Sensitivity of Rice to Ultraviolet-B Radiation
نویسندگان
چکیده
منابع مشابه
A Study of Bacterial Sensitivity to Ultraviolet Radiation'
Previous studies ( Bachem and Dushkin, 1932) on the reactions of bacteria to ultraviolet light have demonstrated that these organisms re spond with different sensitivities according to various experimental con ditions. Variables, such as the wave length utilized, the age of the bac terial culture, and the temperature at which the organisms are maintained will all be reflected in the bacterial s...
متن کاملAmplified RNase H activity in Escherichia coli B/r increases sensitivity to ultraviolet radiation.
Strains of E. coli B/r transformed with the plasmid pSK760 were found to be sensitized to inactivation by ultraviolet radiation (UV) and to have elevated levels of RNase H activity. Strains transformed with the carrier vector pBR322 or the plasmid pSK762C derived from pSK760 but with an inactivated rnh gene were not sensitized. UV-inactivation data for strains having known defects in DNA repair...
متن کاملUltraviolet sensitivity gene of Escherichia coli B.
The ultraviolet sensitivity gene of Escherichia coli B was introduced into a K-12 recipient by transduction with phage P1. The uvs gene of E. coli B is cotransducible with the proC locus of K-12, is closely linked to tsx, is not linked to lacZ, and only rarely to purE. The transductants are mucoid, filamentous on irradiation, and show plating-medium response. The order of markers is lacZ proC t...
متن کاملResponse of terrestrial microorganisms to ultraviolet-B radiation in ecosystems.
Recent studies suggest that ultraviolet-B radiation, a major component of global climate change, can affect the community structure, biomass and functioning of terrestrial microorganisms. In this report, these studies are reviewed and gaps in our understanding highlighted so that future research can provide more conclusive evidence on the mechanisms and wider ecological implications of the impa...
متن کاملUltraviolet B but not ultraviolet A radiation initiates melanoma.
Cutaneous malignant melanoma is one of the fastest increasing cancers with an incidence that has more than doubled in the last 25 years. Sunlight exposure is strongly implicated in the etiology of cutaneous malignant melanoma and the UV portion of the sunlight spectrum is considered responsible. Data are, however, conflicting on the roles of ultraviolet B [UVB; 280-320 nanometers (nm)] and ultr...
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: Annals of Botany
سال: 2006
ISSN: 1095-8290,0305-7364
DOI: 10.1093/aob/mcl044