Sensitivity of rice to ultraviolet-B radiation

Annals of Botany
Jun Hidema, Tadashi Kumagai

Abstract

Depletion of the stratospheric ozone layer leads to an increase in ultraviolet-B (UVB: 280-320 nm) radiation reaching the earth's surface, and the enhanced solar UVB radiation predicted by atmospheric models will result in reduction of growth and yield of crops in the future. Over the last two decades, extensive studies of the physiological, biochemical and morphological effects of UVB in plants, as well as the mechanisms of UVB resistance, have been carried out. In this review, we describe recent research into the mechanisms of UVB resistance in higher plants, with an emphasis on rice (Oryza sativa), one of the world's most important staple food crops. Recent studies have brought to light the following remarkable findings. UV-absorbing compounds accumulating in the epidermal cell layers have traditionally been considered to function as UV filters, and to play an important role in countering the damaging effects of UVB radiation. Although these compounds are effective in reducing cyclobutane pyrimidine dimer (CPD) induction in plants exposed to a challenge exposure to UVB, certain levels of CPD are maintained constitutively in light conditions containing UVB, regardless of the quantity or presence of visible light. These findin...Continue Reading

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Citations

May 23, 2008·Critical Reviews in Plant Sciences·Miguel Garcia-Diaz, Katarzyna Bebenek
Apr 30, 2009·Annual Review of Plant Biology·Gareth I Jenkins
Mar 27, 2007·Journal of Photochemistry and Photobiology. B, Biology·Long ChengYi Cao
Apr 5, 2008·Photochemical & Photobiological Sciences : Official Journal of the European Photochemistry Association and the European Society for Photobiology·Yutaka IwamatsuJun Hidema
Jun 7, 2019·Physiology and Molecular Biology of Plants : an International Journal of Functional Plant Biology·Parammal Faseela, Jos Thomas Puthur
Jan 17, 2014·Physiology and Molecular Biology of Plants : an International Journal of Functional Plant Biology·Aria DolatabadianArman Beyraghdar Kashkooli
Mar 1, 2012·Photochemical & Photobiological Sciences : Official Journal of the European Photochemistry Association and the European Society for Photobiology·Mika TeranishiJun Hidema
Jul 6, 2019·Frontiers in Plant Science·Vanesa Eleonora TossiSandra Irene Pitta-Álvarez
Dec 31, 2020·Plant, Cell & Environment·Muhammad IdrisMoritoshi Iino

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