Results 51 to 60 of about 15,668 (219)

Multifunctional Bracts in the Dove Tree Davidia involucrata (Nyssaceae:Cornales) [PDF]

, 2008
Although there has been much experimental work on floral traits that are under selection from mutualists and antagonists, selection by abiotic environmental factors on flowers has been largely ignored.
Gong, Yan-Bing, Huang, Shuang-Quan, Renner, Susanne S., Sun, Ji-Fan   +3 more
core   +1 more source

Aging and longevity in decades‐old genebanked seeds from U.S. endangered plant species: Assessments using survival and RNA integrity assays

American Journal of Botany, Volume 113, Issue 3, March 2026.
Abstract Premise Seed longevity is critical for successful genebanking, but it is hard to detect or predict. We examined survival of genebanked seeds from species native to the United States to estimate longevity. We tested whether RNA integrity (RIN) can be used to detect aging and predict mortality. Methods Dry seeds from >100 species were stored for
Christina Walters, Katherine D. Heineman, Lisa Hill, Hannah Tetreault, Parker Tyler, Zoe Zingerman, Shaimaa Ibrahim, Joyce Maschinski   +7 more
wiley   +1 more source

Sofistikimi i taktikave të Marrëdhënieve me Publikun në Bashkinë e Tiranës [PDF]

, 2017
Ky artikull ka si objekt studimin e komunikimit me publikun të Bashkisë së Tiranës në këndvështrimin e teknikave të përdorura për përcjelljen e mesazheve drejtuar publikut, kanaleve të komunikimit të përdorura nga ekipi i PR në këtë institucion ...
Skura, Gentiana
core  

A New \u3ci\u3eFlexamia\u3c/i\u3e (Homoptera: Cicadellidae: Deltocephalinae) From Southern Michigan [PDF]

, 2018
A new species, Flexamia huroni, is described from a prairie fen in south- eastern Michigan. This leafhopper is closely related to the western F. serrata B & T, a specialist on mat muhly (Muhlenbergia richardsonis). Like its sister species, F.
Bess, James A, Hamilton, K. G. A
core   +2 more sources

Assessing the viability of genebanked seeds from rare, wild plants native to the United States using the D.E.A.D. paradigm

Applications in Plant Sciences, Volume 14, Issue 2, March-April 2026.
Abstract Premise Genebanks must maintain viable seeds for decades. Seeds that germinate are clearly alive, but some seeds, often from wild populations, do not germinate because they are dormant, empty, aged, or damaged (D.E.A.D.). This work evaluates the effects of D.E.A.D.
Christina Walters, Lisa M. Hill, Katherine D. Heineman, Hannah M. Tetreault, Shaimaa Ibrahim, Katherine Markstein, Cheryl Birker, Kris Freitag, Dustin Wolkis, Michael Kunz, Sheila Murray, Nathaniel Kingsley, Alexandra Seglias, Nicholas Matsumoto, Thomas N. Kaye, Cheryl Peterson, Matthew A. Albrecht, Noah Dell, Stacy Anderson, Steve Blackwell, David Remucal, Wendy Gibble, Anita Tiller, Emily Coffey, Jason Ligon, Laurie Blackmore, Carrie Radcliffe, Heather E. Schneider, Kristen Nelson, David Sollenberger, Jessamine Finch, Kate Wellspring, Robert Jetton, Joyce Maschinski   +33 more
wiley   +1 more source

Demographic viability of populations of \u3cem\u3eSilene regis\u3c/em\u3e in midwestern prairies: relationships with fire management, genetic variation, geographic location, population size and isolation [PDF]

, 1998
We studied the demographic viability of populations of a long-lived iteroparous prairie perennial, Silene regia, in relation to management regimes, population sizes, geographical region (Ohio and Indiana vs.
Dolan, Rebecca W., Menges, Eric S.
core   +1 more source

On the Limits of Alpine Plants: A Systematic Review of the Factors Behind Species' Elevational Range Limits

Ecology and Evolution, Volume 16, Issue 3, March 2026.
This systematic review of 107 studies on the factors behind the elevational range limits of alpine vascular plants shows a persistent emphasis on upper limits and abiotic factors, especially temperature, while work at lower limits is more evenly distributed across water availability, plant–plant interactions, and selection/local adaptation.
Sophie E. Weides, John‐Arvid Grytnes, Stefan Dullinger, Jonathan Lenoir, L. Camila Pacheco‐Riaño, John R. Pannell, Sonja Wipf, Sabine B. Rumpf   +7 more
wiley   +1 more source

Iridoids and Flavonoids of Four Siberian Gentians: Chemical Profile and Gastric Stimulatory Effect

Molecules, 2015
Some Gentiana species have been used by the nomadic people of Siberia as bitter teas or appetizers to eliminate digestive disorders (dyspepsia, heartburn, nausea, etc.). We studied the most frequently used gentians: Gentiana algida, G.
Daniil N. Olennikov, Nina I. Kashchenko, Nadezhda K. Chirikova, Larisa M. Tankhaeva   +3 more
doaj   +1 more source

Variation in the chloroplast DNA of Swiss stone pine (Pinus cembra L.) reflects contrasting post-glacial history of populations from the Carpathians and the Alps [PDF]

, 2009
To characterize the genetic structure and diversity of Pinus cembra L. populations native to two disjunct geographical areas, the Alps and the Carpathians, and to evaluate the rate of genetic differentiation among ...
Belokon, Bucci, Burga, Critchfield, Dupanloup, Eckert, Ellstrand, Excoffier, Farcas, Goncharenko, Gugerli, Gugerli, Gugerli, Gugerli, Hammer, Hamrick, Hartl, Hilfiker, Huntley, Höhn, Krutovskii, Krutovskii, Landergott, Lang, Manni, Marhold, Meusel, Mraz, Neale, Nei, Petit, Petit, Powell, Puşcaş, Ronikier, Salzer, Sperisen, Tollefsrud, Tomback, Vendramin, Willis, Wright   +41 more
core   +1 more source

A Digestive Herbal Mixture Preparation Stimulates Proton Secretion in Human Parietal Cells through Phenolic Compounds Targeting Bitter Taste Receptors

Molecular Nutrition &Food Research, Volume 70, Issue 6, 29 March 2026.
Polyphenol‐rich herbal extracts stimulate proton secretion in human parietal cells (HGT‐1) via activation of extra‐oral bitter taste receptors (TAS2Rs). A commercially available herbal mixture preparation and its nine solvent extracts show concentration‐dependent effects correlating with total polyphenol content.
Phil Richter, Maria‐Riera Piqué‐Borràs, Gerald Künstle, Veronika Somoza   +3 more
wiley   +1 more source