Background: Knowledge of radioactivity levels in human diet is of particular concern for the estimation of possible radiological hazards to human health. However, very few surveys of radioactivity in food have been conducted in Iran therefore the baseline values of the natural radionuclides concentration (40K, 226Ra and 232Th), and man made radionuclide, 137Cs, were determined in twenty six...

During germination at low temperatures, seeds rich in proteins may experience damage to their cytoplasmic membranes. The study aimed investigate the influence of temperature on growth, development, and yield four cultivars soybean, a typical thermophilic species. were germinated 10, 15, 25 °C dark. After 48 h, one part was analyzed for amylase dehydrogenase activity, cell membrane permeability,...

The life cycle of the European eel (Anguilla anguilla) includes two long migratory periods, when the newly hatched leptocephali larvae drift on ocean currents from the Sargasso Sea to the shores of Western Europe and then again up to 30 years later when adult eels swim back to their place of birth for reproductive purposes. Prior to the migration from fresh water (FW) to sea water (SW) adult ye...

Recent experiments on shorebirds have demonstrated that maintaining an active osmoregulatory machinery is energetically expensive. This may, in part, explain diet and habitat selection in birds with salt glands. However little is known about the osmoregulatory costs in birds lacking functional salt glands. In these birds, osmotic work is done almost exclusively by the kidneys. We investigated t...

Red-fleshed grapes are important breeding resources, and study of the content composition phenolic compounds in red-fleshed is lacking. In this study, profiles whole berry, flesh, peel thirteen grape (Vitis) accessions were determined for two consecutive years. The total ranged from 4.795 to 29.875 mg g−1 FW (fresh weight) 1.960 12.593 17.067 60.182 peel. As expected, anthocyanins main compound...

The growing demand for lettuce has prompted the need higher quality standards. Consequently, researchers have focused their efforts on identifying cultural management strategies that can enhance synthesis of antioxidant compounds, leading to improved functional properties lettuce. In this regard, two experiments were conducted hydroponically grown Lollo Bionda ‘Levistro’ and Rosso ‘Carmoli’ let...

this experiment conducted to evaluate the effect of different methods of force molting on performance, egg quality of laying hens with one hundred eighty of 52-wk old hy-line layer in completely randomized design with six treatments, five replicates for 90 days. treatments include 1 - feed withdrawal (fw), 2 - 50 percent alfalfa meal: 50 percent layer ration, 3 - 75 percent alfalfa meal: 25 per...

Abstract The Narcissus pseudonarcissus cv. Carlton contains Amaryllidaceae alkaloids namely galanthamine, lycorine, homolycorine, narciclasine, which are noted for their pharmaceutical properties such as the treatment of early to mid-stage Alzheimer's diseases, cancer, tumor etc. Alkaloid biosynthesis using plant in vitro systems has been considered a tool drug discovery and pathways starting b...

OBJECTIVE To assess the potency of calcium propionate (CAP) used as silage additive, an experiment was carried out to evaluate the effect of CAP on the nitrogen transformation, fermentation quality and aerobic stability of alfalfa silages. METHODS Alfalfa was ensiled with four levels of CAP (5, 10, 15, and 20 g/kg of fresh weight [FW]) in laboratory silos for 30 days. After opening, the silag...

To investigate the enzyme variations responsible for the synthesis of phenolics, 40 day-old adventitious roots of Panax ginseng were treated with 200 microM methyl jasmonate (MJ) or salicylic acid (SA) in a 5 L bioreactor suspension culture (working volume 4 L). Both treatments caused an increase in the carbonyl and hydrogen peroxide (H2O2) contents, although the levels were lower in SA treated...