Results 181 to 190 of about 4,078 (221)
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SIF, A novel morphogenetic inducer in hydrozoa
Developmental Biology, 1991By analogy to processes in angiogenesis (blood vessel formation), the development of the stolonal network in colonial hydrozoa involves stimulation of branching and mutual chemotropic attraction of the growing branches by means of soluble morphogenetic factors.
R G, Lange, W A, Müller
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Biological Reviews, 1963
Summary1. This article reviews the present state of knowledge on regeneration in the Hydrozoa and some of the problems related to it. The available data derived from descriptive and experimental studies are confined to only a few genera (Hydra, Tubularia, Cordylophora, Corymorpha, Campanularia, Pennaria).
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Summary1. This article reviews the present state of knowledge on regeneration in the Hydrozoa and some of the problems related to it. The available data derived from descriptive and experimental studies are confined to only a few genera (Hydra, Tubularia, Cordylophora, Corymorpha, Campanularia, Pennaria).
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Peptides in the Hydrozoa: are they transmitters?
Hydrobiologia, 1991A family of peptides with the carboxy-terminus Arg-Phe-amide has been localized to specific subpopulations of neurons in every cnidarian species examined. These neurons are typically sensory in character or are associated with smooth muscle. Although a transmitter role for these peptides has been suggested for anthozoans at neuromuscular synapses, no ...
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Naturwissenschaften, 1997
is famous for its ability to regenerate missing structures. Even aggregates of single cells transform eventually into normally shaped animals. This indicates a communication within the tissue and within the aggregates which determines the spatial pattern of gene expression. Such pattern-forming systems are thought to play a decisive role in the control
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is famous for its ability to regenerate missing structures. Even aggregates of single cells transform eventually into normally shaped animals. This indicates a communication within the tissue and within the aggregates which determines the spatial pattern of gene expression. Such pattern-forming systems are thought to play a decisive role in the control
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2006
Pubblicato come nr 194 delle Mémoires du Musèum national d'Histoire naturelle * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
BOUILLON J +4 more
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Pubblicato come nr 194 delle Mémoires du Musèum national d'Histoire naturelle * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
BOUILLON J +4 more
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Cnidaria: Colonial Hydrozoa (Siphonophorae)
2017This chapter describes the taxonomy of colonial Hydrozoa. Siphonophores are pelagic organisms that can be found the whole year round, sometimes in a characteristic season, inshore and offshore at all latitudes and depths. As in all hydrozoans, they carry tentacles equipped with stinging cells (nematocysts), which are used by the colony to immobilize ...
Priscilla Licandro +2 more
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2014
The taxonomic composition of the Hydrozoa from the upper coastal zone of the Laspi Bay (south coast of Crimea, Black Sea) is investigated for the first time. Material was collected in the diverse seasons in 2005???2007. 11 species of 6 families are identified. Five species: Pachycordyle aff.
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The taxonomic composition of the Hydrozoa from the upper coastal zone of the Laspi Bay (south coast of Crimea, Black Sea) is investigated for the first time. Material was collected in the diverse seasons in 2005???2007. 11 species of 6 families are identified. Five species: Pachycordyle aff.
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Classification and phylogeny in the Hydroidomedusae (Hydrozoa, Cnidaria)
1996info:eu-repo/semantics ...
BOERO, Ferdinando +2 more
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Hydrozoa of the Eurasian Arctic Seas
1989Hydrozoans comprise one of the four classes in the phylum Cnidaria. Most members of the class have bottom sedentary (seldom pelagic) polypoid and pelagical medusoid stages of the life cycle. The polypoid generation may be an individual organism or a colony with the chitinous (rarely calcareous) skeleton. The polypoid produces the medusoid stage.
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