Results 71 to 80 of about 20,345 (253)

Comparative Analysis of Lycorine in Wild Plant and Callus Culture Samples of Hymenocallis littoralis by HPLC-UV Method [PDF]

, 2014
The Hymenocallis littoralis, an ornamental and medicinal plant, had been traditionally used for wound healing. In the present study, an analytical method using HPLC with ultraviolet detection was developed for the quantification of lycorine in the ...
Murugaiyah, Vikneswaran, Sahgal, Geethaa, Subramaniam, Sreeramanan, Sundarasekar, Jeevandran   +3 more
core   +4 more sources

Photoprotective and Therapeutic Potential in Skin Cancer of Amaryllidaceae Alkaloids

Proceedings, 2019
Skin cancer has evolved as the most common malignant disease, accounting for 4.5% of all new cancer cases. [...]
Carol Castañeda, Karent Bravo, Natalie Cortés, Warley de S. Borges, Jaume Bastida, Edison Osorio   +5 more
doaj   +1 more source

Molecular Identification of Endophytic Bacteria in Leucojum aestivum In Vitro Culture, NMR-Based Metabolomics Study and LC-MS Analysis Leading to Potential Amaryllidaceae Alkaloid Production

International Journal of Molecular Sciences, 2021
In this study, endophytic bacteria belonging to the Bacillus genus were isolated from in vitro bulblets of Leucojum aestivum and their ability to produce Amaryllidaceae alkaloids was studied.
R. Spina, S. Saliba, F. Dupire, A. Ptak, A. Hehn, S. Piutti, Sophie Poinsignon, S. Leclerc, S. Bouguet-Bonnet, D. Laurain-Mattar   +9 more
semanticscholar   +1 more source

New circumscription of the tribe Leucocoryneae (Amaryllidaceae, Allioideae) [PDF]

, 2014
Sobre la base de estudios morfológicos, anatómicos y filogenéticos de la subfamilia Allioideae, se presenta una nueva circunscripción de la tribu Leucocoryneae que comprende seis géneros americanos:Beauverdia, Ipheion, Leucocoryne, Nothoscordum ...
Arroyo Leuenberger, Silvia C., Giussani, Liliana Mónica, Sassone, Agostina Belén   +2 more
core   +1 more source

Characterization of cinnamate 4-hydroxylase (CYP73A) and p-coumaroyl 3'-hydroxylase (CYP98A) from Leucojum aestivum, a source of Amaryllidaceae alkaloids.

Plant physiology and biochemistry : PPB
Biosynthesis of Amaryllidaceae alkaloids (AA) starts with the condensation of tyramine with 3,4-dihydroxybenzaldehyde. The latter derives from the phenylpropanoid pathway that involves modifications of trans-cinnamic acid, p-coumaric acid, caffeic acid ...
Vahid Karimzadegan, Manoj Koirala, Sajjad Sobhanverdi, Natacha Mérindol, B. Majhi, Sarah-Eve Gélinas, Vitaliy I. Timokhin, John Ralph, Mehran Dastmalchi, I. Desgagné-Penix   +9 more
semanticscholar   +1 more source

Comparative study of the vibrational optical activity techniques in structure elucidation : the case of galantamine [PDF]

, 2019
The absolute configuration of the alkaloid galantamine was studied using a range of solution-state techniques; nuclear magnetic resonance (NMR), vibrational circular dichroism (VCD), and Raman optical activity (ROA). While the combined use of NMR and VCD
Bultinck, Patrick, De Gussem, Ewoud, Herrebout, Wouter A., Johannessen, Christian, Tehrani, Kourosch Abbaspour   +4 more
core   +2 more sources

Narcissus dubius, Narcisse Douteux [PDF]

, 2018
This species is endemic to southern France and eastern Spain. It is assessed as Least Concern because it has a widespread distribution, occurs in several protected areas throughout its range and its population is not expected to significantly decline in ...
Carapeto, André, Fraga i Arquimbau, Pere, García Murillo, Pablo, Pinto-Cruz, Carla, Ríos Ruiz, Sara, Vela, Erol   +5 more
core   +1 more source

Amaryllidaceae Alkaloids Screen Unveils Potent Anticoronaviral Compounds and Associated Structural Determinants.

ACS Pharmacology & Translational Science
Betacoronaviruses encompass a spectrum of respiratory diseases, from common cold caused by the human coronavirus (HCoV)-OC43 to life-threatening severe acute respiratory syndrome (SARS)-CoV-2.
Natacha Mérindol, Luan Letieri Belem Martins, Ghada Elfayres, Alexandre Custeau, Lionel Berthoux, A. Evidente, I. Desgagné-Penix   +6 more
semanticscholar   +1 more source

Neuroprotective Activities of Crossyne flava Bulbs and Amaryllidaceae Alkaloids: Implications for Parkinson’s Disease

Molecules, 2021
Parkinson’s disease (PD) is one of the most common neurodegenerative diseases and affects approximately 6.3 million people worldwide. To date, the treatment of PD remains a challenge, as available treatment options are known to be associated with serious
S. Omoruyi, Abobaker S. Ibrakaw, O. Ekpo, J. Boatwright, C. Cupido, A. Hussein   +5 more
semanticscholar   +1 more source

Leveraging machine learning and citizen science data to describe flowering phenology across South Africa

PLANTS, PEOPLE, PLANET, EarlyView.
Recent shifts in flowering times are an index of, and a response to, human driven climate change. However, most information on these flowering changes is heavily skewed to the northern hemisphere. This imbalance limits our understanding of how climate change is affecting ecosystems, including the mismatches of flowering times between species, increased
Ross D. Stewart, Nicholas W. Bard, Michelle van der Bank, T. Jonathan Davies   +3 more
wiley   +1 more source