Results 21 to 30 of about 20,811 (219)

Chilling Injury to Algal Symbionts Induces Host Starvation and Metabolic Reorganization in a Temperate Cnidarian [PDF]

open access: yesMol Ecol
ABSTRACT Global temperature anomalies increasingly disrupt the cnidarian‐algal symbiosis resulting in a phenomenon termed bleaching. In contrast to heat stress, the mechanisms underlying symbiotic breakdown under cold stress remain largely unknown. Combining physiological and metabolomic measurements, we investigated the response of the photosymbiotic ...
Legain M   +11 more
europepmc   +2 more sources

Apoptotic gene loss in Cnidaria is associated with transition to parasitism

open access: yes, 2022
File contains predicted sequences of key apoptotic proteins of parasitic Cnidaria (Myxosporea, Malacosporea, Polypodium).
Marina Batueva (14253741)   +5 more
core   +1 more source

First In Situ Observation of Sperm Release in Corynactis carnea (Anthozoa: Corallimorpharia) from Patagonia, Argentina

open access: yesDiversity, 2023
Jewel sea anemones constitute a relatively small group of solitary cnidarians, a sister group of scleractinian corals. In the southwest Atlantic Ocean off Argentina, two species of jewel sea anemones have been found: Corynactis carnea and Corallimorphus ...
Gonzalo Bravo   +3 more
doaj   +1 more source

Evolution of Cnidaria in time and space [PDF]

open access: yes, 2022
O estabelecimento de uma escala de tempo evolutiva precisa para o filo Cnidaria é essencial para colocar diversas adaptações, como a origem da biomineralização ou a evolução do ciclo de vida em um cronograma geológico correto.
Guerrero, Adriana Marcela Morales   +1 more
core   +1 more source

Evidence for a genetic sex determination in Cnidaria, the Mediterranean red coral (Corallium rubrum) [PDF]

open access: yesRoyal Society Open Science, 2017
Sexual reproduction is widespread among eukaryotes, and the sex-determining processes vary greatly among species. While genetic sex determination (GSD) has been intensively described in bilaterian species, no example has yet been recorded among non ...
M. Pratlong   +9 more
doaj   +1 more source

Expression of Opsins of the Box Jellyfish Tripedalia cystophora Reveals the First Photopigment in Cnidarian Ocelli and Supports the Presence of Photoisomerases

open access: yesFrontiers in Neuroanatomy, 2022
Cubomedusae, or box jellyfish, have a complex visual system comprising 24 eyes of four types. Like other cnidarians, their photoreceptor cells are ciliary in morphology, and a range of different techniques together show that at least two of the eye types—
Anders Garm   +3 more
doaj   +1 more source

A Novel Phospholipase A2 Isolated from Palythoa caribaeorum Possesses Neurotoxic Activity

open access: yesToxins, 2019
Zoanthids of the genus Palythoa are distributed worldwide in shallow waters around coral reefs. Like all cnidarians, they possess nematocysts that contain a large diversity of toxins that paralyze their prey.
Miguel Cuevas-Cruz   +11 more
doaj   +1 more source

Reflectance Confocal Microscopy of Skin after the Sting of the Jellyfish Pelagia noctiluca

open access: yesCase Reports in Dermatology, 2023
Jellyfish are aquatic animals of the phylum Cnidaria found in seas all over the world. They are characterized by the presence of cnidocytes, cells that contain a secretory organelle, the cnidocyst, mainly used for predation and defense purposes. An adult
Giovanni Paolino   +4 more
doaj   +1 more source

Three new species of Spongiopsyllus Johnsson, 2000 (Copepoda: Siphonostomatoida: Entomolepididae) associated with Aplysina cauliformis (Carter, 1882) (Porifera: Demospongiae) from Todos-os-Santos Bay, Northeastern Brazil

open access: yesEuropean Journal of Taxonomy
Entomolepididae is a small siphonostomatoid family with a distinct shield-like body morphology, comprising 9 genera and 20 species. These genera are divided into two subfamilies, mostly based on their body segmentation, the genera with fused pedigerous ...
Amilcar Farias   +3 more
doaj   +1 more source

Description of a new genus of Cryptochiridae (Decapoda: Brachyura) associated with Siderastrea (Anthozoa: Scleractinia), with notes on feeding habits

open access: yesScientia Marina, 2012
Members of the Cryptochiridae are small gall-crabs that live as obligate symbionts of scleractinian corals. Only two species have so far been recorded in the western Atlantic Ocean.
Marcelle F.S. Badaro   +3 more
doaj   +1 more source

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