The effect of selenium on the accumulation of some metals in Zea mays L. plants treated with indole-3-acetic acid.
In this study, we examined the relationship between the accumulation of NaHSeO3, the plant hormone (IAA), and some nutrient elements (K(+), Na(+), Ca(2+)) in the tissues of the roots, mesocotyls and leaves of Zea mays L. plants. Our experiments were carried out with eight- to nine-day old maize plants (Zea mays L. var K33xF2) grown on Hoagland's medium containing the standard macro- and microelements, IAA and NaHSeO(3). The accumulation of selenium, potassium, sodium and calcium in the seedlings was measured by emission spectroscopy using a spectrometer with excitation by the argon inductively coupled plasma technique (ICP-AES). We observed that when selenite and phytohormone (IAA) are present in the external medium of growing plants, they change the uptake and accumulation of some cations (K(+), Na(+), Ca(2+)) in the leaf, mesocotyl and root tissues. The change of transport of some nutrient elements is probably one of the first observed symptoms of selenium's effects on plants.
Pazurkiewicz-Kocot
Krystyna
K
Department of Plant Physiology, Faculty of Biology and Environmental Protection, Silesian University, Jagiellońska 28, 40-032 Katowice, Poland.
Galas
Witold
W
Kita
Andrzej
A
D002118:Calcium / Q000378:metabolism; D007210:Indoleacetic Acids / Q000494:pharmacology*; D008670:Metals / Q000378:metabolism*; D010937:Plant Growth Regulators / Q000494:pharmacology; D011188:Potassium / Q000378:metabolism; D012643:Selenium / Q000378:metabolism / Q000633:toxicity*; D012964:Sodium / Q000378:metabolism; D018038:Sodium Selenite / Q000633:toxicity; D003313:Zea mays / Q000187:drug effects* / Q000254:growth & development / Q000378:metabolism*
D007210:Indoleacetic Acids; D008670:Metals; D010937:Plant Growth Regulators; C030737:indoleacetic acid; D012964:Sodium; D012643:Selenium; D018038:Sodium Selenite; D011188:Potassium; D002118:Calcium