Results 31 to 40 of about 21,944 (215)
A quantitative method for maceration of hydra tissue [PDF]
, 1973 A method is described for the maceration (dissociation) of hydra tissue into single cells. The cells have characteristic morphology such that all basic types — epithelial, gland, mucous, interstitial, nematoblast, and nerve — can be distinguished ...
David, Charles N.
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Groups, Geometry, and Dynamics, 2013 We give examples of hyperbolic groups with finite rank free subgroups of huge (Ackermannian) distortion.
Brady, Noel +2 more
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Nerve cell differentiation in hydra requires two signals [PDF]
, 1986 Endogenous signals controlling nerve cell commitment in hydra were investigated using an assay for committed nerve precursors. Extracts of hydra tissue were prepared and tested for their ability to induce nerve cell commitment.
Schaller, Chica H. +2 more
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Biomimetics, 2022 Hydra is a freshwater solitary polyp, capable of temporary adhesion to underwater surfaces. The reversible attachment is based on an adhesive material that is secreted from its basal disc cells and left behind on the substrate as a footprint.
Sofia Seabra +4 more
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The Biological Bulletin, 1997 Embryogenesis in hydra includes a variable period of dormancy; and this period, as well as subsequent stages through hatching, takes place within a thick cuticle that hinders observation. Thus, although the early stages of development have been well-characterized qualitatively, the middle and later stages are only poorly understood.
Martin, V J +3 more
openaire +4 more sources
Incorporation of a horizontally transferred gene into an operon during cnidarian evolution. [PDF]
PLoS ONE, 2012 Genome sequencing has revealed examples of horizontally transferred genes, but we still know little about how such genes are incorporated into their host genomes. We have previously reported the identification of a gene (flp) that appears to have entered
Catherine E Dana +4 more
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Characterization of interstitial stem cells in hydra by cloning [PDF]
, 1977 A procedure has been developed for cloning interstitial stem cells from hydra. Clones are prepared by introducing small numbers of viable cells into aggregates of nitrogen mustard-inactivated host tissue.
Murphy, Susan +3 more
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Immunocompetence in Hydra. Epithelial cells recognize self-nonself and react against it [PDF]
, 1986 The evolution of effective immunologic defense mechanisms in multicellular organisms involves the ability of host cells to distinguish betweeen self and nonself and to react appropriately to eliminate foreign tissue.
Bosch, Thomas C. G. +3 more
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Angewandte Chemie, EarlyView.Pt1, an organometallic platinum‐based complex, act as a modulator of redox homeostasis in cnidarians, regulating cellular functions and life‐cycle dynamics. In Nematostella vectensis, it mitigates oxidative stress, strengthens detox systems and accelerates development.
Giuseppina Tommasini +13 more
wiley +2 more sources
CELL CYCLE KINETICS AND DEVELOPMENT OF HYDRA ATTENUATA [PDF]
, 1974 The differentiation of nerve cells and nematocytes in Hydra attenuata has been investigated by labelling interstitial cell precursors with PHJthymidine and following by autoradiography the appearance of labelled, newly differentiated cells.
Gierer, A., David, Charles N.
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