Results 41 to 50 of about 6,749 (214)

Eliciting Effect of Catharanthine on the Biosynthesis of Vallesiachotamine and Isovallesiachotamine in Cambial Meristematic Cells

Natural Product Communications, 2018
Vallesiachotamine and isovallesiachotamine are pharmacologically active monoterpene indole alkaloids produced by Catharanthus roseus . However, the biosynthetic pathway for these two alkaloids has not been characterized.
Jianhua Zhu, Shuijie He, Pengfei Zhou, Jiachen Zi, Jincai Liang, Liyan Song, Rongmin Yu   +6 more
doaj   +1 more source

Crystal structure of akuammicine, an indole alkaloid fromCatharanthus roseus [PDF]

Acta Crystallographica Section E Crystallographic Communications, 2017
The title compound, C20H22N2O2, an alkaloid isolated from the Madagascar periwinkle, crystallizes inP1 with two independent but closely similar molecules in the unit cell. The molecules are linked into pairs by two N—H...O=C hydrogen bonds. The absolute configuration was confirmed by anomalous dispersion effects asSat the 3 and 15 positions, andRat the
Yahyazadeh, Mahdi, Jerz, Gerold, Selmar, Dirk, Winterhalter, Peter, Jones, Peter G.   +4 more
openaire   +4 more sources

Boosting of Antioxidants and Alkaloids in Catharanthus roseus Suspension Cultures Using Silver Nanoparticles with Expression of CrMPK3 and STR Genes

Plants, 2021
Global agricultural systems are under unprecedented pressures due to climate change. Advanced nano-engineering can help increase crop yields while ensuring sustainability. Nanotechnology improves agricultural productivity by boosting input efficiency and
Ahmed Fouad, Adel E. Hegazy, Ehab Azab, Ebtihal Khojah, Tarek Kapiel   +4 more
doaj   +1 more source

Comparative study of the hypoglycemic and biochemical effects of Catharanthus roseus (Linn) g. apocynaceae (Madagascar periwinkle) and chlorpropamide (diabenese) on alloxan-induced diabetic rats [PDF]

, 2005
The effect of the aqueous extracts of Catharanthus roseus and chlorpropamide (Diabenese) on the levels of serum cholesterol, total protein, lipid peroxidation, blood glucose and liver enzymes were compared in alloxan-induced diabetic rats.
Iweala, E. E. J., Okeke, C. U.
core   +1 more source

Discovery of a Plant Pictet–Spenglerase With R‐Stereoselectivity

Angewandte Chemie International Edition, EarlyView.
Strictosidine synthases (STRs) are plant Pictet–Spenglerases catalyzing the coupling of a secoiridoid with tryptamine. All previously characterized strictosidine synthases are strictly S‐selective. Here, we report the discovery of Epi‐STR, an R‐selective STR ortholog from the medicinal plant Pogonopus speciosus.
Clara Morweiser, Sarah Heinicke, Sarah E. O'Connor, Maite Colinas   +3 more
wiley   +1 more source

Involvement of the leaf-specific multidrug and toxic compound extrusion (MATE) transporter Nt-JAT2 in vacuolar sequestration of nicotine in Nicotiana tabacum [PDF]

, 2014
Alkaloids play a key role in higher plant defense against pathogens and herbivores. Following its biosynthesis in root tissues, nicotine, the major alkaloid of Nicotiana species, is translocated via xylem transport toward the accumulation sites, leaf ...
Goossens, Alain, Hayashida, Minaho, Ito, Shingo, Minami, Shota, Morita, Masahiko, Moriyama, Yoshinori, Moriyasu, Masataka, Omote, Hiroshi, Shitan, Nobukazu, Sugiyama, Akifumi, Takanashi, Kojiro, Yazaki, Kazufumi   +11 more
core   +4 more sources

Chitosan‐induced modulation of secondary metabolism and stress tolerance in Salvia rosmarinus under combined drought and heat stress

Journal of the Science of Food and Agriculture, EarlyView.
Abstract BACKGROUND Abiotic stresses, particularly drought and elevated temperatures, negatively affect plant physiological and metabolic processes. This study investigated the effects of drought, heat, and combined stress on Salvia rosmarinus (rosemary), and evaluated foliar‐applied chitosan as a biostimulant.
Inês Mansinhos, Sandra Gonçalves, Raquel Rodríguez‐Solana, Efrén Pérez‐Santín, María I Fernández‐Marín, Emma Cantos‐Villar, Anabela Romano   +6 more
wiley   +1 more source

Pharmacological significance of Catharanthus roseus in cancer management: A review

Pharmacological Research - Modern Chinese Medicine
Introduction: Catharanthus roseus, commonly known as Vinca Rosea or Madagascar periwinkle, is a significant plant species within the Apocynaceae family, known for its diverse medicinal properties and ornamental attributes, long embraced by Chinese ...
Siddharth Goswami, Amena Ali, Madhulika Esther Prasad, Pallavi Singh   +3 more
doaj   +1 more source

The Structure of Carboxyl Methyltransferase Provides Insights Into the Substrate Specificity and Divergent Evolution of Iridoid

Plant Biotechnology Journal, EarlyView.
ABSTRACT Iridoids constitute a prominent class of plant‐specialised metabolites, with carbocyclic iridoids (e.g., geniposide) and secoiridoids (e.g., loganin) diverging early in their biosynthetic pathways. This divergence is marked by substrate‐specific carboxyl methyltransferases—GjGAMT and CrLAMT—that catalyse the decisive methylation step in ...
Li Li, Zhiteng Luo, Zhaoyin He, Jie Tang, Wuke Wei, Ruoting Zhan, Huihao Zhou, Dongming Ma   +7 more
wiley   +1 more source

Ointment Formulation of Tapak Dara Flower (Catharanthus roseus (L.) G. Don) Ethanol Extract and its Activity in Burn-Healing

Borneo Journal of Pharmacy, 2023
Treatment done on burn wounds is intended to provide local therapy to heal as quickly as possible. The content of secondary metabolites in the Tapak Dara (Catharanthus roseus (L.) G.
Leny Leny, Tetty Noverita Khairani Situmorang, Rensus Siagian, Ihsanul Hafiz, Benni Iskandar   +4 more
doaj   +1 more source