Results 11 to 20 of about 20,822 (207)
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
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Visual and Olfactory Floral Cues of Campanula (Campanulaceae) and Their Significance for Host Recognition by an Oligolectic Bee Pollinator. [PDF]
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
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Why Do Floral Perfumes Become Different? Region-Specific Selection on Floral Scent in a Terrestrial Orchid. [PDF]
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
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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
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Flower Color as Predictor for Nectar Reward Quantity in an Alpine Flower Community
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
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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
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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
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Birds Perceive More Intraspecific Color Variation in Bird-Pollinated Than Bee-Pollinated Flowers
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
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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
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Intrafloral Color Modularity in a Bee-Pollinated Orchid
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
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