caa a22 4500 463159942 CHVBK 20180406164744.0 cr unu---uuuuu 170326e20070901xx s 000 0 eng 10.1007/s10535-007-0118-5 doi (NATIONALLICENCE)springer-10.1007/s10535-007-0118-5 Cadmium mitigates ultraviolet-B stress in Anabaena doliolum [Elektronische Daten] Enzymatic and non-enzymatic antioxidants [P. Bhargava, N. Atri, A. Srivastava, L. Rai] Impact of ultraviolet-B (UV-B) and Cd, applied individually and in combination, measured in terms of oxygen-evolution, chlorophyll (Chl) and protein contents, lipid peroxidation, and enzymatic and non-enzymatic antioxidants of Anabaena doliolum, revealed a greater oxidative damage induced by UV-B than by Cd. While superoxide dismutase (SOD) showed a greater stimulation by UV-B than Cd, the activities of catalase (CAT) and glutathione reductase (GR) declined after UV-B treatment. Cd treatment, however, enhanced the activities of ascorbate peroxidase (APX) and GR. CAT activity increased at low but decreased at high dose of Cd. Increase in carotenoid (Car) content in UV-B treated cells suggested a shielding effect of Car against UV-B stress. A 15-and 10-fold rise in α-tocopherol (α-TOC) content at high dose of Cd and/or UV-B offered testimony to the antioxidant role of α-TOC. Institute of Experimental Botany, ASCR, 2007 α-tocopherol nationallicence ascorbate nationallicence antioxidative defence system nationallicence carotenoids nationallicence chlorophyll nationallicence oxidative damage nationallicence α-TOC : α-tocopherol nationallicence APX : ascorbate peroxidase nationallicence ASA : ascorbate nationallicence Car : carotenoid nationallicence CAT : catalase nationallicence Chl : chlorophyll nationallicence GSH : glutathione reduced nationallicence GR : glutathione reductase nationallicence MDA : malondialdehyde nationallicence PAR : photosynthetically active radiation nationallicence ROS : reactive oxygen species nationallicence SOD : superoxide dismutase nationallicence UV-B : ultraviolet B radiation nationallicence Bhargava P. Laboratory of Algal Biology, Center of Advanced Study in Botany, Banaras Hindu University, 221005, Varanasi, India aut Atri N. Laboratory of Algal Biology, Center of Advanced Study in Botany, Banaras Hindu University, 221005, Varanasi, India aut Srivastava A. Laboratory of Algal Biology, Center of Advanced Study in Botany, Banaras Hindu University, 221005, Varanasi, India aut Rai L. Laboratory of Algal Biology, Center of Advanced Study in Botany, Banaras Hindu University, 221005, Varanasi, India aut Biologia Plantarum Kluwer Academic Publishers-Consultants Bureau 51/3(2007-09-01), 546-550 0006-3134 51:3<546 2007 51 10535 https://doi.org/10.1007/s10535-007-0118-5 text/html Onlinezugriff via DOI 1 brief-communication jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10535-007-0118-5 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Bhargava P. Laboratory of Algal Biology, Center of Advanced Study in Botany, Banaras Hindu University, 221005, Varanasi, India aut NATIONALLICENCE 700 1- Atri N. Laboratory of Algal Biology, Center of Advanced Study in Botany, Banaras Hindu University, 221005, Varanasi, India aut NATIONALLICENCE 700 1- Srivastava A. Laboratory of Algal Biology, Center of Advanced Study in Botany, Banaras Hindu University, 221005, Varanasi, India aut NATIONALLICENCE 700 1- Rai L. Laboratory of Algal Biology, Center of Advanced Study in Botany, Banaras Hindu University, 221005, Varanasi, India aut NATIONALLICENCE 773 0- Biologia Plantarum Kluwer Academic Publishers-Consultants Bureau 51/3(2007-09-01), 546-550 0006-3134 51:3<546 2007 51 10535 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer