Results 21 to 30 of about 5,561 (227)
Rhizaria in the oligotrophic ocean exhibit clear temporal and vertical variability
Deep Sea Research Part I: Oceanographic Research PapersRecently studies have shown that Rhizaria, a super-group of marine protists, have a large role in pelagic ecosystems. They are unique in that they construct mineral tests out of silica, calcium carbonate, or strontium sulfate.
Alexander Barth +3 more
semanticscholar +2 more sources
Reassessing Interkingdom Horizontal Gene Transfer Suggests Limited Influence on Plant Genomes. [PDF]
Ecol EvolHorizontal gene transfer (HGT) has been proposed as an important contributor to plant genome evolution, with hundreds of candidate genes reported across kingdoms. By reanalyzing published cases with updated genomic data and phylogenetic reconstructions, we found that only 29.3% remain consistent with interkingdom HGT.
Aguirre-Carvajal K, Armijos-Jaramillo V.
europepmc +2 more sources
Impact on Plankton Communities Following Abandonment of Rice Cultivation and Biotope Creation. [PDF]
Ecol EvolThis study clarified changes in plankton communities during the first year of fallow in long‐term cultivated paddy fields in Kyoto. These fields were in a fallow state, with no planting, cultivation, or fertilization occurring. When water was introduced at the same time of year as during active use and the fields were converted into biotopes, diversity
Nagano M, Teramoto R.
europepmc +2 more sources
Current Biology, 2014 Have you ever stumbled across Ernst Haeckel's stunning 19th century art prints representing complex symmetrical forms that look like snowflakes, armored knights, or even futuristic space stations? Or maybe walking down an indo-pacific beach, you have taken a closer look at the warm sand only to realize that the 'sand' is really countless, minute ...
Burki F, Keeling PJ
openaire +3 more sources
The persistent homology of mitochondrial ATP synthases
iScience, 2023 Summary: Relatively little is known about ATP synthase structure in protists, and the investigated ones exhibit divergent structures distinct from yeast or animals.
Savar D. Sinha, Jeremy G. Wideman
doaj +1 more source
Phylogenomics reshuffles the eukaryotic supergroups. [PDF]
PLoS ONE, 2007 Resolving the phylogenetic relationships between eukaryotes is an ongoing challenge of evolutionary biology. In recent years, the accumulation of molecular data led to a new evolutionary understanding, in which all eukaryotic diversity has been ...
Fabien Burki +6 more
doaj +1 more source
Estimating Biogenic Silica Production of Rhizaria in the Global Ocean [PDF]
Global Biogeochemical Cycles, 2020 AbstractSiliceous polycystines and phaeodarians are open‐ocean planktonic protists found throughout the water column and characterized by complex siliceous skeletons that are formed, at least partly, through the uptake of silicic acid. These protists contribute to the marine organic carbon (C) and biogenic silica (bSi) pools, but little is known about ...
Natalia Llopis Monferrer +5 more
openaire +5 more sources
Frontiers in Earth Science, 2023 The time series of downward particle flux at 3000 m at the Porcupine Abyssal Plain Sustained Observatory (PAP-SO) in the Northeast Atlantic is presented for the period 1989 to 2018.
R. S. Lampitt +8 more
doaj +1 more source
BMC Biology, 2022 Background Several protists have evolved the ability to perforate the cell walls of algae and fungi to specifically feed on their cell contents. These phagotrophic “protoplast feeders” represent an interesting mechanistic intermediate between predators ...
Jannika Moye +2 more
doaj +1 more source
Monophyly of Rhizaria and Multigene Phylogeny of Unicellular Bikonts [PDF]
Molecular Biology and Evolution, 2006 Reconstructing a global phylogeny of eukaryotes is an ongoing challenge of molecular phylogenetics. The availability of genomic data from a broad range of eukaryotic phyla helped in resolving the eukaryotic tree into a topology with a rather small number of large assemblages, but the relationships between these "supergroups" are yet to be confirmed ...
Burki F, Pawlowski J
openaire +4 more sources