Results 31 to 40 of about 8,154 (184)

microRNA‐mediated control of cell fate specification and patterning in Marchantia polymorpha

New Phytologist, EarlyView.
The gemma developmental program in Marchantia polymorpha is coordinated by MpMIR166‐mediated repression of MpC3HDZ and auxin homeostasis. Summary MicroRNAs (miRNAs) are small non‐coding RNA molecules essential for growth and development in eukaryotes. In plants, the master gene DICER‐LIKE 1 (DCL1) catalyzes the biogenesis of miRNAs by processing double‐
Adolfo Aguilar‐Cruz, Eduardo Flores‐Sandoval, Ye Xu, Yu Yu, Ximena Gutiérrez‐Ramos, Cristian Y. González‐Rangel, Omar Oltehua‐López, Ana E. Dorantes‐Acosta, Joshua T. Trujillo, Hirotaka Kato, Kimitsune Ishizaki, Rebecca A. Mosher, Liam Dolan, Xuemei Chen, Daniel Grimanelli, Jim Haseloff, John L. Bowman, Mario A. Arteaga‐Vazquez   +17 more
wiley   +1 more source

Circadian regulation of reproduction and neoblast cell division in the catenulid flatworm Stenostomum virginianum (Platyhelminthes)

Photochemistry and Photobiology, EarlyView.
The circadian clock and melatonin coordinate homeostasis in many animals, yet their influence on reproduction and neoblast proliferation has only been shown in triclads. This study demonstrates that the early‐branching catenulid Stenostomum virginianum contains photoreceptive refractile bodies, synthesizes endogenous melatonin, and that exogenous ...
Daniel L. Stanton, Ian D. Deas, J. Kennon Smith, Samuel B. Robinson, Adam M. Reitzel, Julian P. S. Smith III   +5 more
wiley   +1 more source

Energy Allocation Explains How Protozoan Phenotypic Traits Change in Response to Temperature and Resource Supply

Ecology and Evolution, Volume 16, Issue 8, August 2026.
When cultures of the microorganism Tetrahymena pyriformis are transferred to environments with different temperature and resource levels, the phenotypic traits of the microorganisms—including cell size, metabolic rate, and movement speed—change.
Andrea Perna, Enrico S. Rivoli, Julia Reiss, Daniel M. Perkins   +3 more
wiley   +1 more source

Structural maintenance of chromosomes (SMC) proteins are required for DNA elimination in Paramecium

Life Science Alliance
This work focuses on two functionally distinct paralogues of SMC4 in Paramecium. SMC4-1 appears to have a classical function as a condensin subunit whereas SMC4-2 is required for developmental DNA elimination process.
Fukai Zhang, Sebastian Bechara, Mariusz Nowacki   +2 more
doaj   +1 more source

Rare Freshwater Ciliate Paramecium chlorelligerum Kahl, 1935 and Its Macronuclear Symbiotic Bacterium "Candidatus Holospora parva". [PDF]

PLoS ONE, 2016
Ciliated protists often form symbioses with many diverse microorganisms. In particular, symbiotic associations between ciliates and green algae, as well as between ciliates and intracellular bacteria, are rather wide-spread in nature.
Olivia Lanzoni, Sergei I Fokin, Natalia Lebedeva, Alexandra Migunova, Giulio Petroni, Alexey Potekhin   +5 more
doaj   +1 more source

Biosynthesis of Sciadonic Acid Derived from Gymnosperms with Anti‐Colitis Activity

Advanced Science, Volume 13, Issue 42, 28 July 2026.
This study establishes an efficient Yarrowia lipolytica platform for unusual sciadonic acid (SCA) production and assess the anti‐colitis efficacy in mice of SCA, supporting its potential as a novel therapeutic lipid. ABSTRACT Sciadonic acid (SCA), Δ5‐unsaturated fatty acid with anti‐inflammatory and lipid‐regulatory properties, is predominantly derived
Yadi Gao, Wei Liu, Xiuping Liang, Jie Bai, Hong Chang, Wenchao Chen, Mohamed A. Farag, Jianbo Xiao, Huifeng Jiang, Jiasheng Wu, Lili Song   +10 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

An Attention‐Assisted Machine Learning System for Deep Microorganism Image Classification

Advanced Intelligent Systems, Volume 8, Issue 7, July 2026.
An attention‐assisted DenseNet201 framework was developed for the classification of eight microorganism classes from microscopic images. The proposed model improved classification performance and achieved an accuracy of 87.38%. Advances in microbiology and environmental health fundamentally depend on precise and timely microorganism identification ...
Yujie Li, Ailing Gao, Guoxu Liu, Chunlei Chen, Yonghui Zhang, Sunkyoung Kang, M. Khosravi   +6 more
wiley   +1 more source

Cytoprotective properties of the nerve growth factor and brain derived neurotrophic factor dipeptidic mimetics, GK-2 AND GSB-106, in the model of oxidative stress in paramecium caudatum

Фармакокинетика и Фармакодинамика, 2018
Resume. Actuality. Dimeric dipeptide mimics of the nerve growth factor ( NGF) and brain derived neurotrophic factor (BDNF), respectively GK-2 and GSB-106, were created in the V.V. Zakusov Institute of pharmacology.
O. V. Karpukhina, A. N. Inozemtsev, K. Z. Gumargalieva, P. Yu. Povarnina, T. A. Gudasheva   +4 more
doaj   +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