Investigation of interaction between zinc and organic acid (malic acid, citric acid) on antioxidant responses in Zea mays L.
Year: 2013
Type: article
Abstract: Soil pollution by toxic metals is a serious problem for the environment and is also one of the environmental stresses for higher plants. Zinc as a heavy metal plays an important role in many biochemical functions of plants. However, excess amount of zinc is one of the most important growth limiting factors in acid soils. In this investigation five day seedlings of Zea mays L. for 12 days, under hydroponic conditions were treated with concentrations of 0, 400 and 600 of zinc sulfate also malic acid and citric acid 0.32 mM together with zinc concentrations. Then, plants were harvested and dry weight, root and shoot length, Malondialdehyde (MDA), H2O2 content and antioxidant enzyme activity (CAT, APX, GR and GPX) was measured. The results showed that by increasing Zn concentration from 400 to 600 µM, root and shoot dry weight and length were decreased, while MDA, H2O2 content, antioxidant enzyme activity were increased. Also, the present of citric and malic acids decreased toxicity effects. Generally, it was concluded that zinc at high concentration induced toxicity effects in Zea mays L. but presece of malic and citric acid decreased toxicity effects in this plant.
Source: Iranian Journal of Plant Biology
Authors: Zahra Hosseini, Latifeh Pourakbar
Institution: Urmia University
Language: English
Subfield: Plant Science
Domain: Life Sciences
SDG: Zero hunger
Open Access status: diamond
OpenAlex ID: W2274145681