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18 results for “fragrance”
Bioprospecting for improved floral fragrance in wild sunflowers
<p>Cultivated sunflower (<em>Helianthus annuus</em>) is not typically considered to have a pleasant floral fragrance. In field production, seed yield is often limited by pollination services, particularly in the production of hybrid seed. Improved floral fragrance, as determined by volatile organic compounds, maybe a route to improving pollinator attraction for oilseed and confectionary production and could also add value to ornamental sunflowers. Wild relatives of <em>H. annuus</em> have a long history of being used to breed improved traits into cultivated varieties, yet it is unknown whether favorable scents are present in wild <em>Helianthus</em> species and thus an available resource for fragrance breeding. To assess the diversity of floral fragrance available in crop wild relatives, 30 diverse accessions of wild Helianthus as well as seven varieties of <em>H. annuus</em> spanning a domestication gradient were grown in greenhouse experiments and variation in floral volatiles was analyzed by solid phase microextraction-gas chromatography-mass spectrometry. While alpha-pinene made up a significant portion of the volatiles emitted for most taxa, there was substantial diversity present across the genus as well as within <em>H. annuus</em>. Most volatiles emitted were monoterpenoids with a significant share of sesquiterpenoids. The diversity identified here will inform further targeted study of which compounds affect pollinator attraction and health. Several wild accessions such as <em>H. debilis subsp</em>. <em>tardiflorus</em> and <em>H. praecox subsp. praecox</em> as well as open-pollinated domesticated accessions of <em>H. annuus</em> show promise for breeding for improved floral fragrance due to high volatile abundance and likely favorable compound compositions.</p>
Figure 1 in Observations on fragrance collection becaviour of euglossine bees (Hymenoptera* Apidae)
Figure 1. Male of Eulaema in tce 'covering pcase' of becaviour at Cacasecum discolor.
Bioprospecting for improved floral fragrance in wild sunflowers
Open the record for dataset details and reuse information.
Figure 1 in Foraging patterns and artificial fragrance choices of male orchid bees in the Brazilian Atlantic Rainforest
Figure 1. Number of male euglossine bees belonging to the four most abundant species of orchid bees (Euglossa annectans, E. stellfeldi, E. iopoecila and E. roderici) attracted monthly to the eight fragrances offered to bees during the wet-warm season: (a) on Superagui Island (SI), over three sampling periods; (b) on RNSM. O, N, D, J, F, M, A = October, November, December, January, February, March and April, respectively. EG = eugenol; EC = eucalyptol; VN = vanillin; BI = betaionone; BA = benzyl acetate; MS = methyl salicylate; BB = benzyl benzoate; MC = methyl cinnamate.
Fig. 1 in What pollinators see does not match what they smell: Absence of color-fragrance association in the deceptive orchid Ionopsis utricularioides
Fig. 1. Spectral sensitivities of the bee models used for this study, Apis mellifera (A) and Melipona quadrifasciata (B), based on Peitsch et al. (1992), and color hexagon models for Ionopsis utricularioides using the spectral sensitivity of A. mellifera (C) and M. quadrifasciata (D). Each point represents the color loci of one individual. All flowers appear in the bee blue-green region of the hexagon and the variation is related to an increase of color saturation, as the points vary mostly in the distance from the center of the hexagon. Points are color-coded according to the continuous color saturation variation in I. utricularioides. The insets in (C) and (D) show the hexagon and its sections defined based on opponent processing of photoreceptor signals (B: blue; G: green; UV: ultraviolet). The circle at the center of the color hexagon has a radius of 0.1 hexagon units, for scale. (For interpretation of the references to color in this figure legend, the reader is referred to the Web version of this article.)
Fig. 2 in What pollinators see does not match what they smell: Absence of color-fragrance association in the deceptive orchid Ionopsis utricularioides
Fig. 2. Scatterplots of Pearson correlation (with 95% confidence regression interval) between classes of compounds and color saturation based on Apis mellifera (top row, pale yellow regression line) and Melipona quadrifasciata (bottom row, pale green regression line). None of the classes of compounds found on the orchid's fragrance is correlated with the color saturation. (For interpretation of the references to color in this figure legend, the reader is referred to the Web version of this article.)
Fig. 4 in What pollinators see does not match what they smell: Absence of color-fragrance association in the deceptive orchid Ionopsis utricularioides
Fig. 4. Comparison between fragrance and color distance matrices based on (A) Apis mellifera and (B) Melipona quadrisfasciata saturation values. In both cases, no correlation was found.
Fig. 3 in What pollinators see does not match what they smell: Absence of color-fragrance association in the deceptive orchid Ionopsis utricularioides
Fig. 3. Floral scent profiles of 25 individual flowers of I. utricularioides plotted in two dimensions based on non-metric multidimensional scaling (NMDS; 2D, stress: 0.16). Point colors were superimposed a posteriori on data points according to a scaling based on the continuous color saturation variation in I. utricularioides. (For interpretation of the references to color in this figure legend, the reader is referred to the Web version of this article.)
Comparing the Olfactory Perception of a Fragrance-Loaded SpECs Over Time
ClinicalTrials.gov study NCT07383337. IPD Sharing: Not stated. Countries: 0. Publications: 3.
A Single-Center, Clinical Study to Evaluate the Safety of a Non-Fragranced Personal Lubricant in Healthy Female Subjects
ClinicalTrials.gov study NCT02320227. IPD Sharing: Not stated. Countries: 1. Publications: 0.
A Single-Center, Clinical Study to Evaluate the Safety of a Fragranced Personal Lubricant in Healthy Female Subjects
ClinicalTrials.gov study NCT02320214. IPD Sharing: Not stated. Countries: 1. Publications: 0.
Clinical Evaluation of T.R.U.E. TEST® Fragrance Mix and Thimerosal Allergens:Bioequivalence of PVP Formulations
ClinicalTrials.gov study NCT00612768. IPD Sharing: Not stated. Countries: 1. Publications: 0.
pS6 immunoprecipitation RNA-seq of mouse olfactory epithelium in response to single odorants, binary mixtures, and complex fragrances
GEO Series GSE296360. Mus musculus. 36 samples. Type: Expression profiling by high throughput sequencing.
FRAGRANCE Part A Safety: Study to Find a Genetic Signature of de Novo Resistance to Letrozole
ClinicalTrials.gov study NCT00199134. IPD Sharing: Not stated. Countries: 1. Publications: 0.
Topic Compatibility Dermacyd Delicata - New Fragrance - Lactoserum - Hygiene
ClinicalTrials.gov study NCT00380991. IPD Sharing: Not stated. Countries: 1. Publications: 0.
Acceptability Lactoserum (Dermacyd Delicata - New Fragrance)
ClinicalTrials.gov study NCT00497783. IPD Sharing: Not stated. Countries: 1. Publications: 0.
Topic Compatibility Lactoserum (Dermacyd Delicata - New Fragrance)
ClinicalTrials.gov study NCT00497692. IPD Sharing: Not stated. Countries: 1. Publications: 0.
Acceptability Dermacyd Delicata - New Fragrance - Lactoserum - Hygiene
ClinicalTrials.gov study NCT00370162. IPD Sharing: Not stated. Countries: 1. Publications: 0.
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Allen Brain Atlas
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DANDI Archive for NWB datasets
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International Brain Laboratory public data
The International Brain Laboratory public data releases expose standardized mouse decision-making experiments, including Neuropixels recordings, widefield calcium imaging, behavior, and session metadata accessed through the ONE API.
OpenNeuro
OpenNeuro is a free, open platform for sharing neuroimaging datasets, with public search, dataset pages, and download paths for web, S3, DataLad, and the OpenNeuro CLI.