Chromium was not required for normal growth of romaine lettuce (Lactuca sativa L. subsp. longifolia), tomato (Lycopersicon esculentum Mill.), wheat (Triticum aestivum L.), or bean (Phaseolus vulgaris L.) in solution culture containing 3.8 x 10(-4) muM Cr. Plants grown on this purified nutrient solution contained an average of 22 ng Cr/g dry weight. Duckweed (Lemna sp.) grew and reproduced norma...

Essential oil from aerial parts of Artemisia vulgaris L., was obtained by hydro-distillation to produce oil in the yield of 0.25% (w/w). The oil was analyzed by capillary gas chromatography, using mass spectrometric detection. The amount of the samples injected by nano scale included were 1.0 nL (diluted 1.0 μL of sample in 1000 ml of n-pentane, v/v). Twenty three bioactive and flavour molecule...

The investigation was conducted with methanolic extract of Murraya koenigii L for its anti bacterial, phytochemical screening and antioxidant capacities. Antibacterial activity of the extract was evaluated against various Grampositive and Gram-negative bacteria using agar well diffusion technique. For phytocehmical screening such as flavonoids. alkaloids, resins, glycosides, tannins, saponins, ...

Background & Aim: Staphylococcus aureus is one of the bacterial pathogens and the most important factor in hospitalized infections in human community. This bacterium is becoming resistance to chemical drugs quickly. Lots of countries are trying to find new compositions as a suitable replacement for these antibiotics. The aim of this study was antibacterial activity and...

Background & Aim: Staphylococcus aureus is one of the bacterial pathogens and the most important factor in hospitalized infections in human community. This bacterium is becoming resistance to chemical drugs quickly. Lots of countries are trying to find new compositions as a suitable replacement for these antibiotics. The aim of this study was antibacterial activity and...

The search for new insecticides to control dengue fever, chikungunya, and Zika vectors has gained relevance in the past decades. The aim of the present study was to evaluate the larvicidal action of essential oils (EOs) from Thymus vulgaris, Salvia officinalis, Lippia origanoides, Eucalyptus globulus, Cymbopogon nardus, Cymbopogon martinii, Lippia alba, Pelargonium graveolens, Turnera diffusa, ...

Calluna vulgaris L. Hull (Ericaceae) has been used for treatment of urinary tract infections in traditional medicine. In this study we analyzed in vitro antibacterial activity of the plant extracts on different strains of Escherichia coli, Enterococcus faecalis and Proteus vulgaris, as well as the concentrations of total phenols and flavonoids in the extracts. Minimum inhibitory concentration (...

The purpose of this work is to comparatively assess pollen viability five plant species growing in different areas the city Aktobe, Kazakhstan (N 50°18´, W 57°10´). Pollen was assessed through iodine staining on samples grains harvested between April and June 2017 from 100 plants 5 industrial zones, parks, along highways: Ulmus laevis Pall., pinnato-ramosa Dieck., Acer negundo L., Syringa vulga...

Microanatomical studies on the abdominal stretch receptor organs of the crayfish Astacus fluviatilis L. have been carried out in order to establish a basis for the physiological work that has been, and is being carried out on stretch receptors of various species of crayfish. Important differences have been found between these organs and those previously described by Alexandrowicz for the lobste...