Characterization of lucidin formation in Rubia tinctorum L.

Stimulation of the proline cycle and anthraquinone accumulation in Rubia tinctorum cell suspension cultures in the presence of glutamate and two proline analogs

“…These compounds have been traditionally used in the textile industry because of their dyeing properties (Koblitz 1988) and also as therapeutic agents for the treatment of kidney and bladder stones (Derksen and van Beek 2002;Nakanishi et al 2005;Wijnsma and Verpoorte 1986). Moreover, they have been described to exhibit interesting in vitro biological properties, including antifungal, antimicrobial, anticancer, and antioxidant activities (Borroto et al 2008;He et al 2009).…”

Expression and Biochemical Characterization of β-Primeverosidase and Application of β-Primeverosylamidine to Affinity Purification

“…Family 1 -glucosidases are implicated in the hydrolysis of variousglucosides to release physiologically active aglycones. 3) In some cases, -glucosides are further modified at the C-6 position of the hydroxy group of the glucose by a O-glycosidic bond with various monosaccharides, such as glucose, xylose, arabinose, apiose, and rhamnose, resulting in the synthesis of disaccharide glycosides such as -primeverosides (6-O--D-xylopyranosyl--D-glucopyranosides), 4,5) -gentiobiosides (6-O--D-glucopyranosyl--D-glucopyranosides), 6) -vicianoside (6-O--Larabinopyranosyl--D-glucopyranoside), 7,8) -acuminoside (6-O--D-apiofuranosyl--D-glucopyranoside), 9) and -rutinoside (6-O--L-rhamnopyranosyl--D-glucopyranoside) 10) respectively. These disaccharide glycosides are usually resistant to hydrolysis by -glucosidases (monoglucosidase), and thus, some plants contain diglycosidases specific to disaccharide-glycosides.…”

Elicitor-Induced Cellular and Molecular Events Are Responsible for Productivity Enhancement in Hairy Root Cultures: An Insight Study

“…Apart from their involvement in transcriptional gene regulation, the JA and allied compounds also act as transducers of elicitor signals for the production and/or promotion and accumulation of various groups of SMs including alkaloids [44,45], Coumarines and furocoumarines [46], antraquinones and saponins [47], etc. in HRs and cell suspension systems.…”

“…The exposure of Brugmansia candida and Ambrosia maritima HR cultures to jasmonic acid promoted hyoscyamine and polyacetylenes production respectively [44,48]. The exogenous supply of JA and its volatile methyl ester MeJA sets off various morphological and physiological changes by inducing gene expression escorting to the synthesis of different proteins mainly associated with plant defense responses as well as elevated SM accumulation in R. tinctorum HR cultures [47,49]. Many elicitors stimulate endogenous JA biosynthesis mediated through octadecanoid pathway in plants which provide the evidence that JA signaling pathway can be regarded as a transducer or mediator for elicitor signaling ( [50,51] and references within).…”