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Mathematical models based on structure–activity relationships and perturbed molecular orbital theory have been developed to calculate the ionization pK a s for a large number of organic molecules. These models include resonance, direct and indirect electrostatic field effects, sigma induction, steric effects, differential solvation and hydrogen bonding. The thermodynamic microscopic ionization...
Production of Solanum nigrum and S. nigrum var. judaicum plants with a high power of alkaloid accumulation was the aim of in vitro regeneration trials followed by in vivo plant acclimatization. MS-basal medium containing BA and NAA (0.5 mg/ml each) was the best for both plants. A series of in vitro and in vivo plants were successfully produced and chemical analysis revealed contents of glycoalkaloids...
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