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Updated: Aug 24, 2026

Measuring Gene Expression in Bombarded Barley Aleurone Layers with Increased Throughput
Published on: March 30, 2018
[Long time combined action of cadmium and ultraviolet radiation on barley plants]
E M Selezneva1, A N Ratnikov, L I Goncharova
1Russian Institute of Agricultural Radiology and Agroecology, Russian Academy of Agricultural Sciences, Obninsk, 249030 Russia. riar@obninsk.org
Abstract:
In a greenhouse experiment the development of biomass and grain yield was studied under a long-time combined action of medium-wave UV-radiation and cadmium (exposure levels of the agents were, respectively, 0.65-1.30 W/m2, 5 and 50 mg/kg of soil). The influence of the metal on the UV-radiation induced inhibition of the vegetative mass development was found to be dependent on the duration of stress: with increase in the exposure time the cadmium ability for cushioning negative effects of irradiation decreases. Simultaneously the contribution of the metal and its interaction with UV-radiation to the variability in the observed indicator (biomass) becomes much less significant than that of irradiation. Considerable independent of cadmium concentration reduction in the grain yield becomes evident at a rate of medium-wave UV-radiation intensity of 0.65 W/m2, whereas at UV-radiation exposure levels of 1.30 W/m2 and the heavy metal concentration of 50 mg/kg in soil practically total inhibition of grain productivity occurred. As for grain formation, relative effects of irradiation were somewhat higher than these of cadmium and its interaction with UV-radiation.
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