Results 51 to 60 of about 41,241 (205)

Reduced Food Availability Amplifies Behavioral Depression and Impairs Locomotor Performance After Immune Challenge in Xenopus laevis

Journal of Experimental Zoology Part A: Ecological and Integrative Physiology, EarlyView.
Food restricition amplifies the reduction in voluntary locomotion after immune challenge in Xenopus laevis, ilustrating the energetic trade‐off between immunity and performance. ABSTRACT Mounting an immune response and locomotor activity are energetically costly processes that can generate trade‐offs affecting energy allocation, muscle performance, and
Thaysa G. Oliveira, Laurie Araspin, Laura Camila C. Olarte, Carlos A. Navas, Anthony Herrel   +4 more
wiley   +1 more source

Noncanonical Nucleotides in the Genome Around the Maternal‐Zygotic Transition

Journal of Experimental Zoology Part B: Molecular and Developmental Evolution, EarlyView.
In this paper, Kazzazi et al. provide a comprehensive review of the dynamics of nonconventional nucleotides in the genome during early developmental stages, hypothesizing a potential role for these nucleotides in the activation of the zygotic genome. ABSTRACT From the very moment of fertilization and throughout development, the cells of animal embryos ...
Latifa Kazzazy, Dávid Mező, Kinga K. Nagy, Viktória Perey‐Simon, Judit Tóth, Angéla Békési, Beáta Vértessy, Máté Varga   +7 more
wiley   +1 more source

The ecology and evolution of the model species Xenopus laevis

Frontiers in Ecology and Evolution
The African clawed frog Xenopus laevis has been a cornerstone of experimental biology for over a century, but its value as a model organism extends far beyond embryology.
Dareen Almojil, John Measey, Stéphane Boissinot, Stéphane Boissinot   +3 more
doaj   +1 more source

A formalization of one of the main claims of “Cortex reorganization of Xenopus laevis eggs in strong static magnetic fields” by Mietchen et al. 2005

Data Science, 2022
Mietchen et al. claimed in previous work that strong static magnetic fields change the cell cortex in dejellied fertilizable stage VI Xenopus lavis oocytes.
Daniel Mietchen
doaj   +1 more source

Calpain Proteases and the Evolving Signaling Network in Insect Embryonic Patterning

Journal of Experimental Zoology Part B: Molecular and Developmental Evolution, EarlyView.
Insect embryonic Dorsal‐Ventral (DV) patterning relies on the BMP and Toll pathways to different extents. Calcium‐dependent cystein proteases of the Calpain family also exert an important function to pattern the DV axis. In Drosophila, Calpain A cleaves the Cactus/IkappaB inhibitor and modifies Toll signals in ventral regions of the embryo. In Rhodnius
Alison Julio, Helena Araujo
wiley   +1 more source

Sex-specific functional evolution of Dmrt1 in African clawed frogs (Xenopus), and the importance of genetic tipping points in developmental biology.

PLoS Genetics
The doublesex and mab-3 related transcription factor 1 (dmrt1) plays a crucial role in metazoan sexual differentiation. This gene, or its paralogs, independently became triggers for sex determination several times, including in the tetraploid African ...
Lindsey M Kukoly, Sarah R Porter, Danielle C Jordan, Heather A Murphy, Martin Knytl, Nikko Shaidani, William R Thomas, Carl Anderson, Ian Dworkin, Marko E Horb, Ben J Evans   +10 more
doaj   +1 more source

Multimodal targets of (‐)‐α‐thujone mediating avoidance behavior of a stored‐products pest, Tribolium castaneum, in response to irritant stimuli

Pest Management Science, EarlyView.
We identified four kinds of target molecules against (‐)‐α‐thujone associating avoidance behavior in Tribolium castaneum, indicating multimodality. Abstract BACKGROUND The reciprocal evolutionary processes among phytophagous insects and host plants involve host shift in the herbivorous insects in response to defense chemicals, such as plant‐derived ...
Kenji Shimomura, Yuto Suzuki, Soshi Ino, Takehito Terajima, Motohiro Tomizawa   +4 more
wiley   +1 more source

Cross‐Linking Mass Spectrometry of the Antimicrobial Peptides Magainin 2 and PGLa Reveals Heterodimerization in Micellar Medium

Rapid Communications in Mass Spectrometry, EarlyView.
ABSTRACT Rationale In this study, we applied cross‐linking mass spectrometry (XL‐MS) to characterize the oligomeric states of a PGLa/magainin 2 mixture and gain insight into the heterodimerization previously suggested in the literature. Both peptides have shown a synergistic enhancement of activity when tested in antimicrobial assays; however, the ...
Emilie Hirschler, Elise Glattard, Nicolas Arnaud, Johana Chicher, Philippe Hammann, Emmanuelle Leize‐Wagner, Burkhard Bechinger, Noelle Potier   +7 more
wiley   +1 more source

Geographical Variation in Thermal Adaptation of the Asiatic Toad (Bufo gargarizans)

Integrative Zoology, EarlyView.
Northern and southern populations of Bufo gargarizans exhibit coordinated divergence in thermal preference, resting metabolic rate, and TRPM4 temperature sensitivity along a climatic gradient. ABSTRACT Thermal adaptation in animals can manifest in multiple dimensions, yet few studies have integrated behavioral, physiological, and molecular perspectives
Longcheng Fan, Yonghua Wu
wiley   +1 more source

Probing the Xenopus laevis inner ear transcriptome for biological function

BMC Genomics, 2012
Background The senses of hearing and balance depend upon mechanoreception, a process that originates in the inner ear and shares features across species.
Powers TuShun R, Virk Selene M, Trujillo-Provencio Casilda, Serrano Elba E   +3 more
doaj   +1 more source