Results 1 to 10 of about 5,561 (227)

Legacies of consecutive summer droughts on soil-borne plant parasitic protists (Oomycota: Stramenopila and Phytomyxea: Rhizaria) and protistan consumers (Cercozoa: Rhizaria) along an experimental plant diversity gradient. [PDF]

New Phytol
Increasing frequencies of severe summer droughts and plant diversity loss disrupt ecosystem functioning and stability of European grasslands. Understanding how these factors interact with pathogens is crucial.
Solbach MD, Albracht C, Dumack K, Eisenhauer N, Fiore-Donno AM, Heck N, Vogel A, Wagg C, Bonkowski M.   +8 more
europepmc   +3 more sources

A Novel Protistan Trait Database Reveals Functional Redundancy and Complementarity in Terrestrial Protists (Amoebozoa and Rhizaria). [PDF]

Mol Ecol Resour
The inclusion of functional traits of protists in environmental sequencing surveys, in addition to the traditional taxonomic framework, is essential for a better understanding of their roles and impacts on ecosystem processes.
Freudenthal J, Schlegel M, Bonkowski M, Dumack K.   +3 more
europepmc   +3 more sources

Composite calcite and opal test in Foraminifera (Rhizaria) [PDF]

Biogeosciences
Foraminifera are unicellular eukaryotes known to have a shell, called a test, generally made of secreted calcite (CaCO3). For the first time, we report a foraminifera with a composite calcite–opal test in the cosmopolitan and well-studied benthic species
J. Richirt, S. Okada, Y. Ishitani, K. Uematsu, A. Tame, K. Oda, N. Isobe, T. Ishimura, M. Tsuchiya, H. Nomaki   +9 more
doaj   +6 more sources

Comparative genomics of Ascetosporea gives new insight into the evolutionary basis for animal parasitism in Rhizaria [PDF]

BMC Biology
Background Ascetosporea (Endomyxa, Rhizaria) is a group of unicellular parasites infecting aquatic invertebrates. They are increasingly being recognized as widespread and important in marine environments, causing large annual losses in invertebrate ...
Markus Hiltunen Thorén, Ioana Onuț-Brännström, Anders Alfjorden, Hana Pecková, Fiona Swords, Chantelle Hooper, Astrid S. Holzer, David Bass, Fabien Burki   +8 more
doaj   +3 more sources

Transcriptome analyses to investigate symbiotic relationships between marine protists. [PDF]

Frontiers in Microbiology, 2015
Rhizaria are an important component of oceanic plankton communities worldwide. A number of species harbour eukaryotic microalgal symbionts, which are horizontally acquired in the environment at each generation.
Sergio eBalzano, Erwan eCorre, Johan eDecelle, Roberto eSierra, Patrick eWincker, Corinne eDa Silva, Julie ePoulain, Jan ePawlowski, Fabrice eNot   +8 more
doaj   +10 more sources

Phylogenomic tree of Cercozoa based on single-cell transcriptomes from 100 uncultured cells [PDF]

BMC Biology
Background Cercozoa are single-celled eukaryotes (protists) and are part of the supergroup Rhizaria. Cercozoans have vastly different morphologies and are defined by their phylogenetic affinity.
Gordon Lax, Elizabeth C. Cooney, Vasily Zlatogursky, Mahara Mtawali, Noriko Okamoto, Victoria K. L. Jacko-Reynolds, Saelin Bjornson, Corey Holt, Vedprakash G. Hurdeal, Daniele Giannotti, Patrick J. Keeling   +10 more
doaj   +2 more sources

Siliceous Rhizaria abundances and diversity in the Mediterranean Sea assessed by combined imaging and metabarcoding approaches

Frontiers in Marine Science, 2022
Siliceous Rhizaria (polycystine radiolarians and phaeodarians) are significant contributors to carbon and silicon biogeochemical cycles. Considering their broad taxonomic diversity and their wide size range (from a few micrometres up to several ...
Natalia Llopis Monferrer, Natalia Llopis Monferrer, Tristan Biard, Miguel M. Sandin, Miguel M. Sandin, Fabien Lombard, Fabien Lombard, Marc Picheral, Amanda Elineau, Lionel Guidi, Aude Leynaert, Paul J. Tréguer, Fabrice Not   +12 more
doaj   +2 more sources

Meiosis-associated expression patterns during starvation-induced cell fusion in the protist Fisculla terrestris [PDF]

BMC Biology
Background Unicellular eukaryotes were widely considered to r eproduce without sex. However, recent findings suggest that meiosis, and by extension (sometimes cryptic) sexual reproduction, might be present in almost all eukaryotic lineages. Results Here,
Shan Gao, Marcel Dominik Solbach, Jens Bast, Kenneth Dumack   +3 more
doaj   +2 more sources

Global census of the significance of giant mesopelagic protists to the marine carbon and silicon cycles [PDF]

Nature Communications
Thriving in both epipelagic and mesopelagic layers, Rhizaria are biomineralizing protists, mixotrophs or flux-feeders, often reaching gigantic sizes.
Manon Laget, Laetitia Drago, Thelma Panaïotis, Rainer Kiko, Lars Stemmann, Andreas Rogge, Natalia Llopis-Monferrer, Aude Leynaert, Jean-Olivier Irisson, Tristan Biard   +9 more
doaj   +2 more sources

Dinopallor Comventus n. gen., n. sp., a Novel Parasitoid of Marine Dinoflagellates Representing a Sister Lineage to Seagrass Parasites and Expanding the Host Range of Phytomyxea (Rhizaria, Endomyxa). [PDF]

Microb Ecol
Phytomyxea (SAR: Rhizaria: Endomyxa) is a group of obligate biotrophic parasitic protists comprised of two orders: Plasmodiophorida, found in terrestrial or freshwater environments, and Phagomyxida, found in marine environments.
Jeong YS, Jeon BS, Park MG.
europepmc   +2 more sources