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Regulation of interstitial cell differentiation in hydra attenuata part 3 effects of interstitial cell and nerve cell densities






Journal of Cell Science 34: 1-26

Regulation of interstitial cell differentiation in hydra attenuata part 3 effects of interstitial cell and nerve cell densities

Using a new assay, interstitial cell (i-cell) commitment to nerve cell or nematocyte differentiation was investigated. Nematocyte commitment was positively correlated with size of i-cell population and independent of the axial position of i-cells along the body column. This indicates that i-cell commitment to nematocyte differentiation may be regulated by feedback from the i-cell population. Nerve cell commitment was correlated with regions of high nerve cell density. Nerve cell commitment is probably regulated by feedback from the nerve cell population or is dependent on axial position.


Accession: 006288820



Related references

Yaross, M.S.; Bode, H.R., 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 and nematocytes, throughout asexual growth. Using a new assay, the regulation of i-cell commitment to either nerve cel...

Yaross, MS.; Bode, HR., 1978: Regulation of interstitial cell differentiation in Hydra attenuata. 3. Effects of I-cell and nerve cell densities. Using a new assay, interstitial cell (i-cell) commitment to nerve cell or nematocyte differentiation was investigated. Nematocyte commitment was positively correlated with size of i-cell population and independent of the axial position of i-cells...

Heimfeld, S.; Bode, H.R., 1986: Growth regulation of the interstitial cell population in hydra hydra attenuata iv. control of nerve cell and nematocyte differentiation by amplification of non stem interstitial cells. The precursors for several differentiated cell types in hydra, such as nerve cells and nematocytes, arise from the interstitial cell population. Previously, it has been suggested that the interstitial cells represent a homogeneous stem cell popula...

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Heimfeld, S.; Bode, H.R., 1981: Regulation of interstitial cell differentiation in Hydra attenuata. VI. Positional pattern of nerve cell commitment is independent of local nerve cell density. The interstitial cell of hydra is a multipotent stem cell, which produces nerve cells as one of its differentiated cell types. The amount of interstitial cell commitment to nerve differentiation varies in an axially dependent pattern along the bod...

Heimfeld, S.; Bode, H.R., 1981: Regulation of interstitial cell differentiation in hydra attenuata 6. positional pattern of nerve cell commitment is independent of local nerve cell density. The interstitial cell of hydra is a multipotent stem cell, which produces nerve cells as one of its differentiated cell types. The amount of interstitial cell commitment to nerve differentiation varies in an axially dependent pattern along the bod...

Bode, HR.; Flick, KM.; Smith, GS., 1976: Regulation of interstitial cell differentiation in Hydra attenuata. l. Homeostatic control of interstitial cell population size. Journal Cell Sci, 201: 29-46

Bode, H.R.; Flick, K.M.; Smith, G.S., 1976: Regulation of interstitial cell differentiation in Hydra attenuata. I. Homeostatic control of interstitial cell population size. Mechanisms regulating the population size of the multipotent interstitial cell (i-cell) in Hydra attenuata were investigated. Treatment of animals with 3 cycles of a regime of 24 h in 10-2 M hydroxyurea (HU) alternated with 12 h in culture medium...