Rare earth elements - yttrium and higher plants
2010
Kastori, R.R., Faculty of Agriculture, Novi Sad (Serbia) | Maksimovic, I.V., Faculty of Agriculture, Novi Sad (Serbia) | Zeremski-Skoric, T.M., Institute of Field and Vegetable Crops, Novi Sad (Serbia) | Putnik-Delic, M.I., Faculty of Agriculture, Novi Sad (Serbia)
Rare earth elements (REEs) form a chemically uniform group with very similar physical and chemical properties. The REEs include the elements scandium, yttrium and the lanthanides from lanthanum to lutetium. They are widely distributed and present in all parts of the biosphere. REEs are required in industry, agriculture, medicine, biotechnology, environmental problems and many other fields. Lately, many experiments show their positive or negative, first of all nonspecific, effect on life processes of higher plants as well as growth and yield of cultivated species, but the physiological mechanisms are still not well understood. It has been determined that yttrium is widely distributed in plants, as well as that certain plant species uptake yttrium at different extent. Its highest accumulation is in the root and the leaf. Although yttrium was discovered more than two centuries ago, its effect on higher plants - their anatomical and morphological built, physiological and biochemical processes etc. - is very little known. One of the basic reasons is that yttrium, as well as other REEs elements, according to current knowledge, is not biogenic for higher plants and - wider - for live organisms. The objective of this paper is to concisely show previous knowledge about yttrium in the plant world.
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