UV-damage-mediated induction of homologous recombination in Arabidopsis is dependent on photosynthetically active radiation
نویسندگان
چکیده
منابع مشابه
UV-damage-mediated induction of homologous recombination in Arabidopsis is dependent on photosynthetically active radiation.
Plants are continuously subjected to UV-B radiation (UV-B; 280-320 nm) as a component of sunlight causing damage to the genome. For elimination of DNA damage, a set of repair mechanisms, mainly photoreactivation, excision, and recombination repair, has evolved. Whereas photoreactivation and excision repair have been intensely studied during the last few years, recombination repair, its regulati...
متن کاملHomologous recombination is involved in transcription-coupled repair of UV damage in Saccharomyces cerevisiae.
To efficiently protect the integrity of genetic information, transcription is connected to nucleotide excision repair (NER), which allows preferential repair of the transcribed DNA strands (TS). As yet, the molecular basis of this connection remains elusive in eukaryotic cells. Here we show that, in haploids, the RAD26 gene is essential for the preferential repair of the TS during G1. However, ...
متن کاملUV-absorbing compounds in the coral PociZZopora dumicomis: Interactive effects of UV radiation, photosynthetically active radiation, and water flow
A direct relationship exists between irradiance of solar ultraviolet (UV) radiation and concentration of UV-absorbing compounds, know as mycosporine-like amino acids (MAAs), in the Hawaiian reef coral Pocilloporu dumicornis. However, MAA concentration is also influenced by flow regime and the irradiance of photosynthetically active radiation (PAR). High irradiances of UV radiation in reef envir...
متن کاملArabidopsis RecQI4A suppresses homologous recombination and modulates DNA damage responses.
The DNA damage response and DNA recombination are two interrelated mechanisms involved in maintaining the integrity of the genome, but in plants they are poorly understood. RecQ is a family of genes with conserved roles in the regulation of DNA recombination in eukaryotes; there are seven members in Arabidopsis. Here we report on the functional analysis of the Arabidopsis RecQl4A gene. Ectopic ...
متن کاملPhotosynthetically active radiation: measurements and modelling
Photosynthetically-active radiation is a necessary input in applications dealing with plant physiology, biomass production and natural illumination in greenhouses. Unfortunately, a worldwide routine network for the measurement of photosynthetically-active radiation is not yet established and it is often calculated as a constant ratio of the broadband solar radiation. This ratio is affected by m...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Proceedings of the National Academy of Sciences
سال: 2000
ISSN: 0027-8424,1091-6490
DOI: 10.1073/pnas.230251897