DNA (deoxyribonucleic acid ) methylation is a key epigenetic mechanism that regulates gene expression and developmental transitions in eukaryotes. Interestingly, algal growth- and morphogenesis-promoting bacteria can reduce global DNA methylation levels in the green seaweed Ulva (Chlorophyta), highlighting…
Abstract Background Pseudosulfitobacter pseudonitzschiae is a species within the genus Pseudosulfitobacter , which belongs to the Roseobacteraceae . This family is closely associated with algae and is essential to marine ecosystems, particularly through interactions with phytoplankton. Notably, this…
Abstract Arctic rivers are intricate water networks that chemically and biologically process carbon before releasing it as carbon dioxide (CO 2 ) into the atmosphere or carrying it to the ocean. Primary producers use inorganic carbon to build biomass at the base of the trophic chain. Little is known…
ABSTRACT The green macroalga Ulva demonstrates exceptional growth rates, robustness, adaptability and potential for nitrogen and phosphorus removal; thus, it is a promising candidate for wastewater treatment and bioremediation. However, micropollutants in wastewater pose a potential threat to the holobiont.…
DNA methylation is the most common epigenetic modification in both prokaryotic and eukaryotic genomes. Here we present a method based on highly efficient acid-hydrolysis of DNA, liquid chromatography, and detection by mass spectrometry to accurately quantify cytosine methylation in highly methylated…
Abstract Background The evolution of differences in gamete size and number between sexes is a cornerstone of sexual selection theories. The green macroalga Ulva , with incipient anisogamy and parthenogenetic gametes, provides a unique system to investigate theoretical predictions regarding the evolutionary…
Anthropogenic xenoestrogens pose serious threats to humans and the environment. Ulva (Chlorophyta), a green macroalga that can propagate in environments of various salinities, is a potential candidate for efficient wastewater treatment and bioremediation. In this study, we tested the class of bisphenols…
Abstract Macroalgae are found in a variety of marine vegetation ecosystems around the world, contributing significantly to global net primary production. In particular, the sea lettuce species, i.e., members of the genus Ulva (Chlorophyta), are located in many ecological niches and are characterized…
Abstract Raman spectroscopy was used to study the complex interactions and morphogenesis of the green seaweed Ulva (Chlorophyta) and its associated bacteria under controlled conditions in a reductionist model system. Integrating multiple imaging techniques contributes to a more comprehensive understanding…
A fully enantioselective, catalytic synthesis of the algal morphogen (−)‐thallusin using polyene cyclization chemistry is reported. The synthesis features dedicated precursor design, introduction of a TMS‐substituted arene as a regioselective terminator, very high enantiomer excess ( ee ) on gram scale,…
The stability of reported organic materials for redox flow batteries (RFB) continues to improve. Consequently, the relevance of analytical techniques to assess degradation rates also grows. To contribute to the development of in operando thermal stability assessment techniques, we evaluated the commonly-reported…
The green marine seaweed Ulva (Chlorophyta) is widely suggested as a biofilter for cost-effective bioremediation in integrated multitrophic aquaculture and wastewater management. Micropollutants (MPs), including antibiotics, endocrine disruptors, and herbicides, can severely affect humans and the environment.…
Dordrecht [u.a.]: Springer Science + Business Media B.V; Kluwer, 2023-10
Thallusin, a highly biologically active, phytohormone-like and bacterial compound-inducing morphogenesis of the green tide-forming macroalga Ulva (Chlorophyta), was determined in bacteria and algae cultures. A sensitive and selective method was developed for quantification based on ultra-high-performance…
Chemical mediators are key compounds for controlling symbiotic interactions in the environment. Here, we disclose a fully stereoselective total synthesis of the algae differentiation factor (−)‐thallusin that utilizes sophisticated 6‐ endo ‐cyclization chemistry and effective late‐stage sp 2 –sp 2 ‐couplings…
Chemische Mediatoren sind Schlüsselverbindungen zur Kontrolle von Symbiosen in unserer Umwelt. Hier berichten wir über eine völlig stereoselektive Totalsynthese des Algendifferenzierungsfaktors (−)‐Thallusin, die sich durchdachter 6‐ endo ‐Zyklisierungschemie und effektiver sp 2 –sp 2 ‐Kupplungen mittels…
Abstract Main conclusion We advance Ulva ’s genetic tractability and highlight its value as a model organism by characterizing its APAF1_C/WD40 domain-encoding gene, which belongs to a family that bears homology to R genes. Abstract The multicellular chlorophyte alga Ulva mutabilis (Ulvophyceae, Ulvales)…
When organic matter from thawed permafrost is released, the sources and sinks of greenhouse gases (GHGs), like carbon dioxide (CO 2 ) and methane (CH 4 ) in Arctic rivers will be influenced in the future. However, the temporal variation, environmental controls, and magnitude of the Arctic riverine GHGs…
Ulva is a ubiquitous marine and freshwater macroalgae genus that belongs to the phylum Chlorophyta. Macroalgae and bacteria strongly interact through chemical queues. Ulva mutabilis forms with the bacteria, Roseovarius sp. and Maribacter sp. a robust community. Ulva attracts and supports bacterial growth,…
The endocrine disruptor bisphenol A (BPA) is one of the most commonly found micropollutants in the environment. However, the biodegradation of BPA under anaerobic (methanogenic) conditions is still an understudied process in wastewater treatment systems. The current study thus addresses the need for…
The microbiome of macroalgae facilitates their adaptation to environmental stress. As bacteria release algal growth and morphogenesis promoting factors (AGMPFs), which are necessary for the healthy development of macroalgae, bacteria play a crucial role in stress adaptation of bacterial-algal interactions.…