Results 41 to 50 of about 2,458 (152)

Topographic Analysis of Intertidal Polychaete Reefs (Sabellaria alveolata) at a Very High Spatial Resolution

open access: yesRemote Sensing, 2022
In temperate coastal regions of Western Europe, the polychaete Sabellaria alveolata (Linné) builds large intertidal reefs of several hectares on soft-bottom substrates.
Guillaume Brunier   +4 more
doaj   +1 more source

Evolutionary divergence and functional insights into the heteromeric cis‐prenyltransferase of Paramecium tetraurelia

open access: yesThe FEBS Journal, Volume 293, Issue 6, Page 1681-1707, March 2026.
Heteromeric cis‐prenyltransferases (CPT) are indispensable for dolichol synthesis and protein N‐glycosylation in most eukaryotes. The catalytic subunits are strongly conserved throughout evolution, in contrast to the evolutionarily variable accessory subunits. The POC1 protein from Paramecium tetraurelia is the smallest identified CPT‐accessory subunit
Agnieszka Onysk   +8 more
wiley   +1 more source

The evolution of cardiolipin biosynthesis and maturation pathways and its implications for the evolution of eukaryotes

open access: yesBMC Evolutionary Biology, 2012
Background Cardiolipin (CL) is an important component in mitochondrial inner and bacterial membranes. Its appearance in these two biomembranes has been considered as evidence of the endosymbiotic origin of mitochondria.
Tian Hai-Feng   +2 more
doaj   +1 more source

Stable endocytic structures navigate the complex pellicle of apicomplexan parasites

open access: yesNature Communications, 2023
Apicomplexan parasites have immense impacts on humanity, but their basic cellular processes are often poorly understood. Where endocytosis occurs in these cells, how conserved this process is with other eukaryotes, and what the functions of endocytosis ...
Ludek Koreny   +14 more
doaj   +1 more source

Morphology, Ontogenesis, and Multi‐Gene Phylogeny of the Type Species Cyrtohymena muscorum (Kahl, 1932) Foissner, 1989 (Alveolata, Ciliophora, Hypotricha)

open access: yesZoologica Scripta, Volume 55, Issue 2, Page 368-387, March 2026.
ABSTRACT Members of the oxytrichid genus Cyrtohymena are characterised by a distinctive undulating membranes type, known as the Cyrtohymena pattern, featuring a strongly curved stichodyad paroral that forms a semicircle distally. Although the type species, Cyrtohymena muscorum, has been redescribed morphologically, its ontogenesis remains poorly ...
Atef Omar, Jae‐Ho Jung
wiley   +1 more source

Metabarcoding and biomass quantification reveal seasonal parasite associations in copepods

open access: yesLimnology and Oceanography, Volume 71, Issue 2, February 2026.
Abstract Parasites are important members of ecosystems, and recent metabarcoding efforts have revealed an abundance of microbial eukaryotic parasites in copepods. However, a putative linkage to host community biomass and composition has not been addressed. We performed zooplankton tows monthly for 2 yr at five stations in the Oslofjord, Norway.
Lasse Krøger Eliassen   +4 more
wiley   +1 more source

Seascape genomics reveals population isolation in the reef-building honeycomb worm, Sabellaria alveolata (L.)

open access: yesBMC Evolutionary Biology, 2020
Background Under the threat of climate change populations can disperse, acclimatise or evolve in order to avoid fitness loss. In light of this, it is important to understand neutral gene flow patterns as a measure of dispersal potential, but also ...
Anna P. Muir   +9 more
doaj   +1 more source

Still acting green: continued expression of photosynthetic genes in the heterotrophic Dinoflagellate Pfiesteria piscicida (Peridiniales, Alveolata). [PDF]

open access: yesPLoS ONE, 2013
The loss of photosynthetic function should lead to the cessation of expression and finally loss of photosynthetic genes in the new heterotroph. Dinoflagellates are known to have lost their photosynthetic ability several times.
Gwang Hoon Kim   +6 more
doaj   +1 more source

Retracing Storage Polysaccharide Evolution in Stramenopila

open access: yesFrontiers in Plant Science, 2021
Eukaryotes most often synthesize storage polysaccharides in the cytosol or vacuoles in the form of either alpha (glycogen/starch)- or beta-glucosidic (chrysolaminarins and paramylon) linked glucan polymers. In both cases, the glucose can be packed either
Malika Chabi   +7 more
doaj   +1 more source

Microbial Distributions Across Wide‐Ranging Temperature Gradients of Hot Springs in Thailand: A Review of 35 Years of Research on Hot Spring‐Associated Microorganisms

open access: yesEnvironmental Microbiology Reports, Volume 18, Issue 1, February 2026.
This review article summarised 35 years of research on microbial distributions (bacteria, archaea and microbial eukaryotes) across wide‐ranging hot spring temperatures in Thailand, including the overall research progression, scopes and methodologies of previous studies.
C. Sriaporn   +5 more
wiley   +1 more source

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