[HTML][HTML] The genus Psychotria: phytochemistry, chemotaxonomy, ethnopharmacology and biological properties

NO Calixto, MEF Pinto, SD Ramalho… - Journal of the Brazilian …, 2016 - SciELO Brasil
Psychotria genus (Rubiaceae) is featured into the angiosperm, being the most speciose
genus comprising approximately 1600 species. The available references demonstrate that …

Metabolic engineering of cell cultures versus whole plant complexity in production of bioactive monoterpene indole alkaloids: recent progress related to old dilemma

G Pasquali, DD Porto, AG Fett-Neto - Journal of Bioscience and …, 2006 - Elsevier
Monoterpene indole alkaloids (MIAs) are a large class of plant alkaloids with significant
pharmacological interest. The sustained production of MIAs at high yields is an important …

Evaluation of Antioxidant Activity, Total Flavonoids, Tannins and Phenolic Compounds in Psychotria Leaf Extracts

ASN Formagio, CRF Volobuff, M Santiago… - Antioxidants, 2014 - mdpi.com
The antioxidant activity of Psychotria carthagenensis, P. leiocarpa, P. capillacea and P.
deflexa (Rubiaceae) extracts were investigated, and the concentrations of total phenolics …

Indole alkaloids of Psychotria as multifunctional cholinesterases and monoamine oxidases inhibitors

CS Passos, CA Simões-Pires, A Nurisso, TC Soldi… - Phytochemistry, 2013 - Elsevier
Thirteen Psychotria alkaloids were evaluated regarding their interactions with
acetylcholinesterase (AChE), butyrylcholinesterase (BChE), and monoamine oxidases A …

Taxonomic significance of alkaloids and iridoid glucosides in the tribe Psychotrieae (Rubiaceae)

S Lopes, GL von Poser, VA Kerber, FM Farias… - Biochemical Systematics …, 2004 - Elsevier
Leaves of 15 Brazilian species of Psychotria, three of Rudgea and Palicourea rigida, were
analyzed for their alkaloid and iridoid content. Alkaloids were found in three of Rudgea and …

Review on in-vitro anti-malarial activity of natural β-carboline alkaloids

P Ashok, S Ganguly… - Mini Reviews in Medicinal …, 2013 - ingentaconnect.com
Malaria is one of the major health problems in developing countries. It kills 1-2 million
people every year and also it affects financial status of many countries. Developed …

[HTML][HTML] Comparative leaf anatomy and micromorphology of Psychotria species (Rubiaceae) from the Atlantic Rainforest

TMS Moraes, GR Rabelo, CR Alexandrino… - Acta Botanica …, 2011 - SciELO Brasil
The genus Psychotria comprises approximately 2,000 species that are mostly shrubs
distributed in forests of the tropics and subtropics. Within the Rubiaceae, Psychotria is well …

Targeted Isolation of Monoterpene Indole Alkaloids from Palicourea sessilis

LC Klein-Júnior, S Cretton, PM Allard… - Journal of natural …, 2017 - ACS Publications
Phytochemical investigation of the alkaloid extract of Palicourea sessilis by LC-HRMS/MS
using molecular networking and an in silico MS/MS fragmentation approach suggested the …

N, β-D-Glucopyranosyl vincosamide, a light regulated indole alkaloid from the shoots of Psychotria leiocarpa

AT Henriques, SO Lopes, JT Paranhos, TS Gregianini… - Phytochemistry, 2004 - Elsevier
From leaves of Psychotria leiocarpa, an indole alkaloid was isolated to which the structure
N, β-d-glucopyranosyl vincosamide (1) was assigned. This represents the first report of an N …

A revised classification of the sister tribes Palicoureeae and Psychotrieae (Rubiaceae) indicates genus-specific alkaloid accumulation

A Berger, K Valant-Vetschera, J Schinnerl… - Phytochemistry …, 2022 - Springer
Abstract Tribes Palicoureeae and Psychotrieae (Rubiaceae, Gentianales) are complex and
speciose sister groups with a pantropical distribution. Since the initial studies on …