Red - Far Red Light Effects On the Adenylil Cyclase and Guanylil Cyclase Activity of Sorghum bicolor Seedlings.

Kerim G.Gasumov, Chizuko Shichijo*, Tohru Hashimoto*

Institute of Botany, Azerbaijan Academy of Sciences, Patamdar Shosse 40, Baku 370073, Azerbaijan Republic, *Department of Biology, Faculty of Science, Kobe University, Rokkodai, Nada-ku, Kobe 657, Japan,

Abstract - Using monochromatic and dichromatic radiation we have shown that reaction of adenylil cyclase (AC) and guanylil cyclase (GC) of Sorghum bicolor seedlings are differently at the different period of year. The activity of AC mainly very high in summer period and strongly reacted on the action of R light. At the early autumn it disappeared and it was appeared again in middle of winter. But the higher GC activity was registered at autumn period and it decreased at the winter when increased AC activity. Probably both of these cNMPs participate in the phytochrome photosignaling and during of year one may substitute for another, although there is possibility participation both of these cNMP in photosignal transduction processes in the same time.