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Liquid Culture Systems for in vitro Plant Propagation

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Comparison of secondary plant metabolite production 531<br />

Table 1: Multiplication rates (<strong>in</strong>crease of biomass) of four plant species produc<strong>in</strong>g secondary<br />

metabolites <strong>in</strong> different tissue culture systems with<strong>in</strong> a period of 4 weeks<br />

Shoots from<br />

microconta<strong>in</strong>ers<br />

Lavandula Hypericum Cymbopogon Fabiana<br />

2.8 3.5 9.0 3.2<br />

Shoots from TIS 16.5 7.7 18.0 5.0<br />

Callus culture 8.6 5.0 3.1 8.1<br />

Table 2: Contents of bioactive compounds <strong>for</strong> <strong>in</strong> <strong>vitro</strong> cultures of four plant species <strong>in</strong><br />

comparison to plants grown <strong>in</strong> the field (concentrations are given <strong>in</strong> mg g -1 dry weight)<br />

Species Lavandula Hypericum Cymbopogon Fabiana<br />

Compound rosmar<strong>in</strong>ic acid hyperic<strong>in</strong> �-citral �-citral oleanolic acid<br />

Shoots from<br />

microconta<strong>in</strong>ers<br />

55.3 0.15 0.27 0.46 0.01<br />

Shoots from TIS 5.7 0.18 0.35 0.54 0.01<br />

Callus culture 108 0.00 0.00 0.00 0.005<br />

Suspension culture 50 0.00 0.00 0.00 0.004<br />

Bioreactor culture 60 0.00<br />

Field plant 4.8 0.52 3.95 10.25 0.28<br />

Table 3: Concentration of bioactive compounds <strong>in</strong> plant material of Lavandula and<br />

Hypericum from TIS vessels. Material was fractionated accord<strong>in</strong>g to the colour of the<br />

material: Depend<strong>in</strong>g on the position of the material with<strong>in</strong> the vessel, the biomass was green<br />

(top and side layers), yellow (<strong>in</strong>ner part of the vessel) or brown (bottom layer)<br />

Colour of plant material<br />

fractions<br />

Content of rosmar<strong>in</strong>ic acid <strong>in</strong><br />

Lavandula<br />

(mg g -1 dry weight)<br />

green (top layer) 7.5<br />

green (side layer) 4.0<br />

Content of hyperic<strong>in</strong> <strong>in</strong><br />

Hypericum<br />

(mg g -1 dry weight)<br />

0.12<br />

yellow 1.9 0.11<br />

brown 0.0 0.23

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