A5005451504- Plant-Microbe Interactions and Immunity
- Legume Nitrogen Fixing Symbiosis
- Bacterial biofilms and quorum sensing
- Microbial Fuel Cells and Bioremediation
- Nematode management and characterization studies
- Microbial Community Ecology and Physiology
- Plant Pathogenic Bacteria Studies
- Mycorrhizal Fungi and Plant Interactions
- Bacterial Genetics and Biotechnology
- Soil Carbon and Nitrogen Dynamics
- Genomics and Phylogenetic Studies
- Gut microbiota and health
- Plant Parasitism and Resistance
- Wastewater Treatment and Nitrogen Removal
- Oral microbiology and periodontitis research
- Plant Pathogens and Fungal Diseases
- Plant and Biological Electrophysiology Studies
- Dental Health and Care Utilization
- Biosensors and Analytical Detection
- bioluminescence and chemiluminescence research
- Pharmaceutical and Antibiotic Environmental Impacts
- Pesticide and Herbicide Environmental Studies
- Antimicrobial Peptides and Activities
- Electrochemical sensors and biosensors
- Plant tissue culture and regeneration
Helmholtz Zentrum München
2015-2024
Target (United States)
2023
Institute of Groundwater Ecology
2005-2023
Technical University of Munich
2000-2022
Laboratoire des Interactions Plantes Micro-Organismes
2019
Lviv University
2019
Center for Environmental Health
2010-2012
OPINION article Front. Plant Sci., 08 April 2014Sec. Pathogen Interactions https://doi.org/10.3389/fpls.2014.00131
Gluconacetobacter diazotrophicus is an aerobic diazotrophic plant-growth-promoting bacterium isolated from different gramineous plants. We showed that reactive oxygen species (ROS) were produced at early stages of rice root colonization, a typical plant defense response against pathogens. The transcription the pathogen-related-10 gene jasmonic acid (JA) pathway but not PR-1 salicylic was activated by endophytic colonization roots G. strain PAL5. Quantitative polymerase chain reaction...
Because of their beneficial impact on plants, the highly diverse mycorrhizal fungi grouped in order Sebacinales lay claim to high ecological and agricultural significance. Here, we describe for first time associations Sebacinoid members with bacteria. Using quantitative PCR, denaturating gradient gel electrophoresis fluorescence situ hybridization, detected an intimate association between Piriformospora indica Rhizobium radiobacter, alpha-Proteobacterium. The stability association, vertical...
The plant microbial fuel cell (PMFC) is a technology in which living roots provide electron donor, via rhizodeposition, to mixed community generate electricity cell. Analysis and localisation of the necessary for gaining insight into competition donor PMFC. This paper characterises anode–rhizosphere bacterial Glyceria maxima (reed mannagrass) Electrochemically active bacteria (EAB) were located on root surfaces, but they more abundant colonising graphite granular electrode. Anaerobic...
Graphite electrodes were modified with reduction of aryl diazonium salts and implemented as anodes in microbial fuel cells. First, 4-aminophenyl is considered using increased coulombic charge density from 16.5 to 200 mC/cm(2). This procedure introduced amine functionalities at the surface which are neutral pH. These "H" type cells inoculated waste water, acetate substrate ferricyanide cathode a 1000 Ω external resistance. When anode had developed, performances measured under saturation...
Pollen allergies have been rapidly increasing over the last decades. Many allergenic proteins and non-allergenic adjuvant compounds of pollen are involved in plant defense against environmental or microbial stress. The first aim this study was to analyze compare colonizing microbes on pollen. second investigate detectable correlations between microbiota parameters air pollution allergenicity. To reach these aims, bacterial fungal DNA isolated from samples timothy grass (Phleum pratense, n =...
Azospirillum sp. strain Sp245 T , originally identified as belonging to brasilense is recognized a plant-growth-promoting rhizobacterium due its ability fix atmospheric nitrogen and produce plant-beneficial compounds. other related strains were isolated from the root surfaces of different plants in Brazil. Cells are Gram-negative, curved or slightly rods, motile with polar lateral flagella. Their growth temperature varies between 20 38 °C their carbon source utilization similar species. A...
Abstract Eukaryotic organisms coevolved with microbes from the environment forming holobiotic meta-genomic units. Members of host-associated microbiomes have commensalic, beneficial/symbiotic, or pathogenic phenotypes. More than 100 years ago, Lorenz Hiltner, pioneer soil microbiology, introduced term ‘Rhizosphere’ to characterize observation that a high density saprophytic, beneficial, and are attracted by root exudates. The balance between these types decide about health host. Nowadays we...
The biocontrol strain Pseudomonas putida IsoF, which was isolated from a tomato rhizosphere, is known N-acyl-homoserine lactone (AHL) producer with only one LuxI/LuxR-like quorum-sensing (QS) system. production and degradation of AHLs were analysed in different growth phases the bacterium. Using analytical tools ultra performance liquid chromatography high resolution MS, it possible to determine not various synthesized over time but also their products. 3-oxo-decanoyl-homoserine found be...
Summary Melioidosis is an emerging infectious disease of humans and animals in the tropics caused by soil bacterium Burkholderia pseudomallei . Despite high fatality rates, ecology B. remains unclear. We used a combination field laboratory studies to investigate colonization native exotic grasses northern Australia. Multivariable spatial analyses were performed determine significant predictors for occurrence plants collected longitudinally from sites In plant inoculation experiments, impact...
Quorum sensing auto-inducers of the N-acyl homoserine lactone (AHL) type produced by Gram-negative bacteria have different effects on plants including stimulation root growth and/or priming or acquirement systemic resistance in plants. In this communication influence AHL production plant promoting endophytic rhizosphere bacterium Acidovorax radicis N35 barley seedlings was investigated. A. produces 3-hydroxy-C10-homoserine (3-OH-C10-HSL) as major compound. To study QS autoinducer interaction...
In our mouse model, gastric acid-suppression is associated with antigen-specific IgE and anaphylaxis development. We repeatedly observed non-responder animals protected from food allergy. Here, we aimed to analyse reasons for this protection. Ten out of 64 mice, subjected oral ovalbumin (OVA) immunizations under acid-suppression, were non-responders without OVA-specific or IgG1 elevation, indicating protection these non-responders, allergen challenges confirmed reduced antigen uptake lack...
Summary Long‐term agricultural fertilization strategies gradually change soil properties including the associated microbial communities. Cultivated crops recruit beneficial microbes from surrounding environment via root exudates. In this study, we aimed to investigate effects of long‐term across field sites on rhizosphere prokaryotic ( Bacteria and Archaea ) community composition plant performance. We conducted growth chamber experiments with lettuce Lactuca sativa L.) cultivated in soils...
Abstract Caries is associated with shifts of microbiota in dental biofilms and primarily driven by frequent sucrose consumption. Data on environmentally induced vivo are scarce therefore we investigated the influence consumption oral biofilm. Splint systems containing enamel slabs were worn for 3 × 7 days 7-day intervals to obtain biofilm samples. After a three-month dietary change sucking 10 g per day addition regular diet, was obtained again at end second phase. The analysed using Illumina...
Microbiome-based solutions are regarded key for sustainable agroecosystems. However, it is unclear how agricultural practices affect the rhizosphere microbiome, plant-microorganism interactions and crop performance under field conditions. Therefore, we installed root observation windows in a winter wheat cultivated either long-term mouldboard plough (MP) or cultivator tillage (CT). Each practice was also compared at two nitrogen (N) fertilization intensities, intensive (recommended N-supply...
Herbaspirillum frisingense is a diazotrophic betaproteobacterium isolated from C4-energy plants, for example Miscanthus sinensis. To demonstrate endophytic colonization unequivocally, immunological labeling techniques using monospecific polyclonal antibodies against two H. strains and green fluorescent protein (GFP)-fluorescence tagging were applied. The enabled specific in situ identification very detailed localization of isolates Mb11 GSF30(T) within roots Miscanthusxgiganteus seedlings....