Results 251 to 260 of about 19,763 (293)

Spermatogenesis in anthozoa: Differentiation of the spermatid

Cell And Tissue Research, 1975
The fine structure of spermatids has been examined in Calliactis, Protanthea, Gonactinia and Parazoanthus (Cnidaria, Anthozoa). The sperm cells are relatively simple and lack distinct acrosomes. Their nuclei, spherical in the zoanthid, in the actinians are slendertipped cones. Condensation of the chromatin is interpreted in terms of progressive coiling
E B Lyke, E B Lyke, E A Robson, E A Robson   +3 more
openaire   +2 more sources

Morphological and molecular description of a new genus and species of black coral (Cnidaria: Anthozoa: Hexacorallia: Antipatharia: Antipathidae: Blastopathes) from Papua New Guinea.

Zootaxa, 2020
Blastopathes medusa gen. nov., sp. nov., is described from Kimbe Bay, Papua New Guinea, based on morphological and molecular data. Blastopathes, assigned to the Antipathidae, is a large, mythology-inspiring black coral characterized by clusters of ...
J. Horowitz, M. Brugler, T. Bridge, P. Cowman   +3 more
semanticscholar   +1 more source

Systematic Relationships within the Anthozoa (Cnidaria: Anthozoa) Using the 5′-end of the 28S rDNA

Molecular Phylogenetics and Evolution, 1995
Systematic relationships among the subclasses of Anthozoa, and especially among the orders Scleractinia, Actiniaria, and Corallimorpharia of subclass Zoantharia, were investigated by applying parsimony and distance methods of analysis to nucleotide sequence data obtained for the 5' end of the 28S rDNA.
C A, Chen, D M, Odorico, M, ten Lohuis, J E, Veron, D J, Miller   +4 more
openaire   +3 more sources

Monophyly of Anthozoa (Cnidaria): why do nuclear and mitochondrial phylogenies disagree?

Zoologica Scripta, 2017
Corinne Rancurel, Didier Aurelle, Pierre Pontarotti   +2 more
exaly   +2 more sources

Sea Anemone (Cnidaria, Anthozoa, Actiniaria) Toxins: An Overview [PDF]

Marine Drugs, 2012
The Cnidaria phylum includes organisms that are among the most venomous animals. The Anthozoa class includes sea anemones, hard corals, soft corals and sea pens. The composition of cnidarian venoms is not known in detail, but they appear to contain a variety of compounds. Currently around 250 of those compounds have been identified (peptides, proteins,
Agostinho Antunes, Vitor Vasconcelos
exaly   +5 more sources

Cophylogenetic analysis of the relationship between anemonefish Amphiprion (Perciformes: Pomacentridae) and their symbiotic host anemones (Anthozoa: Actiniaria)

, 2020
The association between anemonefish and anemone is a classical example of mutualism in coral reefs. Although mutualism is probably the key innovation that triggered the adaptive radiation of anemonefish into a wide range of habitats, the coevolutionary ...
H. Nguyen, B. Dang, H. Glenner, A. Geffen   +3 more
semanticscholar   +1 more source

Catalog to families, genera, and species of orders Actiniaria and Corallimorpharia (Cnidaria: Anthozoa)

Zootaxa, 2016
This book inventories all available (and some unavailable) names in the family, genus, and species groups of extant members of orders Actiniaria and Corallimorpharia [cnidarian subclass Hexacorallia (Zoantharia) of class Anthozoa], providing a benchmark ...
D. Fautin
exaly   +2 more sources

Anthozoa red fluorescent protein in biosensing

Analytical and Bioanalytical Chemistry, 2006
The identification and cloning of a red fluorescent protein (DsRed) obtained from Anthozoa corals has provided an alternative to commonly used green fluorescent proteins (GFPs) in bioanalytical and biomedical research. DsRed in tandem with GFPs has enhanced the feasibility of multicolor labeling studies.
Suresh Shrestha, Sapna K. Deo
openaire   +3 more sources

Generation of bilateral symmetry in Anthozoa: A model

Journal of Theoretical Biology, 2007
Polyps of Anthozoa usually display bilateral symmetry with respect to their mouth opening, to their pharynx, and in particular to the arrangement of their mesenteries. Mesenteries, which are endodermal folds running from the apical to the basal end of the body, subdivide the gastric cavity into pouches. They form in a bilateral symmetric sequence.
openaire   +3 more sources

Reproduction in Zoanthidea (Anthozoa: Hexacorallia)

Invertebrate Reproduction & Development, 1997
Summary The state of knowledge concerning the reproductive biology of zoanthids is reviewed. Colonies in the suborder Macrocnemina, with few exceptions, are gonochoric; those in Brachycnemina are probably basically hermaphroditic but accurate sampling in colonies that fragment is difficult and exceptions by species or populations occur.
openaire   +2 more sources