Results 81 to 90 of about 1,727 (188)

Binary Stress Induces an Increase in Indole Alkaloid Biosynthesis in Catharanthus roseus

open access: yesFrontiers in Plant Science, 2015
Catharanthus roseus is an important medicinal plant, which produces a variety of indole alkaloids of significant pharmaceutical relevance. In the present study, we aimed to investigate the potential stress-induced increase of indole alkaloid biosynthesis
Wei eZhu   +5 more
doaj   +1 more source

Cytological changes in meristematic cells of Allium cepa L. root tip treated with extracts from callus of Catharanthus roseus (L.) G. Don

open access: yesActa Societatis Botanicorum Poloniae, 2014
The effect of an ethanolic extract from callus of Catharanthus roseus on Allium cepa root cells divisions was investigated. Two lines: white and green callus, were established on solid B5 medium with IAA 1 mg/l and kinetin 0.1 mg/l.
Agnieszka Pietrosiuk   +4 more
doaj   +1 more source

Synthesis and Anticancer Effect of a Vindoline-Based Bis-Alkylated Resorcinol Derivative

open access: yesPeriodica Polytechnica: Chemical Engineering
Alkylation of the simple polyphenol model resorcinol with 10-chloroacetamidovindoline resulted in the corresponding O,O-disubstituted derivative containing two elements of the Vinca alkaloid.
Mónika Halmai   +4 more
semanticscholar   +1 more source

A Novel AP2/ERF Transcription Factor CR1 Regulates the Accumulation of Vindoline and Serpentine in Catharanthus roseus

open access: yesFrontiers in Plant Science, 2017
As one type of the most important alkaloids in the world, terpenoid indole alkaloids (TIAs) show a wide range of pharmaceutical activities that are beneficial for clinical treatments.
Jiaqi Liu   +5 more
doaj   +1 more source

A Simplified Procedure for Indole Alkaloid Extraction from Catharanthus roseus Combined with a Semi-synthetic Production Process for Vinblastine

open access: yesMolecules, 2007
Dried leaves of Catharanthus roseus were extracted with aqueous acidic 0.1 M solution of HCl. Alkaloid-embonate complexes were obtained as precipitates by treating the extract with an alkaline (NaOH) solution of embonic acid (4,4-methylene-bis-3 ...
Marja-Liisa Riekkola   +4 more
doaj   +1 more source

Antidiabetic and Antioxidant Properties of Alkaloids from Catharanthus roseus (L.) G. Don

open access: yesMolecules, 2013
Catharanthus roseus (L.) G. Don is a herbal plant traditionally used by local populations in India, South Africa, China and Malaysia to treat diabetes. The present study reports the in vitro antioxidant and antidiabetic activities of the major alkaloids ...
Won Fen Wong   +8 more
doaj   +1 more source

Radiolytically degraded sodium alginate enhances plant growth, physiological activities and alkaloids production in Catharanthus roseus L.

open access: yesJournal of Radiation Research and Applied Sciences, 2015
Catharanthus roseus (L.) G. Don (Family Apocynaceae) is a medicinal plant that produces indole alkaloids used in cancer chemotherapy. The anticancerous alkaloids, viz. vinblastine and vincristine, are mainly present in the leaves of C. roseus.
M. Naeem   +7 more
doaj   +1 more source

Attempted Diels-Alder Reactions on Vindoline Derivatives

open access: yesPeriodica Polytechnica Chemical Engineering, 2017
The Diels-Alder reaction of vindoline and methyl vinyl ketone resulted in a Friedel-Crafts reaction product. In the reaction between the ortho-quinone derivative of vindoline and N-phenylmaleimide, two anomalous products were obtained, a vindoline dimer, and a condensed vindoline derivative.
Szabolcs Mayer   +6 more
openaire   +2 more sources

Fungal endophytes of Catharanthus roseus enhance vindoline content by modulating structural and regulatory genes related to terpenoid indole alkaloid biosynthesis

open access: yesScientific Reports, 2016
Not much is known about the mechanism of endophyte-mediated induction of secondary metabolite production in Catharanthus roseus. In the present study two fungal endophytes, Curvularia sp. CATDLF5 and Choanephora infundibulifera CATDLF6 were isolated from
S. Pandey   +6 more
semanticscholar   +1 more source

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