1/18/2024 0 Comments Mn element toxicityWater Air Soil Pollut 157:257–267īaker AJM, Brooks RR (1989) Terrestrial higher plants which hyperaccumulate metallic elements: a review of their distribution, ecology and phytochemistry. J Plant Nutr 29:59–74Īrcher MJG, Caldwell RA (2004) Response of six Australian plant species to heavy metal contamination at an abandoned mine site. This process is experimental and the keywords may be updated as the learning algorithm improves.Īlam S, Kodam R, Akiha F, Kamei S, Kawai S (2006) Alleviation of manganese phytotoxicity in barley with calcium. These keywords were added by machine and not by the authors. Mn can be stored in vacuoles, cell walls, golgi apparatus, chloroplast lamellae structure, and to form black agglomerations in plant cells. Several elements such as P and Ca are reported to have important impacts on the uptake and accumulation of Mn in plants. Mn toxicity could cause stunting, chlorosis, curled leaves, brown lesions, as well as inhibition of photosynthesis and respiration in plants. Mn hyperaccumulation plants have been defined by a threshold foliar concentration of over 10,000 μg g −1 dry weight (DW). Mn can be taken up by plants growing in base-rich soils in high concentrations. In soils, Mn is commonly in the form of +4 and +3 valency states oxides, which could be reduced to the +2 form by some of the ways, such as acidizing soil solution, waterlogging soil, heating and drying, and by the activity of anaerobic and aerobic micro-organisms. It is an essential micronutrient for plants, taken up under the +2 oxidation state, which is crucial in the reactions of some enzymes (malic dehydrogenase, oxalosuccinate decarboxylase, superoxide dismutase), and is an activator of those involved in the tricarboxylic acid cycle. ![]() Manganese (Mn), one of the important trace element in different concentrations in living tissues, is also widely used in the metal industry.
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