Monitoring the sensitivity of selected crops to lead, cadmium and arsenic
Journal Title: Журнал ÑтреÑÑ-физиологии и биохимии - Year 2011, Vol 7, Issue 4
Abstract
Heavy metals are highly toxic environmental pollutants. In plants, these compounds cause numerous slighter or stronger toxic effects. They inhibit root and shoot growth and yield production, affect nutrient uptake and homeostasis, and are frequently accumulated by agriculturally important crops. Effects of heavy metals on five selected species of agricultural crops were monitored. We focused our attention to general and commonly used stress indicators such as seed germination, weight and length of roots and shoots. Each of these characteristics was dependent on the tested plant species and tested heavy metals. Dosage of lead (500 mg/l) had little effect on seed germination, cadmium (300 mg/l) significantly affected seed germination of pea and barley, arsenic (100 mg/l) caused total inhibition of seed germination in all tested plant species. Plants grow in soil contaminated with heavy metals showed several symptoms of metal toxicity (chlorosis, necrosis of leaf tips, blackening of roots). In general, the highest tolerance to tested metal ions was observed in both varieties of bean, and the lowest sensitivity was observed in soybean plants. The highest degree of toxicity was shown to have tested doses of cadmium and arsenic, the lowest the doses of lead. In general, the lowest tolerance indexes were determined based on the decrease in fresh weight of roots.
Authors and Affiliations
B Piršelova
Keywords
Related Articles
- EP ID EP119336
- DOI -
- Views 114
- Downloads 0
Effect of Short Term NaCl Stress on Cultivars of S. lycopersicum: A Comparative Biochemical Approach
Tomato is a crop plant with high fruit nutritive value and other useful properties. The cultivation of this species is dependent on many environmental factors, e.g. temperature, salinity, nutrients etc, affecting the yie...
Wheat can acclimate to seawater by pretreatment with kinetin and spermine through osmotic adjustment and solutes allocation
A key issue in salt adaptation is the osmotic adjustment, therefore, during ear emergence the effect of exogenous application of kinetin and spermine on osmotic pressure (OP) and solutes allocation (total soluble sugars,...
ВЛИЯНИЕ ГИПО- И ГИПЕРТЕРМИИ НА ЗАРАЖЕНИЕ КАРТОФЕЛЯ ВОЗБУДИТЕЛЕМ КОЛЬЦЕВОЙ ГНИЛИ
Изучали влияние возбудителя кольцевой гнили Clavibacter michiganensis subsp. sepedonicus (Cms) на активность внеклеточной пероксидазы суспензионных клеток картофеля двух различающихся по устойчивости к патогену сортов ка...
Quantitative Alterations in the Products of Lipid Peroxidation under Stress
Development of changes in the content of nitrogen oxide (NO) in the mitochondrial and cytosolic fractions of the brain and cardiomyocytes as well as in the blood plasma of white rats under the conditions of isolation of...
Protective Effect of Ghrelin on Isoniazid-induced Liver Injury in Rat
Ghrelin (GHR) is a peptide that has protective effects on many tissues injury. It has anti-inflammatory and anti-oxidant effects. Isoniazid (INH) a widely used antituberculosis drug, has hepatotoxic side effect. The aim...