Abstract
The effect of jasmonic acid (JA), in a wide range of concentrations (0.01–100 μM), on the development of potato plantlets (Solanum tuberosum L.cv. Vesna) was investigated in order to discriminate between physiological and supraoptimal effects of this growth regulator in vitro. Concentrations from 0.1–1 μM significantly increased the length of developed plants. Application of JA in these concentrations resulted in a very well differentiated root system with many lateral branches. With increasing JA concentrations, the main roots shortened and thickened. Concentrations higher than 10 μM led to the compaction of the stem, roots, and root hairs, giving a stunted appearance to the plants. The effect of JA on cell wall regeneration and callus formation was observed in potato leaf protoplast culture. JA at concentrations from 0.01–1 μM stimulated cell division and microcalli development.
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Ravnikar, M., Vilhar, B. & Gogala, N. Stimulatory effects of jasmonic acid on potato stem node and protoplast culture. J Plant Growth Regul 11, 29–33 (1992). https://doi.org/10.1007/BF00193840
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DOI: https://doi.org/10.1007/BF00193840