Looking for genetic effects of polluted anthropized environments on Caiman crocodilus crocodilus (Reptilia, Crocodylia): A comparative genotoxic and chromosomal analysis
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چکیده
منابع مشابه
Gastric function in Caiman crocodilus (Crocodylia: Reptilia). II. Effects of temperature on pH and proteolysis.
-1. In Caiman crocodilus, the pH of the gastric secretions during digestion may reach 1.2 in specimens kept between 20 and 30°C. C. crocodilus feeds and digests at 15°C, but the pH of gastric secretions did not drop below 1-8. 2. The gastric secretion increased in rate and hydrochloric acid concentration after injections of histamine (400 t~g/kg body weight, given in four hourly doses). The rat...
متن کاملMisconceptions about the taxonomy and distribution of Caiman crocodilus chiapasius and C. crocodilus fuscus (Reptilia: Crocodylia: Alligatoridae)
ARMANDO H. ESCOBEDO-GALVÁN, FABIO G. CUPUL-MAGAÑA & JULIÁN A. VELASCO Laboratorio de Análisis Espaciales, Instituto de Biología, Universidad Nacional Autónoma de México, 04510 México D.F., México Centro Universitario de la Costa, Universidad de Guadalajara, Av. Universidad de Guadalajara No. 203, Delegación Ixtapa, C.P. 48280, Puerto Vallarta, Jalisco, México Corresponding author. E-mail: elcho...
متن کاملGastric function in Caiman crocodilus (Crocodylia: Reptilia). I. Rate of gastric digestion and gastric motility as a function of temperature.
-1. A cannulation method was devised that allows continuous safe gastric sampling and recording of intragastric pressure in Caiman crocodilus. 2. In C. crocodilus, fed 5 per cent of the body weight, complete gastric emptying takes an average of 99 (+_ 10) hr at 30°C, to an average of 315 (4-16) hr at 15°C. 3. Two types of gastric contractions were recorded in C. crocodilus, by means of intragas...
متن کاملThe dorsal column nucleus in a reptile, Caiman crocodilus.
The dorsal column nucleus of Caiman crocodilus was identified by using standard orthograde techniques to trace the degeneration that resulted from dorsal rhizotomies in brachial and lumbar regions. Although the dorsal column nucleus was difficult to locate in Nissl and fiber preparations, it was easily identified in histochemical material because it stained intensely with succinate dehydrogenas...
متن کاملMorphometric analysis of the Rio Apaporis Caiman (Reptilia, Crocodylia, Alligatoridae).
Caiman crocodilus apaporiensis has been considered by several authors as an extreme of morphological variation within the Caiman crocodilus complex. Here, we evaluate its position in the Caiman crocodilus complex morphospace using morphological traits from head shape. We examined the holotype and seventeen paratypes of Caiman crocodilus apaporiensis Medem 1955 deposited at the Field Museum of N...
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ژورنال
عنوان ژورنال: Ecotoxicology and Environmental Safety
سال: 2021
ISSN: 0147-6513
DOI: 10.1016/j.ecoenv.2020.111835