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Establishment of endosymbiosis: The case of cnidarians and Symbiodinium [PDF]
Journal of Experimental Marine Biology and Ecology, 2012 peer reviewedThe symbiosis between cnidarians and Symbiodinium algae (dinoflagellates) is the keystone responsible for the formation of the huge and important structures that are coral reefs.
Stéphane Roberty +1 more
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Back to the Basics: Cnidarians Start to Fire [PDF]
Trends in Neurosciences, 2017 The nervous systems of cnidarians, pre-bilaterian animals that diverged close to the base of the metazoan radiation, are structurally simple and thus have great potential to reveal fundamental principles of neural circuits. Unfortunately, cnidarians have
Gaspar Jékely +2 more
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Journal of Experimental Zoology, 1991
AbstractHomeoboxes have previously been documented from various phyla of triploblastic, coelomate and pseudocoelomate, animals. We report here the first homeoboxes from cnidarians, a phylum of diploblastic organisms thought to occupy a near‐basal position in metazoan phylogeny.
B, Schierwater +4 more
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AbstractHomeoboxes have previously been documented from various phyla of triploblastic, coelomate and pseudocoelomate, animals. We report here the first homeoboxes from cnidarians, a phylum of diploblastic organisms thought to occupy a near‐basal position in metazoan phylogeny.
B, Schierwater +4 more
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The nervous systems of Cnidarians
1995Cnidarians have simple nervous systems and it was probably within this group or a closely-related ancestor that nervous systems first evolved. The basic plan of the cnidarian nervous system is that of a nerve net which, at some locations, has condensed to form nerve plexuses, or circular or longitudinal nerve tracts which may be syncytia.
Grimmelikhuijzen, Cornelis J.P. +1 more
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The nature of cnidarian desmocytes
Tissue and Cell, 1969The electron microscope reveals that the cnidarian desmocyte is an ectodermal cell which forms acidophil protein tonofibrillae intracellularly. One end of the cell is bound to mesogleal fibrils; the other becomes embedded in the thickening cuticle. The bundle of tonofibrillae later becomes rivet-shaped and the cell dies, but still the mesoglea remains ...
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The importance of cnidarian synapses for neurobiology
Journal of Neurobiology, 1989AbstractDespite being the most primitive organisms to possess a nervous system, cnidarians afford rare opportunities for studying various, general aspects of chemical synaptic transmission. This is made possible by the unique organization of their nervous systems and by the fact that in certain species the neurons and synapses are readily accessible ...
P A, Anderson, A N, Spencer
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Nature Ecology & Evolution, 2017
A focus on sea anemones throws the classic concept of germ layer homology on its head, as cnidarians are found to possess the gene expression programmes for three, rather than two, germ layers.
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A focus on sea anemones throws the classic concept of germ layer homology on its head, as cnidarians are found to possess the gene expression programmes for three, rather than two, germ layers.
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2009
Abstract The Phylum Cnidaria is ancient and diverse in terms of size and body shape, and includes the sea fans, sea pens, sea anemones, corals, hydroids, and jellyAsh (Fig. 1). Cnidarians possess two cell layers (diploblastic), the outer ectoderm and the inner endoderm, separated by an acellular mesoglea, or partially cellular mesenchyme
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Abstract The Phylum Cnidaria is ancient and diverse in terms of size and body shape, and includes the sea fans, sea pens, sea anemones, corals, hydroids, and jellyAsh (Fig. 1). Cnidarians possess two cell layers (diploblastic), the outer ectoderm and the inner endoderm, separated by an acellular mesoglea, or partially cellular mesenchyme
exaly +2 more sources
2018
To understand the ancestral and evolved roles of zic homologs, it is important to reconstruct the putative roles of ancient zic homologs in the animal phylogeny. Most studies of zic genes have been conducted in model systems that are members of the bilaterian phylum. However, two additional phyla have zic homologs encoded in their genomes.
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To understand the ancestral and evolved roles of zic homologs, it is important to reconstruct the putative roles of ancient zic homologs in the animal phylogeny. Most studies of zic genes have been conducted in model systems that are members of the bilaterian phylum. However, two additional phyla have zic homologs encoded in their genomes.
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Canadian Journal of Zoology, 2002
Cnidarians are the most primitive present-day invertebrates to have multicellular light-detecting organs, called ocelli (eyes). These photodetectors include simple eyespots, pigment cups, complex pigment cups with lenses, and camera-type eyes with a cornea, lens, and retina.
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Cnidarians are the most primitive present-day invertebrates to have multicellular light-detecting organs, called ocelli (eyes). These photodetectors include simple eyespots, pigment cups, complex pigment cups with lenses, and camera-type eyes with a cornea, lens, and retina.
openaire +1 more source