منابع مشابه
The influence of ultraviolet radiation on the pigeon's color discrimination.
Two experiments demonstrated the pigeon's sensitivity to ultraviolet light. In Experiment I, pigeons' responses were reinforced on a multiple schedule with a variable-interval reinforcement schedule in one component and extinction in the other component. Response rates were quite different in the two components where the 520-nm stimuli signalling each component differed only in that one of them...
متن کاملUltraviolet radiation drives methane emissions from terrestrial plant pectins.
Recent studies demonstrating an in situ formation of methane (CH(4)) within foliage and separate observations that soil-derived CH(4) can be released from the stems of trees have continued the debate about the role of vegetation in CH(4) emissions to the atmosphere. Here, a study of the role of ultraviolet (UV) radiation in the formation of CH(4) and other trace gases from plant pectins in vitr...
متن کاملInfluence of Ultraviolet Radiation on Plant Secondary Metabolite Production
Classification of major secondary metabolite groups is described. A short account is also given to ultraviolet (UV) climatology and UV response in plants. Investigations regarding secondary metabolite production in plants, in vitro cultivated plant cell and tissue cultures under UV radiation, particularly UV-B (280-315 nm) and UV-C (200-280 nm) are reviewed. The capacity of plants, callus and t...
متن کاملShape and Volume Changes in Frog Erythrocytes Following Ultraviolet Radiation
Frog erythrocytes in Ringer's solution were exposed to ultraviolet radiation and then followed in camera lucida drawings for changes in shape and dimension. Cell thickness was found to increase while cell width remained constant throughout the period prior to hemolysis. The cell shortened and bulged at the ends during the middle third of the prolytic period while a region around the cell center...
متن کاملChanges in the eyelids and conjunctiva caused by ultraviolet radiation.
The aim of this study was to show the frequency, sex and age distribution of eyelids skin tumor changes and degen erative changes of the conjunctiva for the period of three years (2011-2013) at the Department of Ophthalmology in Split. We analyzed the eyelids skin lesions in biopsy material at the Department of Pathology and the same were compared with the profession of the patients. In this pe...
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ژورنال
عنوان ژورنال: BMC Plant Biology
سال: 2020
ISSN: 1471-2229
DOI: 10.1186/s12870-020-02471-8