| Autor: |
Tatarintsev, N. P., Zakharchenko, N. S., Shmarev, A. N., Kreslavsky, V. D., Demin, D. V., Semenova, G. A., Glinushkin, A. P. |
| Zdroj: |
Russian Agricultural Sciences; Dec2022 Suppl 1, Vol. 48 Issue 1, pS69-S73, 5p |
| Abstrakt: |
The paper reports the study of the effects of N,N1-diphenylurea (DPU), which has cytokinin activity, on photosynthesis, photophosphorylation rate, and chloroplast structure in mesophyll cells in rapeseed plants in the flowering phase. DFM treatment affected photosystem 2 (PS-2) and changed the ratio between the rates of cyclic (CP) and noncyclic photophosphorylation (NCP) in thylakoid membranes isolated from flag leafs. CP rate in the chloroplasts increased by 25–30% 24 h after the treatment of plants with DFU, whereas NCP rate did not change. The new ratio between CP and NCP rates was maintained for several days. Treatment of plants with DFM led to an increase in the maximum quantum yield of PS-2 (Fv : Fm). The obtained results indicated that treatment of rapeseed plants with DFM changed carbohydrate metabolism in chloroplasts, increasing starch grain content in the leaves and fat content in the final product seeds by 20%. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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