Mucopolysaccharide histochemistry of the oviduct of the toad, Bufo melanostictus, before and during ovulation.

Activation of adrenergic receptors by resveratrol elicits pigment aggregation in isolated melanophores of adult toad, Bufo melanostictus leading to skin lightening

The present study was carried out to determine the effects of the seed skin extract of A. hypogaea along with active ingredient pure Resveratrol on the isolated dorsal skin melanophores of the toad Bufo melanostictus.The skin melanophores of the B. melanostictus, were assayed using the mean melanophore size index and their responses were recorded in the presence of various concentrations of the...

Studies on Sex Hormones. Part I. Sperm Test of pregnancy Utilizing Male Toad, Bufo melanostictus Schneid., as Test Animal

Deep genetic structure and ecological divergence in a widespread human commensal toad.

The Asian common toad (Duttaphrynus melanostictus) is a human commensal species that occupies a wide variety of habitats across tropical Southeast Asia. We test the hypothesis that genetic variation in D. melanostictus is weakly associated with geography owing to natural and human-mediated dispersal facilitated by its commensal nature. Phylogenetic and population genetic analyses of mitochondri...

Putative L-triiodothyronine receptors in the liver nuclei of mature tropical toad, Bufo melanostictus.

Thyroid hormones exert a major role in growth and differentiation of almost all types of tissues in animals, particularly in amphibian metamorphosis, through its specific nuclear receptor activation followed by gene expression. However, its function in mature tropical amphibians is less studied. The present study revealed the existence of a single class of specific nuclear receptor(s) in the li...

Evaluation of sexual dimorphism on the basis of morphometric traits in Talysh toad, Bufo eichwaldi (Litvinchuk, Borkin, Skorinov & Rosanov, 2008), along with the evaluation of the conservation status of the species

The status of sexual dimorphism patterns in human and various animal groups including some mammals, birds, reptiles and amphibians have been studied, however, despite the fact that a growing number of studies were aimed to describe sexual dimorphism patterns in external morphological features such as the proportion of toes in animals, our knowledge of some basic issues, specially in some animal...