristics (MSCs) thus influence CPP degradation rates. We investigated storage-related stress on resistance resilience different MSCs by assessing impact a single severe drying-rewetting cycle...