Author(s): Ronzhina ES
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Abstract The level of endogenous cytokinins changed with growth and development of faba bean (Vicia faba L.) leaves. Typical of juvenile leaves, amounting to 25\% of the final leaf size (Smax) was a low content of these plant hormones. The level of cytokinins increased in growing leaves (50\% of Smax) and decreased in the leaves that stopped growing. The content of cytokinins in senescent leaves dropped considerably. Exogenous treatment with 6-benzylaminopurine (BAP) had no effect on the structure of terminal phloem; however, it stimulated elongation of mesophyll cells; increases in the area and thickness of leaf blade, amount of photosynthetic pigments, and assimilation potential; and delayed senescence of leaves and defoliation, thereby increasing biomass of the aboveground plant part. It was inferred that BAP had a potential for induction of photosynthetic apparatus development and increase in the yield of faba bean green mass.
This article was published in Prikl Biokhim Mikrobiol
and referenced in Biochemistry & Physiology: Open Access