Results 51 to 60 of about 38,706 (301)

A fragmented metazoan organellar genome [PDF]

, 2008
Background: Animal mitochondrial (mt) genomes are characteristically circular molecules of ~16–20 kb. Medusozoa (Cnidaria excluding Anthozoa) are exceptional in that their mt genomes are linear and sometimes subdivided into two to presumably four ...
Erpenbeck, Dirk, Voigt, Oliver, Wörheide, Gert   +2 more
core   +1 more source

A Novel Phospholipase A2 Isolated from Palythoa caribaeorum Possesses Neurotoxic Activity

Toxins, 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, Fernando Lazcano-Pérez, Ulises Hernández-Guzmán, Karen Helena Díaz de la Vega-Castañeda, Sergio A. Román-González, Norma A. Valdez-Cruz, Benjamín Velasco-Bejarano, Ana Laura Colín-González, Abel Santamaría, Saúl Gómez-Manzo, Jaime Marcial-Quino, Roberto Arreguín-Espinosa   +11 more
doaj   +1 more source

New record for the distribution of the colonial hydroid Cordylophora caspia (Pallas, 1771) (Cnidaria: Hydrozoa) in Argentina [PDF]

, 2015
Cordylophora caspia is a colonial, athecate hydroid inhabiting both in freshwater and brackish habitats. Its global distribution is in part due to its ability to tolerate a wide range of salinity.
Acuña, Fabian Horacio, Deserti, Maria Irene, Escalante, Alicia Haydee   +2 more
core   +3 more sources

Ordovician conulariid monospecific assemblages (Czech Republic, Morocco) [PDF]

Estonian Journal of Earth Sciences, 2023
A recently discovered locality of the Katian age near Erfoud (Morocco) supports an assumption that at least some conulariids lived preferably in monospecific associations.
Jana Bruthansová, Petr Kraft
doaj   +1 more source

Phylum Cnidaria

, 2020
This chapter offers a summary of freshwater cnidarians from the Neotropical region. A short review on methods of identification with the most relevant aspects of morphology and biology can be found, as well as a key identification based on the most recent studies of the group.
Deserti, María Irene, Grohmann, Priscila A., Stampar, Sérgio N.   +2 more
openaire   +2 more sources

Expression Analysis of Cnidarian-Specific Neuropeptides in a Sea Anemone Unveils an Apical-Organ-Associated Nerve Net That Disintegrates at Metamorphosis

Frontiers in Endocrinology, 2020
Neuropeptides are ancient neuronal signaling molecules that have diversified across Cnidaria (e.g., jellyfish, corals, and sea anemones) and its sister group Bilateria (e.g., vertebrates, insects, and worms).
Hannah Zang, Hannah Zang, Nagayasu Nakanishi   +2 more
doaj   +1 more source

Support for a clade of Placozoa and Cnidaria in genes with minimal compositional bias

eLife, 2018
The phylogenetic placement of the morphologically simple placozoans is crucial to understanding the evolution of complex animal traits. Here, we examine the influence of adding new genomes from placozoans to a large dataset designed to study the deepest ...
C. Laumer, Harald R. Gruber-Vodicka, M. Hadfield, Vicki B. Pearse, A. Riesgo, J. Marioni, Gonzalo Giribet   +6 more
semanticscholar   +1 more source

Transcriptomic Insights into the Diversity and Evolution of Myxozoa (Cnidaria, Endocnidozoa) Toxin-like Proteins

Marine Drugs, 2022
Myxozoa is a speciose group of endoparasitic cnidarians that can cause severe ecological and economic effects. Their cnidarian affinity is affirmed by genetic relatedness and the presence of nematocysts, historically called “polar capsules”.
Bin Xiao, Qingxiang Guo, Yanhua Zhai, Zemao Gu   +3 more
doaj   +1 more source

Box, stalked, and upside-down? Draft genomes from diverse jellyfish (Cnidaria, Acraspeda) lineages: Alatina alata (Cubozoa), Calvadosia cruxmelitensis (Staurozoa), and Cassiopea xamachana (Scyphozoa)

GigaScience, 2019
Background Anthozoa, Endocnidozoa, and Medusozoa are the 3 major clades of Cnidaria. Medusozoa is further divided into 4 clades, Hydrozoa, Staurozoa, Cubozoa, and Scyphozoa—the latter 3 lineages make up the clade Acraspeda.
A. Ohdera, C. L. Ames, Rebecca B. Dikow, Ehsan Kayal, Marta Chiodin, Ben Busby, Sean La, S. Pirro, A. Collins, M. Medina, J. Ryan   +10 more
semanticscholar   +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

European 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, Alisson Santana, Elizabeth G. Neves, Rodrigo Jonsson   +3 more
doaj   +1 more source