Oncidinol — A Novel Diacylglycerol from Ornithophora radicans Barb. Rodr. (Orchidaceae) Floral Oil.

ChemInform ◽  
2004 ◽  
Vol 35 (9) ◽  
Author(s):  
Mariza Gomes Reis ◽  
Aparecida Donisete de Faria ◽  
Maria do Carmo Estanislau do Amaral ◽  
Anita Jocelyne Marsaioli
Keyword(s):  
Floral Oil

scholarly journals The Chemical Composition of Phymatidium Delicatulum and P. Tillandsioides (Orchidaceae) Floral Oils

2006 ◽  
Vol 1 (9) ◽  
pp. 1934578X0600100 ◽  
Author(s):  
Mariza G. Reis ◽  
Rodrigo B. Singer ◽  
Renato Gonçalves ◽  
Anita J. Marsaioli
Keyword(s):  
Chemical Composition ◽  
Southeastern Brazil ◽  
Floral Oil

The chemistry of the floral oils of Phymatidium delicatulum and P. tillandsioides (Orchidaceae) is described. These small epiphytes produce the oils in a complex gland (the elaiophore) located on the median petal. The floral oils of P. tillandsioides were shown to be comprised mostly of acylglycerols, as in many other Oncidiinae orchids from southeastern Brazil. Surprisingly, the floral oil of P. delicatulum was composed, predominantly, of relatively simple linear hydrocarbons. Evidence that P. delicatulum is pollinated by females of the oil-gathering bee genus Tetrapedia (Apidae: Tetrapediini) is presented.

scholarly journals Floral-oil-producing Plantaginaceae species: geographical distribution, pollinator rewards and interactions with oil-collecting bees

2013 ◽  
Vol 13 (4) ◽  
pp. 77-89 ◽  
Author(s):  
Aline Cristina Martins ◽  
Isabel Alves-dos-Santos
Keyword(s):  
Geographical Distribution ◽  
Evolutionary History ◽  
Neotropical Region ◽  
South American ◽  
Oil Glands ◽  
Especial Case ◽  
History Of ◽  
Plant Families ◽  
Floral Oil ◽  
Pollinator Rewards

Floral oils as reward to pollinators occur in eleven plant families and appeared at least 28 times in the evolutionary history of flowering plants. They are produced in epithelial or tricomatic glands and collected by oil bee visitors. The present paper focuses on floral-oil-producing species of Plantaginaceae, a Neotropical group namely Angelonia clade. This group comprises around 40 described species in the genera Angelonia, Basistemon, Monttea, Monopera and the oil-less Melosperma. We present a revision of all species of the Angelonia clade, their geographical distribution, resources offered to pollinators and records of flower visitors, especially oil-collecting bees. These plants rely only on oil-collecting species in the tribe Centridini and Tapinotaspidini for a successful pollination, being the interaction between both partners an especial case of bee/flower adaptation in Neotropical region. Some bee species depend only on the oil of Plantaginaceae flowers to survive, while others can collect on several floral oil sources. The pollinating bees explore the oil glands located in sacs using specialized hairs in the forelegs. With this study, we hope to inspire further research relating to this fascinating group of plants, in which most species are rare and occur in highly endangered habitats in South American open vegetation biomes.

scholarly journals The Similar Usage of a Common Key Resource Does Not Determine Similar Responses by Species in A Community of Oil-collecting Bees

Sociobiology ◽  
2017 ◽  
Vol 64 (1) ◽  
pp. 69
Author(s):  
Cândida Maria Lima Aguiar ◽  
Shantala Lua ◽  
Maise Silva ◽  
Paulo Enrique Cardoso Peixoto ◽  
Heiddy M Alvarez ◽  
...  
Keyword(s):  
Species Richness ◽  
Abiotic Factors ◽  
Ecological Factor ◽  
Total Abundance ◽  
Neotropical Savanna ◽  
Biotic And Abiotic Factors ◽  
Number Of Species ◽  
The Common ◽  
Species Richness And Abundance ◽  
Floral Oil

Variations in abundance and species richness among communities are often determined by interactions between biotic and abiotic factors. However, for communities composed of species that share a common specialization (such as similar foraging adaptations) it may be a key ecological factor involved in the common specialization that affects community variations. To evaluate this possibility, we characterized the guild of oil-collecting bees of a Neotropical savanna in Brazil and tested whether differences in Byrsonima abundance and availability of floral oil explain differences in species richness and abundance of oil-collecting bees of different tribes. Both the number of species and total abundance of Centridini species increased with the abundance of Byrsonima. One plausible explanation for the stronger adjustment between the abundance of Centridini and Byrsonima is that the abundance of these plants affects not only the availability of floral oil, but also of pollen. These findings indicate that the existence of a common specialization among different species does not homogenize their response to variations in a common explored resource.

scholarly journals Paleocene origin of the Neotropical lineage of cleptoparasitc bees Ericrocidini-Rhathymini (Hymenoptera, Apidae)

2017 ◽  
Author(s):  
Aline C. Martins ◽  
David R. Luz ◽  
Gabriel A. R. Melo
Keyword(s):  
Taxonomic Classification ◽  
Host Specialization ◽  
Divergence Times ◽  
Molecular Evidence ◽  
Nesting Biology ◽  
First Instar ◽  
Sister Relationships ◽  
Floral Oil ◽  
Immature Host

AbstractCleptoparasitic bees abandoned the pollen collecting for their offspring and lay their eggs on other bees’ provisioned nests. Also known as cuckoo bees they belong to several lineages, especially diverse in Apinae. We focused on a lineage of Apinae cleptoparasitic bees, the clade Ericrocidini+Rhathymini, which attack nests of the oil-collecting bees. We sequenced five genes for a broad sampling in this clade plus a large outgroup and reconstruct phylogeny and divergence times. We confirmed the monophyly of the clade Ericrocidini+Rhathymini and its position inside the ericrocidine line, together with the tribes Protepeolini, Isepeolini and Coelioxoidini. Our results corroborate the current taxonomic classification. Ericrocis is the basal most lineage in Ericrocidini and the position of Acanthopus and the most diverse genus Mesoplia were inconclusive. Ericrocidini+Rhathymini diverged from Parepeolus aterrimus 74 mya in the Cretaceous. Considering the robust molecular evidence of their sister relationships, the striking differences on the first instar larvae morphology of the two groups are probably adaptations to the distinct nesting biology of their hosts. As other parasites in the ericrocidine line, both groups possess larvae adapted to kill the immature host and to feed on floral oil provisioned by the host female. The evolution of host specialization in the line Ericrocidini+Rhathymini retroced to the Eocene when they arose synchronously with their hosts, Centris and Epicharis.

Indofevillea Jiroi (Cucurbitaceae), a New Floral Oil Producing Species from Northeastern Myanmar

2012 ◽  
Vol 17 (2) ◽  
pp. 323-332 ◽  
Author(s):  
Hanno Schaefer ◽  
Bruce Bartholomew ◽  
David E. Boufford
Keyword(s):  
Floral Oil

scholarly journals Pterandric Acid – its Isolation, Synthesis and Stereochemistry

2015 ◽  
Vol 10 (1) ◽  
pp. 1934578X1501000
Author(s):  
Muhammad A. Haleem ◽  
Simone C. Capellari ◽  
Beryl B. Sympson ◽  
Anita J. Marsaioli
Keyword(s):  
Fatty Acid ◽  
Chemical Composition ◽  
Mass Spectrometric ◽  
The Other ◽  
Spectrometric Analysis ◽  
Pollination System ◽  
Plant Families ◽  
Floral Oil ◽  
Unique Chemical ◽  
C Nmr

Some plant families have a specialized type of pollination system, with floral lipid rewards for pollinators, which is common. In neotropical Malpighiaceae species like Pterandra pyroidea, this specialized type of pollination system is apparently shifting from floral oils/lipids to pollen reward. Mass spectrometric analysis (GC/MS-EI) indicated that P. pyroidea floral oil has a unique chemical composition, i.e., few fatty acid constituents possessing acetoxy groups at positions 5 and 7, which is distinct from the other floral oils of sympatric Malpighiaceae species. The structure of the major floral oil constituent, a novel fatty acid, a nti-5,7-diacetoxydocosanoic acid, was confirmed based on synthesis, mass fragmentation, and 1H and 13C NMR analyses; the compound is herein named pterandric acid.

A New Type of Floral Oil fromMalpighia coccigera (Malpighiaceae) and Chemical Considerations on the Evolution of Oil Flowers

2004 ◽  
Vol 1 (10) ◽  
pp. 1519-1528 ◽  
Author(s):  
Lars Seipold ◽  
G�nter Gerlach ◽  
Ludger Wessjohann
Keyword(s):  
New Type ◽  
Oil Flowers ◽  
Floral Oil

scholarly journals Floral oil collection by male Tetrapedia bees (Hymenoptera: Apidae: Tetrapediini)

Apidologie ◽  
2011 ◽  
Vol 43 (1) ◽  
pp. 39-50 ◽  
Author(s):  
Simone C. Cappellari ◽  
Gabriel A. R. Melo ◽  
Antonio J. C. Aguiar ◽  
John L. Neff
Keyword(s):  
Floral Oil

Oncidinol—a novel diacylglycerol from Ornithophora radicans Barb. Rodr. (Orchidaceae) floral oil

2003 ◽  
Vol 44 (46) ◽  
pp. 8519-8523 ◽  
Author(s):  
Mariza Gomes Reis ◽  
Aparecida Donisete de Faria ◽  
Maria do Carmo Estanislau do Amaral ◽  
Anita Jocelyne Marsaioli
Keyword(s):  
Floral Oil
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