Results 31 to 40 of about 2,600 (209)

Evolution of g-type lysozymes in metazoa: insights into immunity and digestive adaptations [PDF]

open access: yesFrontiers in Cell and Developmental Biology
Exploring the evolutionary dynamics of lysozymes is critical for advancing our knowledge of adaptations in immune and digestive systems. Here, we characterize the distribution of a unique class of lysozymes known as g-type, which hydrolyze key components
Krishanu Mukherjee   +2 more
doaj   +2 more sources

Physiology and evolution of voltage-gated calcium channels in early diverging animal phyla: Cnidaria, Placozoa, Porifera and Ctenophora [PDF]

open access: goldFrontiers in Physiology, 2016
Voltage-gated calcium (Cav) channels serve dual roles in the cell, where they can both depolarize the membrane potential for electrical excitability, and activate transient cytoplasmic Ca2+ signals.
Adriano Senatore, Hamad Raiss, Phuong Le
doaj   +2 more sources

Transepithelial Cytophagy by Trichoplax adhaerens F. E. Schulze (Placozoa) Feeding on Yeast [PDF]

open access: hybridZeitschrift für Naturforschung C, 1986
After accidental observations of unicellular algae trapped in the intermediate layer of Trichoplax, dead yeast cells were offered systematically as a food. Some of them could be found several hours later engulfed by the big tetraploid fibre cells closely beneath the dorsal epithelium of the animal.
H Wenderoth
openalex   +3 more sources

Evolution of glial cells: a non-bilaterian perspective [PDF]

open access: yesNeural Development
Nervous systems of bilaterian animals generally consist of two cell types: neurons and glial cells. Despite accumulating data about the many important functions glial cells serve in bilaterian nervous systems, the evolutionary origin of this abundant ...
Larisa Sheloukhova, Hiroshi Watanabe
doaj   +2 more sources

Amino acids integrate behaviors in nerveless placozoans [PDF]

open access: yesFrontiers in Neuroscience, 2023
Placozoans are the simplest known free-living animals without recognized neurons and muscles but a complex behavioral repertoire. However, mechanisms and cellular bases of behavioral coordination are unknown.
Mikhail A. Nikitin   +4 more
doaj   +2 more sources

Studying Placozoa WBR in the Simplest Metazoan Animal, Trichoplax adhaerens

open access: yesMethods Mol Biol, 2022
AbstractPlacozoans are a promising model system to study fundamental regeneration processes in a morphologically and genetically very simple animal. We here provide a brief introduction to the enigmatic Placozoa and summarize the state of the art of animal handling and experimental manipulation possibilities.
Hans-Jürgen Osigus   +7 more
openaire   +3 more sources

Trichoplax adhaerens F. E. Schulze (Placozoa): The Formation of Swarmers [PDF]

open access: hybridZeitschrift für Naturforschung C, 1988
Abstract Flageilated swarmers representing an alternative mode of asexual reproduction are budded off as hollow spheres at the dorsal surface. They are covered by cells of the dorsal epithelium and the interior cavity is lined by ventral epithelium. Fiber cells are in the interspace.
Martin Thiemann, August Ruthmann
openalex   +3 more sources

Early Animal Origin of BACE1 APP/Aβ Proteolytic Function [PDF]

open access: yesBiology
Alzheimer’s disease is characterized, in part, by the accumulation of β-amyloid (Aβ) in the brain. Aβ is produced via the proteolysis of APP by BACE1 and γ-secretase.
James A. Langeland   +6 more
doaj   +2 more sources

Tolerance of Placozoa for temperate climates: Evidence for known and new placozoan clades in the southern waters of Australia [PDF]

open access: goldPLoS One
Bree A. Wright   +9 more
openalex   +2 more sources

Transposon-derived transcription factors across metazoans

open access: yesFrontiers in Cell and Developmental Biology, 2023
Transposable elements (TE) could serve as sources of new transcription factors (TFs) in plants and some other model species, but such evidence is lacking for most animal lineages. Here, we discovered multiple independent co-options of TEs to generate 788 
Krishanu Mukherjee   +2 more
doaj   +1 more source

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