Good yields of pyocin are obtained when Pseudomonas aeruginosa is grown in Trypticase soy broth (without glucose) (BBL) plus 1% potassium nitrate. As a result, pyocin production for routine epidemiological typing can be done in screw-cap tubes, without mechanical agitation or mitomycin C induction.

HIGHLIGHTS Methods to carry out the vegetative and sexual propagation of C. galioides were investigated. Cuttings can be used in without use growth regulators. Gibberellic acid potassium nitrate increased germination percentage seeds. Seeds treated with gibberellic germinated earlier than other treatments.

A highly effective biological fertilizer (bio-fertilizer) can be produced cheaply in countries that have a source of a suitable type of zeolitic rock (tuff). Such rocks occur worldwide in areas of past or current volcanism. In the event of explosive volcanic activity huge volumes of silicic glass and other debris are projected into the atmosphere. Reaching high altitude the fine material is sep...

Chemicals: Thallium (I) nitrate (TlNO3, 99.9%), tetrabutylammonium iodide (TBAI, 99%), tetrabutylammonium bromide (TBABr, 98%), 1-octadecene (ODE, tech. 90%), oleylamine (OLA, tech. 70%), oleic acid (OA, tech. 90%), potassium bromide (KBr, 99%) and fluorescein sodium salt (98.5-100.5%) were purchased from Sigma-Aldrich. Hexane (98%), toluene (99.5%), 1-butanol (99.5%) and acetonitrile (99.8%) w...

Process safety, as well as the safe storage and transportation of hazardous or reactive chemicals, has been a topic of increasing interest in the last few decades. The increased interest in improving the safety of operations has been driven largely by a series of recent catastrophes that have occurred in the United States and the rest of the world. A continuous review of past incidents and disa...

To determine the efficacy of a cosmetic aluminium lactate/potassium nitrate/hydroxylapatite toothpaste for reduction dentine hypersensitivity (DH) pain as compared to control containing potassium nitrate. The study was randomised, examiner-blind, two treatment arm, parallel controlled trial in healthy adults with at least 2 sensitive teeth (Schiff >2). At baseline, immediately after and 7 14 da...

The movements of calcium in muscle have been followed during contraction and contracture to test the hypothesis that the release of calcium from the surface of the muscle membrane during stimulation initiates the contractile mechanism. Nitrate ion increases the calcium influx during a single twitch and during potassium contracture, and also increases the tension developed. The increased entry o...

the effects of an azotobacter chrococum isolate (strain ag11) and vermicompost and their combined effects on a rain-fed winter wheat (var. zagros) nutrient uptake and growth and soil water content were investigated with a farm trial.  the dry matter yield was determined in 5 occasions. gravimetric soil water content, soil microbial respiration and the number of azotobacter were determined at sa...

The involvement of ionic channel/s in signal transduction and the amplification of phytohormones induced impact on the processes leading to seed germination provoked us to undertake the present study. Seeds of Cicer arietinum (L.) cv. Avarodhi were soaked in the aqueous solutions of 28homobrassinolide (HBR) and/or K+, for a limited period, and subsequently transferred to distilled water, for th...