Effect of manganese on cadmium toxicity in maize seedlings

• Published in: Plant, soil and environment Vol. 52; no. 4; pp. 143 - 149
• Main Authors: Palove-Balang, P.(Slovenska Akademia Vied, Bratislava (Slovak Republic). Botanicky Ustav) E-mail:peter.palove-balang@savba.sk, Kisova, A.(Slovenska Akademia Vied, Bratislava (Slovak Republic). Botanicky Ustav), Pavlovkin, J.(Slovenska Akademia Vied, Bratislava (Slovak Republic). Botanicky Ustav), Mistrik, I.(Slovenska Akademia Vied, Bratislava (Slovak Republic). Botanicky Ustav)
• Format: Journal Article
• Language: English
• Published: Czech Academy of Agricultural Sciences 01.04.2006
• Subjects: ABSORCION DE SUSTANCIAS NUTRITIVAS; ABSORPTION DE SUBSTANCES NUTRITIVES; ACTIVIDAD ENZIMATICA; ACTIVITE ENZYMATIQUE; CADMIO; CADMIUM; CALCIUM SULPHATE; CELL MEMBRANES; CELLS; CELLULE; CELULAS; CRECIMIENTO; CROISSANCE; CULTIVO HIDROPONICO; CULTURE HYDROPONIQUE; ENZYME ACTIVITY; GROWING MEDIA; GROWTH; HYDROPONICS; maize roots; MANGANESE; MANGANESE SULPHATE; MANGANESO; MEMBRANAS CELULARES; MEMBRANE CELLULAIRE; membrane potential; NITRATE; NITRATE REDUCTASE; nitrate reduction; nitrate uptake; NITRATES; NITRATO REDUCTASA; NITRATOS; NUTRIENT UPTAKE; PLANTULAS; PLANTULE; RACINE; RAICES; ROOTS; SEEDLINGS; SUBSTANCE TOXIQUE; SUBSTRAT DE CULTURE; SUBSTRATOS DE CULTIVO; SULFATE DE CALCIUM; SULFATE DE MANGANESE; SULFATO DE CALCIO; SULFATO DE MAGNESIO; SUSTANCIAS TOXICAS; TOXIC SUBSTANCES; TOXICIDAD; TOXICITE; TOXICITY; ZEA MAYS
• ISSN: 1214-1178; 1805-9368
• DOI: 10.17221/3358-pse

The interaction of manganese with cadmium toxicity was studied on maize plants grown in hydroponics. Mn supplied as MnSO4 clearly alleviated the toxic effect of Cd on the root growth of maize seedlings. The magnitude of alleviation was dose dependant, the total abolition of Cd toxicity (10 microM) on root growth was observed at Mn/Cd ratio of 20:1. The 12 h pre-treatment with 10 microM Cd was generally toxic for nitrate uptake and reduction (both determined in Cd-free media). The beneficial effect of 100 microM Mn on this toxicity was confirmed for the low-affinity nitrate uptake system, but on the other hand, Mn alone seems to be slightly toxic for the high affinity nitrate uptake system and for the nitrate reductase activity.