Results 121 to 130 of about 3,833,415 (234)

Evolutionary shifts to gynomonoecy correlate with changes in capitulum architecture in South African Helichrysum (Asteraceae)

open access: yesNew Phytologist, EarlyView.
Representative South African Helichrysum species illustrating variation in capitulum size. Summary Gynomonoecy has evolved repeatedly in Asteraceae, suggesting selective advantages for species whose capitula combine pistillate and bisexual flowers. Theories invoking conspicuous peripheral flowers and achene heteromorphism do not account for gynomonoecy
Zaynab Shaik   +3 more
wiley   +1 more source

From topology to biological meaning: why plant family classification matters beyond systematics

open access: yesNew Phytologist, EarlyView.
Conceptual framework for family‐level classification. Summary Plant family names are routinely used to structure comparative analyses, trait databases, floras, conservation assessments, and teaching. Yet, these names are not neutral labels: changing family boundaries changes the units across which biological patterns are compared, summarized, and ...
Tim Böhnert, Maximilian Weigend
wiley   +1 more source

Oral Ulcerations and Phytotherapy: Potential Role of Helichrysum Essential Oil—A Literature Review

open access: yesOral Diseases, EarlyView.
ABSTRACT Background Recurrent aphthous stomatitis (RAS) is a common yet therapeutically challenging chronic inflammatory disease of the oral mucosa, characterized by recurrent, painful ulcerations that substantially affect patients' quality of life. Objective This review summarizes current evidence on phytotherapy in RAS, with particular focus on the ...
Ruzica Ivkovic   +4 more
wiley   +1 more source

Deciphering Role of Endophytes in Plant Defences and Biotic Stress Resilience Across Families

open access: yesPlant, Cell &Environment, EarlyView.
ABSTRACT Plant families generate distinct repertoires of specialised metabolites that govern their biotic interactions. Endophytes strengthen host plant defence mechanisms and tolerance to biotic challenges by upregulating metabolite biosynthesis, modifying precursor compounds into more potent forms, or by directly synthesising analogous defence ...
S. Aneeqa Noor   +4 more
wiley   +1 more source

Annotated Checklist of the Aphids (Hemiptera: Aphididae) of Uzbekistan [PDF]

open access: yesJournal of Insect Biodiversity and Systematics
An updated checklist of Uzbekistan aphids (Hemiptera: Sternorrhyncha: Aphidomorpha) is presented based on literature records with the latest taxonomic and nomenclatural changes. This comprehensive checklist of aphids is the first checklist for Uzbekistan
Ikram Abdullaev   +13 more
doaj  

Variation in the essential oil composition of wild Artemisia absinthium from Hamadan, Iran, across phenological stages

open access: yesAgrosystems, Geosciences &Environment, Volume 9, Issue 4, December 2026.
Abstract The aim of this study was to evaluate variations in the essential oil composition of a wild Artemisia absinthium population from Hamadan, Iran, across three phenological stages (pre‐flowering, flowering, and post‐flowering) using gas chromatography–mass spectrometry analysis.
Elaheh Fayyaz
wiley   +1 more source

Non‐Destructive Analysis of Phenolic and Flavonoid Contents in Medicinal Plant Powders Using Hyperspectral Imaging and Variable Selection

open access: yesAnalytical Science Advances, Volume 7, Issue 2, December 2026.
ABSTRACT Phenolic and flavonoid contents in medicinal plants are essential to their growth and development and provide numerous health benefits, yet their quantification using traditional wet chemistry is labor‐intensive and time‐consuming. This study utilized the combination of two benchtop hyperspectral imaging (HSI) systems, namely short‐wave ...
Rahul Joshi   +9 more
wiley   +1 more source

Topic in Depth - Asteraceae, a.k.a. Sunflower Family

open access: yes
The Family Asteraceae (a.k.a. Compositae, Composite, Sunflower, Aster) is an impressively large and diverse family of flowering plants (circa 20,000 species).

core  

4‐Methylumbelliferone Restores Age‐Related Changes in Perineuronal Nets, Memory, and Neuroinflammation

open access: yesGlia, Volume 74, Issue 12, December 2026.
Brain aging alters perineuronal nets and neuroinflammation. 4‐methylumbelliferone reversed these aging‐associated changes. 4‐methylumbelliferone reduced age‐associated cognitive decline. Six months of chronic oral treatment was well tolerated. ABSTRACT Aging‐associated cognitive decline is closely linked to dysregulated glial activity and chronic ...
Anda Cimpean   +7 more
wiley   +1 more source

Locked Pollen, Unchanged Buzzes: Bumblebee Foraging Behavior Persists Despite Pollen Restriction in a Poricidal Legume

open access: yesNew Zealand Journal of Zoology, Volume 53, Issue 4, December 2026.
In plants that offer pollen as their sole floral reward, this resource is finite and nonreplenishable, making such plants useful systems for studying how resource availability across flowers shapes pollinator behavior. Because tropical ecosystems of the Global South harbor exceptionally diverse plant–pollinator interactions, understanding pollinator ...
Guilherme V. Mota   +3 more
wiley   +1 more source

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