Results 111 to 120 of about 3,289 (189)

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

open access: yesZeitschrift 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
openaire   +1 more source

A Tale of Two Drug Targets: The Evolutionary History of BACE1 and BACE2

open access: yesFrontiers in Genetics, 2013
The beta amyloid (APP) cleaving enzyme (BACE1) has been a drug target for Alzheimer's Disease (AD) since 1999 with lead inhibitors now entering clinical trials.
Christopher eSouthan, John eHancock
doaj   +1 more source

Emergence, development and diversification of the TGF-β signalling pathway within the animal kingdom

open access: yesBMC Evolutionary Biology, 2009
Background The question of how genomic processes, such as gene duplication, give rise to co-ordinated organismal properties, such as emergence of new body plans, organs and lifestyles, is of importance in developmental and evolutionary biology.
Moustakas Aristidis   +5 more
doaj   +1 more source

Notizen: Spezifische Verbindungsstrukturen der Faserzellen von Trichoplax adhaerens F. E. Schulze/Special Connecting Structures between Fiber Cells of Trichoplax adhaerens F. E. Schulze

open access: yesZeitschrift für Naturforschung C, 1974
Abstract In the primitive metazoan, Trichoplax adhaerens, the fiber cells are responsible for the change of shape. Electron microscopy reveals connections between protoplasmic strands of neighbouring cells marked by an osmiophilic disc-like structure. Possible functions are discussed.
F Schulze   +3 more
openaire   +1 more source

A clustered set of three Sp-family genes is ancestral in the Metazoa: evidence from sequence analysis, protein domain structure, developmental expression patterns and chromosomal location

open access: yesBMC Evolutionary Biology, 2010
Background The Sp-family of transcription factors are evolutionarily conserved zinc finger proteins present in many animal species. The orthology of the Sp genes in different animals is unclear and their evolutionary history is therefore controversially ...
Wimmer Ernst A   +2 more
doaj   +1 more source

Ein neues kulturverfahren für trichoplax adhaerens f. e. schulze / A new cultural method for trichoplax adhaerens f. e. schulze

open access: yesZeitschrift für Naturforschung C, 1983
The primitive metazoon, Trichoplax adhaerens (Placozoa), can easily be cultivated with Nauplius larvae of the brine shrimp, Artemia salina, killed by heating, as food ...
openaire   +1 more source

Origin and diversification of steroids: Co-evolution of enzymes and nuclear receptors [PDF]

open access: yes, 2010
Recent sequencing of amphioxus and sea urchin genomes has provided important data for understanding the origins of enzymes that synthesize adrenal and sex steroids and the receptors that mediate physiological response to these vertebrate steroids ...
Michael E. Baker
core   +1 more source

Das radialpolare Differenzierungsmuster bei Trichoplax adhaerens F. E. Schulze (Placozoa) / The Radial Polar Pattern of Differentiation in Trichoplax adhaerens F. E. Schulze (Placozoa)

open access: yesZeitschrift für Naturforschung C, 1984
Abstract In contrast with the outmost uniform aspect of Trichoplax there is a clear cut differentiation between marginal and central cell territories. Dissection and transplantation as well as vital staining show that the marginal material is restricted to a seam approximately 20 μm in width, surrounding the much larger mass of central ...
openaire   +1 more source

Thermotaxis in an apolar, non-neuronal animal. [PDF]

open access: yesJ R Soc Interface, 2023
Zhong G, Kroo L, Prakash M.
europepmc   +1 more source

Mionelminthes, Trichoplax und Trematodes.

open access: yes, 1879
H. Alexander Pagenstecher   +1 more
openaire   +2 more sources

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