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My favorite animal, Trichoplax adhaerens
BioEssays, 2005AbstractTrichoplax adhaerens is more simply organized than any other living metazoan. This tiny marine animal looks like a irregular “hairy plate” (“tricho plax”) with a simple upper and lower epithelium and some loose cells in between. After its original description by F.E.
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Bioinformatic prediction of Trichoplax adhaerens regulatory peptides
General and Comparative Endocrinology, 2015Trichoplax adhaerens (phylum Placozoa) is a very simple organism that lacks a nervous system. However, its genome contains many genes essential for neuronal function and development. I report the results of regulatory peptide predictions for this enigmatic animal. Extensive transcriptome, genome, and predicted proteome mining allowed us to predict four
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Expression pattern of the homeobox gene Not in the basal metazoan Trichoplax adhaerens
Gene Expression Patterns, 2004The homeobox gene Not is highly conserved in Xenopus, chicken and zebrafish with an apparent role in notochord formation, which inspired the name of this distinct subfamily. Interestingly, Not genes are also well conserved in animals without notochord such as sea urchins, Drosophila or even Hydra, but appear to be highly derived in mammals.
Martinelli C, Spring J
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Disaggregation and Reaggregation of Cells of the Primitive Metazoon Trichoplax adhaerens
Differentiation, 1979Trichoplax cells can be dispersed after the action of colchicine, vinblastine, and sea water free of divalent ions. Since lumicolchicine, which is inactive against microtubules can also cause disaggregation, the plant alkaloids are thought to be bound to components of the cell membrane involved in cellular adhesion. After washing, the cells reaggregate
A. RUTHMANN, U. TERWELP
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Functional Studies of Trichoplax adhaerens Voltage-Gated Calcium Channel Activity
2020Trichoplax adhaerens is a member of the phylum Placozoa, an enigmatic group of benthic animals with remarkably simple morphology. While initial work on these organisms has primarily focused on their morphology and the development of genomic resources, Trichoplax has received increased attention as a model for studying the evolution of nervous and ...
Julia, Gauberg +2 more
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Microfilaments and microtubules in isolated fiber cells of Trichoplax adhaerens (Placozoa)
Zoomorphology, 1989Fiber cells isolated by mechanical disruption of the tissue in Ca2+-free sea water attach firmly to the substrate by discrete adhesion plaques. They are capable of forming a lamellipodium and long, slender extensions while the cell bodies remain stationary. The extensions are slowly elongated but can suddenly be withdrawn by contraction.
Martin Thiemann, August Ruthmann
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Trichoplax adhaerens F.E. Schulze (placozoa) in the scanning electron microscope
Zoomorphologie, 19791. The dorsal epithelium consists of flattened polygonal cells with various surface modifications including ruffles, microvilli-like projections, and small protruding vesicles. A double ridge arises where adjacent cells meet. The refractile lipid globules reach almost to the surface not by a pore, but by a slit between adjoining cells. There is some
Jürgen Rassat, August Ruthmann
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Adherens Junctions Modulate Diffusion between Epithelial Cells inTrichoplax adhaerens
The Biological Bulletin, 2016Trichoplax adhaerens is the sole named member of Placozoa, an ancient metazoan phylum. This coin-shaped animal glides on ventral cilia to find and digest algae on the substrate. It has only six cell types, all but two of which are incorporated into the epithelium that encloses it. The upper epithelium is thin, composed of a pavement of relatively large
Carolyn L, Smith, Thomas S, Reese
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On development and evolution of Trichoplax adhaerens (Placozoa)
2011[no abstract]
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Zoomorphology, 1986
All cilia emerge from ciliary pits supported along their circumference by 22–24 dense rodlets that are connected by filaments to a surrounding sheath of endoplasmic reticulum. The proximal part of the basal body is provided with two short lateral rootlets and one long terminal rootlet, all associated with microtubules.
August Ruthmann +2 more
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All cilia emerge from ciliary pits supported along their circumference by 22–24 dense rodlets that are connected by filaments to a surrounding sheath of endoplasmic reticulum. The proximal part of the basal body is provided with two short lateral rootlets and one long terminal rootlet, all associated with microtubules.
August Ruthmann +2 more
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