Results 11 to 20 of about 404,279 (303)

Cells collectively migrate during ammonium chemotaxis in Chlamydomonas reinhardtii

Scientific Reports, 2023
The mechanisms governing chemotaxis in Chlamydomonas reinhardtii are largely unknown compared to those regulating phototaxis despite equal importance on the migratory response in the ciliated microalga.
Gabela Nelson, Alexis Strain, Atsuko Isu, Alireza Rahnama, Ken-ichi Wakabayashi, Adam T. Melvin, Naohiro Kato   +6 more
doaj   +1 more source

Subversion of Phytomyxae Cell Communication With Surrounding Environment to Control Soilborne Diseases; A Case Study of Cytosolic Ca2+ Signal Disruption in Zoospores of Spongospora subterranea

Frontiers in Microbiology, 2022
Ca2+ signaling regulates physiological processes including chemotaxis in eukaryotes and prokaryotes. Its inhibition has formed the basis for control of human disease but remains largely unexplored for plant disease.
Jonathan Amponsah, Jonathan Amponsah, Robert S. Tegg, Tamilarasan Thangavel, Calum R. Wilson   +4 more
doaj   +1 more source

The Azospirillum brasilense Core Chemotaxis Proteins CheA1 and CheA4 Link Chemotaxis Signaling with Nitrogen Metabolism

mSystems, 2021
Bacterial chemotaxis affords motile bacteria the ability to navigate the environment to locate niches for growth and survival. At the molecular level, chemotaxis depends on chemoreceptor signaling arrays that interact with cytoplasmic proteins to control
Elena E. Ganusova, Lam T. Vo, Paul E. Abraham, Lindsey O’Neal Yoder, Robert L. Hettich, Gladys Alexandre   +5 more
doaj   +1 more source

Eukaryotic chemotaxis [PDF]

WIREs Systems Biology and Medicine, 2009
AbstractDuring eukaryotic chemotaxis, external chemical gradients guide the crawling motion of cells. This process plays an important role in a large variety of biological systems and has wide ranging medical implications. New experimental techniques including confocal microscopy and microfluidics have advanced our understanding of chemotaxis while ...
Wouter-Jan, Rappel, William F, Loomis
openaire   +2 more sources

Bayes-Optimal Chemotaxis [PDF]

Neural Computation, 2011
Chemotaxis plays a crucial role in many biological processes, including nervous system development. However, fundamental physical constraints limit the ability of a small sensing device such as a cell or growth cone to detect an external chemical gradient.
Mortimer, Duncan, Dayan, Peter, Burrage, Kevin, Goodhill, Geoffrey J.   +3 more
openaire   +4 more sources

Simplified Cell Magnetic Isolation Assisted SC² Chip to Realize “Sample in and Chemotaxis Out”: Validated by Healthy and T2DM Patients’ Neutrophils

Micromachines, 2022
Neutrophil migration in tissues critically regulates the human immune response and can either play a protective role in host defense or cause health problems. Microfluidic chips are increasingly applied to study neutrophil migration, attributing to their
Xiao Yang, Chaoru Gao, Yong Liu, Ling Zhu, Ke Yang   +4 more
doaj   +1 more source

The Novel Functions of the PLC/PKC/PKD Signaling Axis in G Protein-Coupled Receptor-Mediated Chemotaxis of Neutrophils

Journal of Immunology Research, 2015
Chemotaxis, a directional cell migration guided by extracellular chemoattractant gradients, plays an essential role in the recruitment of neutrophils to sites of inflammation.
Xuehua Xu, Tian Jin
doaj   +1 more source

Distinct Chemotaxis Protein Paralogs Assemble into Chemoreceptor Signaling Arrays To Coordinate Signaling Output

mBio, 2019
Most chemotactic motile bacteria possess multiple chemotaxis signaling systems, the functions of which are not well characterized. Chemotaxis signaling is initiated by chemoreceptors that assemble as large arrays, together with chemotaxis coupling ...
Lindsey O’Neal, Jessica M. Gullett, Anastasia Aksenova, Adam Hubler, Ariane Briegel, Davi Ortega, Andreas Kjær, Grant Jensen, Gladys Alexandre   +8 more
doaj   +1 more source

Chemotactic properties of Escherichia coli mutants having abnormal Ca2+ content [PDF]

, 1995
The calA, calC, and calD mutants of Escherichia coli are known to be sensitive to Ca2+ (R. N. Brey and B. P. Rosen, J. Bacteriol. 139:824-834, 1979).
Adler, Julius, Tisa, Louis S.
core   +3 more sources

Sperm chemotaxis in marine invertebrates and mammals

Reproductive and Developmental Medicine, 2017
Sperm respond to multiple chemical factors derived from the eggs and reorient their migratory direction – a process called chemotaxis. The chemotaxis of sperm in marine invertebrates has been established well.
Hang Kang, Na Zhao, Yi-Min Cheng, Xu-Hui Zeng   +3 more
doaj   +1 more source