5 results on '"Sieron, K"'
Search Results
2. The development of terrestrial ecosystems emerging after glacier retreat.
- Author
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Ficetola GF, Marta S, Guerrieri A, Cantera I, Bonin A, Cauvy-Fraunié S, Ambrosini R, Caccianiga M, Anthelme F, Azzoni RS, Almond P, Alviz Gazitúa P, Ceballos Lievano JL, Chand P, Chand Sharma M, Clague JJ, Cochachín Rapre JA, Compostella C, Encarnación RC, Dangles O, Deline P, Eger A, Erokhin S, Franzetti A, Gielly L, Gili F, Gobbi M, Hågvar S, Kaufmann R, Khedim N, Meneses RI, Morales-Martínez MA, Peyre G, Pittino F, Proietto A, Rabatel A, Sieron K, Tielidze L, Urseitova N, Yang Y, Zaginaev V, Zerboni A, Zimmer A, Diolaiuti GA, Taberlet P, Poulenard J, Fontaneto D, Thuiller W, and Carteron A
- Subjects
- Animals, Bacteria classification, Bacteria genetics, Bacteria isolation & purification, Fungi classification, Fungi genetics, Fungi isolation & purification, Plants microbiology, Soil chemistry, Soil Microbiology, Temperature, Time Factors, DNA Barcoding, Taxonomic, Microclimate, Biodiversity, Ecosystem, Ice Cover microbiology, Global Warming
- Abstract
The global retreat of glaciers is dramatically altering mountain and high-latitude landscapes, with new ecosystems developing from apparently barren substrates
1-4 . The study of these emerging ecosystems is critical to understanding how climate change interacts with microhabitat and biotic communities and determines the future of ice-free terrains1,5 . Here, using a comprehensive characterization of ecosystems (soil properties, microclimate, productivity and biodiversity by environmental DNA metabarcoding6 ) across 46 proglacial landscapes worldwide, we found that all the environmental properties change with time since glaciers retreated, and that temperature modulates the accumulation of soil nutrients. The richness of bacteria, fungi, plants and animals increases with time since deglaciation, but their temporal patterns differ. Microorganisms colonized most rapidly in the first decades after glacier retreat, whereas most macroorganisms took longer. Increased habitat suitability, growing complexity of biotic interactions and temporal colonization all contribute to the increase in biodiversity over time. These processes also modify community composition for all the groups of organisms. Plant communities show positive links with all other biodiversity components and have a key role in ecosystem development. These unifying patterns provide new insights into the early dynamics of deglaciated terrains and highlight the need for integrated surveillance of their multiple environmental properties5 ., (© 2024. The Author(s), under exclusive licence to Springer Nature Limited.)- Published
- 2024
- Full Text
- View/download PDF
3. Shifts in soil and plant functional diversity along an altitudinal gradient in the French Alps.
- Author
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Stokes A, Angeles G, Anthelme F, Aranda-Delgado E, Barois I, Bounous M, Cruz-Maldonado N, Decaëns T, Fourtier S, Freschet GT, Gabriac Q, Hernández-Cáceres D, Jiménez L, Ma J, Mao Z, Marín-Castro BE, Merino-Martín L, Mohamed A, Piedallu C, Pimentel-Reyes C, Reijnen H, Reverchon F, Rey H, Selli L, Siebe-Grabach CD, Sieron K, Weemstra M, and Roumet C
- Subjects
- France, Mexico, Plants, Soil Microbiology, Ecosystem, Soil
- Abstract
Objectives: Altitude integrates changes in environmental conditions that determine shifts in vegetation, including temperature, precipitation, solar radiation and edaphogenetic processes. In turn, vegetation alters soil biophysical properties through litter input, root growth, microbial and macrofaunal interactions. The belowground traits of plant communities modify soil processes in different ways, but it is not known how root traits influence soil biota at the community level. We collected data to investigate how elevation affects belowground community traits and soil microbial and faunal communities. This dataset comprises data from a temperate climate in France and a twin study was performed in a tropical zone in Mexico., Data Description: The paper describes soil physical and chemical properties, climatic variables, plant community composition and species abundance, plant community traits, soil microbial functional diversity and macrofaunal abundance and diversity. Data are provided for six elevations (1400-2400 m) ranging from montane forest to alpine prairie. We focused on soil biophysical properties beneath three dominant plant species that structure local vegetation. These data are useful for understanding how shifts in vegetation communities affect belowground processes, such as water infiltration, soil aggregation and carbon storage. Data will also help researchers understand how plant communities adjust to a changing climate/environment.
- Published
- 2021
- Full Text
- View/download PDF
4. Derivatives of Graphene Oxide as Potential Drug Carriers.
- Author
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Kozik V, Bak A, Pentak D, Hachula B, Pytlakowska K, Rojkiewicz M, Jampilek J, Sieron K, Jazowiecka-Rakus J, and Sochanik A
- Subjects
- Drug Carriers, Hydrogen Bonding, Oxides, Graphite
- Abstract
Chemically functionalized graphene oxides could be used as novel drug carriers. Covalent alterations of graphene oxides lead to surface changes via formation of chemical bonding while non-covalent ones involve van der Waals forces, hydrogen bonding, and π - π stacking interactions. Covalent modifications appear to be superior as they can yield compounds with desired properties and carriers prepared by other methods are less stable. Synthesis of graphene oxide-iminodiacetic acid and graphene oxide-glycine involves nucleophilic substitution of graphene oxide nanoparticles with iminodiacetic acid or glycine. As the first step, iminodiacetic acid or glycine were transformed into iminodiacetic acid or glycine methyl ester hydrochlorides, respectively, for C-terminus protection. The obtained product, activated in situ , was then used to form amide bonds between graphene oxide and iminodiacetic acid or glycine.
- Published
- 2019
- Full Text
- View/download PDF
5. The Forty-Sixth Euro Congress on Drug Synthesis and Analysis: Snapshot † .
- Author
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Mucaji P, Atanasov AG, Bak A, Kozik V, Sieron K, Olsen M, Pan W, Liu Y, Hu S, Lan J, Haider N, Musiol R, Vanco J, Diederich M, Ji S, Zitko J, Wang D, Agbaba D, Nikolic K, Oljacic S, Vucicevic J, Jezova D, Tsantili-Kakoulidou A, Tsopelas F, Giaginis C, Kowalska T, Sajewicz M, Silberring J, Mielczarek P, Smoluch M, Jendrzejewska I, Polanski J, and Jampilek J
- Subjects
- Chemistry, Pharmaceutical, Humans, Intersectoral Collaboration, Pharmacists, Quantitative Structure-Activity Relationship, Research Personnel, Slovakia, Drug Compounding
- Abstract
The 46th EuroCongress on Drug Synthesis and Analysis (ECDSA-2017) was arranged within the celebration of the 65th Anniversary of the Faculty of Pharmacy at Comenius University in Bratislava, Slovakia from 5-8 September 2017 to get together specialists in medicinal chemistry, organic synthesis, pharmaceutical analysis, screening of bioactive compounds, pharmacology and drug formulations; promote the exchange of scientific results, methods and ideas; and encourage cooperation between researchers from all over the world. The topic of the conference, "Drug Synthesis and Analysis," meant that the symposium welcomed all pharmacists and/or researchers (chemists, analysts, biologists) and students interested in scientific work dealing with investigations of biologically active compounds as potential drugs. The authors of this manuscript were plenary speakers and other participants of the symposium and members of their research teams. The following summary highlights the major points/topics of the meeting., Competing Interests: The authors declare no conflict of interest.
- Published
- 2017
- Full Text
- View/download PDF
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