Degree of ultraviolet radiation damage and repair capabilities are related to G+C content in marine vibriophages

A key issue in the ecology of viruses in the marine environment is the rate of viral production and decay. The ultraviolet (UV) radiation in sunlight has been found to cause loss of infectivity in marine bacteriophages at rates nearly equal to all other decay mechanisms combined. There are 2 main host-mediated mechanisms that can repair UV-damaged phage DNA: photoreactivation and excision repai...

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Molecular Mechanisms of Ultraviolet Radiation-Induced DNA Damage and Repair

DNA is one of the prime molecules, and its stability is of utmost importance for proper functioning and existence of all living systems. Genotoxic chemicals and radiations exert adverse effects on genome stability. Ultraviolet radiation (UVR) (mainly UV-B: 280-315 nm) is one of the powerful agents that can alter the normal state of life by inducing a variety of mutagenic and cytotoxic DNA lesio...

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Repair of DNA Damage lnduced by Ultraviolet Radiation

Studies documenting the depletion of the ozone layer and the resulting increases in UV-B radiation (280-320 nm) at the Earth's surface have served to focus attention on the biological effects of UV light. One obvious target for UVB-induced damage is DNA. Although a11 biological tissues are rich in UV-absorbing agents (largely nucleic acids and proteins) and plants produce additional UV-absorbin...

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Repair of DNA damage induced by ultraviolet radiation.

Studies documenting the depletion of the ozone layer and the resulting increases in UV-B radiation (280-320 nm) at the Earth's surface have served to focus attention on the biological effects of UV light. One obvious target for UVB-induced damage is DNA. Although a11 biological tissues are rich in UV-absorbing agents (largely nucleic acids and proteins) and plants produce additional UV-absorbin...

متن کامل

Repair of DNA Damage lnduced by Ultraviolet Radiation

Studies documenting the depletion of the ozone layer and the resulting increases in UV-B radiation (280-320 nm) at the Earth's surface have served to focus attention on the biological effects of UV light. One obvious target for UVB-induced damage is DNA. Although a11 biological tissues are rich in UV-absorbing agents (largely nucleic acids and proteins) and plants produce additional UV-absorbin...

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Degree of ultraviolet radiation damage and repair capabilities are related to G+C content in marine vibriophages

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