Results 21 to 30 of about 17,384 (223)

Presence of cytochrome P450 in the Caribbean corals Siderastrea siderea and Montastraea faveolata

open access: yesCiencias Marinas, 2005
Cytochrome P450 was detected in the animal tissue of the scleractinian corals Siderastrea siderea and Montastraea faveolata collected from a reef site on the west coast of Venezuela.
E García, R Ramos, C Bastidas
doaj   +1 more source

Ecotoxicity of Polyvinylidene Difluoride (PVDF) and Polylactic Acid (PLA) Microplastics in Marine Zooplankton

open access: yesToxics, 2022
The aim of this study was to investigate the ecotoxicity of polyvinylidene difluoride (PVDF) and polylactic acid (PLA) microplastics (MPs) in two marine zooplankton: the crustacean Artemia franciscana and the cnidarian Aurelia sp. (common jellyfish).
Michela Di Giannantonio   +9 more
doaj   +1 more source

Independent elaboration of steroid hormone signaling pathways in Metazoans [PDF]

open access: yes, 2009
Steroid hormones regulate many physiological processes in vertebrates, nematodes and arthropods through binding to nuclear receptors (NR), a metazoan-specific family of ligand-activated transcription factors.
Gabriel V. Markov   +5 more
core   +3 more sources

Varied effects of algal symbionts on transcription factor NF-κB in a sea anemone and a coral: possible roles in symbiosis and thermotolerance [PDF]

open access: yes, 2019
Many cnidarians, including the reef-building corals, undergo symbiotic mutualisms with photosynthetic dinoflagellate algae of the family Symbiodiniaceae.
Benson, Brooke E.   +11 more
core   +1 more source

Symbiont diversity is not involved in depth acclimation in the Mediterranean sea whip Eunicella singularis [PDF]

open access: yes, 2011
In symbiotic cnidarians, acclimation to depth and lower irradiance can involve physiological changes in the photosynthetic dinoflagellate endosymbiont, such as increased chlorophyll content, or qualitative modifications in the symbiont population in ...
Allemand, D.   +7 more
core   +2 more sources

Cnidarian milestones in metazoan evolution [PDF]

open access: yesIntegrative and Comparative Biology, 2007
Cnidarians display most of the characters considered as milestones of metazoan evolution. Whereas a tissue-level organization was probably already present in the multicellular common ancestor of all animals, the Urmetazoa, the emergence of important animal features such as bilateral symmetry, triploblasty, a polarized nervous system, sense organs (eyes,
BOERO, Ferdinando   +2 more
openaire   +2 more sources

Effects of hypoxia on benthic macrofauna and bioturbation in the Estuary and Gulf of St. Lawrence, Canada [PDF]

open access: yes, 2010
The bottom water in the 4300 m deep Lower St. Lawrence Estuary (LSLE) is persistently hypoxic in contrast to the normoxic bottom waters in the Gulf of St. Lawrence (GSL). We photographed the seabed at 11 stations in the Estuary and Gulf of St.
Archambault, Philippe   +4 more
core   +4 more sources

Gelatinous Zooplankton in the Surface Layers of the Coastal Central Red Sea

open access: yesFrontiers in Marine Science, 2019
Characterizations of gelatinous zooplankton communities are necessary for an improved understanding of the ecological and temporal dynamics of such communities and their composing taxa. Yet, studies on gelatinous zooplankton communities are scarce in the
Jordi Sola   +4 more
doaj   +1 more source

Sea anemone model has a single Toll-like receptor that can function in pathogen detection, NF-κB signal transduction, and development [PDF]

open access: yes, 2017
In organisms from insects to vertebrates, Toll-like receptors (TLRs) are primary pathogen detectors that activate downstream pathways, specifically those that direct expression of innate immune effector genes.
Brennan, Joseph J.   +5 more
core   +1 more source

Differential expression of three galaxin-related genes during settlement and metamorphosis in the scleractinian coral Acropora millepora [PDF]

open access: yes, 2016
BACKGROUND: The coral skeleton consists of CaCO3 deposited upon an organic matrix primarily as aragonite. Currently galaxin, from Galaxea fascicularis, is the only soluble protein component of the organic matrix that has been characterized from a coral.
Ball, Eldon   +4 more
core   +1 more source

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