Results 51 to 60 of about 5,046 (240)

Immaturin-Nuclease as a Model System for a Gene-Programmed Sexual Development and Rejuvenescence in Paramecium Life History

Microorganisms, 2022
Fertilization-initiated development and adult-onset aging are standard features in the life history of eukaryotes. In Paramecium, the number of cell divisions after the birth of a new generation is an essential parameter of sexual phase transition and ...
Nobuyuki Haga, Toshinori Usui, Yasuhiro Takenaka, Yuta Chiba, Tomoaki Abe   +4 more
doaj   +1 more source

Histone modifications are specifically relocated during gene activation and nuclear differentiation

BMC Genomics, 2009
Background Post-translational histone modifications (PTMs) and their specific distribution on genes play a crucial role in the control of gene expression, but the regulation of their dynamics upon gene activation and differentiation is still poorly ...
Lipps Hans-Joachim, Weber Susanne, Heyse Katharina   +2 more
doaj   +1 more source

A new contribution to the taxonomy and phylogeny of the ciliate genus Spirostomum (Alveolata, Ciliophora, Heterotrichea), with comprehensive descriptions of two species from wetlands in China

Water Biology and Security, 2022
Species of the ciliate genus Spirostomum Ehrenberg, 1834 are distributed worldwide and have a research history spanning more than two centuries. However, species delimitation and phylogenetic relationships within this genus are still uncertain due to the
Yong Chi, Zhe Wang, Tingting Ye, Ya Wang, Junli Zhao, Weibo Song, William A. Bourland, Xiangrui Chen   +7 more
doaj   +1 more source

Risk of Spread of Megalocytivirus pagrus1 (Infectious Spleen and Kidney Necrosis Virus) From Frozen Fillets

Journal of Fish Diseases, EarlyView.
ABSTRACT Infectious spleen and kidney necrosis virus (ISKNV) is a significant threat to global aquatic food security by causing large‐scale mortality in the aquaculture of tilapia (Oreochromis niloticus) and mandarin fish (Siniperca chuatsi). ISKNV is a genogroup of Megalocytivirus pagrus1, along with RSIV and TRBIV, and their recent listing as WOAH ...
Joy A. Becker, Paul M. Hick, Dorothea Megarani, Hannah Siler, Felipe Pierezan, Shannon N. Gray, Kuttichantran Subramaniam   +6 more
wiley   +1 more source

A Small Family of Elements with Long Inverted Repeats is Located Near Sites of Developmentally Regulated DNA Rearrangement in \u3cem\u3eTetrahymena thermophila\u3c/em\u3e [PDF]

, 1994
Extensive DNA rearrangement occurs during the development of the somatic macronucleus from the germ line micronucleus in ciliated protozoans. The micronuclear junctions and the macronuclear product of a developmentally regulated DNA rearrangement in ...
Berger, Patricia J., Catt, Diana M., Ellingson, Jay Lee Edward, Karrer, Kathleen M., Wells, John M.   +4 more
core   +1 more source

The bromodomain-containing protein Ibd1 links multiple chromatin related protein complexes to highly expressed genes in Tetrahymena thermophila

, 2018
Background: The chromatin remodelers of the SWI/SNF family are critical transcriptional regulators. Recognition of lysine acetylation through a bromodomain (BRD) component is key to SWI/SNF function; in most eukaryotes, this function is attributed to ...
Burtch, Alyson, Fillingham, Jeffrey, Garg, Jyoti, Gingras, Anne-Claude, Lambert, Jean-Philippe, Mudalige, Cristina Thuppu, Nabeel-Shah, Syed, Pearlman, Ronald E., Ponce, Marcelo, Saettone, Alejandro   +9 more
core   +1 more source

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

Zoologica Scripta, EarlyView.
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

Chromomeres, Topologically Associating Domains and Structural Organization of Chromatin Bodies in Somatic Nuclei (Macronuclei) of Ciliates

Frontiers in Bioscience-Landmark
Background: In the twentieth century, the textbook idea of packaging genomic material in the cell nucleus and metaphase chromosomes was the presence of a hierarchy of structural levels of chromatin organization: nucleosomes ...
Vladimir Popenko, Pavel Spirin, Vladimir Prassolov, Olga Leonova   +3 more
doaj   +1 more source

A new contribution to the raptorial ciliate genus Lacrymaria (Protista: Ciliophora): a brief review and comprehensive descriptions of two new species from Changjiang Estuary

Frontiers in Microbiology, 2023
Ciliates serve as excellent indicators for water quality monitoring. However, their utilization is hindered by various taxonomic confusions. The ciliate genus Lacrymaria Bory de Saint-Vincent, 1824 is commonly found in different aquatic habitats, but its
Jin Tang, Gongaote Zhang, Junqi Guo, Lingxuan Luo, Lingxuan Luo, Jiamei Jiang, Hongbo Pan   +6 more
doaj   +1 more source

Genetic Features of the Scuticociliate Pathogen Philaster sp. Isolate FWC2 That Causes Sea Urchin Mass Mortality

Journal of Eukaryotic Microbiology, Volume 73, Issue 2, March/April 2026.
ABSTRACT A scuticociliate most closely related to Philaster apodigitiformis caused mass mortalities of diadematoid sea urchins and was cultured as Philaster sp. isolate FWC2. We sequenced the metagenomic content of this isolate, which was predicted to represent ≤ 56% of the complete genome.
Shen Jean Lim, Mya Breitbart
wiley   +1 more source