Stimulation of chalcone synthase activity by yeast extract in cultured Glycyrrhiza echinata cells and 5-deoxyflavanone formation by isolated protoplasts
- 1 January 1988
- journal article
- research article
- Published by Springer Nature in Plant Cell Reports
- Vol. 7 (1) , 35-38
- https://doi.org/10.1007/bf00272973
Abstract
Chalcone synthase activity catalyzing the formation of naringenin (5-hydroxyflavanone) was detected in cell suspension cultures of Glycyrrhiza echinata. This activity rapidly increased by treatment of the cells with yeast extract, while non-treated cells showed a constant low activity. Isolated G. echinata protoplasts accumulated retrochalcone (echinatin) and its biosynthetic intermediate (licodione) during 24 h of culture. When the protoplasts were incubated with [14C(U)]phenylalanine, liquiritigenin (5-deoxyflavanone) was transiently labeled, indicating the induction of 6'-deoxychalcone synthase. The formation of liquiritigenin, in addition to naringenin, was observed when the crude extracts from the protoplasts were assaved for CHS activity.Keywords
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