Adverse effects of UV-B light on the structure and function of the photosynthetic apparatus

Imre Vass, András Szilárd, Cosmin Sicora

Research output: Chapter in Book/Report/Conference proceedingChapter

53 Citations (Scopus)

Abstract

Photosynthetically relevant solar radiation that reaches the surface of Earth is divided into three main spectral regions: ultraviolet-B (UV-B) (290 to 315 nm), UV-A (315 to 400 nm), and photosynthetically active radiation (PAR) (400 to 700 nm). Among those, the UV-B region is selectively attenuated by the stratospheric ozone layer [1,2]. In contrast, the UV-A and PAR radiations have no selective absorber and are affected mainly by light scattering. The biologically most damaging wavelengths below 290 nm, such as the UV-C (200 to 290 nm) region, are absorbed almost completely by the atmosphere and are therefore unimportant for biological processes under natural conditions. Thus, depletion of stratospheric ozone, which occurs as a consequence of human activities, specifically enhances the UV-B radiation reaching the Earth [3-7].

Original languageEnglish
Title of host publicationHandbook of Photosynthesis, Second Edition
PublisherCRC Press
Pages827-843
Number of pages17
ISBN (Electronic)9781420027877
ISBN (Print)9780824758394
DOIs
Publication statusPublished - Jan 1 2005

ASJC Scopus subject areas

  • Agricultural and Biological Sciences(all)
  • Engineering(all)
  • Chemistry(all)

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    Vass, I., Szilárd, A., & Sicora, C. (2005). Adverse effects of UV-B light on the structure and function of the photosynthetic apparatus. In Handbook of Photosynthesis, Second Edition (pp. 827-843). CRC Press. https://doi.org/10.1201/9781420027877