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- Title
The linkage between phenylethanoid glycosides biosynthetic pathway and some aromatic amino acids and carbohydrates (rhamnose and glucose) in Scrophularia striata Boiss. cell culture.
- Authors
Ahmadi-Sakha, Sedigheh; Sharifi, Mohsen; Niknam, Vahid
- Abstract
In the present study, variations in levels of amino acids and carbohydrates in Scrophularia striata Boiss. were investigated at different growth phases in two in-vitro culture systems; namely shake flask and bioreactor by high-performance liquid chromatography (HPLC). The maximum contents of phenylalanine, tyrosine,and rhamnose were determined at 25th day of cell culture in shake flask and 10th day of cell culture in bioreactor while, the maximum content of glucose was observed at 15th day in shake flask and at 25th day in bioreactor. It seems that phenylalanine and tyrosine as precursors of phenylethanoid glycosides were directly related to biosynthetic pathway of phenylethanoid glycosides (PeGs) and also rhamnose and glucose content. In summary, analysis of primary metabolites in two culture systems showed that metabolism and cost of energy of amino acids and carbohydrates during cell culture of S. striata play a critical role in production of PeG compounds. Obtaining high levels of sucrose in S. striata cell culture in bioreactor reflected higher energy demands. It seems that the bioreactor shows higher rates of the produced amino acids as precursors for glycolysis and tricarboxylic cycles. Moreover, metabolism rate of amino acids was increased to supply enough energy and C-skeletons for biosynthesis of N-containing metabolites as well as secondary metabolites. In this study, potential capacity of S. striata cells for synthesis of amino acids and carbohydrates was also compared in both shake flask and bioreactor systems. Key message: Amino acids and carbohydrates metabolism and cost of energy during cell culture of S. striata play a critical role in production of PeGs compounds such as acteoside and echinacoside. Amino acids metabolism to supply enough energy and C-skeletons for the biosynthesis of N-containing metabolites as well as secondary metabolites has been increased. Too, the bioreactor may supply enough energy and C-skeletons for the biosynthesis of N-containing metabolites
- Subjects
CELL culture; CARBOHYDRATES; AMINO acids; GLYCOSIDES; AMINO acid metabolism
- Publication
Plant Cell, Tissue & Organ Culture, 2021, Vol 147, Issue 1, p131
- ISSN
0167-6857
- Publication type
Article
- DOI
10.1007/s11240-021-02113-3