A5088129085- Mycorrhizal Fungi and Plant Interactions
- Plant-Microbe Interactions and Immunity
- Legume Nitrogen Fixing Symbiosis
- Forest Ecology and Biodiversity Studies
- Plant Pathogens and Fungal Diseases
- Fungal Biology and Applications
- Microbial Community Ecology and Physiology
- Plant Parasitism and Resistance
- Plant nutrient uptake and metabolism
- Soil Carbon and Nitrogen Dynamics
- Ecology and Vegetation Dynamics Studies
- Nematode management and characterization studies
- Gut microbiota and health
- Genomics and Phylogenetic Studies
- Crop Yield and Soil Fertility
- Fungal and yeast genetics research
- Plant and animal studies
- Plant and fungal interactions
- Plant Disease Resistance and Genetics
- Plant tissue culture and regeneration
- Plant responses to elevated CO2
- Plant Micronutrient Interactions and Effects
- Rice Cultivation and Yield Improvement
- Forest ecology and management
- Plant Molecular Biology Research
German Centre for Integrative Biodiversity Research
2015-2025
Helmholtz Centre for Environmental Research
2015-2025
Julius Kühn-Institut
2022
Leipzig University
2013
Université de Lorraine
2012
Interactions Arbres-Microorganismes
2012
University of Tübingen
2003-2008
Institute of Botany
2006
University of Helsinki
1996-2005
Francis Martin and colleagues report genome sequences for 18 species of mycorrhizal fungi a phylogenomic analysis including 32 other fungal genomes. The study identifies cell wall-degradation genes lost in all true ectomycorrhizal and, using gene expression data, finds candidate the establishment symbiosis. To elucidate genetic bases lifestyle evolution, we sequenced new genomes, 13 (ECM), orchid (ORM) ericoid (ERM) species, five saprotrophs, which analyzed along with Ectomycorrhizal have...
Oaks are an important part of our natural and cultural heritage. Not only they ubiquitous in most common landscapes1 but have also supplied human societies with invaluable services, including food shelter, since prehistoric times2. With 450 species spread throughout Asia, Europe America3, oaks constitute a critical global renewable resource. The longevity (several hundred years) probably underlies their emblematic historical importance. Such long-lived sessile organisms must persist the face...
Rhizobacteria are known to induce defense responses in plants without causing disease symptoms, resulting increased resistance plant pathogens. This study investigated how Streptomyces sp. strain AcH 505 suppressed oak powdery mildew infection pedunculate oak, by analyzing RNA-Seq data from singly- and co-inoculated oaks. We found that this elicited a systemic response was, part, enhanced upon pathogen challenge. In addition induction of the jasmonic acid/ethylene-dependent pathway, suggests...
Resilience of soils, i.e. their ability to maintain functions or recover after disturbance, is closely linked the root-soil interface, soil's power house. However, limited observability key processes at interface has so far our understanding how such resilience emerges. Here, we hypothesise that emerges from self-organised spatiotemporal patterns which are result complex and dynamic feedbacks between physical, chemical biological occurring in rhizosphere. We propose combination modern...
Summary Rhizosphere microbial communities adapt their structural and functional compositions to water scarcity have the potential substantially mitigate drought stress of crops. To unlock this potential, it is crucial understand community responses in complex interplay between soil properties, agricultural management crop species. Two winter wheat cultivars, demanding non‐demanding, were exposed loamy Chernozem sandy Luvisol soils under conventional or organic farming management. Structural...
Plants impact the development of their rhizosphere microbial communities. It is yet unclear to what extent root cap and specific zones contribute community assembly. To test roles caps hairs in establishment microbiomes along maize roots (Zea mays), we compared composition prokaryote (archaea bacteria) protist (Cercozoa Endomyxa) intact or decapped primary inbred line B73 with its isogenic hairless (rth3) mutant. In addition, tracked gene expression axis identify molecular control points for...
• The interaction between the mycorrhiza helper bacteria Streptomyces nov. sp. 505 (AcH 505) and annulatus 1003 1003) with fly agaric (Amanita muscaria) spruce (Picea abies) was investigated. effects of both on mycelial growth different ectomycorrhizal fungi, ectomycorrhiza formation, fungal gene expression in dual culture AcH were determined. fungus specificities streptomycetes similar. Both bacterial species showed strongest effect mycelia at 9 wk culture. A. muscaria examined using...
ABSTRACT The mycorrhiza helper bacterium Streptomyces strain AcH 505 improves mycelial growth of ectomycorrhizal fungi and formation ectomycorrhizas between Amanita muscaria spruce but suppresses the plant-pathogenic fungi, suggesting that it produces both fungal growth-stimulating -suppressing compounds. dominant fungal-growth-promoting substance produced by 505, auxofuran, was isolated, its effect on levels gene expression A. investigated. Auxofuran synthetic analogue 7-dehydroxy-auxofuran...
• Soil streptomycetes are commonly antagonistic against plant pathogens. However, interactions involving increased defense responses in the host plant, leading to suppression of disease development, have not yet been detailed. Here, mechanisms were studied by Streptomyces sp. GB 4-2 Heterobasidion root and butt rot Norway spruce (Picea abies) seedlings. promoted mycelial growth phytopathogenic fungus, germination rate fungal spores, extension germ tubes early colonization outer cortical...
Abstract Background Studies on mycorrhiza associated bacteria suggest that bacterial-fungal interactions play important roles during formation and affect plant health. We surveyed Streptomyces Actinobacteria, known as antibiotic producers antagonists of fungi, from Norway spruce mycorrhizas with predominantly Piloderma species the fungal partner. Results Fifteen isolates exhibited substantial variation in inhibition tested mycorrhizal pathogenic fungi ( Amanita muscaria, Fusarium oxysporum ,...
Summary Oaks ( Quercus spp.), which are major forest trees in the northern hemisphere, host many biotic interactions, but molecular investigation of these interactions is limited by fragmentary genome data. To date, only 75 oak expressed sequence tags EST s) have been characterized ectomycorrhizal EM ) symbioses. We synthesized seven beneficial and detrimental between microorganisms animals a clone DF 159) robur . Sixteen 454 eight Illumina cDNA libraries from leaves roots were prepared...
Summary S ulfurospirillum multivorans , a free‐living ε‐proteobacterium, is among the best studied organisms capable of organohalide respiration. It able to use several halogenated ethenes as terminal electron acceptor. In this report, complete genome sequence . including comparison with sequences two related non‐dehalogenating species, deleyianum and barnesii described. The 3.2 Mbp revealed ∼ 50 kbp gene region encoding proteins required for respiration corrinoid cofactor biosynthesis. This...
The genomes of two novel Dehalococcoides mccartyi strains, DCMB5 and BTF08, enriched from the heavily organohalide-contaminated megasite around Bitterfeld (Germany), were fully sequenced annotated. Although overal lsimilar, genome sequences strains reveal remarkable differences in their genetic content, reflecting a specific adaptation to contaminants at field sites which they enriched. strain BTF08 encodes for 20 reductive dehalogenases, is first example containing all three enzymes that...
Abstract The numerous feedback loops between roots, microorganisms, soil chemical and physical properties, environmental variables result in spatial parameter patterns which are highly dynamic time. In order to improve our understanding of the related rhizosphere processes their relevance at soil–plant system scale, experimental platforms required. Those should enable (1) relate small scale observations (nm dm) behaviour, (2) integration physical, biological sampling approaches within same...
Abstract Aims Root hairs are important for uptake, especially nutrients with low mobility in soils high sorption capacity. Mutants defective root expected to have lower nutrient unless they compensate more growth. Since can also contribute the plant's water uptake their importance could change over course of a growing season. It was our objective investigate role under field conditions. Methods The hair mutant rth3 Zea mays and corresponding wild-type were grown two years conditions on sand...