Results 21 to 30 of about 2,600 (209)

Bioeffects of Prunus spinosa L. fruit ethanol extract on reproduction and phenotypic plasticity of Trichoplax adhaerens Schulze, 1883 (Placozoa) [PDF]

PeerJ, 2019
The aim of this work was to test and analyse the bioeffects of Prunus spinosa L. (Rosacaee) fruit ethanol extract on Trichoplax adhaerens Schulze, 1883 (Placozoa) laboratory cultures which—for the first time—were employed as in vivo biological model to ...
Maria Cristina Albertini, Daniele Fraternale, Federica Semprucci, Silvio Cecchini, Mariastella Colomba, Marco B.L. Rocchi, Davide Sisti, Barbara Di Giacomo, Michele Mari, Luigia Sabatini, Lucia Cesaroni, Maria Balsamo, Loretta Guidi   +12 more
doaj   +3 more sources

Expansion microscopy in Placozoa: improving resolution and preservation of fragile samples during marine expedition

Frontiers in Marine Science
Placozoa are small disc-shaped animals representing one of the early branching metazoan lineages with only a dozen cell types, fast effector reactions, and complex behaviors.
Daria Y. Romanova, Yana A. Frank, Leonid L. Moroz, Leonid L. Moroz   +3 more
doaj   +2 more sources

Long-term dynamics of placozoan culture: emerging models for population and space biology [PDF]

Frontiers in Cell and Developmental Biology
As the simplest free-living animal, Trichoplax adhaerens (Placozoa) is emerging as a powerful paradigm to decipher molecular and cellular bases of behavior, enabling integrative studies at all levels of biological organization in the context of metazoan ...
Daria Y. Romanova, Alexander A. Povernov, Mikhail A. Nikitin, Simkha I. Borman, Yana A. Frank, Leonid L. Moroz, Leonid L. Moroz   +6 more
doaj   +2 more sources

Parallel evolution of gravity sensing [PDF]

Frontiers in Cell and Developmental Biology
Omnipresent gravity affects all living organisms; it was a vital factor in the past and the current bottleneck for future space exploration. However, little is known about the evolution of gravity sensing and the comparative biology of gravity reception.
Daria Y. Romanova, Leonid L. Moroz, Leonid L. Moroz   +2 more
doaj   +2 more sources

The Mesenchyme-Like Layer of the Fiber Cells of Trichoplax adhaerens (Placozoa), a Syncytium [PDF]

Zeitschrift für Naturforschung C, 1995
Abstract The fiber cells of the middle layer of Trichoplax adhaerens are interconnected by slender extensions. Newly formed connections after mechanical disruption of the tissue studied in ultrathin sections revealed cytoplasmic continuity between the cell bodies, suggesting a syncytial organisation of the fiber cell layer.
Katja Buchholz, August Ruthmann
openalex   +4 more sources

The early ANTP gene repertoire: insights from the placozoan genome. [PDF]

PLoS ONE, 2008
The evolution of ANTP genes in the Metazoa has been the subject of conflicting hypotheses derived from full or partial gene sequences and genomic organization in higher animals.
Bernd Schierwater, Kai Kamm, Mansi Srivastava, Daniel Rokhsar, Rafael D Rosengarten, Stephen L Dellaporta   +5 more
doaj   +5 more sources

Evolution of the Cdk4/6–Cdkn2 system in invertebrates [PDF]

Genes to Cells, Volume 29, Issue 11, Page 1037-1051, November 2024.
Hypothesis on the evolution of the Cdkn2 locus. (a) Loss of Cdkn2 occurred multiple times. (b) Evolution of microsynteny at the Cdkn2 locus. Cdkn2e is a hypothetical transient gene. Abstract The cell cycle is driven by cyclin‐dependent kinases (Cdks). The decision whether the cell cycle proceeds is made during G1 phase, when Cdk4/6 functions.
Shiori Yuki, Shunsuke Sasaki, Yuta Yamamoto, Fumika Murakami, Kazumi Sakata, Isato Araki   +5 more
wiley   +2 more sources

A taxogenomics approach uncovers a new genus in the phylum Placozoa [PDF]

, 2017
AbstractThe Placozoa [1] is a monotypic phylum of non-bilaterian marine animals. Its only species,Trichoplax adhaerens, was described in 1883 [2], Despite the worldwide distribution of placozoans [3–6], morphological differences are lacking among isolates from different geographic areas and, consequently, no other species in this phylum has been ...
Michael Eitel, Warren R. Francis, Hans‐Jürgen Osigus, Stefan Krebs, Sergio Vargas, Helmut Blum, Gray A. Williams, Bernd Schierwater, Gert Wörheide   +8 more
openalex   +3 more sources

Hidden cell diversity in Placozoa: ultrastructural insights from Hoilungia hongkongensis [PDF]

Cell and Tissue Research, 2021
AbstractFrom a morphological point of view, placozoans are among the most simple free-living animals. This enigmatic phylum is critical for our understanding of the evolution of animals and their cell types. Their millimeter-sized, disc-like bodies consist of only three cell layers that are shaped by roughly six major cell types. Placozoans lack muscle
Daria Y. Romanova, Frédérique Varoqueaux, Jean Daraspe, М. А. Никитин, Michael Eitel, Dirk Fasshauer, Leonid L. Moroz   +6 more
openalex   +6 more sources

The homeodomain complement of the ctenophore Mnemiopsis leidyi suggests that Ctenophora and Porifera diverged prior to the ParaHoxozoa [PDF]

EvoDevo, 2010
Background The much-debated phylogenetic relationships of the five early branching metazoan lineages (Bilateria, Cnidaria, Ctenophora, Placozoa and Porifera) are of fundamental importance in piecing together events that occurred early in animal evolution.
Ryan Joseph F, Pang Kevin, Mullikin James C, Martindale Mark Q, Baxevanis Andreas D   +4 more
doaj   +4 more sources