Enhanced silymarin accumulation is related to calcium deprivation in cell suspension cultures of Silybum marianum (L.) Gaertn

Elimination of calcium ions from the medium of cell cultures of Silybum marianum (L.) Gaertn increased flavonolignan production. Silymarin accumulation was not altered by treatment of cultures with the calcium ionophore A23187. The specific Ca2+ chelator, EGTA, enhanced the silymarin content in cell...

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Veröffentlicht in:Journal of plant physiology. - 1979. - 162(2005), 10 vom: 11. Okt., Seite 1177-82
1. Verfasser: Angeles Sánchez-Sampedro, María (VerfasserIn)
Weitere Verfasser: Fernández-Tárrago, Jorge, Corchete, Purificación
Format: Aufsatz
Sprache:English
Veröffentlicht: 2005
Zugriff auf das übergeordnete Werk:Journal of plant physiology
Schlagworte:Journal Article Research Support, Non-U.S. Gov't Lignans Silymarin Ruthenium Red 11103-72-3 Calcimycin 37H9VM9WZL 8-(N,N-diethylamino)octyl-3,4,5-trimethoxybenzoate 57818-92-5 mehr... Gallic Acid 632XD903SP Thapsigargin 67526-95-8 Calcium SY7Q814VUP
Beschreibung
Zusammenfassung:Elimination of calcium ions from the medium of cell cultures of Silybum marianum (L.) Gaertn increased flavonolignan production. Silymarin accumulation was not altered by treatment of cultures with the calcium ionophore A23187. The specific Ca2+ chelator, EGTA, enhanced the silymarin content in cells by 200%, and its secretion by 3-4 times. The inorganic ion La3+, as well as the calcium channel inhibitor verapamil, also stimulated production. Several reagents known to block intracellular calcium movement, such as ruthenium red, thapsigargin and TMB-8 appreciably increased silymarin accumulation. These results suggest that inhibition of external and internal calcium fluxes plays a significant role in flavonolignan metabolism of S. marianum cell cultures
Beschreibung:Date Completed 23.01.2006
Date Revised 13.12.2023
published: Print
Citation Status MEDLINE
ISSN:1618-1328