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Literature DB >> 28305184

Separation and specificity of action of four morphogens from hydra.

H Chica Schaller¹, Tobias Schmidt¹, Cok J P Grimmelikhuijzen¹.

Abstract

A procedure is presented by which four previously described morphogenetic substances can be purified from hydra: an activator and an inhibitor of head formation and an activator and an inhibitor of foot formation. We show that all four substances act specifically. At low concentrations, the head factors only influence head and not foot formation, and the foot factors only influence foot and not head formation.

Keywords: Budding; Hydra; Morphogenetic substances; Regeneration

Year: 1979 PMID： 28305184 DOI： 10.1007/BF00848175

Source DB: PubMed Journal: Wilehm Roux Arch Dev Biol ISSN： 0340-0794

11 in total

1. Action of the head activator on the determination of interstitial cells in hydra.

Authors: H C Schaller
Journal: Cell Differ Date: 1976-04

2. Evidence for a foot-inhibiting substance in hydra.

Authors: T Schmidt; H C Schaller
Journal: Cell Differ Date: 1976-10

3. Bud formation inHydra: Inhibition by an endogenous morphogen.

Authors: Stefan Berking
Journal: Wilehm Roux Arch Dev Biol Date: 1977-09

4. Analysis of early stages of budding inHydra by means of an endogenous inhibitor.

Authors: Stefan Berking; Alfred Gierer
Journal: Wilehm Roux Arch Dev Biol Date: 1977-06

5. Analysis of morphogenetic mutants of hydra : I. TheAberrant.

Authors: H C Schaller; T Schmidt; K Flick; C J P Grimmelikhuijzen
Journal: Wilehm Roux Arch Dev Biol Date: 1977-09

6. Quantitative analysis of cell types during growth and morphogenesis in Hydra.

Authors: H Bode; S Berking; C N David; A Gierer; H Schaller; E Trenkner
Journal: Wilhelm Roux Arch Entwickl Mech Org Date: 1973-12

7. The feedback inhibition of basal disk regeneration in Hydra has a continuously variable intensity.

Authors: H K MacWilliams; F C Kafatos; W H Bossert
Journal: Dev Biol Date: 1970-11 Impact factor: 3.582

8. Isolation and characterization of a low-molecular-weight substance activating head and bud formation in hydra.

Authors: H C Schaller
Journal: J Embryol Exp Morphol Date: 1973-02

9. Mass culture of hydra: an improved method and its application to other aquatic invertebrates.

Authors: H M Lenhoff; R D Brown
Journal: Lab Anim Date: 1970-04 Impact factor: 2.471

10. Isolation of a substance activating foot formation in hydra.

Authors: C J Grimmelikhuijzen; H C Schaller
Journal: Cell Differ Date: 1977-12

15 in total

1. Metamorphosis ofHydractinia echinata Insights into pattern formation in Hydroids.

Authors: Stefan Berking
Journal: Wilehm Roux Arch Dev Biol Date: 1984-11

2. Properties of the foot inhibitor from hydra.

Authors: Tobias Schmidt; H Chica Schaller
Journal: Wilehm Roux Arch Dev Biol Date: 1980-06

3. Analysis of morphogenetic mutants of hydra : IV.Reg-16, a mutant deficient in head regeneration.

Authors: Wolfgang Kemmner; H Chica Schaller
Journal: Wilehm Roux Arch Dev Biol Date: 1981-07

4. The fractionation of aHydra-derived inhibitor into head and foot inhibitors may be an artefact.

Authors: Stefan Berking
Journal: Wilehm Roux Arch Dev Biol Date: 1983-11

5. Evaluation of tentacle regeneration as a biological assay inHydra.

Authors: Valerie Raabe Flechtner; Georgia Elizabeth Lesh-Laurie; Michael Kenneth Abbott
Journal: Wilehm Roux Arch Dev Biol Date: 1981-03

6. The role of parental positional information in the determination of antero-posterior polarity during palleal budding in ascidians.

Authors: Kazuo Kawamura; Hiroshi Watanabe
Journal: Wilehm Roux Arch Dev Biol Date: 1983-01