Talk:Morphallaxis

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Above undated message substituted from Template:Dashboard.wikiedu.org assignment by PrimeBOT (talk) 11:26, 18 January 2022 (UTC)

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Wiki Education assignment: Developmental and Molecular Biology Spring 2024

This article was the subject of a Wiki Education Foundation-supported course assignment, between 8 January 2024 and 24 April 2024. Further details are available on the course page. Student editor(s): Agentmichas116 (article contribs).

— Assignment last updated by Agentmichas116 (talk) 17:39, 4 March 2024 (UTC)

Reaggregation of pulped Hydra Cells - Inaccurate?

What I can verify from primary literature:

• H.V. Wilson’s classic “dissociated cells re-form the organism” experiments are on sponges (not Hydra), starting in 1907. See Wilson (1907) J. Exp. Zool. and related short report in Science (1907).
• There is also a later sponge regeneration-from-dissociated-cells paper in 1930 (Wilson & Penney, J. Exp. Zool.).
• C.M. Child has dissociation/aggregation morphogenesis work on a hydroid (e.g., Corymorpha palma, 1928, Physiological Zoology), not a clear “Hydra single cells through a sieve re-form a complete animal shortly thereafter” result.
• Strong “Hydra regenerates from reaggregated single cells” primary literature is later (e.g., Gierer et al., 1972, Nature New Biology).

So the current sentence seems to mix organisms (sponge vs Hydra), authors (Wilson vs Child), and dates (1907/1930 vs much later Hydra cell reaggregation work), and it also overstates what was demonstrated.

Proposed fix: Either remove the sentence from the Hydra article, or rewrite it to distinguish sponge reaggregation (Wilson 1907; Wilson & Penney 1930) from Hydra cell reaggregation (Gierer et al. 1972), and cite accordingly. Ideally, use a reliable secondary review for context and then cite the primary papers for details.

Primary refs (examples):

• Wilson, H.V. 1907. “On some phenomena of coalescence and regeneration in sponges.” Journal of Experimental Zoology.
• Wilson, H.V. & Penney, J.T. 1930. Journal of Experimental Zoology (sponge regeneration from dissociated cells).
• Child, C.M. 1928. “Axial development in aggregates of dissociated cells from Corymorpha palma.” Physiological Zoology.

Dbgoodman (talk) 04:19, 19 January 2026 (UTC)