Hypersensitivity to light of the iris (Sphincter pupillae) of the albino axolotl (Ambystoma mexicanum).

Plasticity for axolotl lens regeneration is associated with age‐related changes in gene expression

Mexican axolotls lose potential for lens regeneration 2 weeks after hatching. We used microarrays to identify differently expressed genes before and after this critical time, using RNA isolated from iris. Over 3700 genes were identified as differentially expressed in response to lentectomy between young (7 days post-hatching) and old (3 months post-hatching) axolotl larvae. Strikingly, many of ...

Development of Transgenic Ambystoma mexicanum (axolotl) to Study Cell Fate during Development and Regeneration

Axolotl Paedomorphosis: a Comparison of Juvenile, Metamorphic, and Paedomorphic Ambystoma Mexicanum Brain Gene Transcription

OF THESIS AXOLOTL PAEDOMORPHOSIS: A COMPARISON OF JUVENILE, METAMORPHIC, AND PAEDOMORPHIC AMBYSTOMA MEXICANUM BRAIN GENE TRANSCRIPTION Unlike many amphibians, the paedomorphic axolotl (Ambystoma mexicanum) rarely undergoes external morphological changes indicative of metamorphosis. However, internally, some axolotl tissues undergo cryptic metamorphic changes. A previous study examined interspec...

The pigmentary system of developing axolotls I . A biochemical

A biochemical and transmission electron microscopic description of the wild-type pigment phenotype in developing Mexican axolotls (Ambystoma mexicanum) is presented. There are three pigment cell types found in adult axolotl skin melanophores, xanthophores and iridophores. Both pigments and pigment cells undergo specific developmental changes in axolotls. Melanophores are the predominant pigment...

Control of DNA ligase molecular forms in nucleocytoplasmic combinations of axolotl and Pleurodeles.

A light form of DNA ligase (EC 6.5.1.2), the only form present in oocytes of the axolotl (Ambystoma mexicanum), has been shown to be replaced by a heavy form of the enzyme when the egg enters cleavage. This early biochemical event has been assumed to rely on direct nuclear input. Sucrose gradient analysis permits discrimination between enzymes from axolotl and the sharp-ribbed salamander (Pleur...