Rabbits were injected intravenously with luteinizing hormone (lh) or saline solution on Day 9 of pseudopregnancy and killed \m=1/2\,24 or 48 hr later. Corpora lutea of lh-treated animals had decreased significantly in size and progesterone content at 24 and 48 hr compared to corpora lutea of control rabbits. Luteal content and concentration of 20\g=a\-hydroxypregn-4-en-3-onewere increased at \m...

none are ever cured, and that the majority of them may be relieved by copious irrigation of the stomach with concoctions of rhubarb and gentian. Invaluable as this remedy proves in a great number of cases, it cannot be regarded as a panacea for every variety of digestive disturbance, and of late years its preeminence has been challenged by the surgeon. The operative treatment of chronic gastric...

The effect of gentian violet against Candida albicans and non-Candida albicans biofilms formed on polymethylmethacrylate strips was evaluated using a dry weight assay and confocal laser scanning microscopy. The ability of gentian violet to inhibit Candida albicans germination was also assessed. Gentian violet activity against Candida biofilms was demonstrated by a reduction in dry weight, disru...

Interspecific hybridization and introgression can lead to partial genetic homogenization at certain neutral loci between morphologically distinct species and may obscure the species delimitation using nuclear genes. In this study, we investigated this phenomenon through population genetic survey of two alpine plants (Gentiana siphonantha and G. straminea) in the Qinghai-Tibet Plateau, where the...

The mechanism by which the replicative cycle of T4r(+) phage is inhibited by certain nonhost bacterial systems was investigated. Some Bacillaceae, especially Bacillus subtilis, decreased the plaquing efficiency of this virus more than 95% within 24 hr of exposure. Sarcina lutea and Micrococcus sp. both failed to cause any significant change in the infectivity of T4r(+) phage. Preliminary invest...

Our screening for new antiprotozoal antibiotics as described by Nemecet al.1* has revealed a very high incidence of cultures with antiprotozoal activity in the Fungi imperfecti. Nearly all species of the Fungi imperfecti tested are "predacious fungi" characterized by their ability to trap and kill nematodes and/or protozoa2), Dactylaria lutea Routien, obtained from the culture collection of the...

Three new strobilurins F, G and H, antibiotics with antifungal activity, were isolated from cultures of Bolinea lutea Sacc. These new compounds differ from previously described analogs in their aromatic substitution. An HPLC method allows complete separation of all the components.