Results 141 to 150 of about 842,690 (365)

Dimorphic enantiostyly and its function for pollination by carpenter bees in a pollen‐rewarding Caribbean bloodwort

open access: yesAmerican Journal of Botany, EarlyView.
Abstract Premise Flowers that present their anthers and stigma in close proximity can achieve precise animal‐mediated pollen transfer, but risk self‐pollination. One evolutionary solution is reciprocal herkogamy. Reciprocity of anther and style positions among different plants (i.e., a genetic dimorphism) is common in distylous plants, but very rare in
Steven D. Johnson   +5 more
wiley   +1 more source

The New World species of Ataenius Harold, 1867 : 5. Revision of the A. strigatus group (Scarabaeidae: Aphodiinae: Eupariini) [PDF]

open access: yes, 2005
The strigatus group of the New World species of Ataenius Harold is revised. Seventeen species are recognized including two species described as new: Ataenius ecruensis sp. nov. from the United States and A. oaxacaensis sp. nov. from Mexico.
Lago, Paul K., Stebnicka, Zdzislawa T.
core  

Development of an in situ small intestinal injection technique for targeted macromolecule delivery and in vivo functional studies in mice

open access: yesAnimal Models and Experimental Medicine, EarlyView.
This study developed a minimally invasive, in situ small intestinal injection technique for mice, enabling targeted delivery of bioactive molecules while bypassing gastric degradation. Validation using functional assays and single‐cell RNA sequencing reveals high‐mobility group box 1–mediated epithelial responses, offering a translational tool for gut ...
Yawen Lai   +7 more
wiley   +1 more source

DNA metabarcoding reveals greater plant diversity than morphological seed analysis of bird feces

open access: yesApplications in Plant Sciences, EarlyView.
Abstract Premise Fruit‐eating birds drive seed dispersal in recovering tropical ecosystems, shaping forest regeneration. Molecular techniques, such as DNA metabarcoding, enable diet analysis from feces and can provide complementary frugivory data where dispersal is infrequent, as well as aid in seed identification in hyper‐diverse regions lacking ...
Carina I. Motta   +3 more
wiley   +1 more source

Genetic relationships within and among Iberian fescues (Festuca L.) based on PCR-amplified markers

open access: yes, 2006
The genus Festuca comprises approximately 450 species and is widely distributed around the world. The Iberian Penninsula, with more than 100 taxa colonizing very diverse habitats, is one of its main centers of diversification. This study was conducted to
Aiken S.G.   +47 more
core   +1 more source

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

open access: yesApplications in Plant Sciences, EarlyView.
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   +33 more
wiley   +1 more source

Descriptions of new luperine genera and species from Mexico : with keys to related taxa (Coleoptera: Chrysomelidae: Galerucinae) [PDF]

open access: yes, 1998
The section Scelidites ofthe subtribe Luperina is diagnosed and described. A key is provided to separate the genera within this section. Cyphotarsis Jacoby is reduced to a junior synonym of Metacoryna Jacoby.
Clark, Shawn M.
core   +1 more source

Functional morphology of the pharyngeal teeth of the ocean sunfish, Mola mola

open access: yesThe Anatomical Record, EarlyView.
Abstract Many fish use a set of pharyngeal jaws in their throat to aid in prey capture and processing, particularly of large or complex prey. In this study—combining dissection, CT scanning, histology, and performance testing—we demonstrate a novel use of pharyngeal teeth in the ocean sunfish (Mola mola), a species for which pharyngeal jaw anatomy had ...
Benjamin Flaum   +3 more
wiley   +1 more source

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