After surgical removal of all salivary secretions ("desalivation"), rats increase their consumption of water while eating dry laboratory chow. In the present experiments, desalivated rats drank even more water while they ate "powdered" high-salt food (i.e., <15-mg food particles). The Na+ concentration of systemic plasma in these animals was not elevated during or immediately after the meal, wh...

With increased dietary NaCl intake (8% NaCl), the borderline hypertensive rat develops hypertension, thus expressing the phenotype of the spontaneously hypertensive parent. Since arterial baroreceptor reflex function is impaired in the spontaneously hypertensive parent, it was the objective of this study to examine arterial baroreceptor reflex function in the borderline hypertensive rat made hy...

Plants are frequently subjected to different kinds of stress, such as salinity and, like other organisms, they have evolved strategies for preventing and repairing cellular damage caused by salt stress. Glycine max L. plants were subjected to different NaCl concentrations (0-200 mM) for 10 days. Treatments with 100 and 200 mM NaCl induced ion leakage and lipid peroxidation augmentation, loss in...

Analysis of polyoma virions by X-ray fluorometry demonstrated that calcium (Ca2+) was associated with the purified virion. Treatment of purified virions with ethyleneglycol-bis-N,N'-tetraacetic acid (EGTA), which chelates Ca2+, and the reducing agent dithiothreitol caused the virions to dissociate. Electron microscopy revealed that the virions were dissociated to the capsomere level. Incubation...

Human toxicity High NaCl intake without corresponding intake of water can lead to hypernatremia: the ratio of sodium to water exceeds normal, and both the plasma sodium concentration and the total body sodium increase. Consequently, the balance of extracellular and intracellular osmolality is disturbed, which can result in several clinical symptoms, like excessive thirst, weakness, headache, ir...

Understanding the mechanisms of plant salt tolerance as a complex trait is an integral part many studies, results which have been used in breeding process. The aim this study was to compare root response two tomato (Solanum lycopersicum L.) genotypes (breeding line YaLF and cultivar Recordsmen) differing tolerance. Rhizogenesis induced shoots vitro with different concentrations NaCl culture med...

Araujia sericifera is an invasive plant with increasing presence in South East Spain, where it produces damage to native trees and shrubs citric orchards. As the climatic conditions study area are becoming harsher due climate change, stress tolerance of this species has been studied during germination vegetative growth. Growth parameters, photosynthetic pigments, ion accumulation, antioxidant m...

The Ah receptor is a presumed member of the superfamily of steroid/thyroid hormone receptors, a trace soluble protein present in a wide variety of vertebrate species that mediates the biological effects of halogenated aromatic hydrocarbons. In this paper, we report the purification to homogeneity of this protein (from the liver of C57BL/6J mice) and its N-terminal amino acid sequence. Selective...

Salt stress is one of the major factors limiting crop productivity worldwide. Grain amaranth is new crop with high yield potential and good nutrition value which can be a good substitute for salt-sensitive crops in saline areas. This research was conducted to evaluate different level of salinity and applied salinity stress at several growth stages on some morphological and physiological traits ...