Krameria tomentosa oil flowers and their pollinators: Bees specialized on trichome elaiophores exploit its epithelial oil glands

Carneiro, Liedson Tavares; Aguiar, Antonio J. C.; Martins, Celso Feitosa; Machado, Isabel Cristina; Alves-dos-Santos, Isabel

doi:10.1016/j.flora.2015.06.002

Cited by 17 publications

(4 citation statements)

References 33 publications

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“…Centris bees are considered the most frequent visitors of Krameria flowers (Simpson et al 1977;Gimenes & Lobão 2006;Carneiro et al 2015;Tab. 1).…”

Section: Krawmeriaceaementioning

confidence: 99%

“…1). Female bees collect the oil from the elaiophores with their pairs of front and middle legs and after they transfer it to their hind legs (Simpson et al 1977;Gimenes & Lobão 2006;Carneiro et al 2015). While collecting the oil, these bees often contact the reproductive structures, being considered effective pollinators (Simpson et al 1977;Gimenes & Lobão 2006;Carneiro et al 2015).…”

Section: Krawmeriaceaementioning

confidence: 99%

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Elaiophores: their taxonomic distribution, morphology and functions

Possobom

Machado

2017

Acta Bot. Bras.

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Elaiophores are fl oral glands that secrete non-volatile oils as a reward for their pollinators. Th eir secretions mediate a specialized interaction between oil-producing plants and a few species of oil-collecting bees -Apidae and Melittidae. Th e present review focuses on the morphological and functional aspects of these secretory structures. We also provide information on their chemistry and pollination ecology. Our survey is organized taxonomically among the plant families for which elaiophore occurrence has been confi rmed -for the monocots, Iridaceae and Orchidaceae, and for the eudicots, Calceolariaceae, Cucurbitaceae, Krameriaceae, Malpighiaceae, Plantaginaceae, Primulaceae, Scrophulariaceae, Solanaceae and Stilbaceae. Most oil fl owers are zygomorphic, bisexual, nectarless and present their elaiophores on the protective whorls or on the androecium. Trichomal elaiophores are reported in all of these families except Krameriaceae and Malpighiaceae, and they vary in the density and morphology of the trichomes. Epithelial elaiophores occur in some monocot representatives and in Krameriaceae and Malpighiaceae, and are similar among species. An intermediate type of elaiophore is reported in some species of Orchidaceae. Regardless of elaiophore type, these glands have similar subcellular features and secretion-release mechanisms. Finally, we note the dearth of information on elaiophore ultrastructure and functioning for several plant families.

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“…Centris bees are considered the most frequent visitors of Krameria flowers (Simpson et al 1977;Gimenes & Lobão 2006;Carneiro et al 2015;Tab. 1).…”

Section: Krawmeriaceaementioning

confidence: 99%

Section: Krawmeriaceaementioning

confidence: 99%

Elaiophores: their taxonomic distribution, morphology and functions

Possobom

Machado

2017

Acta Bot. Bras.

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“…Such flowers are blue, yellow in color or reflect UV light and produce lots of nectar and pollen grains. Carneiro et al [7] reported of oil gathering bees on flowers containing elaiophores or oil secreting bodies.…”

Section: Melittophilymentioning

confidence: 99%

Introductory Chapter: Pollination

Mangena¹,

Mokwala²

2018

Pollination in Plants

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“…Most studies related to the interaction between oil-bees and oil-flowers were per-formed from the scope of the oil-producing plant species. Some of them focused mainly on variation of floral traits according to their pollinators, while others explored phenotypic variation, pollinators assemblage composition and the influence of abiotic factors on floral phenotype from a geographic perspective (Cosacov et al 2008;Nattero et al 2010;Cosacov et al 2013;Giannini et al 2013;Ferreiro et al 2015Ferreiro et al , 2017Carneiro et al 2015;Espíndola and Pliscoff 2019;Maubecin 2019). However, despite those approaches, the ecology and interactions of many oil-bee species remain unknown, and in particular, little is known about the specialisation in pollen collection and phenotypic variation in this singular group of bees.…”

Section: Introductionmentioning

confidence: 99%

Specialisation in pollen collection, pollination interactions and phenotypic variation of the oil-collecting bee Chalepogenus cocuccii

2020

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Bee pollen gathering from a few related plant species is a specialisation known as oligolecty. Although it is an extended phenomenon, it has been scarcely explored in oil-collecting bees. At the geographic level, there is little information about oligolecty persistence and also about phenotypic variation of bees related with abiotic factors. We studied the pollen collection specialisation of the oil-collecting bee Chalepogenus cocuccii , its pollination interactions and phenotypic variation across its distribution range, by analyses of pollen loads, field observations and morphometric measurements. Observations and pollen analyses showed that across its distribution range, C. cocuccii preferred Nierembergia flowers not only for oil but also for pollen. We found two beemorphotypes, though phenotypic variation was not related to abiotic variables. We postulate that C. cocuccii is a narrowly oligolectic species, phenotypically and ecologically specialised in Nierembergia.

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Krameria tomentosa oil flowers and their pollinators: Bees specialized on trichome elaiophores exploit its epithelial oil glands

Cited by 17 publications

References 33 publications

Elaiophores: their taxonomic distribution, morphology and functions

Elaiophores: their taxonomic distribution, morphology and functions

Introductory Chapter: Pollination

Specialisation in pollen collection, pollination interactions and phenotypic variation of the oil-collecting bee Chalepogenus cocuccii

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