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Developmental expression of glutamic acid decarboxylase and of γ‐aminobutyric acid type B receptors in the ascidian Ciona intestinalis
TLDR
Results from this work show that GABA is the most widespread inhibitory neurotransmitter in C. intestinalis nervous system and that it can signal through GABAB receptors both pre‐ and postsynaptically to modulate different sensory inputs and subsequent swimming activity. Expand
Gorgonian population recovery after a mass mortality event
TLDR
The average size of the colonies decreased, indicating a size-dependent mortality episode, but their density, as a result of successful recruitment, was not altered after 3 yr, and P. clavata showed three recovery patterns: sexual reproduction, coenenchyme regeneration and fragmentation of affected branches. Expand
Toxic effects of two pesticides, Imazalil and Triadimefon, on the early development of the ascidian Phallusia mammillata (Chordata, Ascidiacea).
TLDR
Toxicity tests on sperm viability, fertilization and embryogenesis of the solitary ascidian Phallusia mammillata were performed to evaluate the effects of two azole derivatives, Imazalil and Triadimefon, and Ascidians proved to be good models to study the toxic effects of pesticides. Expand
Dopamine and serotonin modulate the onset of metamorphosis in the ascidian Phallusia mammillata.
TLDR
A mechanism by which these neurotransmitters may modulate the timing of metamorphosis in larvae is proposed, which is possible to suppose that dopamine signaling delayed meetamorphosis while serotonin signaling triggers it. Expand
Development of swimming behaviour in the larva of the ascidian Ciona intestinalis
TLDR
It is shown that Ciona larvae swim for longer periods and more frequently during the first hours after hatching, and this results provide a starting point for future studies that aim to characterize the nervous control of ascidian locomotion, in wild-type or mutant larvae. Expand
Effects of the azole fungicide Imazalil on the development of the ascidian Ciona intestinalis (Chordata, Tunicata): morphological and molecular characterization of the induced phenotype.
TLDR
Testing the effects of IMA on the development of the solitary ascidian Ciona intestinalis by treating two-cell stage embryos showed that this fungicide could affect the differentiation of the anterior nervous system, particularly of the sensory vesicle neurons. Expand
Immunohistochemical analysis of the adhesive papillae of Botrylloides leachi (Chordata, Tunicata, Ascidiacea): Implications for their sensory function
TLDR
By immunohistochemical localization of serotonin and β‐tubulin, it is demonstrated that the adhesive papillae of Botrylloides leachi contain two distinct types of neurons with different localization and possibly a different function. Expand
WAY-100635, an antagonist of 5-HT1A receptor, causes malformations of the CNS in ascidian embryos
TLDR
Immunofluorescence experiments showed that the anterior neural system of treated animals was radically altered by the action of the drug in a dose-dependent way, suggesting that 5-HT plays a role in the development of the neural system in ascidians and its action is mediated by receptors similar to the members of the 5- HT1A receptor subtype of mammals. Expand
Complex neural architecture in the diploblastic larva of Clava multicornis (Hydrozoa, Cnidaria)
The organization of the cnidarian nervous system has been widely documented in polyps and medusae, but little is known about the nervous system of planula larvae, which give rise to adult forms afterExpand
Serotonin involvement in the metamorphosis of the hydroid Eudendrium racemosum.
TLDR
Results showed that 5-HT could stimulate metamorphosis in E. racemosum planulae in the presence of a natural inducer and a mechanism by which this neurotransmitter could act in this phase is proposed. Expand
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