A5010622823- Protist diversity and phylogeny
- Microbial Community Ecology and Physiology
- Physiological and biochemical adaptations
- Genomics and Phylogenetic Studies
- Crustacean biology and ecology
- Aquatic Ecosystems and Phytoplankton Dynamics
- Neurobiology and Insect Physiology Research
- Environmental DNA in Biodiversity Studies
- Coastal wetland ecosystem dynamics
- Subterranean biodiversity and taxonomy
- Hydrology and Sediment Transport Processes
- Peatlands and Wetlands Ecology
- Evolution and Paleontology Studies
- Diatoms and Algae Research
- Microbial infections and disease research
- Aquaculture Nutrition and Growth
- Environmental Toxicology and Ecotoxicology
- Marine and coastal ecosystems
- Botany and Plant Ecology Studies
- Marine Biology and Ecology Research
- Digital Imaging for Blood Diseases
- Freshwater macroinvertebrate diversity and ecology
- Ecology and Vegetation Dynamics Studies
- Amphibian and Reptile Biology
- Genetic diversity and population structure
Senckenberg am Meer
2025
University of Cologne
2019-2024
University of Manitoba
2019-2024
Goniomonads are heterotrophic representatives of Cryptista, sister lineage to the phototrophic Cryptists. morphologically and genetically diverse, comprising nine genera described so far. Besides genera, SSU rDNA sequencing data has revealed existence at least one more monophyletic genus-level within goniomonads, as well novel species genera. Furthermore, diversity sequences goniomonads is not fully investigated, addition can be crucial for understanding evolution providing a basis taxonomic...
Heterotrophic protists are key components of marine ecosystems. They act as controllers bacterial and microphytobenthos production contribute significantly to the carbon flux higher trophic levels. Still, metabarcoding studies on benthic protist communities much less frequent than for planktonic organisms. Especially in Baltic Sea, representing largest brackish water environment earth, so far, no extensive have been conducted assess diversity this unique diverse habitat. This study aims give...
Abstract Aim To determine whether the crustacean Rh1 protein functions as a dual CO 2 /ammonia transporter and investigate its role in branchial ammonia excretion acid–base regulation. Methods Sequence analysis of decapod proteins was used to conservation amino acid residues putatively involved transport binding human bacterial Rh proteins. Using Carcinus maenas (CmRh1) representative proteins, we test capabilities CmRh1 through heterologous expression yeast Xenopus oocytes coupled with...
Abstract The orphan transporter hippocampus-abundant transcript 1 ( Hiat1 ) was first identified in the mammalian brain. Its specific substrate specificity, however, has not been investigated to date. Here, we and analyzed a crustacean, green crab Carcinus maenas . Our phylogenetic analysis showed that protein is conserved at considerable level between mammals this invertebrate (ca. 78% identical amino acids). Functional expression of Xenopus laevis oocytes demonstrated capability transport...
Abstract The dispersal of aquatic plant propagules is highly facilitated in streams due to flow. As many plants predominantly spread through vegetative propagules, the specific retention and thus drift distance dispersed fragments largely contribute rapid along course a stream. We determined fragment for four species ( Elodea canadensis , Myriophyllum spicatum Ceratophyllum demersum Salvinia natans ; representing different common morpho‐structural groups) sections small medium‐sized German...
Green algae usually assigned to the genus Oophila are known colonize egg capsules of amphibian masses across Nearctic and Palearctic regions. We study phylogenetic relationships these using a phylotranscriptomic data set 76 protein-coding single-copy nuclear genes. Our includes novel RNAseq for six amphibian-associated five free-living green algae, draft genomes two latter. Within clade (nested within Moewusinia), we find samples from European frogs (Rana dalmatina R. temporaria) closely...
Abstract Amphibian clutches are colonized by diverse but poorly studied communities of micro-organisms. One the most noted ones is unicellular green alga, Oophila amblystomatis , occurrence and role other micro-organisms in capsular chamber surrounding amphibian have remained largely unstudied. Here, we undertook a multi-marker DNA metabarcoding study to characterize community algae micro-eukaryotes associated with agile frog ( Rana dalmatina ) clutches. Samplings were performed at three...
The pale summer sedge caddisfly, Limnephilus hyalinus Hagen, 1861 (Limnephilidae, the Northern Caddisflies), is widespread in North America. Genome skimming by Illumina sequencing allowed assembly of a complete 15,168 bp circular mitogenome from L. consisting 78.0% AT nucleotides, 22 tRNAs, 13 protein-coding genes, two rRNAs and control region ancestral insect gene order. COX1 features an atypical CGA start codon while ATP8, NAD1, NAD5, NAD6 exhibit incomplete stop codons. mtTERM binding...
Abstract Cryptomonad protists are ubiquitously distributed over marine and freshwater habitats. As an exception to the coloured cryptomonads, heterotrophic cryptomonads of genus Goniomonas have ancestral phylogenetic position. They lack any kind chloroplast most likely represent a basal group those cryptomonad groups having obtained their by secondary endosymbiosis. Earlier studies shown deep divergence between clades goniomonads that comprise large genetic distances members within also two...
The American horseshoe crab, Limulus polyphemus, excretes nitrogenous waste in the form of toxic ammonia across their book gills. mechanism this branchial excretion is yet unknown. In current study, two isoforms a novel transporter, LpHIAT1α and LpHIAT1β, have been identified L. polyphemus. Both 12 predicted transmembrane regions share 82.7% amino acid identity to each other, 77–86% homology HIAT1 found fish crustaceans. both were expressed gills, coxal glands, brain. Slightly higher mRNA...