Synergy between cadmium and zinc in bean plants cultivated in multi contaminated soils

• Published in: Acta scientiarum. Agronomy Vol. 41; no. 1; pp. 35829 - e35829
• Main Authors: Almeida, Lorena Gabriela, da Silva, Dayane Meireles, Jorge, Adelcio de Paula, de Souza, Kamila Rezende Dazio, Guilherme, Luiz Roberto Guimaraes, Alves, Jose Donizeti
• Format: Journal Article
• Language: English
• Published: Maringa Universidade Estadual de Maringa 01-01-2019; Editora da Universidade Estadual de Maringá - EDUEM; Eduem (Editora da Universidade Estadual de Maringá)
• Subjects: Agricultural pollution; Agricultural production; AGRONOMY; antioxidante enzymes; Antioxidants; Cadmium; Chemical fingerprinting; Chlorophyll; Conductance; Contamination; Crop production; Data processing; Hydrogen peroxide; Lipid peroxidation; Lipids; Organic chemistry; Peroxidation; Phaseolus vulgaris; Photosynthesis; Physiological effects; Physiological responses; Physiology; Resistance; ROS; Sediment pollution; Soil analysis; Soil contamination; Soils; Stomata; Stomatal conductance; synergism; Synergistic effect; Trace elements; Transpiration; Zinc; synergism; trace elements; photosynthesis; antioxidante enzymes; ROS
• ISSN: 1679-9275; 1807-8621; 1807-8621
• DOI: 10.4025/actasciagron.v41i1.35829

Agricultural species are subjected to a variety of biotic and abiotic stresses, which are the main limitations to crop production. In this context, contamination by trace elements is characterized as an abiotic stress that represents an environmental problem. Due to the physical and chemical similarities between cadmium and zinc, these elements may interact in the environment and may cause antagonistic or synergistic effects. In this way, physiological mechanisms to exclude, detoxify or compartmentalize trace elements that are in excess are crucial for plant survival when exposed to high concentrations of these elements. In this way, the aim of this study was to understand the physiological responses of Phaseolus vulgaris plants subjected to increasing doses of Cd and Zn for 21 days in different soil, Cambisol and Latosol. The activity of antioxidant enzymes, such as SOD, CAT, and APX; hydrogen peroxide content; lipid peroxidation; chlorophyll index; photosynthetic rate; stomatal conductance; and transpiration were analysed. The data obtained showed a specific behaviour of Phaseolus vulgaris plants in each soil analysed. Moreover, it was observed that interactions between both elements resulted in a synergistic effect, negatively affecting all of the parameters analysed.