TOLERANCE OF ALFALFA TO MANGANESE TOXICITY IN SAND CULTURE

Effect of yeast culture supplementation of alfalfa silage or alfalfa hay fed to lactating dairy cows

Relevance to manganese toxicity

Manganese shares the uniport mechanism of mitochondrial calcium influx, accumulates in mitochondria and is cleared only very slowly from brain. Using dual-label isotope techniques, we have investigated both Mn2" and Ca2" mitochondrial efflux kinetics. We report that (1) there is no significant Na+-dependent Mn2" efflux from brain mitochondria; (2) Mn2" inhibits both Na+-dependent and Na+-indepe...

effects of salinity and manganese on physiological and echophysiological characteristics of pistachio seedlings (in sand culture)

in order to investigate the effect of mn and salinity on some physiological and echophysiological characteristics of pistachio seedlings (cv. badami-e-zarand) in sand culture (perlite medium), a factorial greenhouse experiment was carried out in the framework of a completely randomized design comprised of two factors namely: salinity (zero, 75, 150, 225 and 300 mm nacl) and mn (zero, 12, 24 and...

Manganese toxicity upon overexposure.

Manganese (Mn) is a required element and a metabolic byproduct of the contrast agent mangafodipir trisodium (MnDPDP). The Mn released from MnDPDP is initially sequestered by the liver for first-pass elimination, which allows an enhanced contrast for diagnostic imaging. The administration of intravenous Mn impacts its homeostatic balance in the human body and can lead to toxicity. Human Mn defic...

Manganese exposure, essentiality & toxicity.

Manganese (Mn) is an essential element present in all living organisms and is naturally present in rocks, soil, water, and food. Exposure to high oral, parenteral, or ambient air concentrations of Mn can result in elevations in Mn tissue levels and neurological effects. However, current understanding of the impact of Mn exposure on the nervous system leads to the hypothesis that there should be...