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Hydra Polyps

Known as: Pelmatohydra, Chlorohydra, Hydra 
A genus of freshwater polyps in the family Hydridae, order Hydroida, class HYDROZOA. They are of special interest because of their complex… 
National Institutes of Health

Related topics

Related topics

3 relations
Microbiologicalaspects of radiation effectsphysiological aspects

Papers overview

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Review
2013
Review
2013
METALLICITY DISTRIBUTION FUNCTIONS, RADIAL VELOCITIES, AND ALPHA ELEMENT ABUNDANCES IN THREE OFF-AXIS BULGE FIELDS
We present radial velocities and chemical abundance ratios of [Fe/H], [O/Fe], [Si/Fe], and [Ca/Fe] for 264 red giant branch stars… 
2012
2012
A tale of two tails and an off-centered envelope: diffuse light around the cD galaxy NGC 3311 in the Hydra I cluster
Context. The formation of intracluster light and extended halos around brightest cluster galaxies is closely related to… 
Highly Cited
1986
Highly Cited
1986
Gland cells in Hydra: cell cycle kinetics and development.
The proliferative capacity of gland cells in Hydra attenuata was investigated. The results indicate that both gland cell… 
1981
1981
Control of cell division of the intracellular Chlorella symbionts in green Hydra.
Green hydra maintains within its digestive cells a population of symbiotic algae which remains constant in normal culture… 
Highly Cited
1979
Highly Cited
1979
The role of algal antigenic determinants in the recognition of potential algal symbionts by cells of Chlorohydra.
Algal cells grown in the green hydra Chlorohydra viridissima were shown to possess characteristic antigenic determinants not… 
Highly Cited
1978
Highly Cited
1978
Regulation of interstitial cell differentiation in Hydra attenuata. III. Effects of I-cell and nerve cell densities.
The interstitial cell (i-cell) of hydra, a multipotent stem cell, produces two classes of differentiated cell types, nerve cells… 
Highly Cited
1976
Highly Cited
1976
Distribution and dynamics of nematocyte populations in Hydra attenuata.
The distribution and dynamics of the 4 nematocyte populations of Hydra attenuata were investigated. Ninety-seven per cent of all… 
Highly Cited
1974
Highly Cited
1974
Distribution of Interstitial Cells and Differentiating Nematocytes in Nests in Hydra attenuata
We have used tissue maceration to quantitate interstitial cell nests in Hydra attenuata and thiolacetic acid-lead nitrate… 
1967
1967
STRUCTURE AND REPRODUCTION OF THE ALGAL SYMBIONTS OF HYDRA VIRIDIS 1
The algal symbionts of Hydra viridis are found within vacuoles of the gastrodermal digestive cells of the host. Electron… 
Highly Cited
1965
Highly Cited
1965
Hydra: Induction of Supernumerary Heads by Isolated Neurosecretory Granules
Neurosecretory granules of Hydra littoralis were isolated by differential centrifugation. Excised midsegments of hydra that were… 
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