A5051458857- Aquatic Ecosystems and Phytoplankton Dynamics
- Plant Diversity and Evolution
- Protist diversity and phylogeny
- Marine and coastal plant biology
- Marine Biology and Ecology Research
- Plant and Fungal Species Descriptions
- Environmental DNA in Biodiversity Studies
- Diatoms and Algae Research
- Microbial Community Ecology and Physiology
- Marine and coastal ecosystems
- Coastal wetland ecosystem dynamics
- Biocrusts and Microbial Ecology
- Plant and animal studies
- Algal biology and biofuel production
- Plant Parasitism and Resistance
- Service and Product Innovation
- Global Healthcare and Medical Tourism
- Geology and Paleoclimatology Research
- Identification and Quantification in Food
- Plant Reproductive Biology
- Botanical Research and Applications
- Plant biochemistry and biosynthesis
- Mycorrhizal Fungi and Plant Interactions
- Rabbits: Nutrition, Reproduction, Health
- Photosynthetic Processes and Mechanisms
University of Rostock
2014-2023
Institut des Sciences Biologiques
2022
Landesamt für Landwirtschaft, Umwelt und ländliche Räume
2021
Charophytes are benthic algae with a complex morphology and high phenotypic plasticity. This has led to ambiguities in species delineation. However, until now genetic studies on Chara have been based samples collected from restricted geographic range or only included number of taxa. may hindered general interpretation the results. We applied barcoding matK, rapidly evolving coding section plastid genome, 324 19 countries, order test whether distribution barcode haplotypes among individuals...
In Europe, the genus Tolypella (Characeae) comprises four to eight taxa in sections Rothia and that have been distinguished by vegetative morphology gametangial characters such as antheridial size oospore wall ornamentation. However, morphological differentiation is difficult some cases due overlapping variable features, which many are observe clearly. To clarify taxonomic status of five European section Tolypella, sequence data plastid genes atpB, rbcL psbC for glomerata (Desv.) Leonh.,...
Charophyte species delineation is regularly based on a set of thallus morphological characteristics, but considering pronounced phenotypic plasticity, difficulties and doubts commonly occur in Chara determination. DNA barcoding may contribute to solving these challenges. Here we characterize contraria with an unusual specimens morphologically resembling connivens collected Serbia, by describing their traits analysing matK results. Our results indicated that dioecious specimens, tentatively...
The coastal waters are important transition zones for terrestrial nutrient and pollutant runoff the open Sea. During last decades, eutrophication has negatively influenced macrophyte communities of ecosystems, making restoration activities inevitable. This study analysed recent vegetation reproductive potential through sediment diaspore reservoir along German Baltic Sea coastline. Salinity was identified to be responsible factor shifts in community with most commonly found species like...
Abstract Over recent decades, the neophyte Fucus evanescens has extended eastwards along salinity gradient within Baltic Sea, indicating gradual adaptation to low conditions. To find out whether F. can migrate further into Sea and potentially become a competitor native vesiculosus , acclimation potentials of different populations were investigated with respect habitat salinity. For both species, pigmentation, water content, photosynthetic rate measured under laboratory field The...
(2020). Charophytes in warm springs on Svalbard (Spitsbergen): DNA barcoding identifies Chara aspera and canescens with unusual morphological traits. Botany Letters: Vol. 167, No. 2, pp. 179-186.
The first record of a species belonging to the genus Chara L. subgenus R.D.Wood section Grovesia subsect. Willdenowia from Europe is presented here, thus challenging interpretation its distribution pattern as an intertropical group charophytes. morphological characters specimens, well results phylogenetic analysis, clearly identified them zeylanica J.G.Klein ex Willd. Although subsection has yet receive thorough taxonomic treatment, discussion relationship other taxa this provided despite...
Abstract The Baltic Sea, a young habitat in geological terms, is characterised by strong climatic and salinity gradients that determine species distribution trigger adaptation processes. aim here was to test the hypothesis Sea charophytes which originate from large freshwater populations exhibit higher genetic variability than euryhaline charophyte species, restricted small number of brackish-marine populations. For this, euryhaline, mesohaline halotolerant with different patterns population...
Chara canescens Loisel. is the only haplostichous charophyte species in Europe. Populations with parthenogenetically reproducing females have been described from several European locations. In contrast, populations female and male individuals are known a few sites. Male of C. were recently found Sardinia (Italy) studied by analysis rbcL matK gene sequences. Phylogenetic demonstrated that all samples formed robust monophyletic group, which bisexual can be differentiated parthenogenetic It was...
Individuals within wild populations differ substantially in their fitness as a result of either genetic differences or acclimation. Within the Charophyte algae, two taxa Chara baltica and C. liljebladii predominate at different water depths same habitat. The are mainly distinguished by quantitative characteristics, pointing to light In particular, they length internode bract cells, well cortication type. Genetic analyses revealed that individuals both morphotypes genetically identical, hence...
A Chara exhibiting extreme morphological features including stipulodes, spine cells, and bracteoles is described subjected to barcoding procedures determine whether it belongs the contraria group or C. hispida group. MatK clearly placed in clade which was consistent with gametangial morphology, but not stipulode, cell bracteole morphology. The specimen determined be included var. hispidula taxon, previously reported for Newfoundland, Canada, USA.
Abstract Foundation species, and the roles that they play in structuring ecosystems, are threatened by global change. For example, charophytes a refuge for zooplankton stabilize sediments, but also food source various animal species (water birds, fishes, invertebrates). Particularly, introduction of new such as Gammarus tigrinus , into Baltic Sea led to yet not understood changes web. Furthermore, future projections point increased water temperatures freshwater inputs affecting capacity...
Abstract In Europe, the genus Tolypella (Characeae) comprises four to eight species in sections Rothia and that have been distinguished by vegetative morphology gametangial characters such as antheridial size oospore cell wall ornamentation. However, morphological differentiation is difficult some cases due overlapping variable features, which many are observe clearly. To clarify taxonomic status of five European section , sequence data plastid genes atp B, rbc L psb C for glomerata (Desv.)...
The use of environmental DNA (eDNA) for qualitative species inventories offers great potential as a cost-effective tool identification. This requires that the target release DNA, reference information is available and detection methods exist. Environmental analyses are currently used routinely to inventory fish fauna (Wang et al. 2021), molluscs (Klymus 2017) or insects (Uchida 2020). For other groups, such macrophytes, there not much (Scriver 2015). In plants, identifying suitable eDNA...