Genetic Diversity in the Paramecium aurelia Species Complex [PDF]
Molecular Biology and Evolution, 2009 Current understanding of the population genetics of free-living unicellular eukaryotes is limited, and the amount of genetic variability in these organisms is still a matter of debate. We characterized-reproductively and genetically-worldwide samples of multiple Paramecium species belonging to a cryptic species complex, Paramecium aurelia, whose ...
Francesco Catania, Alexey Potekhin
exaly +6 more sources
Temperature and predators as interactive drivers of community properties. [PDF]
Ecol Evol, 2023 The effects of warming on ecological communities emerge from a range of potentially asymmetric impacts on individual physiology and development. We used microcosms with a range of protists, rotifers, and a gastrotrich, with and without the predator Actinosphaerium, to assess changes in diversity, body size, function, and composition in response to ...
DeLong JP +4 more
europepmc +2 more sources
Eco-phenotypic feedback loops differ in multistressor environments. [PDF]
EcologyAbstract Natural communities are exposed to multiple environmental stressors, which simultaneously impact the population and trait dynamics of the species embedded within these communities. Given that certain traits, such as body size, are known to rapidly respond to environmental change, and given that they can strongly influence the density of ...
Govaert L, Klauschies T.
europepmc +2 more sources
Model Selection for Ordinary Differential Equations: A Statistical Testing Approach. [PDF]
Biom JABSTRACT Ordinary differential equations (ODEs) are foundational tools in modeling intricate dynamics across a gamut of scientific disciplines. Yet, a possibility to represent a single phenomenon through multiple ODE models, driven by different understandings of nuances in internal mechanisms or abstraction levels, presents a model selection challenge.
Dattner I, Gugushvili S, Laskorunskyi O.
europepmc +2 more sources
Cryptic Diversity in Paramecium multimicronucleatum Revealed with a Polyphasic Approach. [PDF]
Microorganisms, 2022 Paramecium (Ciliophora) systematics is well studied, and about twenty morphological species have been described. The morphological species may include several genetic species.
Melekhin M +9 more
europepmc +3 more sources
The planktonic freshwater ciliate Balanion planctonicum (Ciliophora, Prostomatea): A cryptic species complex or a "complex species"? [PDF]
J Eukaryot MicrobiolAbstract The globally distributed ciliate Balanion planctonicum is a primary consumer of phytoplankton spring blooms. Due to its small size (~20 μm), identification and quantification by molecular tools is preferable as an alternative to the laborious counting of specimen in quantitative protargol stains. However, previous sequencing of the 18S rDNA V9
Schalch-Schuler M +7 more
europepmc +2 more sources
Ecosystem Size Mediates the Effects of Resource Flows on Species Diversity and Ecosystem Function at Different Scales. [PDF]
Ecol EvolEcosystem size and resource flows are key factors driving biodiversity and ecosystem function. However, the question of whether and how these drivers interact has been largely overlooked. Here, we show how ecosystem size asymmetry affects biodiversity and function of two‐patch meta‐ecosystems connected through flows of nonliving resources using a ...
Giacomuzzo E +3 more
europepmc +2 more sources
Massive colonization of protein-coding exons by selfish genetic elements in Paramecium germline genomes [PDF]
PLoS Biology, 2021 Frédéric Guérin +2 more
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A re-interpretation of Gause's population experiments by means of simulation [PDF]
, 1973 Contains fulltext : 75729.pdf (publisher's version ) (Open Access)BACKGROUND: There are thousands of very diverse ciliate species from which only a handful mitochondrial genomes have been studied so far. These genomes are rather similar
Goudriaan, J., Wit, C.T., de
core +12 more sources
Steroid Requirements of Paramecium aurelia [PDF]
Journal of General Microbiology, 1955 SUMMARY: Paramecium aurelia, var. 4, stock 51.7 (s) requires a steroid as a growth factor; β- and γ-sitosterol, fucosterol, brassicasterol, stigmastcrol and δ4,22-stigmastadienone are active in supporting its growth. Esterification of the 3-hydroxyl group decreases the activity.
W. J. Van Wagtendonk, Robert L. Conner
openaire +3 more sources