Activity of enzyme Ascorbate peroxidase and catalase in the tissues of roots and stems Azargol and CMS 19 in sunflower- agricultural soil contaminated with heavy metal cadmium
Journal Title: International Journal of Advanced Biotechnology and Research. - Year 2016, Vol 7, Issue 1
Abstract
ABSTRACT One of the major sources of heavy metal environmental pollutants such as soils that accumulate in the soil and absorbed by plants enters the food chain, of poisoning the plants or causing people feeding them. Heavy metals such as zinc, cadmium, lead can naturally through the weathering of stones and minerals in the soil and accumulate in soil forming process. Cadmium in the periodic table with the atomic number 48 cd is shown. Cadmium on cell division and growth, general plant growth, cell division and plant growth regulation also affects the meristematic region. In order to evaluate the effect of cadmium in sunflower two Azargol and CMS19 was selected. The research was conducted as a factorial randomized complete block design with four replications, with treatments in a greenhouse environment of cadmium in 3 levels (0 - 50 - 100 kg) 3 kg in polyethylene pots with clay and soil the leaves were mixed. According research results ascorbate peroxidase and catalase enzyme activity in the tissues of roots and shoots of sunflower plant figures showed The highest enzyme activity of ascorbate peroxidase in root tissue in Azargol and CMS 19, and the lowest activity in the stem tissue as well as the highest catalase activity in the root and the lowest stem tissue was seen in the treatment of 100 ppm cadmium . As a result Azargol with the activity of APX at the root of their resistance and catalase has any activity against high concentrations of cadmium in no way CMS19 the stress of heavy metals in high concentrations of ascorbate peroxidase activity but compared with Azargol showed resistance to cadmium stress of resistance is slower.
Authors and Affiliations
1Shahrzad Rahnama* and 2Sepideh Torabi
Keywords
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