Results 81 to 90 of about 3,655 (203)

Bioactivities of Psychotria sp. ethanol extract from Gia Lai, Vietnam: Antioxidant, antibacterial, anti-inflammatory, and wound-healing activities

open access: yesTạp chí Khoa học Đại học Huế: Khoa học Tự nhiên
A newly discovered species of the genus Psychotria, recently identified in Vietnam, is a traditional medicinal herb widely used in the country. However, the biological activity of this species has not been specifically investigated.
Thi Hien Thao Van   +4 more
doaj   +1 more source

Psychotria marginata Sw.

open access: yes, 2017
Published as part of MONRO, A. K., SANTAMARÍA-AGUILAR, D., GONZÁLEZ, F., CHACÓN, O., SOLANO, D., RODRÍGUEZ, A., ZAMORA, N., FEDELE, E. & CORREA, M., 2017, A first checklist to the vascular plants of La Amistad International Park (PILA), Costa Rica-Panama, pp.
MONRO, A. K.   +8 more
openaire   +2 more sources

Cosmovision as Cognitive Technology: The Case of Mesoamerican Medicinal Knowledge

open access: yesTopics in Cognitive Science, Volume 18, Issue 1, Page 92-110, January 2026.
Abstract We examine the use of cognitive technologies in the acquisition and retention of botanical and medicinal knowledge. We focus on the Cruz‐Badianus codex, a 16th‐century Nahua (Aztec) herbarium which discusses the use of plants for a range of illnesses.
Johan De Smedt, Helen De Cruz
wiley   +1 more source

Psychotria avenis Pancher ex Beauvis.

open access: yes, 2013
Psychotria avenis Pancher ex Beauvis. Annales de la Société Botanique de Lyon 26: 53 (1901), nom. nud., mss. in herb. Psychotria semperflorens (Pancher ex Beauvis.) Guillaumin.Published as part of Barrabé, Laure, Mouly, Arnaud & Florence, Jacques ...
Barrabé, Laure   +2 more
core   +1 more source

Biologia reprodutiva de Psychotria poeppigiana Mull. Arg. (Rubiaceae) em mata de galeria Reproductive biology of Psychotria poeppigiana Mull. Arg. (Rubiaceae) in gallery forest

open access: yesActa Botânica Brasílica, 2004
Psychotria L. (Rubiaceae) é o gênero com mais espécies heterostílicas dentre as Angiospermas. O objetivo deste trabalho é descrever a biologia floral, fenologia, o sistema reprodutivo e os polinizadores de Psychotria poeppigiana Müll. Arg.
Christiano Peres Coelho   +1 more
doaj   +1 more source

Leaf nodule endosymbiotic Burkholderia confer targeted allelopathy to their Psychotria hosts

open access: yesScientific Reports, 2021
After a century of investigations, the function of the obligate betaproteobacterial endosymbionts accommodated in leaf nodules of tropical Rubiaceae remained enigmatic. We report that the α-d-glucose analogue (+)-streptol, systemically supplied by mature
Antri Georgiou   +7 more
doaj   +1 more source

Psychotria parvifolia Benth.

open access: yes, 2017
Psychotria parvifolia Benth. Cafecillo (CR). Terrestrial shrubs. Distribution in PILA 1000–2200 m, mixed forest in transition to low elevation forest, mixed forest in transition to cloud forest, cloud forest, low elevation oak forest. Global distribution: Guatemala, Costa Rica, Panama. Records: A.K. Monro 5039 (BM, INB, MO), G. Davidse 23786 (CR,
MONRO, A. K.   +8 more
openaire   +2 more sources

Resilience and Brain Changes in Long‐Term Ayahuasca Users: Insights From Psychometric and fMRI Pattern Recognition

open access: yesJournal of Magnetic Resonance Imaging, Volume 62, Issue 6, Page 1782-1790, December 2025.
ABSTRACT Background Ayahuasca is an Amazonian psychedelic brew that contains dimethyltryptamine (DMT) and beta carbolines. Prolonged use has shown changes in cognitive‐behavioral tasks, and in humans, there is evidence of changes in cortical thickness and an increase in neuroplasticity factors that could lead to modifications in functional neural ...
Lucas Rego Ramos   +2 more
wiley   +1 more source

Biologia da polinização e sistema reprodutivo de Psychotria barbiflora DC. (Rubiaceae) Pollination biology and breeding system of Psychotria barbiflora DC. (Rubiaceae)

open access: yesActa Botânica Brasílica, 2004
O estudo foi realizado no período de abril/1999 a setembro/2000, no Parque Estadual Dois Irmãos, Recife (PE) Brasil, um remanescente de floresta Atlântica.
Luciana Almeida Gomes Teixeira   +1 more
doaj   +1 more source

Nuevos resultados de la revisión taxonómica de los géneros Palicourea y Psychotria (Rubiaceae, Psychotrieae) en Cuba [PDF]

open access: yes, 2016
The authors carried out a taxonomic study and revised and identified about 7,000 herbarium sheets of the genera Palicourea and Psychotria preserved in the collections of the Academy of Sciences of Cuba (HAC) and of the National Botanical Garden of Cuba ...
M. Fernández-Zequeira   +5 more
core   +1 more source

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