Oxy radicals production and control in the chloroplast of Mn-treated rice

By F. Lidon, Miguel Teixeira. 2000

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Manganese-excess induces oxidative stress, lowers the pool of antioxidants and elevates activities of key antioxidative enzymes in rice seedlings (2011, background): “Under such conditions Mn is easily taken up by plant roots and causes retardation in plant growth and interferes with various metabolic processes (Lidon and Teixeira 2000; Hauck et al. 2003).”
Mineral stress: the missing link in understanding how global climate change will affect plants in real world soils (2004, background): “Rice (Oryza sativa L.) chloroplasts produce more active oxygen species under Mn stress (Lidon and Teixeira, 2000), and tobacco (Nicotiana tabacum L.) cell lines selected for Mn tolerance have elevated guaiacol peroxidase activity (Santandrea et al., 2000).”
MANGANESE AS ESSENTIAL AND TOXIC ELEMENT FOR PLANTS: TRANSPORT, ACCUMULATION AND RESISTANCE MECHANISMS (2010, background): “In the second kinetic phase, higher Mn amounts inhibit the non-cyclic photophosphorylation process, promoting an increase in ROS production that parallels an injury increase in the thylakoid peroxidase system (Lidon and Teixeira, 2000b).”