- Plant Molecular Biology Research
- Plant Parasitism and Resistance
- Bryophyte Studies and Records
- Plant and animal studies
- Plant-Microbe Interactions and Immunity
- Coastal wetland ecosystem dynamics
- Protist diversity and phylogeny
- Plant Diversity and Evolution
- Biocrusts and Microbial Ecology
- Plant and Biological Electrophysiology Studies
- Fungal Biology and Applications
- Photosynthetic Processes and Mechanisms
- Marine and coastal plant biology
- Chromosomal and Genetic Variations
- Polysaccharides and Plant Cell Walls
- Peatlands and Wetlands Ecology
- Botany and Plant Ecology Studies
- Plant tissue culture and regeneration
- Plant and Fungal Species Descriptions
- Plant Reproductive Biology
Justus-Liebig-Universität Gießen
2022-2025
This study focuses on the question how and where information acquired by FLS2 perception of flg22 is transformed into electrical signals crucial for generation local systemic defense responses. In Arabidopsis thaliana Vicia faba leaves, density was high in epidermis vascular parenchyma, low mesophyll, absent sieve elements (SEs). Aequorin-based examinations disclosed dual cytosolic Ca 2+ peaks shortly after application, which corresponded with two voltage shifts from to SEs. These were...
Two bryophyte models, the hornwort Anthoceros agrestis (Anthoceros) and moss Physcomitrium patens (Physcomitrium), were analysed for presence of arabinogalactan-proteins (AGPs), as emergence these signalling glycoproteins in evolution is still under debate. AGPs both species had a galactan core structure similar to that other fern AGPs, but different angiosperm 1,6-linked pyranosidic galactose was almost absent. In AGP, furanosidic arabinose (Araf) linkages mainly terminal (10 %) or 5-linked...
Abstract Main conclusion Developing bryophytes differentially modify their plasmodesmata structure and function. Secondary formation via twinning appears to be an ancestral trait. Plasmodesmata networks in hornwort sporophyte meristems resemble those of angiosperms. All land-plant taxa use (PD) cell connections for symplasmic communication. In angiosperm development, PD undergo extensive remodeling by structural functional modifications, postcytokinetic additional secondary (secPD). Since...
Abstract California poppy ( Eschscholzia californica ) is a member of the Ranunculales, sister order to all other eudicots and as such in phylogenetically highly informative position. Ranunculales are known for their diverse floral morphologies biosynthesis many pharmaceutically relevant alkaloids. E. it widely used model system study conservation flower developmental control genes. However, within options stable genetic manipulations rare systems thus difficult establish. Here, we present...
Abstract Developmental patterning and organ structure are elegantly simple in the moss Physcomitrium patens . In molecular genetic studies, this facilitates both cultivation of severe mutant alleles their phenotypic characterization. Essential membrane lipids, such as complex phosphosphingolipids (in plants, glycosyl inositol phosphorylceramides, GIPCs), have been difficult to functionally characterize due non-viable pleiotropic phenotypes mutants affected synthesis Arabidopsis thaliana...
<title>Abstract</title> Background Fruits, with their diverse shapes, colors, and flavors, represent a fascinating aspect of plant evolution have played significant role in human history nutrition. Understanding the origins evolutionary pathways fruits offers valuable insights into diversity, ecological relationships, development agricultural systems. <italic>Arabidopsis thaliana</italic> (Brassicaceae, core eudicot) <italic>Eschscholzia californica</italic> (California poppy, Papaveraceae,...
Papaveraceae are known for their often showy flowers and diverse morphologies. Pteridophyllum racemosum (Siebold & Zucc.) is the only member in Pteridophylloideae within Papaveraceae, its phylogenetic position has long been controversial, a comprehensive analysis of floral morphology was lacking. Our study focuses on morphogenesis P. racemosum. Histological sections complemented with scanning electron microscopy allowed detailed characterization development including description vegetative...