Content of phenolic acids in callus culture of alfalfa (Medicago sativa): The effect of age and biochemical differentiation |
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Authors: | Marie HrubcovÁ Milena CvikrovÁ F Pospíšil L Meravý J Eder |
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Institution: | (1) Institute of Experimental Botany, Czechoslovak Academy of Sciences, Na Karlovce 1, 160 00 Praha 6, Czechoslovakia |
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Abstract: | Phenolic acids were separated into three fractions and determined by HPLC inMedicago sativa callus culture at the age of two, three and four weeks. The contents of free and especially of predominating ester-bound
phenolic acids decreased with callus age to approx. 80 % while the content of phenolic acids nonextractable by methanol increased
byca. 90 %. The proportion of benzoic acid derivatives rose from 15 to 21 % within four weeks. The determined difference in the
contents of phenolic acids in the upper and lower parts of callus diminished with age. The content of bound forms was higher
in the lower part regardless of the callus age. The content of free acids in two weeks old callus was half as high as in the
upper part. |
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