scholarly journals Floral scent composition predicts bee pollination system in five butterfly bush (Buddleja, Scrophulariaceae) species

Plant Biology ◽  
2014 ◽  
Vol 17 (1) ◽  
pp. 245-255 ◽  
Author(s):  
W.-C. Gong ◽  
G. Chen ◽  
N. J. Vereecken ◽  
B. L. Dunn ◽  
Y.-P. Ma ◽  
...  
Keyword(s):  
Floral Scent ◽  
Bee Pollination ◽  
Pollination System ◽  
Butterfly Bush

Floral scent in dioeciousSalix (Salicaceae)?a cue determining the pollination system?

1992 ◽  
Vol 182 (3-4) ◽  
pp. 229-237 ◽  
Author(s):  
Lars Tollsten ◽  
Jette T. Knudsen
Keyword(s):  
Floral Scent ◽  
Pollination System

scholarly journals Vertical and horizontal distribution of pollination systems in cerrado fragments of central Brazil

2007 ◽  
Vol 50 (3) ◽  
pp. 503-514 ◽  
Author(s):  
Fernanda Quintas Martins ◽  
Marco Antônio Batalha
Keyword(s):  
Spatial Distribution ◽  
Significant Variation ◽  
Horizontal Distribution ◽  
Bee Pollination ◽  
Vertical Variation ◽  
Pollination System ◽  
Cerrado Vegetation ◽  
Central Brazil ◽  
Vertical And Horizontal Distribution ◽  
Pollination Systems

In fragments of the cerrado, we determined the frequency of pollination systems and analyzed their spatial distribution. We placed 38 transects, sampling 2,280 individuals and 121 species. As expected in Neotropical regions, bee-pollination was the most frequent pollination system. We found a decrease in the frequency of plants pollinated by beetles towards the fragment interior. Similarly, we found significant variation in relation to height just for the bats; there was an increase in the frequency of plants pollinated by bats towards the higher heights. In general, we found no horizontal and vertical variation in the pollination systems, probably as consequence of the more open physiognomy of the cerrado vegetation.

A new species of Canavalia (Leguminosae, Papilionoideae) from Brazil with a specialized corolla suggesting bird pollination

Phytotaxa ◽  
2015 ◽  
Vol 207 (1) ◽  
pp. 115 ◽  
Author(s):  
Cristiane Snak ◽  
Gwilyn Peter Lewis ◽  
Douglas Eduardo Rocha ◽  
Luciano Paganucci Queiroz
Keyword(s):  
New Species ◽  
Systematic Study ◽  
New World ◽  
Floral Morphology ◽  
The Other ◽  
Bee Pollination ◽  
Pollination System ◽  
Bird Pollination ◽  
A New Species

During the development of a systematic study of the species of Canavalia from the New World a new species with floral morphology suggesting a bird pollination system was found, contrasting with the bee pollination pattern of the genus. Canavalia reflexiflora differs from the other species of the genus mainly by its flowers with a reflexed standard; in addition, it also has red flowers, wing and keel petals as long as the standard petal, and an oblong seed with the hilum surrounding nearly half the seed circumference.

Pollination ofCampomanesia phaea(Myrtaceae) by night-active bees: a new nocturnal pollination system mediated by floral scent

Plant Biology ◽  
2016 ◽  
Vol 19 (2) ◽  
pp. 132-139 ◽  
Author(s):  
G. D. Cordeiro ◽  
M. Pinheiro ◽  
S. Dötterl ◽  
I. Alves-dos-Santos
Keyword(s):  
Floral Scent ◽  
Pollination System

scholarly journals A key role for floral scent in a wasp-pollination system in Eucomis (Hyacinthaceae)

2008 ◽  
Vol 103 (5) ◽  
pp. 715-725 ◽  
Author(s):  
A. Shuttleworth ◽  
S. D. Johnson
Keyword(s):  
Floral Scent ◽  
Pollination System

A Semivolatile Floral Scent Marks the Shift to a Novel Pollination System in Bromeliads

2020 ◽  
Author(s):  
Paulo Milet-Pinheiro ◽  
Arthur Domingos-Melo ◽  
João B. Olivera ◽  
Nayara S.L. Albuquerque ◽  
Ana Carolina G. Costa ◽  
...  
Keyword(s):  
Floral Scent ◽  
Scent Marks ◽  
Pollination System

scholarly journals Floral Scent and Pollinators of Cypripedium calceolus L. at Different Latitudes

Diversity ◽  
2020 ◽  
Vol 13 (1) ◽  
pp. 5
Author(s):  
Herbert Braunschmid ◽  
Robin Guilhot ◽  
Stefan Dötterl
Keyword(s):  
Floral Scent ◽  
Latitudinal Gradients ◽  
Isolated Populations ◽  
Floral Scents ◽  
Selective Pressures ◽  
Octyl Acetate ◽  
Important Trait ◽  
Cypripedium Calceolus ◽  
Negative Frequency Dependent Selection ◽  
Plant Pollinator

Floral scent is an important trait in plant–pollinator interactions. It not only varies among plant species but also among populations within species. Such variability might be caused by various non–selective factors, or, as has been shown in some instances, might be the result of divergent selective pressures exerted by variable pollinator climates. Cypripedium calceolus is a Eurasian deceptive orchid pollinated mainly by bees, which spans wide altitudinal and latitudinal gradients in mainly quite isolated populations. In the present study, we investigated whether pollinators and floral scents vary among different latitudes. Floral scents of three C. calceolus populations in the Southern Alps were collected by dynamic headspace and analyzed by gas chromatography coupled to mass spectrometry (GC/MS). These data were completed by previously published scent data of the Northern Alps and Scandinavia. The scent characteristics were compared with information on pollinators recorded for present study or available in the literature. More than 80 scent compounds were overall recorded from plants of the three regions, mainly aliphatics, terpenoids, and aromatics. Seven compounds were found in all samples, and most samples were dominated by linalool and octyl acetate. Although scents differed among regions and populations, the main compounds were similar among regions. Andrena and Lasioglossum species were the main pollinators in all three regions, with Andrena being relatively more abundant than Lasioglossum in Scandinavia. We discuss natural selection mediated by pollinators and negative frequency–dependent selection as possible reasons for the identified variation of floral scent within and among populations and regions.

scholarly journals Generalized olfactory detection of floral volatiles in the highly specialized Greya-Lithophragma nursery pollination system

2021 ◽  
Author(s):  
Florian P. Schiestl ◽  
Erika A. Wallin ◽  
John J. Beck ◽  
Magne Friberg ◽  
John N. Thompson
Keyword(s):  
Selective Advantage ◽  
Floral Volatiles ◽  
Pollination System ◽  
Allopatric Populations ◽  
Evolutionary Scenario ◽  
Plant Recognition ◽  
Hexahydrofarnesyl Acetone ◽  
Electroantennographic Detection ◽  
Local Host ◽  
Olfactory Detection

AbstractVolatiles are of key importance for host-plant recognition in insects. In the pollination system of Lithophragma flowers and Greya moths, moths are highly specialized on Lithophragma, in which they oviposit and thereby pollinate the flowers. Floral volatiles in Lithophragma are highly variable between species and populations, and moths prefer to oviposit into Lithophragma flowers from populations of the local host species. Here we used gas chromatography coupled with electroantennographic detection (GC-EAD) to test whether Greya moths detect specific key volatiles or respond broadly to many volatiles of Lithophragma flowers. We also addressed whether olfactory detection in Greya moths varies across populations, consistent with a co-evolutionary scenario. We analyzed flower volatile samples from three different species and five populations of Lithophragma occurring across a 1400 km range in the Western USA, and their sympatric female Greya politella moths. We showed that Greya politella detect a broad range of Lithophragma volatiles, with a total of 23 compounds being EAD active. We chemically identified 15 of these, including the chiral 6, 10, 14-trimethylpentadecan-2-one (hexahydrofarnesyl acetone), which was not previously detected in Lithophragma. All investigated Lithophragma species produced the (6R, 10R)-enantiomer of this compound. We showed that Greya moths detected not only volatiles of their local Lithophragma plants, but also those from allopatric populations/species that they not encounter in local populations. In conclusion, the generalized detection of volatiles and a lack of co-divergence between volatiles and olfactory detection may be of selective advantage for moths in tracking hosts with rapidly evolving, chemically diverse floral volatiles.

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