• Publications
  • Influence
UV-induced DNA damage and repair: a review.
  • R. Sinha, D. Häder
  • Chemistry, Medicine
    Photochemical & photobiological sciences…
  • 10 April 2002
This review deals with UV-induced DNA damage and the associated repair mechanisms as well as methods of detectingDNA damage and its future perspectives.
Water pollution in Pakistan and its impact on public health--a review.
This review discusses a detailed layout of drinking water quality in Pakistan with special emphasis on major pollutants, sources of pollution and the consequent health problems.
Effects of solar UV radiation on aquatic ecosystems and interactions with climate change.
Several studies suggest that the influence of UV-B at the ecosystem level may be more pronounced on community and trophic level structure, and hence on subsequent biogeochemical cycles, than on biomass levels per se.
UV-B-induced formation of reactive oxygen species and oxidative damage of the cyanobacterium Anabaena sp.: protective effects of ascorbic acid and N-acetyl-L-cysteine.
  • Yuying He, D. Häder
  • Chemistry, Medicine
    Journal of photochemistry and photobiology. B…
  • 1 March 2002
It is suggested that ascorbic acid exhibited significantly higher protective efficiency with respect to DNA strand breaks and survival than NAC while NAC appears to be especially effective in defending the photosynthetic apparatus from oxidative damage.
Effects on aquatic ecosystems
New research strengthens previous evidence that solar UV affects growth and reproduction, photosynthetic energy-harvesting enzymes and other cellular proteins, as well as photosynthetics pigment contents in aquatic ecosystems.
Effects of UV radiation on aquatic ecosystems and interactions with climate change.
There remains the question as to whether a decrease in population size of the more sensitive primary producers would be compensated for by an increase in the population sizes of more tolerant species, and therefore whether there would be a net negative impact on the absorption of atmospheric carbon dioxide by these ecosystems.
Detection of reactive oxygen species (ROS) by the oxidant-sensing probe 2',7'-dichlorodihydrofluorescein diacetate in the cyanobacterium Anabaena variabilis PCC 7937.
This is the first report for the detection of intracellular ROS in a cyanobacterium by fluorescence microscopy using DCFH-DA and thereby suggesting the applicability of this method in the study of in vivo generation of ROS.
The role of UV-B radiation in aquatic and terrestrial ecosystems--an experimental and functional analysis of the evolution of UV-absorbing compounds.
The central theme of the work was the investigation of the effectiveness of the various screening compounds from the different species studied in order to gain some perspective of the evolutionary adaptations from lower to higher plant forms.
Rising CO2 and increased light exposure synergistically reduce marine primary productivity
It is shown that the combination of an increase in both CO2 and light exposure negatively impacts photosynthesis and growth of marine primary producers, and this may cause a widespread decline in marine primary production and a community shift away from diatoms.
Ultraviolet-absorbing/screening substances in cyanobacteria, phytoplankton and macroalgae
Abstract Continuous depletion of the stratospheric ozone layer has resulted in an increase in ultraviolet-B (UV-B; 280–315 nm) radiation reaching the Earth's surface. UV radiation has been reported