Results 11 to 20 of about 20,822 (207)

Just add water: Rainfall‐induced anther closure and color change in Ripariosida hermaphrodita (Malvaceae)

open access: yesEcology and Evolution, 2023
Anther opening has commonly been thought of as unidirectional, but reports of anthers closing in response to rainfall show this is not the case. In some species, anther closure can protect pollen from degrading or washing away, thus possibly enhancing ...
Emily A. Humphreys, Cynthia Skema
doaj   +1 more source

Visual and Olfactory Floral Cues of Campanula (Campanulaceae) and Their Significance for Host Recognition by an Oligolectic Bee Pollinator. [PDF]

open access: yesPLoS ONE, 2015
Oligolectic bees collect pollen from a few plants within a genus or family to rear their offspring, and are known to rely on visual and olfactory floral cues to recognize host plants.
Paulo Milet-Pinheiro   +2 more
doaj   +1 more source

Why Do Floral Perfumes Become Different? Region-Specific Selection on Floral Scent in a Terrestrial Orchid. [PDF]

open access: yesPLoS ONE, 2016
Geographically structured phenotypic selection can lead to adaptive divergence. However, in flowering plants, such divergent selection has rarely been shown, and selection on floral signals is generally little understood.
Karin Gross   +2 more
doaj   +1 more source

Temperature regulation of carotenoid accumulation in the petals of sweet osmanthus via modulating expression of carotenoid biosynthesis and degradation genes

open access: yesBMC Genomics, 2022
Background Temperature is involved in the regulation of carotenoid accumulation in many plants. The floral color of sweet osmanthus (Osmanthus fragrans Lour.) which is mainly contributed by carotenoid content, is affected by temperature in autumn ...
Yiguang Wang   +7 more
doaj   +1 more source

Flower Color as Predictor for Nectar Reward Quantity in an Alpine Flower Community

open access: yesFrontiers in Ecology and Evolution, 2021
Entomophilous plants have evolved colorful floral displays to attract flower visitors to achieve pollination. Although many insects possess innate preferences for certain colors, the underlying proximate and ultimate causes for this behavior are still ...
Martin Streinzer   +2 more
doaj   +1 more source

Climate Predicts UV Floral Pattern Size, Anthocyanin Concentration, and Pollen Performance in Clarkia unguiculata

open access: yesFrontiers in Plant Science, 2020
Given that flower size and pigmentation can mediate plant–pollinator interactions, many studies have focused on pollinator-driven selection on these floral traits.
Kristen Peach   +2 more
doaj   +1 more source

Hibridación artificial en berenjena (Solanum melongena L.): efecto sobre la producción de frutos y semillas

open access: yesRevista U.D.C.A Actualidad & Divulgación Científica, 2008
La berenjena es una hortaliza con prospectiva de mercado nacional e internacional, por sus efectos positivos sobre la salud humana. En Colombia presenta limitaciones tecnológicas en materia de cultivares mejorados para las condiciones tropicales.
Hermes Araméndiz Tatis   +2 more
doaj   +1 more source

Birds Perceive More Intraspecific Color Variation in Bird-Pollinated Than Bee-Pollinated Flowers

open access: yesFrontiers in Plant Science, 2020
Pollinator-mediated selection is expected to constrain floral color variation within plant populations. Here, we test for patterns of constraint on floral color variation in 38 bee- and/or hummingbird-pollinated plant species from Colorado, United States.
Kenneth D. Whitney   +6 more
doaj   +1 more source

A Comparative Study of Flavonoids and Carotenoids Revealed Metabolite Responses for Various Flower Colorations Between Nicotiana tabacum L. and Nicotiana rustica L.

open access: yesFrontiers in Plant Science, 2022
Tobacco is a model plant for studying flower coloration. Flavonoids and carotenoids were reported to contribute to the flower color in many plants. We investigated the mechanism underlying flower color formation in tobacco by comparing the profiling ...
Qinzhi Xiao   +11 more
doaj   +1 more source

Intrafloral Color Modularity in a Bee-Pollinated Orchid

open access: yesFrontiers in Plant Science, 2020
Flower color has been studied in different ecological levels of organization, from individuals to communities. However, it is unclear how color is structured at the intrafloral level. In bee-pollinated flowers, the unidirectional gradient in color purity
João Marcelo Robazzi Bignelli Valente Aguiar   +6 more
doaj   +1 more source

Home - About - Disclaimer - Privacy