We determined the structures of Nod factors produced by six different Bradyrhizobium sp. strains nodulating the legume tree Acacia albida (syn. Faidherbia albida). Compounds from all strains were found to be similar, i.e., O-carbamoylated and substituted by an often sulfated methyl fucose and different from compounds produced by Rhizobium-Mesorhizobium-Sinorhizobium strains nodulating other spe...

Clotrimazole (Bay b 5097) is a new synthetic antifungal drug with in vitro activity against Candida spp., Torulopsis glabrata, and Saccharomyces spp. Pharmacological studies in man after the oral administration of 1.5 and 3 g of clotrimazole produced mean peak concentrations in the serum of 1.16 and 1.29 mug/ml, respectively, 2 hr after administration. In six patients taking 1.5 g of clotrimazo...

A simple medium was developed, using esculin as the substrate, for the isolation and identification of Cryptococcus neoformans. C. neoformans produced a brown-black pigment on the medium; all other yeasts produced no pigment or were light yellow. Esculin is beta-glucose-6,7-dihydroxycoumarin. C. neoformans produced pigment because the 6,7-dihydroxycoumarin component of the esculin molecule was ...

The question of whether or not perennial plants senesce at the organism level remains unresolved. The aim of this study was to unravel whether or not plant age can influence the production and composition of seeds. Flower and seed production was examined in 3-, 8-, and 13-year-old Cistus albidus plants growing in experimental plots corresponding to the F2, F1, and F0 generations of the same pop...

The antifungal activities of several solanum alkaloids and their derivatives were examined against a variety of fungal strains such as Candida albicans and Trichophyton spp. Solacongestidine (I) showed the strongest activity (minimum inhibitory concentration) against C. albicans (0.8 ƒÊg/ml), T. rubrum (0.4 ƒÊg/ml) and Cryptococcus albidus (0.78 ƒÊg/ml), and also showed lesser activities agains...

The temperature range of growth was 5-39.5 C. Candida krusei was able to grow at 46 C. Torulopsis albida was able to grow at 0 C. The sugar tolerance was 50-55O Brix syrup. Saccharomyces ro8ei and Torulopsis lactis-condensi were able to tolerate 600 Brix syrup. Attractivity tests with dried-fruit beetles indicated that they responded most to Candida krusei, then Hanseniaspora valbyensis, fig ti...

The system for production of inoculum of arbuscular mycorrhizal fungi (AMF) using sand and vermiculite irrigated with nutrient solution is promising. However, organic amendments added to the substrate can stimulate sporulation of AMF and replace the nutrient solution. The aim of this study was to maximize the production of AMF (Acaulospora longula, Claroideoglomus etunicatum, Dentiscutata heter...

The present investigation is concerned with the biosynthesis of the commonly occurring open chain amino acids and proline. The methods used were tracer techniques, including isotopic competition. Since similar studies were recently carried out with Escherichiu coli (13),l the results obtained here with Torulopsis utilis and Neurospora crassa are discussed from the point of view of comparative b...