Results 71 to 80 of about 3,270 (218)

Dominance of Ciliophora and Chlorophyta Among Phyllosphere Protists of Solanaceous Plants

open access: yesPhytobiomes Journal, 2023
Phyllosphere microbiota play an important role in shaping plant health and function but most research has focused only on bacterial and fungal communities. As a result, little is known about the composition of diverse microeukaryotes in the phyllosphere,
Stephen J. Taerum   +3 more
doaj   +1 more source

Cyanobacterial endobionts within a major marine, planktonic, calcifier (Globigerina bulloides, Foraminifera) revealed by 16S rRNA metabarcoding [PDF]

open access: yes, 2017
We investigated the possibility of bacterial symbiosis in Globigerina bulloides, a palaeoceanographically important, planktonic foraminifer. This marine protist is commonly used in micropalaeontological investigations of climatically sensitive subpolar ...
Bird, Clare   +7 more
core   +2 more sources

Cascading effects in freshwater microbial food webs by predatory Cercozoa, Katablepharidacea and ciliates feeding on aplastidic bacterivorous cryptophytes

open access: yesFEMS Microbiology Ecology, 2020
Heterotrophic nanoflagellates (HNF) are considered as major planktonic bacterivores, however, larger HNF taxa can also be important predators of eukaryotes. To examine this trophic cascading, natural protistan communities from a freshwater reservoir were
K. Šimek   +7 more
semanticscholar   +1 more source

Phylum-specific environmental DNA analysis reveals remarkably high global biodiversity of Cercozoa (Protozoa) [PDF]

open access: yesInternational Journal of Systematic and Evolutionary Microbiology, 2004
This study presents the first 18S rRNA multi-library environmental PCR survey of a single protozoan phylum, Cercozoa Cavalier-Smith 1998, from a range of different habitats. Phylogenetic analysis reveals at least nine novel clades within the phylum, several possibly at the level of order or above.
David, Bass, Thomas, Cavalier-Smith
openaire   +2 more sources

Genetic Diversity, Community Assembly, and Shaping Factors of Benthic Microbial Eukaryotes in Dongshan Bay, Southeast China

open access: yesFrontiers in Microbiology, 2020
Microbial eukaryotes are pivotal components of marine ecosystems. However, compared with the pelagic environments, the diversity distribution and the driving mechanisms of microbial eukaryotes in the marine sediments have rarely been explored.
Rong Gu   +14 more
doaj   +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

Biogeographical Distribution and Community Assembly of Active Protistan Assemblages along an Estuary to a Basin Transect of the Northern South China Sea

open access: yesMicroorganisms, 2021
Marine protists are essential for globally critical biological processes, including the biogeochemical cycles of matter and energy. However, compared with their prokaryotic counterpart, it remains largely unclear how environmental factors determine the ...
Ran Li   +6 more
doaj   +1 more source

Diversity and Evolution of Sensor Histidine Kinases in Eukaryotes [PDF]

open access: yes, 2019
Histidine kinases (HKs) are primary sensor proteins that act in cell signaling pathways generically referred to as "two component systems" (TCSs). TCSs are among the most widely distributed transduction systems used by both prokaryotic and eukaryotic ...
Akiyoshi   +172 more
core   +5 more sources

Prokaryotic and Eukaryotic Microbial Community in Kumamoto Oyster (Crassostrea sikamea) Larvae: Response to Antibiotics in Trace Concentration

open access: yesFishes, 2022
Antibiotic treatment is regarded as an emergency measure to avoid disease occurrence of aquatic animals during metamorphosis in an aquaculture system, which is very common in hatcheries of bivalve mollusc larvae.
Wenfang Dai   +6 more
doaj   +1 more source

Morphology, Ultrastructure, and Phylogeny of Two Novel Species of Ventrifissura (V. oblonga n. sp. and V. velata n. sp., Thecofilosea, Cercozoa).

open access: yesProtist, 2020
Ventrifissura is a group of poorly studied heterotrophic biflagellates in the phylum Cercozoa. Despite a phylogenetic placement with only weak support and a lack of ultrastructural data, Ventrifissura was assigned to Thecofilosea. In the presented study,
Takashi Shiratori   +2 more
semanticscholar   +1 more source

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