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Description: | T. palmatus gastrula [4] days at 3 at [degrees] C [1hr] at 8 [degrees] C (written on a label stuck to the glass slide). Blastula non treated (writen on another label stuck to the glass slide) MANU PONTERCORVO,Guido. 1942 Glasgow University, Glasgow, Scotland. These are two specimens of the ova (egg) of *Triturus helvetica* Razoumovsky, 1789, the palmate newt. Invalid synonyms are *Triton (Triton) palmatus* Wolterstorff, 1901 and *Triton palmatus forma sequeirai* Wolterstorff, 1905 . The tissue was prepared from the blastula and gastrula stage of an embryo. In the gastrula the cells are rearranged to form a hollow sphere. The gastrula has three germ layers creating a stomach or cup shaped depression and forms after the blastula (a structure consisting of roughly 100-200 cells).
The tissue from the gastrula was stored at 3 degrees Celsius for 4 days then [1 hour] at 8 degrees during which time mitosis occured i.e. the replication of a cell to form two daughter cells with identical sets of chromosomes. The blastula remained untreated presumably as a standard. The tissues were then possibly fixed with a mixture of acetic acid and alcohol. Once fixed it was then probably stained with orcein (natural red 28), a dye obtained from lichen | License: | http://www.hmag.gla.ac.uk/spirit/rights/ | Publisher: | Hunterian Museum and Art Gallery, University of Glasgow | Rights holder: | Hunterian Museum and Art Gallery, University of Glasgow | Subjects: | SCIENTIFIC COLLECTION : | Source: | Hunterian Museum | Creator: | Hunterian Museum and Art Gallery, University of Glasgow | Identifier: | http://www.huntsearch.gla.ac.uk/cgi-bin/... | Language: | en-GB | Go to resource |
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