Results 71 to 80 of about 32,903 (300)

Wall Drag on Free-Moving Ciliated Micro-Organisms [PDF]

, 1973
It is generally assumed that wall drag on free-moving, self-propelled or passively moving micro-organisms is not significant under normal observation conditions. Yet the point at which such drag becomes significant has not been determined quantitatively.
Winet, H.
core  

Surrogate GPR139 Agonists Reverse Short‐Term Startle Habituation Impairment in Larval Zebrafish

The FASEB Journal, Volume 39, Issue 10, 31 May 2025.
Startled habituation deficit is a common cognitive symptom of schizophrenia patients. In blocks of repetitive startle stimuli delivery, MK‐801‐induced larval zebrafish showed a non‐habituating behavior to startle stimuli. A recovery on startle habituation occurred with co‐exposure of MK‐801 and GPR139 agonists.
Teck Fong Kow, Siew Ying Mok, Pek Yee Tang, Lor Huai Chong, Satoshi Ogawa   +4 more
wiley   +1 more source

Cross-study analysis of genomic data defines the ciliate multigenic epiplasmin family: strategies for functional analysis in Paramecium tetraurelia

BMC Evolutionary Biology, 2009
Background The sub-membranous skeleton of the ciliate Paramecium, the epiplasm, is composed of hundreds of epiplasmic scales centered on basal bodies, and presents a complex set of proteins, epiplasmins, which belong to a multigenic family.
Ravet Viviane, Viguès Bernard, Coffe Gérard, Bricheux Geneviève, Pomel Sébastien, Damaj Raghida, Bouchard Philippe   +6 more
doaj   +1 more source

Analysis of carbohydrates and glycoconjugates by matrix‐assisted laser desorption/ionization mass spectrometry: An update for 2021–2022

Mass Spectrometry Reviews, Volume 44, Issue 3, Page 213-453, May/June 2025.
Abstract The use of matrix‐assisted laser desorption/ionization (MALDI) mass spectrometry for the analysis of carbohydrates and glycoconjugates is a well‐established technique and this review is the 12th update of the original article published in 1999 and brings coverage of the literature to the end of 2022.
David J. Harvey
wiley   +1 more source

Integrating food webs in species distribution models can improve ecological niche estimation and predictions

Ecography, Volume 2025, Issue 5, May 2025.
Biotic interactions play a fundamental role in shaping multitrophic species communities, yet incorporating these interactions into species distribution models (SDMs) remains challenging. With the growing availability of species interaction networks, it is now feasible to integrate these interactions into SDMs for more comprehensive predictions.
Giovanni Poggiato, Jérémy Andréoletti, Laura J. Pollock, Wilfried Thuiller   +3 more
wiley   +1 more source

Arrest of cytoplasmic streaming induces algal proliferation in green paramecia. [PDF]

PLoS ONE, 2007
A green ciliate Paramecium bursaria, bearing several hundreds of endosymbiotic algae, demonstrates rotational microtubule-based cytoplasmic streaming, in which cytoplasmic granules and endosymbiotic algae flow in a constant direction.
Toshiyuki Takahashi, Yohji Shirai, Toshikazu Kosaka, Hiroshi Hosoya   +3 more
doaj   +1 more source

Biochemical genetics [PDF]

, 1951
The field under review is growing so rapidly that it is impossible to cover more than a sampling of recent papers in the allotted space. Important subjects such as the genetics and chemistry of viruses and certain topics in bacterial genetics have had ...
Horowitz, N. H., Mitchell­, H. K.
core   +1 more source

Algal Symbiont Diversity and Host Fitness Variation in Amoebozoan Photosymbiosis

Journal of Eukaryotic Microbiology, Volume 72, Issue 3, May/June 2025.
ABSTRACT Photosymbioses, the symbiotic relationships between microalgae and non‐photosynthetic eukaryotes, are sporadically found in many eukaryotic lineages. Only a few taxa, such as cnidarians and ciliates hosting algal endosymbionts, have been actively studied, which has hindered understanding the universal mechanisms of photosymbiosis establishment.
Daisuke Yamagishi, Ryo Onuma, Sachihiro Matsunaga, Shin‐ya Miyagishima, Shinichiro Maruyama   +4 more
wiley   +1 more source

The Paramecium germline genome provides a niche for intragenic parasitic DNA: evolutionary dynamics of internal eliminated sequences. [PDF]

PLoS Genetics, 2012
Insertions of parasitic DNA within coding sequences are usually deleterious and are generally counter-selected during evolution. Thanks to nuclear dimorphism, ciliates provide unique models to study the fate of such insertions.
Olivier Arnaiz, Nathalie Mathy, Céline Baudry, Sophie Malinsky, Jean-Marc Aury, Cyril Denby Wilkes, Olivier Garnier, Karine Labadie, Benjamin E Lauderdale, Anne Le Mouël, Antoine Marmignon, Mariusz Nowacki, Julie Poulain, Malgorzata Prajer, Patrick Wincker, Eric Meyer, Sandra Duharcourt, Laurent Duret, Mireille Bétermier, Linda Sperling   +19 more
doaj   +1 more source

Development of Antisense Tools to Study Bodo saltans and Its Intracellular Symbiont

MicrobiologyOpen, Volume 14, Issue 2, April 2025.
Obligate symbioses present challenges for functional genetic analysis. This study shows that antisense inhibition cannot be used to investigate gene functions in the aquatic symbiosis between Bodo saltans and its bacterial symbiont. Our work stresses the importance of the development of alternative protocols to study the biology of both the ...
Mastaneh Ahrar, Lorna Glenn, Marie Held, Andrew Jackson, Krzysztof Kus, Gregory D. D. Hurst, Ewa Chrostek   +6 more
wiley   +1 more source