MANGANESE AS ESSENTIAL AND TOXIC ELEMENT FOR PLANTS: TRANSPORT, ACCUMULATION AND RESISTANCE MECHANISMS
نویسندگان
چکیده
منابع مشابه
Manganese as Essential and Toxic Element for Plants: Transport, Accumulation and Resistance Mechanisms
Manganese is an essential element for plants, intervening in several metabolic processes, mainly in photosynthesis and as an enzyme antioxidant-cofactor. Nevertheless, an excess of this micronutrient is toxic for plants. Mn phytotoxicity is manifested in a reduction of biomass and photosynthesis, and biochemical disorders such as oxidative stress. Some studies on Mn toxicity and Mn translocatio...
متن کاملMolybdenum as an Essential Element for Higher Plants.
The preliminary findings that molybdenlum, in minute amounts, improved the growth of barley plants in a culture solution supplied with ammonium salts as the sole source of nitrogen (1), and that a group of seven heavy metals including molybdenum increased the growth of lettuce and asparagus (2), supported the view that the list of essential elements for higher plants is incomplete and suggested...
متن کاملHomeostatic and toxic mechanisms regulating manganese uptake, retention, and elimination.
This review attempts to summarize and clarify our basic knowledge as to the various factors that potentially influence the risks imposed from chronic exposure to high atmospheric levels of manganese (Mn). The studies describe the interrelationship of the different systems in the body that regulate Mn homeostasis by characterizing specific, biological components involved in its systemic and cell...
متن کاملUssing's conundrum and the search for transport mechanisms in plants.
0 0 1??? 4??? Letter Letter Letter Letter Ussing's conundrum and the search for transport mechanisms in plants Plant transport physiologists have developed a range of models describing the movement of ions across cell membranes. However, while substantial progress has been made towards providing precise descriptions of the mechanisms underlying these fluxes, important instances remain in which ...
متن کاملQuantitative Trait Loci and Inter-Organ Partitioning for Essential Metal and Toxic Analogue Accumulation in Barley.
The concentrations of both essential nutrients and chemically similar toxic analogues accumulated in cereal grains have a major impact on the nutritional quality and safety of crops. Naturally occurring genetic diversity can be exploited for the breeding of improved varieties through introgression lines (ILs). In this study, multi-element analysis was conducted on vegetative leaves, senesced fl...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of soil science and plant nutrition
سال: 2010
ISSN: 0718-9516
DOI: 10.4067/s0718-95162010000200008