title: Sodium chloride enhances cadmium tolerance through reducing cadmium accumulation and increasing anti-oxidative enzyme activity in tobacco.
abstract: The effect of sodium chloride (NaCl) on cadmium (Cd) uptake, translocation, and oxidative stress was investigated using 2 tobacco cultivars differing in Cd tolerance. The growth inhibition of the tobacco plants exposed to Cd toxicity was in part alleviated by moderate addition of NaCl in the culture solution. Cadmium concentration of shoots and roots in the 2 cultivars increased with increasing Cd levels in the solution and decreased with the addition of NaCl. The addition of NaCl could alleviate the oxidative stress caused by Cd toxicity, as reflected by reduced production of malondialdehyde and recovered or enhanced activities of antioxidative enzymes catalase and glutathione peroxidase. The results also showed that the enhancement of antioxidative enzyme activity by NaCl for the tobacco plants exposed to Cd stress is related to induced Ca signaling.
authors: Department of Agronomy, Zhejiang University, Hangzhou, China.
authors: Bing-Lin
authors: BL
authors: Zhang
authors: Sheng-Hua
authors: SH
authors: Shang
authors: Hai-Tao
authors: HT
authors: Zhang
authors: Zahra
authors: Z
authors: Jabeen
authors: Guo-Ping
authors: GP
authors: Zhang
mesh_terms: D000222:Adaptation, Physiological; D002104:Cadmium / Q000633:toxicity*; D002374:Catalase / Q000378:metabolism; D005979:Glutathione Peroxidase / Q000378:metabolism; D008315:Malondialdehyde / Q000378:metabolism; D010084:Oxidation-Reduction; D018384:Oxidative Stress; D018517:Plant Roots / Q000187:drug effects / Q000378:metabolism; D012965:Sodium Chloride / Q000737:chemistry / Q000378:metabolism*; D012987:Soil / Q000737:chemistry; D012989:Soil Pollutants / Q000378:metabolism / Q000633:toxicity*; D014026:Nicotiana / Q000187:drug effects / Q000502:physiology*
chemical_list: D012987:Soil; D012989:Soil Pollutants; D002104:Cadmium; D012965:Sodium Chloride; D008315:Malondialdehyde; D002374:Catalase; D005979:Glutathione Peroxidase