caa a22 4500 606208917 CHVBK 20210128101025.0 cr unu---uuuuu 210128e20150601xx s 000 0 eng 10.1007/s00425-015-2276-6 doi (NATIONALLICENCE)springer-10.1007/s00425-015-2276-6 Iron- and manganese-assisted cadmium tolerance in Oryza sativa L.: lowering of rhizotoxicity next to functional photosynthesis [Elektronische Daten] [Abin Sebastian, M. Prasad] Main conclusion : Cadmium toxicity is alleviated by iron and manganese supplements because of reduction in cadmium accumulation and upholding of redox regulation that prevent cadmium-inducible damage to root growth and photosynthesis. Cadmium toxicity in Oryza sativa L. MTU 7029 was investigated in the presence of different concentrations of the micronutrients Fe and Mn. It had been observed that these micronutrients reduce Cd uptake and minimize Cd-inducible rhizotoxicity. The photosynthetic electron transport chain, which is the hub of Fe containing metalloproteins, was severely affected by Cd and resulted in reduced bioproductivity under Cd stress. However, exogenous Fe restored the photosynthetic electron transport. Thus, due to the maintenance of the photosynthetic electron transport, the Cd tolerance was improved during Fe supplement. Both antioxidant enzymes and non-enzymatic antioxidant metabolites were found to play important roles in the alleviation of Cd stress under Fe or Mn supplement. It is concluded that the presence of excess Fe and Mn protects rice plants from Cd stress. Springer-Verlag Berlin Heidelberg, 2015 Antioxidants nationallicence Cadmium nationallicence Chlorophyll fluorescence nationallicence Photosynthesis nationallicence Rhizotoxicity nationallicence LHCII : Light-harvesting complex II nationallicence MDA : Malondialdehyde nationallicence NADPH : Nicotinamide adenine dinucleotide phosphate nationallicence NPQ : Nonphotochemical quenching nationallicence PQ : Plastoquinone nationallicence ROS : Reactive oxygen species nationallicence Sebastian Abin Department of Plant Sciences, University of Hyderabad, 500046, Hyderabad, Telangana, India aut Prasad M. Department of Plant Sciences, University of Hyderabad, 500046, Hyderabad, Telangana, India aut Planta Springer Berlin Heidelberg 241/6(2015-06-01), 1519-1528 0032-0935 241:6<1519 2015 241 425 https://doi.org/10.1007/s00425-015-2276-6 text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s00425-015-2276-6 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Sebastian Abin Department of Plant Sciences, University of Hyderabad, 500046, Hyderabad, Telangana, India aut NATIONALLICENCE 700 1- Prasad M. Department of Plant Sciences, University of Hyderabad, 500046, Hyderabad, Telangana, India aut NATIONALLICENCE 773 0- Planta Springer Berlin Heidelberg 241/6(2015-06-01), 1519-1528 0032-0935 241:6<1519 2015 241 425