The blood meals of field-collected female Culex territans (Diptera: Culicidae) were concurrently assayed for the presence of trypanosomes and for vertebrate host identification. We amplified vertebrate DNA in 42 of 119 females and made positive identification to the host species level in 29 of those samples. Of the 119 field-collected Cx. territans females, 24 were infected with trypanosomes. P...

INTRODUCTION A METHOD by which nuclei can be successfully transplanted into Amphibian eggs was first worked out by Briggs & King (1952) for the eggs of Ranapipiens. Xenopus laevis is an atypical Anuran since its eggs can be obtained throughout the year, and the resulting embryos can be reared to maturity within 12 months under laboratory conditions. Because of these advantages we have used Xeno...

The paper “Nonsyndromic Mandibular Symphysis Cleft” by Leela Krishna Guttikonda et al. was interesting. However, we would like to point out a factual error in the discussion in this paper. In the seventh paragraph of discussion the authors have attributed one theory for the formation of this cleft to Rana et al. for an article published in Indian Journal of Plastic Surgery in 2004. This is fact...

On the basis of qualitative osteological characters, six anuran taxa are present in the late Pliocene Inglis 1A Local Fauna, an apparent natural trap in karst Eocene limestone. They are Scaphiopus holbrookii, Gastrophryne carolinensis, Hyla cinerea, Rana catesbeiana, Rana capito, and Bufo defensor n. sp. (that appears to be related to Bufo terrestris). The predominance of adults in the size cla...

The characteristics of 3-O-methyl-D-glucose (3-OMG) uptake by frog erythrocytes were studied. 3-OMG transport was increased by adrenaline. Although the transport is inhibited by phloretin, the lack of saturation kinetics suggests that a glucose transporter doesn't exist or that its affinity for glucose is extremely low. Frog Rana balcanica red cells suspended in an isotonic medium containing ad...

The yolk platelets of mature eggs and young embryonic cells of all amphibian species studied (Rana pipiens, Triturus pyrrhogaster, Diemictylus viridescens, Rana nigromaculata, and Bufo vulgaris) have a superficial layer of fine particles or fibrils (ca. 50 A in diameter), a central main body with a crystalline lattice structure, and an enclosing membrane approximately 70 A in thickness. Electro...

N-Ethylmaleimide-modified heavy meromyosin (NEM-HMM) microinjected into amphibian eggs inhibits cytokinesis and the cortical contractions associated with wound closure. Injection of NEM-HMM into two-cell Rana pipiens embryos produces a zone of cleavage inhibition around the point of injection. Early furrows followed by time-lapse microcinematography are seen to slow and stop as they enter the N...