Triturus cristatus

Newt, Triturus cristatus, adults, held in tank with a zinc-plated base South African clawed frog, Xenopus laevis 200 to 3000 overa 7-day period Zinc-poisoned newts were lethargic, ate poorly, and had skin darkening prior to death. Zinc residues were elevated in kidney, brain, liver, and intestine, when compared to controls. The hippocampus region of the brain of poisoned newts contained zinc-rich cells 82... 

Pacces Zaffaroni et al. (1978) investigated the percutaneous toxicity of maneb in solution to the adult newt, Triturus cristatus. When incubated in water containing 20, 40, 60, 80, or 100 ppm maneb, the newts suffered deaths in a dose-dependent fashion, with 50% of the male newts dead in 8.4—8.8 hours at 100 ppm and in 255 hours at 20 ppm. The females were not as susceptible to the lethal action of the fungicide, with 50% dying in 28.5 hours at 100 ppm, and some newts still alive after 5 months at 20 ppm. No studies were located concerning death following dermal exposure of animals to mancozeb. 

Arias E and Zavanella T. 1979. Teratogenic effects of manganese ethylenebisdithiocarbamate (maneb) on forelimb regeneration in the adult newt, Triturus cristatus carnifex. Bull Environ Contam Toxicol... 

The European newts Triturus cristatus, Triturus alpestris and Triturus vulgaris have been studied. Most striking is the strong hemolytic activity of the secretion of up to a concentration of 1 1.000.000.000. In addition... 

Malacame, G., Giacoma, C., Velllano, C. and Mazzi, V. 1982. Prolactin and sexual behavior in the male crested newt Triturus cristatus carnifex Laur). Gen. Comp. Endocrinol. 47, 139—147. 

Malacame, G. Vellano, C. 1987. Behavioral evidence of a courtship pheromone in the crested newt, Triturus cristatus carnifex Laurenti. Copeia, 245-247. 

Similar evidence is available for the crested newt, Triturus cristatus. By occluding the female s nares with petroleum jelly, Malacarne et al. 

Belvedere, P. C., Colombo, L., Mezzalira, F., and Malacarne, G., 1984, Steroid biosynthesis by the abdominal gland and the testis of the crested newt, Triturus cristatus carnifex Laur., Boll. Zool., 51,... 

Triturus alpestris, 264, 279 Triturus cristatus, 107 Triturus pyrrhogaster, 107, 270, 276, 279, 346... 

A host of different species have been used over the past century for limb regeneration studies, including the European crested newt, Triturus cristatus, which is now a protected species. Today, however, four species predominate. One is the eastern spotted newt of North America, Notophthalmus viridescens, which is used as an adult. The adults of this species are common, adaptable to... 

Fig. 65. Diagram showing progressive incorporation of -uridine into RNA on the giant loop of chromosome No. 32 of Triturus cristatus. -labeled granules are stained black, a) Before injection of triton with -uridine b) 1 day after injection c) 2 days d) 4 days e) 7 days f) 14 days after injection (Callan, 1963).

Davies, H. G., and Tooze, J. (1966). Electron- and bght-microscope observations on the spleen of the newt Triturus cristatus the surface topography of the mitotic chromosomes. /. CeU. Sci. 1, 331-350. 

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