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Badano wpływ jasmonianu metylu (JA-Me) i inhibitorów biosyntezy jasmonianów, ibuprofenu i galusanu propylu, na akumulację chlorofilu i antocyjanów w pędach Clematis pitcheri rosnących w warunkach in vitro na pożywce MS. Doświadczenia prowadzono w 20°C i 25°C. Do pożywki dodawano JA-Me w stężeniu 1 µМ, ibuprofen 1 µM i 10 µМ, galusan propylu 100 µM lub ich mieszaniny. Pędy rosnące w temperaturze 20°C...
The aim of the present work was to determine the carbohydrate content in plantlets of Clematis pitcheri cultured in vitro depending on the temperature (15°C, 20°C and 25°C) and sucrose (10 and 30 g·dm⁻³) and nitrogen (100% and 50% of normal MS strength) level in the medium. 100% N meant 1.90 g KNO₃ and 1.65 g NH₄NO₃, and 50% N meant 0.950 g KNO₃ and 0.825 g NH₄NO₃ in 1 dm⁻³ of MS medium. The highest...
In Crassula multicava Lam. anthocyanins are formed naturally mostly in the stem near nodes and only traces in other parts of internodes. Methyl jasmonate (JA-Me) applied in lanolin paste at concentrations of 0.05, 0.1, 0.5 and 1.0% on the middle part of internodes greatly stimulated anthocyanins accumulation in the internodes and in the nodes of Crassula multicava. The stimulatory effect was higher...
It has been well known that some fungal pathogens (Monilia laxa, M. fructigena, Cytospora cincta), larvae of Grapholita molesta and plant hormone - ethylene, induce gummosis in apricot shoots. Methyl jasmonate (JA-Me) was also found to induce gummosis in apricot shoots as well as biotic and abiotic factors mentioned above. In order to know the mode of action of JA-Me on gum induction and/or formation,...
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