Results 71 to 80 of about 13,138 (271)

Diet Switching and Interspecific Competition in Sympatric Steppe Ungulates Under Seasonal Resource Variability

open access: yesEcology and Evolution, Volume 16, Issue 2, February 2026.
ABSTRACT Understanding the mechanisms of competition and coexistence among sympatric species is crucial for deepening our understanding of interspecific interactions and informing the conservation of rare and endangered wildlife. In this study, we utilized DNA macro‐barcoding technology to analyze the seasonal dietary habits of Kiang (Equus kiang) and ...
Huiqin Dong   +5 more
wiley   +1 more source

Variation and evolution of herkogamy in Exochaenium (Gentianaceae): implications for the evolution of distyly [PDF]

open access: yes, 2017
Backgrounds and Aims The spatial separation of stigmas and anthers (herkogamy) in flowering plants functions to reduce self-pollination and avoid interference between pollen dispersal and receipt.
Barrett, Spencer C. H.   +1 more
core  

Complete plastid genome of Gentiana zollingeri Fawcett (Gentianaceae) and phylogenetic analysis

open access: yesMitochondrial DNA. Part B. Resources, 2022
Gentiana zollingeri Fawcett (Gentianaceae) belongs to the most species-rich section, Chondrophyllae, in the Gentianaceae, but its phylogenetic relationship with other members of this section is unclear.
Jing Yu, Pengcheng Fu, Shanshan Sun
doaj   +1 more source

Multiple Glacial Refugia and Complex Postglacial Dynamics of Primula sikkimensis (Primuaceae) in the Heterogeneous Qinghai‐Tibet Plateau

open access: yesEcology and Evolution, Volume 16, Issue 2, February 2026.
Primula sikkimensis persisted in distinct glacial refugia within the Hengduan Mountains and eastern Himalayas during the Last Glacial Maximum. Subsequent postglacial range expansions onto the Qinghai–Tibet Plateau were accompanied by secondary contact and interspecific hybridization, collectively enhancing genetic diversity and adaptive capacity. These
Hua‐Ying Sun   +10 more
wiley   +1 more source

A new secoiridoid glycoside and other constituents from the roots and flowers of Fagraea fragrans Roxb. (Gentianaceae)

open access: yesNatural Product Research, 2020
A new secoiridoid glycoside, 3’-O-p-trans-coumaroylsweroside (1), together with twenty-nine compounds (2–30), were isolated from the roots and flowers of Fagraea fragrans Roxb. (Gentianaceae).
Watchara Sangsopha   +6 more
semanticscholar   +1 more source

New Anthracenone and Xanthenones From Tricholaena teneriffae With Antioxidant Activity: In Vitro and In Silico Studies

open access: yesChemistry &Biodiversity, Volume 23, Issue 1, January 2026.
Three novel phenolic compounds and one known benzoxanthenone are isolated from Tricholaena teneriffae. Compounds (1–3) demonstrate potent antioxidant activity, comparable to that of vitamin C, while compound (4) exhibits negligible activity. Docking studies are employed to validate the binding of the compounds to lipoxygenase‐3, providing evidence of ...
Yosra Belghith   +5 more
wiley   +1 more source

Sulphur Analogues of Homoisoflavonoids as Potential Treatments for Neovascular Eye Diseases

open access: yesChemMedChem, Volume 21, Issue 2, January 2026.
Neovascular eye diseases are characterised by the abnormal growth of often fragile blood vessels in the eye. Treatment focuses on reducing angiogenesis as well as reducing oxidative stress induced inflammation, a key underlying cause. Synthetic sulphur analogues of naturally occurring homoisoflavonoids, synthesised in three steps, have shown promise as
Jacob D. Hiles   +9 more
wiley   +1 more source

Temporal dynamics of the shrub and herbaceous layer of an area of moist grassland in Alto Paraíso de Goiás, Brazil [PDF]

open access: yes, 2011
Este trabalho avaliou a dinâmica estrutural e fl orística de uma comunidade de espécies herbáceo-arbustivas de uma área de campo limpo úmido em Alto Paraíso de Goiás, o primeiro inventário realizado em 2000 (T0) e o segundo em 2007 (T1).
Anderson J.E.   +52 more
core   +4 more sources

From Seed to Seedling: Constraints Imposed by Warming, UV‐B, and Burial Depth on Alpine Cushion Plant Recruitment

open access: yesEcology and Evolution, Volume 16, Issue 1, January 2026.
This study investigated the effects of warming temperatures, intense UV‐B radiation, and seed burial depth on seedling emergence, growth, and survival of 11 cushion plant species in alpine subnival zones of the Himalaya‐Hengduan Mountains. Deep burial (> 1 cm) severely inhibited emergence in 10 species, with viability loss within 3 months.
Meihong Huang   +5 more
wiley   +1 more source

About the presence of Gentianella amarella (Gentianaceae) in Spain: a vindication of G. hispanica. Gentianella hispanica [PDF]

open access: yes, 2016
López Udias, Fabregat & Renob. fue descrita en el año 2002 a partir de poblaciones localizadas en el centro de España, aunque posteriormente, en la revisión del género para la Península Ibérica publicada en 2012, pasa a ser considerada como sinónimo de G.
Fabregat, Carlos, López-Udias, Silvia
core   +1 more source

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