Relationship between growth of parsley and soybean cells in suspension cultures and changes in the conductivity of the culture medium
β Scribed by K. Hahlbrock; E. Kuhlen
- Publisher
- Springer-Verlag
- Year
- 1972
- Tongue
- English
- Weight
- 345 KB
- Volume
- 108
- Category
- Article
- ISSN
- 0032-0935
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β¦ Synopsis
Changes in conductivity and pH during the growth cycle of cell suspensions derived from parsley (Petroselinum hortense) and soybean (Glycine max) have been investigated. Measurement of the conductivity of the medium represents a simple, rapid, and reliable method for the precise determination of the growth phase of a culture. The accuracy of this method has been tested by using phenylalanine ammonia-lyase, an enzyme that has a characteristically short, distinct period of activity during the growth cycle of soybean cell suspensions. It is suggested that an automatic regulation of the conductivity of the medium might be employed for growing plant cells in a continuous culture at a defined stage of growth.
π SIMILAR VOLUMES
The changes in packed cell volume and in nitrate content and conductivity of the medium during the growth cycle of cell suspension cultures from Petroselinum hortense Hoffm., Glycine max Merr., and Haplopappus gracilis A. Grey in a chemically defined medium were compared. In all three cases sigmoida
An intercept in the linear relationship between the biomass increase and decrease in medium conductivity was found in suspension cultures of rice cells. It was due to the consumption of medium salts by the cells during the lag phase. An equation was established for accurate monitoring of the cell gr
Conductivity changes in the medium of cultured soybean (Glycine max L.) cells were shown to be strictly correlated with nitrate uptake and growth of the cultures. A continuous record of the conductivity was used as a simple and reliable method of determining specific growth stages and concomitant pe
Figure 3. AOC of blood plasma after administration of flavonoid extract from illuminated parsley cell culture to man. The shaded area represents the standard deviation of the control values.