Results 31 to 40 of about 4,156 (172)

C30 Évaluation in vivo de l’effet anti-inflammatoire des nanoparticules d'argent obtenues par biosynthèse in situ à partir des feuilles de Psychotria calceata

open access: yesJournal Africain de Technologie Pharmaceutique et Biopharmacie, 2023
Introduction : Les nanotechnologies sont de nos jours une science qui prend une grande importance en raison de leur simplicité, de leur nature écologique et économique.
Françis Ngolsou   +10 more
doaj   +1 more source

Ethnopharmacology of Psychotria: Potential Use of P. malayana Jack Leaves as Antidiabetic Agent

open access: yesJournal of Pharmacy
This review provides a comprehensive exploration of the Psychotria species, a genus of plants known for their medicinal properties and traditional uses.
Sharifah Nurul Akilah Syed Mohamad   +4 more
doaj   +1 more source

Fruit‐quality tradeoffs generate asymmetry in plant reliance on mutualistic frugivores

open access: yesOikos, Volume 2026, Issue 9, September 2026.
Seed dispersal is a fundamental ecological process influencing the evolution of plant life‐history strategies. In fleshy‐fruited plants dispersed by mutualistic frugivores, variation in fruit traits among closely related species may shape the temporal and spatial dynamics of dispersal events critical to population success.
João Vitor S. Messeder, Tomás A. Carlo
wiley   +1 more source

Morfoanatomia foliar da reófita facultativa Psychotria carthagenensis Jacq. (Rubiaceae) [PDF]

open access: yes, 2008
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro de Ciências Biológicas. Programa de Pos-Graduação em Biologia Vegetal.Psychotria carthagenensis Jacq.
Vitarelli, Narah Costa
core  

Compared Effects on Metrosideros laurifolia of Arbuscular Mycorrhizal Fungal Communities From Restored Laterite and Reference Ultramafic Soil

open access: yesEcological Research, Volume 41, Issue 5, September 2026.
In a greenhouse experiment using the endemic shrub Metrosideros laurifolia, we compared the functional effects of AMF community extracted from a disturbed soil restored 20 years ago with that extracted from a reference soil corresponding to a bordering dense shrubby maquis.
Hamid Amir   +3 more
wiley   +1 more source

Competition and habitat filtering shape Neotropical canopy butterfly communities across a rainfall seasonality gradient

open access: yesEcosphere, Volume 17, Issue 8, August 2026.
Abstract The stability hypothesis posits that stable environments provide species with predictable resources, where mechanisms that limit similarity, such as competition, are able to drive niche specialization and shape community composition. By contrast, variable and unpredictable environments are expected to allow only those species with appropriate ...
María F. Checa   +7 more
wiley   +1 more source

Psychotria asiatica Linnaeus 1759

open access: yes, 2007
Psychotria asiatica Linnaeus, Systema Naturae, ed. 10, 2: 929. 1759. ["Habitat in Jamaica & India Orientali."] Sp. Pl., ed. 2, 1: 245 (1762). RCN: 1362. Lectotype (Petit in Bull. Jard. Bot. État Bruxelles 34: 13. 1964): Herb. Linn. No. 231.1 (LINN).
Jarvis, Charlie
core   +1 more source

Tourism, human–wildlife interactions, and wildlife trade in the globalizing Amazon

open access: yesConservation Science and Practice, Volume 8, Issue 8, August 2026.
Tourism in the globalizing Peruvian Amazon contributes to harmful human–wildlife interactions and the wildlife trade, with tourists participating in activities such as handling wildlife, taking selfies with animals, purchasing live animals, and wild meat consumption.
Christian J. Rivera   +7 more
wiley   +1 more source

Emetine and Its Derivatives as Anticancer Agents Targeting the PI3K/AKT/mTOR Pathway: A Narrative Review of Mechanisms, Pharmacology, and Clinical Insights

open access: yesJournal of Cellular and Molecular Medicine, Volume 30, Issue 16, August 2026.
ABSTRACT Emetine (EMT), a naturally occurring tetrahydroisoquinoline alkaloid, shows diverse biological actions, including anticancer effects. Despite existing studies, the role of EMT derivatives in cancer, particularly in relation to the PI3K/AKT/mTOR signalling pathway, remains largely underexplored.
Mst. Ismatara Khatun   +10 more
wiley   +1 more source

Neotropical Cave Entrances as Environmental Filters for Vascular Plant Communities Along Low‐Light and Soil Resource Gradients

open access: yesJournal of Vegetation Science, Volume 37, Issue 4, July/August 2026.
Conceptual representation of cave entrances as ecological filters along the epigean forest–cave continuum in Neotropical quartzite systems. Vascular plant richness declines sharply from the well‐lit, organic‐rich forest toward the low‐light, quartz‐rich cave interior, while community composition and β‐diversity are shaped by the combined effects of ...
Rafael Costa Cardoso   +6 more
wiley   +1 more source

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