A 48-year-old man presented with a 3-day history of a gray spot within the central vision of his right eye and of retinal hemorrhages. Mitral valve prolapse was reported, and review of systems revealed a 35-pound weight loss, nonproductive cough, and recurrent fevers during the 3 months prior to evaluation. Physical examination revealed corrected visual acuity of 20/20 OU, an auscultated diasto...

A vector that produces DNA replicons (multicopy plant episomes) was constructed using elements of the geminivirus tobacco yellow dwarf virus (TYDV). All plant cells contain an integrated chromosomal T-DNA copy of the TYDV elements that provides a template for the production of episomes in the cell nucleus. Transgenic Petunia hybrida plants containing a CaMV 35S promoter-driven chalcone synthase...

The mouse Mitf gene encodes a transcription factor that is regulated by serine phosphorylation and is critical for the development of melanin-containing pigment cells. To test the role of phosphorylation at a particular serine, S73 in exon 2 of Mitf, we used a standard targeting strategy in mouse embryonic stem cells to change the corresponding codon into one encoding an alanine. By chance, we ...

The type of variegation of eyes of white-mottled mutants of D. hydei, either small-spotted or large-spotted, depends on the specific chromosome rearrangement involved. This distinction between mutants, though handsome, is not absolute because very seldomly small-spotted types do show a larger pigment aggregate and some "large-spotted" flies have no large spots at all, but only minor spots. Beca...

Abstract Octopus is a commodity that has important economic value and high export value. Gugop Distric one of the producers octopus in form fresh products processed developed by Kube Mangat. It said species Indonesia are dominated cyanea , but there no scientific certainty for type this village. This study aimed to identify morphometric analysis octopus. research conducted May-July 2022. Inform...

Island biogeography has provided fundamental hypotheses in population genetics, ecology and evolutionary biology. Insular populations usually face different feeding conditions, predation pressure, intraspecific and interspecific competition than continental populations. This so-called island syndrome can promote the evolution of specific phenotypes like a small (or large) body size and a light ...

DEAR EDITOR, Pigmented cutaneous spots, such as actinic/solar lentigines, develop with advancing age and are most commonly observed in chronically sun-exposed areas of the skin, such as the face, neck and dorsa of the hands. Actinic lentigines are characterized histopathologically by hyperpigmentation of the epidermal basal layer with an elongation of the epidermal rete ridges, and an increase ...

The pigmented cells in defined region of a petal constitute the petal spots. Petal spots attract pollinators and are found in many angiosperm families. Several cultivars of tree peony contain a single red or purple spot at the base of petal that makes the flower more attractive for the ornamental market. So far, the understanding of the molecular mechanism of spot formation is inadequate. In th...

Field trials investigating the effect of visual cues on catches of Musca domestica (Diptera: Muscidae) at toxic targets impregnated with the female sex pheromone (Z)-9-tricosene, were conducted in a caged-layer deep-pit poultry unit in southern England. Targets treated with azamethiphos and baited with 2.5 g of 40% (Z)-9-tricosene impregnated beads caught significantly greater numbers of M. dom...

Iranocichla persasp. n. is described from the Shur, Hasanlangi and Minab River drainages flowing into the Persian Gulf at the Strait of Hormuz in southern Iran. It is distinguished from Iranocichla hormuzensis, from the Mehran River drainage, by nuptial males having a bright orange breast and lower part of the head (vs. black), a poorly developed or invisible (vs. distinctive) "Tilapia-mark" in...