@article{45ee056cb9a941ddaaa56deb1ed6ef7c,
title = "UV-B induced stress responses in three rice cultivars",
abstract = "UV-B responses of three rice (Oryza sativa L.) cultivars (Sasanishiki, Norin 1 and Surjamkhi) with different photolyase activity were investigated. Carbon dioxide assimilation data support that Sasanishiki was less sensitive to UV-B than Norin 1 and Surjamkhi. UV-B radiation sharply decreased the content of Rubisco protein in Surjamkhi and has no effect in Sasanishiki. The photochemical activities of photosystem (PS) 1 and PS 2 was slightly affected by UV-B treatment. The content of H2O2 and the activities of antioxidant enzymes, catalase (CAT), peroxides (POX) and superoxide dismutase (SOD) were enhanced after UV-B treatment. The activities of CAT and POX isoenzymes in Sasanishiki were more enhanced by UV-B radiation than those in Norin 1 and Surjamkhi.",
keywords = "CO fixation, Catalase, Hydrogen peroxide, Peroxidase, Rubisco, Superoxide dismutase",
author = "I. Fedina and J. Hidema and M. Velitchkova and K. Georgieva and D. Nedeva",
note = "Funding Information: Received 23 November 2008, accepted 8 August 2009. Abbreviations: CAT - catalase; CPDs - cyclobutane pyrimidine dimers; Fm - maximum fluorescence yield in dark-adapted state; Fm'-maximum fluorescence yield in light-adapted state; Fv - variable chlorophyll fluorescence; PAGE - polyacrylamide gel electrophoresis; POX - peroxidase; PPFD - photosynthetic photon flux density; PS 2 - photosystem 2; ROS - reactive oxygen species; LSU - rubisco large subunit; SSU - rubisco small subunit; SOD - superoxide dismutase; TCA - trichloracetic acid; UV-B - ultraviolet B; UVBBE - biological effectiveness of UV-B radiation; ФPS2 - quantum yield of PS 2 photochemistry in the light-adapted state. Acknowledgements: This research was supported by the grant from the National Science Fund of Bulgaria, project B-1533/05 (I. F.), and by Grants-in-Aid for Scientific Research from the Ministry of Education, Culture, Sports, Science and Technology of Japan (19651019 to JH). Two first authors contributed equally to the paper. * Corresponding author; fax: (+359) 2 73 99 52, e-mail: fedina@obzor.bio21.bas.bg",
year = "2010",
doi = "10.1007/s10535-010-0102-3",
language = "English",
volume = "54",
pages = "571--574",
journal = "Biologia Plantarum",
issn = "0006-3134",
publisher = "Springer Netherlands",
number = "3",
}