Uv-b Radiation Effects On Light Signaling Pathway In Wheat

With the destruction of the environment, UV-B radiation has been stronger than before, Enhanced UV-B radiation on plants has become a priority research areas. Strong UV-B radiation can cause plant morphology, oxidase, gene and a series of physiological and biochemical changes. To a detailed explanation of UV-B radiation on plants is bound to UV-B radiation need to know what kind of signal through the pathway resulting in plants that physiological and biochemical changes. UV-B radiation effects on wheat light signaling pathway is still in the stage of accumulation data.both at home and abroad. In this study, during the UV-B radiation, which components in wheat involved in UV-B light signaling pathway, and various components in different UV-B radiation resulting from changes in circumstances, for the UV-B radiation on the signaling pathway provide a basis for research.This thesis, we study young winter wheat, research different doses of UV-B Radiation on the impact of light signaling pathway on the wheat. in the treatment of three different doses of UV-B radiation——10 KJ.m-2.d-1,12KJ.m-2.d-1,10KJ.m-2.d-1 on wheat, by G protein activator, Ca2+ antagonist, serine/threonine protein kinase antagonist effect on wheat,Came to the conclusion that in wheat G proteins, Ca2+, CaM, serine/threonine protein kinase, anthocyanin, involved in the light signaling pathway induced by UV-B radiation; Low doses of UV-B radiation (10KJ.m-2.d-1,8KJ.m-2.d-1) and high doses of UV-B radiation (14KJ.m-2.d-1) induced different signaling pathway to product anthocyanin; 10 KJ.m-2.d-1,12 KJ.m-2.d-1 doses of UV-B radiation will induce CHS(chalcone synthase) gene expression,on the other hand, 14 KJ.m-2.d-1 doses of UV-B radiation will inhibit CHS gene expression.