J Integr Plant Biol. ›› 1978, Vol. 20 ›› Issue (4): -.

• Research Articles •    

The Effect of Aureomycin on Photosynthetic Rate of Wheat Leaf and Photophosphorylation Reactions of Isolated Chloroplasts

Huang Chuo-hui, Li You-ze and Qiu Guo-xiong   

Abstract: It was found that wheat leaves sprayed with aureomycin solution showed a higher rate of photosynthesis by 10%–31%. The chloroplasts isolated from aureomycin treated leaves also sustained a higher photophosphorylation activity in both cyclic and noncyclic reaction systems. In non-cyclic system, the enhancement of photophosphorylation is more than that of electron transfer thus resulting in a P/2e of 1.5, significanthy higher than that of ordinary chloroplast preparation which is considered as a unit. The relationship between the increase of P/2e ratio of the isolated chloroplasts and the promotion of photosynthetic rate by aureomycin was discussed.

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