Search Results - "Shiratori, Takashi"
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Phagocytosis-like cell engulfment by a planctomycete bacterium
Published in Nature communications (11-12-2019)“…Phagocytosis is a key eukaryotic feature, conserved from unicellular protists to animals, that enabled eukaryotes to feed on other organisms. It could also be…”
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Novel alkenone-producing strains of genus Isochrysis (Haptophyta) isolated from Canadian saline lakes show temperature sensitivity of alkenones and alkenoates
Published in Organic geochemistry (01-07-2018)“…[Display omitted] •Novel LCA-producing strains from Canadian lakes established as unialgal cultures.•Seven strains were categorized in the Isochrysis clade…”
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Trachyrhizium urniformis n. g., n. sp., a Novel Marine Filose Thecate Amoeba Related to a Cercozoan Environmental Clade (Novel Clade 4)
Published in The Journal of eukaryotic microbiology (01-11-2016)“…A novel cercozoan filose thecate amoeba, Trachyrhizium urniformis n. g., n. sp., was isolated from a marine sediment sample collected at Agenashiku Island,…”
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A New Heterotrophic Cryptomonad: Hemiarma marina n. g., n. sp
Published in The Journal of eukaryotic microbiology (01-11-2016)“…We report a new heterotrophic cryptomonad Hemiarma marina n. g., n. sp. that was collected from a seaweed sample from the Republic of Palau. In our molecular…”
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Phylogeny and Morphology of New Diplonemids from Japan
Published in Protist (01-04-2018)“…Diplonemids were recently found to be the most species-rich group of marine planktonic protists. Based on phylogenetic analysis of 18S rRNA gene sequences and…”
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Entamoeba marina n. sp.; a New Species of Entamoeba Isolated from Tidal Flat Sediment of Iriomote Island, Okinawa, Japan
Published in The Journal of eukaryotic microbiology (01-05-2016)“…The genus Entamoeba includes anaerobic lobose amoebae, most of which are parasites of various vertebrates and invertebrates. We report a new Entamoeba species,…”
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Morphology, Ultrastructure, and Phylogeny of Two Novel Species of Ventrifissura (V. oblonga n. sp. and V. velata n. sp., Thecofilosea, Cercozoa)
Published in Protist (01-07-2020)“…Ventrifissura is a group of poorly studied heterotrophic biflagellates in the phylum Cercozoa. Despite a phylogenetic placement with only weak support and a…”
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Composition of long chain alkenones and alkenoates as a function of growth temperature in marine haptophyte Tisochrysis lutea
Published in Organic geochemistry (01-09-2016)“…•Haptophyte strain NIES-2590 was genetically identified as T. lutea.•T. lutea lacked C37:4 alkenones, and grew well between 15°C and 35°C.•U37K calibrations of…”
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Horizontally-acquired genetic elements in the mitochondrial genome of a centrohelid Marophrys sp. SRT127
Published in Scientific reports (19-03-2019)“…Mitochondrial genomes exhibit diverse features among eukaryotes in the aspect of gene content, genome structure, and the mobile genetic elements such as…”
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Microheliella maris possesses the most gene-rich mitochondrial genome in Diaphoretickes
Published in Frontiers in ecology and evolution (04-11-2022)“…The mitochondrial genomes are very diverse, but their evolutionary history is unclear due to the lack of efforts to sequence those of protists (unicellular…”
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Hydrothermal vent chimney-base sediments as unique habitat for meiobenthos and nanobenthos: Observations on millimeter-scale distributions
Published in Frontiers in Marine Science (12-01-2023)“…Hydrothermal vents are critical to marine geochemical cycling and ecosystem functioning. Although hydrothermal vent-associated megafauna and chemoautotrophic…”
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A novel alphaproteobacterial ectosymbiont promotes the growth of the hydrocarbon-rich green alga Botryococcus braunii
Published in Scientific reports (01-07-2015)“…Botryococcus braunii is a colony-forming green alga that accumulates large amounts of liquid hydrocarbons within the colony. The utilization of B. braunii for…”
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Ubiquity and quantitative significance of detoxification catabolism of chlorophyll associated with protistan herbivory
Published in Proceedings of the National Academy of Sciences - PNAS (23-10-2012)“…Chlorophylls are essential components of the photosynthetic apparati that sustain all of the life forms that ultimately depend on solar energy. However, a…”
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Taming chlorophylls by early eukaryotes underpinned algal interactions and the diversification of the eukaryotes on the oxygenated Earth
Published in The ISME Journal (01-08-2019)“…Extant eukaryote ecology is primarily sustained by oxygenic photosynthesis, in which chlorophylls play essential roles. The exceptional photosensitivity of…”
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One high quality genome and two transcriptome datasets for new species of Mantamonas, a deep-branching eukaryote clade
Published in Scientific data (09-09-2023)“…Mantamonads were long considered to represent an “orphan” lineage in the tree of eukaryotes, likely branching near the most frequently assumed position for the…”
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Phylogeny, Ultrastructure, and Flagellar Apparatus of a New Marimonad Flagellate Abollifer globosa sp. nov. (Imbricatea, Cercozoa)
Published in Protist (01-12-2014)“…Abollifer is a little-known genus of marine heterotrophic flagellates with no ultrastructural and molecular information, and its taxonomic position remains…”
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Taxonomic study of a new eustigmatophycean alga, Vacuoliviride crystalliferum gen. et sp. nov
Published in Journal of plant research (01-03-2015)“…This study investigated the taxonomic affiliation of the algal strain nak-9, which has been reported to absorb radioactive cesium with high efficiency, using…”
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132,173-Cyclopheophorbide b enol as a catabolite of chlorophyll b in phycophagy by protists
Published in FEBS letters (19-08-2013)“…•A novel chlorophyll b (Chl-b) derivative was found from phycophagic protists.•The derivative was identified as 132,173-cyclopheophorbide b enol…”
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Mitochondrial Genomes of Hemiarma marina and Leucocryptos marina Revised the Evolution of Cytochrome c Maturation in Cryptista
Published in Frontiers in ecology and evolution (02-06-2020)“…Two evolutionarily distinct systems for cytochrome c maturation in mitochondria—Systems I and III—have been found among diverse aerobic eukaryotes. System I…”
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Viridiuvalis adhaerens gen. et sp. nov., a novel colony-forming chlorarachniophyte
Published in Journal of plant research (01-11-2017)“…A new chlorarachniophyte, Viridiuvalis adhaerens gen. et sp. nov. was isolated from the mucus on a coral reef from Zanpa Beach, Okinawa, Japan. The main…”
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