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Relative importance of water stress and host vitality in structuring root fungal communities in beech forestsNARA Subscribed
Background and aims In forest ecosystems, trees interact with a broad range of soil microorganisms, such as ectomycorrhizal fungi, improving nutrition and water uptake and mitigating biotic and abiotic stress. In the context of the predicted more frequent and more severe droughts, it is critical to characterise how trees and their associated fungal partners respond to water shortage to improve future forest management. Methods...
Nitrous oxide turnover in the suboxic zone of the Black SeaNARA Subscribed
The Black Sea is the largest meromictic marine basin characterized by well‐oxygenated surface waters and a deep sulfidic anoxic core, separated by a ca. 50‐m‐thick suboxic zone. Nitrogen cycling at oxic‐anoxic boundaries of oxygen‐depleted marine environments has been identified as a major source of nitrous oxide (N 2 O), a potent greenhouse gas. Contrary to this, previous work suggests that the Black Sea is considered only a...
Combined resistance mechanisms leading to high-level of cefiderocol resistance among NDM-like producing E. coli ST167 clinical isolatesNARA Subscribed
Summary Purpose A series of NDM-producing Escherichia coli ST167 clinical isolates exhibiting resistance to cefiderocol (FDC), with no previous exposure to this antibiotic, were analyzed in this study. Methods The antimicrobial susceptibility testing and phenotypic detection of resistance patterns (Rapid Cefiderocol NP test and MIC determination) were performed for all tested isolates. Their entire genomes were sequenced by us...
Molecular analysis of metallo-beta-lactamase-producing Pseudomonas aeruginosa in Switzerland 2022–2023NARA Subscribed
Objectives The occurrence of metallo-beta-lactamase-producing Pseudomonas aeruginosa (MBL-PA) isolates is increasing globally, including in Switzerland. The aim of this study was to characterise, phenotypically and genotypically, the MBL-PA isolates submitted to the Swiss National Reference Center for Emerging Antibiotic Resistance (NARA) reference laboratory over a 12-month period from July 2022 to July 2023. Methods Thirty-n...
Motivation Aquatic insects comprise 64% of freshwater animal diversity and are widely used as bioindicators to assess water quality impairment and freshwater ecosystem health, as well as to test ecological hypotheses. Despite their importance, a comprehensive, global database of aquatic insect occurrences for mapping freshwater biodiversity in macroecological studies and applied freshwater research is missing. We aim to fill t...
Research on how intermittent water releases from hydropower plants affect the early life stages of fish has advanced in the last years, focusing not only on the direct impacts of rapid flow changes (hydropeaking), but also on the short-term fluctuations in water temperature (thermopeaking). Flow and thermal fluctuations caused by hydropeaking may affect fish movement patterns and migration at critical stages of a species’ life...
The conservation status of the world’s freshwater molluscsNARA Subscribed
The increase in managed honeybees ( Apis mellifera ) in many European cities has unknown effects on the densities of wild bees through competition. To investigate this, we monitored honeybees and non-honeybees from 01 April to 31 July 2019 and 2020 at 29 species of plants representing diverse taxonomic and floral-functional types in a large urban garden in the city of Munich in which the same plant species were cultivated in b...
Longitudinal river zonation in the tropics: examples of fish and caddisflies from the endorheic Awash River, EthiopiaNARA Subscribed
Specific concepts of fluvial ecology are well studied in riverine ecosystems of the temperate zone but poorly investigated in the Afrotropical region. Hence, we examined the longitudinal zonation of fish and adult caddisfly (Trichoptera) assemblages in the endorheic Awash River (1,250 km in length), Ethiopia. We expected that species assemblages are structured along environmental gradients, reflecting the pattern of large-scal...
Bloom of a denitrifying methanotroph, ‘ Candidatus Methylomirabilis limnetica’, in a deep stratified lakeNARA Subscribed
Summary Methanotrophic bacteria represent an important biological filter regulating methane emissions into the atmosphere. Planktonic methanotrophic communities in freshwater lakes are typically dominated by aerobic gamma‐proteobacteria, with a contribution from alpha‐proteobacterial methanotrophs and the NC10 bacteria. The NC10 clade encompasses methanotrophs related to ‘ Candidatus Methylomirabilis oxyfera’, which oxidize me...