Results 251 to 260 of about 207,643 (278)
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The Chemistry of Pollination in Selected Brazilian Maxillariinae Orchids: Floral Rewards and Fragrance

Journal of Chemical Ecology, 2004
We report the chemical composition of the floral rewards and the fragrance of 10 Maxillariinae (Orchidaceae) species. The species that offer rewards (labellar secretions) are usually scentless, the rewards being collected by bees. Chemical analyses revealed that the major chemical class of compounds present in the labellar secretions are triterpenoids.
Rodrigo Singer   +2 more
exaly   +3 more sources

Identification of Floral Fragrance Components in 20 Intersectional Hybrids of Paeonia in Luoyang Region

Flavour and Fragrance Journal
Intersectional hybrids of Paeonia (Paeonia Itoh hybrids) have rich colours and strong fragrance, combining the advantages of sect. Moutan and sect. Paeonia, and have great economic value and development potential.
Tongfei Niu   +6 more
semanticscholar   +1 more source

Volatile constituents and floral transcriptome analyses provide new insights into fragrance biosynthesis of Vanda ‘Tan Chay Yan’

Plant Biosystems, 2020
Vanda ‘Tan Chay Yan’, a beautiful golden-orange orchid with mild fragrance, is valuable in the floral industry. In this study, the volatile compounds from the flowers were profiled and a transcriptome library was created to search for fragrance-related ...
Parameswari Namasivayam   +2 more
exaly   +2 more sources

The antiquity of floral secretory tissues that provide today’s fragrances

Historical Biology, 2018
It is well known that flowers use scents to attract pollinators and that these fragrances are composed of a mixture of different chemical compounds, many of which form the basis of perfumes and col...
George Poinar, Greg Poinar
openaire   +1 more source

INSECT REPRODUCTION AND FLORAL FRAGRANCES: KEYS TO THE EVOLUTION OF THE ANGIOSPERMS?

TAXON, 1986
SummaryPollination systems in extant archaic angiosperms and cycads share three important characteristics. Based on these, it is suggested that insect pollination evolved primarily through meshing of the sexual life cycles of phytophagous insects with flowers in which floral odors served as chemical cues for mating sites and food. Floral fragrances may
Olle Pellmyr, Leonard B. Thien
openaire   +1 more source

Rapid Collection of Floral Fragrance Volatiles using a Headspace Volatile Collection Technique for GC-MS Thermal Desorption Sampling.

Journal of Visualized Experiments, 2019
Fragrances of many flower families have been sampled and the volatiles analyzed. Knowing the compounds that make up the fragrances can be an important step to conservation of flowers that are threatened or endangered. Because floral fragrance is critical
Haleigh A. Ray   +2 more
semanticscholar   +1 more source

Floral fragrances in Actaea, using differential chromatograms to discern between floral and vegetative volatiles

Phytochemistry, 1987
Abstract Floral fragrances in four species of Actaea (Ranunculaceae) and a hybrid were studied by GC-MS. They consist primarily of 10–15 closely related monoterpenes, and differ quantitatively between species. In order to separate the volatiles actually produced by the flower, parallel collections were made from inflorescence and vegetative parts ...
Olle Pellmyr   +2 more
openaire   +1 more source

Floral fragrance variation in Cypripedium: Implications for evolutionary and ecological studies

Phytochemistry, 1997
The floral fragrance compositions of eight species (including two putative varieties) of Cypripedium were determined by GC-mass spectrometry. Substantial diversity in fragrance compound skeletal type was detected and included benzenoid, terpenoid and fatty alcohol derivatives.
Todd J. Barkman   +2 more
exaly   +2 more sources

Molecular Control of Floral Fragrance

2002
Flowers of many plants attract pollinators by producing and emitting volatile compounds. The scent emitted by such flowers is typically a complex mixture of low-molecular-mass compounds (100–200 Da) which gives the flower its unique, characteristic fragrance.
openaire   +1 more source

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