Results 151 to 160 of about 73,652 (334)

Bract size affects resource availability and fruit set in a hummingbird‐pollinated plant with distyly polymorphism

open access: yesPlant Biology, EarlyView.
In Psychotria poeppigiana, larger bracts honestly signal greater nectar availability but have higher mortality, while smaller bracts produce more fruit, revealing a surprising trade‐off and hints of sexual role specialization in this distylous species. Abstract Plants can use non‐floral signals to advertise the presence of resources to pollinators. The
R. Trevizan   +4 more
wiley   +1 more source

Soil seed banks in three restored wildlife corridors; implications for linear habitats in tropical environments

open access: yesRestoration Ecology, EarlyView.
Restoring habitat corridors between fragments and continuous forests can potentially counter the effects of isolation, especially in tropical forests where species sensitivity to fragmentation is high. The ability of restored linear habitats to absorb natural disturbance in inimical surroundings potentially reflects resilience, an important aim of ...
Nigel I. J. Tucker   +3 more
wiley   +1 more source

Leaf Flavonoids of Chrozophora Neck (Euphorbiceae) Members in Markazi Province Using Chromatographical Methods

open access: yesJournal of Medicinal Plants, 2012
Background: Flavonoids are as one set of the polyphenolic compounds among secondary metabolites in different organs of plants that are used in plant chemotaxonomy and pharmacognosy.
M Noori, H Zare Mayvan, A Mazaheri
doaj  

Fire effects on the composition of soil seed bank and soil properties in Iran

open access: yesAgrosystems, Geosciences &Environment, Volume 8, Issue 3, September 2025.
Abstract Fire is a frequent phenomenon in rangelands and because of its complicated and different effects on natural ecosystems, it has great importance. Awareness of such fire effects on vegetation cover in point of rangeland management after fire is important and helps better understanding and sustainable management of rangelands.
Rouhollah Rezaei   +3 more
wiley   +1 more source

A narrative literature review about alpha‐lipoic acid role in dry eye and ocular surface disease

open access: yesActa Ophthalmologica, Volume 103, Issue 6, Page e346-e363, September 2025.
Abstract Ocular surface diseases (OSD) include various conditions that affect the eye's surface, causing discomfort and pain. One such condition, dry eye disease (DED), is a multifactorial disorder that significantly impacts patients' quality of life, with prevalence rates ranging from 5% to 50% and higher incidence in women.
Antonio J. Mateo Orobia   +4 more
wiley   +1 more source

Characterization of the complete chloroplast genome of Euphorbia helioscopia Linn. (Euphorbiaceae), a traditional Chinese medicine

open access: yesMitochondrial DNA. Part B. Resources, 2019
Euphorbia helioscopia Linn. known as a traditional Chinese medicine of Euphorbiaceae, which contains terpenes, steroids, flavonoids, acetophenones, tannins, phenylpropanoids, cerebrosides and so on. Euphorbia helioscopia L.
Peng Li, Xiaoqing Liang, Xiaoni Zhang
doaj   +1 more source

Preparation, Structure, and Bioactivities of Medicinal and Edible Homologous Plant Polysaccharides: A Review

open access: yesFood Science &Nutrition, Volume 13, Issue 8, August 2025.
This article reviews the research progress of medicinal and edible homologous plant polysaccharides (MEHPPs). It introduces their extraction and purification methods, expounds on structural characterization techniques, and elaborates on various biological activities and their mechanisms, providing a basis for the development of drugs and health ...
Mengnan Chen   +3 more
wiley   +1 more source

Ants on flowers: Protective ants impose a low but variable cost to pollination, moderated by location of extrafloral nectaries and type of flower visitor

open access: yesJournal of Ecology, Volume 113, Issue 8, Page 2187-2198, August 2025.
Individuals who engage in multiple mutualisms often have to pay indirect costs because of the interference of one mutualism on another. We found that protective ants had a low but variable impact on pollination, especially on the flower visitation by bees and when EFNs are close to inflorescences.
Amanda Vieira da Silva   +4 more
wiley   +1 more source

Chemical composition and yield of essential oil from three Croton species

open access: yesCiência Rural
: Marmeleiros are popularly known for the medicinal properties ascribed to their essential oils. This research aimed to analyze the essential oil of leaves from three Croton species (Croton argyrophylloides, Croton jacobinensis, and Croton sincorensis ...
Giuliane Sampaio de Souza   +3 more
doaj   +1 more source

Diverging repeatomes in holoparasitic Hydnoraceae uncover a playground of genome evolution

open access: yesNew Phytologist, Volume 247, Issue 3, Page 1520-1537, August 2025.
Summary The transition from an autotrophic to a heterotrophic lifestyle is associated with numerous genomic changes. These often involve large genomic alterations, potentially driven by repetitive DNAs. Despite their recognized role in shaping plant genomes, the contribution of repetitive DNAs to parasitic plant genome evolution remains largely ...
Woorin Kim   +7 more
wiley   +1 more source

Home - About - Disclaimer - Privacy