Advances in selected plant physiology aspects by Giuseppe Montanaro; Bartolomeo Dichio

By Giuseppe Montanaro; Bartolomeo Dichio

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Effect of drought and rewatering on the metabolism of Lupinus albus organs. 11, 1203-1210. Pinto, A. , Alves, A. , Candeias, A. , Cardoso, A. , Martins, L. , Mourato, M. , Goncalves, M. L. , & Mota, A. M. (2009). Cadmium accumulation and antioxidative defences in Brassica juncea L. Czern, Nicotiana tabacum L. and Solanum nigrum L. 8-12, 661-676. , & Horemans, N. (2002). Ascorbate and glutathione: guardians of the cell cycle, partners in crime? 6-8, 537-548. Prasad, M. N. V. (2004). Heavy Metal Stress in Plants: Springer.

2004). Trace element contamination cause abiotic stress in plants and it can affect crop production and quality. Certain metals, like copper, are essential for plants, but at high concentrations (depending on plant species) can be considered toxic. Other elements like cadmium and arsenic (a metalloid), while not essential elements for plants, are widespread pollutants that are present in nature due to both natural and manmade activities. Plants have developed different strategies to cope with these stresses.

2008; Mobin & Khan, 2007). Fig. 1. Hydrogen peroxide content in Nicotiana tabacum L. plants grown in nutrient solution, with excess copper and cadmium. 2 ROS effect in different cellular components (lipids, DNA, proteins, carbohydrates) When cell homeostasis is affected by a given stress, ROS production increases to the point where it can damage cellular components and ultimately lead to cell death. ROS can affect lipids, proteins, carbohydrates and DNA and the detailed mechanisms are well detailed in Moller et al.

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