Seedlings of papaya (Carica papaya), cultivar Golden, were exposed to a nitric oxide donor, sodium nitroprusside (SNP), Papaya meleira virus (PMeV) and yeast (Saccharomyces cerevisiae, as a model fungal elicitor). The aim was to investigate the response of C. papaya to infection and the role of nitric oxide in this process. SNP alone led to a short lived (6 h) burst of peroxidase activity and a...

The effectiveness of a trap for triatomines baited with yeast cultures has been previously demonstrated for Triatoma infestans in laboratory assays. We report here results from laboratory assays testing yeast traps for Triatoma sordida, Triatoma brasiliensis, Triatoma pseudomaculata, and Panstrongylus megistus. All assays were conducted in an open experimental arena 100 cm x 100 cm, with two tr...

Numerous hypotensive drugs result in decreasing the taste sensitivity or total loss of taste perception. The aim of this study was to evaluate the influence of selected groups of hypotensive drugs used in combined treatment of the taste sensitivity in patients suffering from primary arterial hypertension. The study was conducted in a group of 84 patients aged 30-60, including 43 women and 41 me...

Based on direct sucrose conversion, the bacterium Burkholderia sacchari is an excellent producer of the microbial homopolyester poly(3-hydroxybutyrate) (PHB). Restrictions of the strain's wild type in metabolizing structurally related 3-hydroxyvalerate (3HV) precursors towards 3HV-containing polyhydroxyalkanoate (PHA) copolyester calls for alternatives. We demonstrate the highly productive bios...

The cryoprotective additives (CPAs) used in the frozen storage of microorganisms (viruses, bacteria, fungi, algae, and protozoa) include a variety of simple and more complex chemical compounds, but only a few of them have been used widely and with satisfactory results: these include dimethylsulfoxide (Me2SO), glycerol, blood serum or serum albumin, skimmed milk, peptone, yeast extract, saccharo...

OBJECTIVES The aim of this study was to determine the relationship between polymorphisms of peroxisome proliferator activated receptor - PPAR gamma-2 (Pro12Ala, C1431T) and beta 3-adrenergic receptor - ADRB3 (Trp64Arg) and dietary habits in a group of postmenopausal women who were not under hypolipidemic treatment. DESIGN Genetic, nutritional and anthropometric parameters were measured in 213...

two organisms with bacteriophage active against the bacterial contaminant. We undertook to carry out the latter procedure. The contaminating bacteria were isolated by plating on agar and identifiedv as belonging to the salmonella group. They fermented glucose, mannite, maltose, arabinose and dulcite with the production of acid and gas; lactose, saccharose, and salicin were not affected. Litmus ...

This work describes a micropropagation protocol for plants of Cynara scolymus cv. Early French, employing cyclodextrins during the rhizogenesis stage. Shoot apices were established in basic culture medium consisting of Murashige Skoog mineral salts modified by 50% reduction in NH4NO3 and KNO3, Heller's micronutrients, Gamborg's vitamins, 100 mg l ÿ1 myo-inositol, 30 g lÿ1 saccharose and 8.0 g l...

The experiments were designed to determine the critical dilution of sucrose which would elicit a response when brought into contact with the antenna, as well as to find out the dilutions that would obtain a like response on the fore-tarsus. The criterion of response was the complete extension of the proboscis. Minnich (1921-32) has demonstrated that the tarsal joints of many insects (certain bu...