Results 21 to 30 of about 54 (52)

Well‐resolved phylogeny supports repeated evolution of keel flowers as a synergistic contributor to papilionoid legume diversification

New Phytologist, Volume 247, Issue 1, Page 369-387, July 2025.
Summary The butterfly‐shaped keel flower is a highly successful floral form in angiosperms. These flowers steer the mechanical interaction with bees and thus are hypothesized to accelerate pollinator‐driven diversification. The exceptionally labile evolution of keel flowers in Papilionoideae (Fabaceae) provides a suitable system to test this hypothesis.
Liming Cai, Domingos Cardoso, Lydia G. Tressel, Chaehee Lee, Bikash Shrestha, In‐Su Choi, Haroldo C. de Lima, Luciano P. de Queiroz, Tracey A. Ruhlman, Robert K. Jansen, Martin F. Wojciechowski   +10 more
wiley   +1 more source

Nectar metabolomes contribute to pollination syndromes

New Phytologist, Volume 247, Issue 2, Page 951-967, July 2025.
Summary ‘Pollination syndromes’, where convergent floral signals reflect selection from a functional pollinator group, are often characterized by physical features, yet floral rewards such as nectar may also reflect selection from pollinators. We asked whether nectar chemistry shows evidence of convergence across functional pollinator groups, i.e.
Fiona T. MacNeill, Sarah G. Hunter, Felicity Muth, Brian E. Sedio   +3 more
wiley   +1 more source

Osmoxylon‐like fossils from early Eocene South America: West Gondwana–Malesia connections in Araliaceae

American Journal of Botany, Volume 112, Issue 6, June 2025.
Abstract Premise Araliaceae comprise a moderately diverse, predominantly tropical angiosperm family with a limited fossil record. Gondwanan history of Araliaceae is hypothesized in the literature, but no fossils have previously been reported from the former supercontinent.
Peter Wilf
wiley   +1 more source

ANATOMÍA FLORAL DE CINCO ESPECIES DE OPUNTIA (OPUNTIOIDEAE, CACTACEAE) DE MÉXICO

Polibotánica, 2009
Se describe y compara la anatomía floral de cinco especies de Opuntia de México con el objetivo de contribuir al conocimiento del género. Tres o más botones florales con tamaño antes de antesis y flores en antesis se fijaron y procesaron con la ...
Mireya Fuentes-Pérez, Teresa Terrazas, Salvador Arias   +2 more
doaj  

CRABS CLAW‐independent floral nectary development in Penstemon barbatus

American Journal of Botany, Volume 112, Issue 6, June 2025.
Abstract Premise Plants secrete carbohydrate‐rich nectar from specialized floral nectary glands to attract pollinators. Arabidopsis and Petunia (rosid and asterid core eudicots, respectively) share genetic control of nectary development requiring activation of CRABS CLAW by euAGAMOUS and PLENA.
Amanda M. Katzer, Carolyn A. Wessinger, Brooklyn M. Anaya, Lena C. Hileman   +3 more
wiley   +1 more source

The developmental basis of floral nectary diversity and evolution

New Phytologist, Volume 246, Issue 6, Page 2462-2477, June 2025.
Summary Nectar is a central bridge between angiosperms and animal mutualists. It is produced by specialized structures termed nectaries, which can be found on different plant organs. Consumption of floral nectar by pollinators and the subsequent transfer of pollen contribute to the reproductive success of both angiosperms and their pollinators.
Irene T. Liao, Yan Gong, Elena M. Kramer, Lachezar A. Nikolov   +3 more
wiley   +1 more source

In the nectar, there are answers: exploring the intersection of colored nectars and reactive oxygen species in manipulating pollinator behavior

New Phytologist, Volume 246, Issue 3, Page 901-910, May 2025.
Summary Nectar, a vital mediator of plant–pollinator interactions, exhibits remarkable chemical diversity beyond sugars, including reactive oxygen species and specialized metabolites such as pigments. Colored nectars, present in over 70 species, function as visual signals, inhibitors of microbial growth, or nutritional rewards, underscoring their ...
Evin T. Magner, Rahul Roy, Adrian D. Hegeman, Clay J. Carter   +3 more
wiley   +1 more source

Nectar peroxide: assessing variation among plant species, microbial tolerance, and effects on microbial community assembly

New Phytologist, Volume 246, Issue 3, Page 1361-1376, May 2025.
Summary Nectar contains antimicrobial constituents including hydrogen peroxide, yet it is unclear how widespread nectar hydrogen peroxide might be among plant species or how effective it is against common nectar microbes. Here, we surveyed 45 flowering plant species across 23 families and reviewed the literature to assess the field‐realistic range of ...
Leta Landucci, Rachel L. Vannette
wiley   +1 more source

Estudios morfo-anatómicos en nectarios florales y extraflorales de Triumfetta rhomboidea (Malvaceae, Grewioideae)

, 2009
Fil: Lattar, Elsa Clorinda. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Nordeste. Instituto de Botánica del Nordeste. Universidad Nacional del Nordeste. Facultad de Ciencias Agrarias. Instituto de Botánica del Nordeste; Argentina. Universidad Nacional del Nordeste.
Lattar, Elsa Clorinda, Solis, Stella Maris, Avanza, Maria Mercedes, Ferrucci, María Silvia   +3 more
openaire   +1 more source

Phylogenomics, historical biogeography, and diversification of leaf traits in the Malagasy‐endemic genus Uncarina (Pedaliaceae)

American Journal of Botany, Volume 112, Issue 4, April 2025.
Abstract Premise Uncarina contains 14 species of woody plants endemic to Madagascar. Its occurrence across dryland biomes on the island make it an interesting system to study the diversification of the flora. Methods Using samples of all species and 512 nuclear loci, we reconstructed phylogenetic trees to examine species relationships and assess their ...
Jeffrey P. Rose, John G. Zaborsky, Nisa Karimi, Kenneth J. Sytsma   +3 more
wiley   +1 more source