A5085464516- Plant-Microbe Interactions and Immunity
- Plant Parasitism and Resistance
- Legume Nitrogen Fixing Symbiosis
- Plant Pathogenic Bacteria Studies
- Plant Molecular Biology Research
- Polysaccharides and Plant Cell Walls
- Plant Reproductive Biology
- Plant and animal studies
- bioluminescence and chemiluminescence research
- Plant tissue culture and regeneration
- Photosynthetic Processes and Mechanisms
- Biochemical and Structural Characterization
- Nematode management and characterization studies
- Agronomic Practices and Intercropping Systems
- Plant Stress Responses and Tolerance
- Botanical Research and Chemistry
- Plant Virus Research Studies
- Agricultural pest management studies
- Transgenic Plants and Applications
- Allelopathy and phytotoxic interactions
- Phytochemical compounds biological activities
- Indoor Air Quality and Microbial Exposure
- Plant and Biological Electrophysiology Studies
- Plant responses to elevated CO2
- Genomics and Phylogenetic Studies
Friedrich-Alexander-Universität Erlangen-Nürnberg
2020-2023
University of Tübingen
2012-2022
University Hospital Regensburg
2011-2014
Lungenklinik Hemer
2012
Technical University of Darmstadt
2004-2006
Centre National de la Recherche Scientifique
1998
Surveillance of the extracellular environment by immune receptors is central importance to eukaryotic survival. The rice receptor kinase XA21, which confers robust resistance most strains Gram-negative bacterium Xanthomonas oryzae pv. (Xoo), representative a large class cell surface in plants and animals. We report identification previously undescribed Xoo protein, called RaxX, required for activation XA21-mediated immunity. that lack or carry mutations single RaxX tyrosine residue (Y41),...
Wound repair is a quiescent mechanism to restore barriers in multicellular organisms upon injury. In chronic wounds, however, this program prematurely stalls. It known that patterns of extracellular signals within the wound fluid are crucial healing. Extracellular pH (pHe) precisely regulated and potentially important signaling wounds due its diverse cellular effects. Additionally, sufficient oxygenation prerequisite for cell proliferation protein synthesis during tissue repair. was,...
As part of their immune system, plants have pattern recognition receptors (PRRs) that can detect a broad range microbe-associated molecular patterns (MAMPs). Here, we identified PRR Arabidopsis thaliana with specificity for the bacterial MAMP eMax from xanthomonads. Response to seems be restricted Brassicaceae family and also varied among different accessions Arabidopsis. In crosses between sensitive insensitive accession Shakhdara, perception mapped receptor-like protein1 (RLP1). Functional...
Parasitic plants are a constraint on agriculture worldwide. Cuscuta reflexa is stem holoparasite that infests most dicotyledonous plants. One exception tomato, which resistant to C. We discovered tomato responds small peptide factor occurring in spp. with immune responses typically activated after perception of microbe-associated molecular patterns. identified the cell surface receptor-like protein CUSCUTA RECEPTOR 1 (CuRe1) as essential for this parasite-associated pattern. CuRe1 sufficient...
Peptide signals have emerged as an important class of regulators in cell-to-cell communication plants. Several families small, secreted proteins with a conserved C-terminal Pro-rich motif been identified functional peptide Arabidopsis thaliana. These are presumed to be trimmed proteolytically and undergo posttranslational modifications, such hydroxylation Pro residues glycosylation, form mature, bioactive signals. Identification matching ligands their respective receptors remains major...
The receptor kinase EFR of Arabidopsis thaliana detects the microbe-associated molecular pattern elf18, a peptide that represents N terminus bacterial elongation factor Tu. Here, we tested subdomains for their importance in function. Transient expression tagged versions and lacking its cytoplasmic domain leaves Nicotiana benthamiana resulted functional binding sites elf18. No ligand was found with ectodomain transmembrane or first 5 21 leucine-rich repeats (LRRs). is structurally related to...
The flagellin receptor of Arabidopsis thaliana, At-FLAGELLIN SENSING2 (FLS2), has become a model for mechanistic and functional studies on plant immune receptors. Here, we started out with comparison At-FLS2 the orthologous tomato (Solanum lycopersicum) Sl-FLS2. Both receptors specifically responded to picomolar concentrations genuine flg22 ligand but proved insensitive >106-fold higher CLV3 peptides that have recently been reported as second type At-FLS2. Sl-FLS2 exhibit species-specific...
Abstract Parasitic plants of the genus Cuscuta penetrate shoots host with haustoria and build a connection to vasculature exhaust water, solutes carbohydrates. Such infections usually stay unrecognized by lead harmful plant damage. Here, we show molecular mechanism how can sense parasitic . We isolated an 11 kDa protein parasite cell wall identified it as glycine-rich (GRP). This GRP, well its minimal peptide epitope Crip21, serve pathogen-associated pattern specifically bind activate...
Activation of plant pattern-triggered immunity (PTI) relies on the recognition microbe-derived structures, termed patterns, through plant-encoded surface-resident pattern receptors (PRRs). We show that proteobacterial translation initiation factor 1 (IF1) triggers PTI in Arabidopsis thaliana and related Brassicaceae species. Unlike for most other immunogenic IF1 elicitor activity cannot be assigned to a small peptide epitope, suggesting tertiary fold features are required receptor...
Abstract: A suppressive subtractive hybridization technique was used to identify genes, which were induced during the early phases of interaction between dodder (Cuscuta reflexa), a phanerogamic parasite, and its incompatible host plant tomato. One identified genes encodes tomato xyloglucan endotransglycosylase/hydrolase (XTH) ‐ an enzyme involved in cell wall elongation restructuring. The corresponding LeXTH1 mRNA accumulated 6 h after attachment parasite. In contrast, wounding did not...
As part of their innate immune system plants carry a number pattern recognition receptors (PRRs) that can detect broad range microbe-associated molecular patterns (MAMPs). In recently published article1 we described novel, proteinaceous MAMP termed eMax (enigmatic Xanthomonas) derives from Xanthomonas and gets recognized by the receptor-like protein ReMAX (RECEPTOR OF eMax) Arabidopsis thaliana. has no ortholog in Nicotiana benthamiana this species does not respond to even when transformed...
Broomrapes (Orobanche & Phelipanche spp.) are parasitic weeds that significantly impact the productivity of major crops in Mediterranean region, like tomato (Solanum and faba bean (Vicia faba) species. This review article discusses extensively management strategies to control broomrapes, ranging from preventive measures curative approaches. Additionally, it includes meaningful information intricate molecular mechanisms underlying broomrape-host interaction, focusing on host...
Summary Dodder or Cuscutaceae are holoparasitic plants subsisting on other dicotyledonous plants. The infection process is initiated by adherence of Cuscuta prehaustoria to the host surface, followed penetration attempts hyphae. In case a successful infection, these organs connect parasite's vascular tissue that host. Here we show contact reflexa tomato induces expression new arabinogalactan protein (AGP), attAGP , in precisely at site dodder attack. We plasma membrane‐bound cell...
The pattern recognition receptor FLAGELLIN SENSING2 (FLS2) renders plant cells responsive to subnanomolar concentrations of flg22, the active epitope bacterial flagellin. We recently observed that a preparation peptide IDL1, signal known regulate abscission processes via kinases HAESA and HAESA-like2, apparently triggered Arabidopsis thaliana in an FLS2-dependent manner. However, closer investigation revealed this activity was due contamination by flg22-type peptide, newly synthesized IDL1...