Marine Protists and Rhodotorula Yeast as Bio-Convertors of Marine Waste into Nutrient-Rich Deposits for Mangrove Ecosystems
Publication date: Available online 28 May 2020Source: ProtistAuthor(s): Ana F. Miranda, Thi Linh Nham Tran, Tomer Abramov, Faridah Jehalee, Mohini Miglani, Zhiqian Liu, Simone Rochfort, Adarsha Gupta, Benjamas Cheirsilp, Benu Adhikari, Munish Puri, Aidyn Mouradov (Source: Protist)
Source: Protist - May 28, 2020 Category: Molecular Biology Source Type: research

First Records of ‘Flagship’ Soil Ciliates in North America
Publication date: Available online 23 May 2020Source: ProtistAuthor(s): Hunter N. Hines, Peter J. McCarthy, Genoveva F. Esteban (Source: Protist)
Source: Protist - May 24, 2020 Category: Molecular Biology Source Type: research

Morphology, Ultrastructure, and Molecular Phylogeny of Aphelidium collabens sp. nov. (Aphelida), a Parasitoid of a Green Alga Coccomyxa sp.
Publication date: Available online 19 May 2020Source: ProtistAuthor(s): Kensuke Seto, Toshihiro Matsuzawa, Hitoshi Kuno, Maiko Kagami (Source: Protist)
Source: Protist - May 21, 2020 Category: Molecular Biology Source Type: research

Editorial Board
Publication date: April 2020Source: Protist, Volume 171, Issue 2Author(s): (Source: Protist)
Source: Protist - April 28, 2020 Category: Molecular Biology Source Type: research

Morphology, Ultrastructure, and Phylogeny of Two Novel Species of Ventrifissura (V. oblonga n. sp. and V. velata n. sp., Thecofilosea, Cercozoa)
Publication date: Available online 25 April 2020Source: ProtistAuthor(s): Takashi Shiratori, Yabuki Akinori, Ken-ichiro Ishida (Source: Protist)
Source: Protist - April 28, 2020 Category: Molecular Biology Source Type: research

Editorial Board
Publication date: February 2020Source: Protist, Volume 171, Issue 1Author(s): (Source: Protist)
Source: Protist - April 4, 2020 Category: Molecular Biology Source Type: research

Shell Colour in Cercozoa; a Simple Trait to Distinguish Thecofilosea from Imbricatea?
Publication date: Available online 15 February 2020Source: ProtistAuthor(s): Kenneth Dumacka, Ferry SiemensmaRigid and persistent shells of microeukaryotes are widely used as bioindicators in ecological and paleontological studies. Drawing conclusions on ecological or evolutionary patterns depends strongly on the right taxonomic assignment of the observed species, however confusion is common. Especially in filose shelled amoebae it is often unclear whether species belong to the Imbricatea or Thecofilosea when only morphological data are collected. Molecular surveys shed light on their evolutionary relationship; based on th...
Source: Protist - February 16, 2020 Category: Molecular Biology Source Type: research

Unique Dynamics of Paramylon Storage in the Marine Euglenozoan Diplonema papillatum
Publication date: Available online 7 February 2020Source: ProtistAuthor(s): Ingrid Škodová-Sveráková, Galina Prokopchuk, Priscila Peña-Diaz, Kristína Záhonová, Martin Moos, Anton Horváth, Petr Šimek, Julius LukešDiplonemids belong to the most diverse and abundant marine protists, which places them among the key players of the oceanic ecosystem. Under in vitro conditions, their best-known representative Diplonema papillatum accumulates in its cytoplasm a crystalline polymer. When grown under the nutrient-poor conditions, but not nutrient-rich conditions, D. papillatum synthesizes a β-1,3-glucan polymer, also kno...
Source: Protist - February 8, 2020 Category: Molecular Biology Source Type: research

Parablepharisma (Ciliophora) is not a Heterotrich: A Phylogenetic and Morphological Study with the Proposal of New Taxa
Publication date: Available online 7 February 2020Source: ProtistAuthor(s): Pedro H. Campello-Nunes, Noemi M. Fernandes, Franziska Szokoli, Sergei I. Fokin, Valentina Serra, Letizia Modeo, Giulio Petroni, Carlos A.G. Soares, Thiago da S. Paiva, Inácio D. da Silva-NetoThe genus Parablepharisma Jankowski, 2007 at present includes five species, most of which have not been studied in detail, therefore phylogenetic affinities remained uninvestigated up to now. Parablepharisma is traditionally placed within Heterotrichea based on insufficient existing morphological data, and there are no available Parablepharisma gene sequences...
Source: Protist - February 8, 2020 Category: Molecular Biology Source Type: research

Exploring Diversity, Taxonomy and Phylogeny of Diatoms (Bacillariophyta) from Marine Habitats. Novel Taxa with Internal Costae
Publication date: Available online 30 January 2020Source: ProtistAuthor(s): Andrzej Witkowski, Matt Ashworth, Chunlian Li, Ibrahima Sagna, Diomaye Yatte, Ewa Górecka, Andréa Franco, Wolf-Henning Kusber, Georgia Klein, Horst Lange-Bertalot, Przemysław Dąbek, Edward C. Theriot, Schonna R. ManningIn many marine littoral and sublittoral benthic habitats, we find small diatoms with few features resolvable with light microscopy (LM) other than internal costae across their valves. While classically those internal costae have defined their identification and classification, the use of electron microscopy and of molecular data ...
Source: Protist - February 1, 2020 Category: Molecular Biology Source Type: research

Optimized mRuby3 is a Suitable Fluorescent Protein for in vivo Co-localization Studies with GFP in the Diatom Phaeodactylum tricornutum
Publication date: Available online 30 January 2020Source: ProtistAuthor(s): Pia Marter, Sebastian Schmidt, Stephan Kiontke, Daniel MoogPhaeodactylum tricornutum is an ecologically and evolutionarily relevant microalga that has developed into an important model for molecular biological studies on organisms with complex plastids. The diatom is particularly suitable for in vivo protein localization analyses via fluorescence microscopy in which the green fluorescent protein (GFP) and its derivatives are dominantly used. Whereas GFP fluorescence emission is usually measured between 500 and 520 nm in confocal microscopy, the a...
Source: Protist - February 1, 2020 Category: Molecular Biology Source Type: research

Fine Structure Observation of Feeding Behavior, Nephroselmis spp.-derived Chloroplast Enlargement, and Mitotic Processes in the Katablepharid Hatena arenicola
Publication date: Available online 30 January 2020Source: ProtistAuthor(s): Mami Nomura, Ryoma Kamikawa, Ken-ichiro IshidaThe difficult-to-cultivate katablepharid Hatena arenicola ingests green algae, Nephroselmis spp., and temporarily retains a Nephroselmis-derived cell compartment (kleptochloroplast), including a chloroplast within a phagocytotic vacuole. H. arenicola has a unique life history; during cell division, the Nephroselmis-derived cell compartment is only inherited by one of two daughter cells. However, the detailed morphological transition of the Nephroselmis cell to a kleptochloroplast and the mitotic process...
Source: Protist - February 1, 2020 Category: Molecular Biology Source Type: research

Phylogenetic Revision of the Order Entactinaria—Paleozoic Relict Radiolaria (Rhizaria, SAR)
Publication date: Available online 7 January 2020Source: ProtistAuthor(s): Yasuhide Nakamura, Miguel M. Sandin, Noritoshi Suzuki, Akihiro Tuji, Fabrice NotEntactinaria, an order of Radiolaria, are defined by a specific skeletal structure called “initial spicular system (ISS)”. The oldest entactinarians appeared in the Ordovician period, and the extant species are thought to have survived until today. However, the morphological observation revealed that the ISSs of entactinarian families are highly variable, and the validity of this characteristic is questionable. This is supported by the results of 18S and 28S rRNA mol...
Source: Protist - January 8, 2020 Category: Molecular Biology Source Type: research

Protist Interactions and Community Structure During Early Autumn in the Kerguelen region (Southern Ocean)
This study investigated protist community composition and biotic interactions focusing on microplankton at four distinct sites around the Kerguelen Islands (Southern Ocean) after the summer phytoplankton bloom. Protist diversity in different size fractions, sampled with Niskin bottles and plankton nets, was assessed by sequencing of the V4 18S rDNA region. Combining different approaches, i.e. sequencing of different plankton size fractions, and isolation and sequencing of single cells, provided new insights into microbial interactions in protist communities. The communities displayed high variability, including short-term ...
Source: Protist - December 18, 2019 Category: Molecular Biology Source Type: research

Editorial Board
Publication date: December 2019Source: Protist, Volume 170, Issue 6Author(s): (Source: Protist)
Source: Protist - December 8, 2019 Category: Molecular Biology Source Type: research