Bartlett, Heather L., Thomas D. Scholz, Fred S. Lamb, and Daniel L. Weeks.Characterization of embryonic cardiac pacemaker and atrioventricular conduction physiology in Xenopus laevis using noninvasive imaging. Am J Physiol Heart Circ Physiol 286: H2035– H2041, 2004; 10.1152/ajpheart.00807.2003.—Congenital heart defects often include altered conduction as well as morphological changes. Model org...

We investigated the effects on various crops of inoculation with species of arbuscular mycorrhizal fungi (AMF) in soils from different sources and selected AMF species suitable for domestic environment-friendly farming. Effects on plants varied with the AMF species used. In carrot, Scutellospora heterogama, Acaulospora longula, and Funneliformis mosseae had a positive effect on growth of the ho...

UNLABELLED Ranaviruses (Iridoviridae) are posing an increasing threat to amphibian populations, with anuran tadpoles being particularly susceptible to these viral infections. Moreover, amphibians are the most basal phylogenetic class of vertebrates known to possess both type I and type III interferon (IFN)-mediated immunity. Moreover, little is known regarding the respective roles of the IFN me...

In eggs of Xenopus laevis, dorsal development is activated on the future dorsal side by cortical rotation, after fertilization. The immediate effect of cortical rotation is probably the transport of a dorsal determinant from the vegetal pole to the equatorial region on the future dorsal side. However, the identity and action of the dorsal determinant remain problematic. In the present experimen...

International trade of the invasive South African clawed frog (Xenopus laevis), a subclinical carrier of the fungal pathogen Batrachochytrium dendrobatis (Bd) has been proposed as a major means of introduction of Bd into naïve, susceptible amphibian populations. The historical presence of Bd in the indigenous African population of Xenopus is well documented. However, there are no reports docume...

A current trend in drug research is the desire to obtain novel antimicrobials with plant origins as an alternative therapy and a means curb antimicrobial resistance. This study evaluated phytochemistry antibacterial activity of ethyl acetate leaf extract Newbouldia laevis. The laevis was cold extracted Ethyl acetate. for it phytochemical constituents using standard methods effect against some c...