Search results for "Halictidae"

showing 3 items of 3 documents

Small sweat bees (Hymenoptera: Halictidae) as potential major pollinators of melon (Cucumis melo) in the Mediterranean

2016

In the current scenario of a general decline of the honeybee worldwide, studies on the potential of alternative bee species in pollinating cultivated plants are important. Although melon, Cucumis melo, is a crop with great commercial importance, there is very little information on its pollinating fauna in Europe, and none from the southern Mediterranean area. In a locality in central Spain, using both pan-traps and net collections, we found that melon flowers are visited by 31 species of bees spanning four families, though only four were both dominant and constant. These four species belonged to the family Halictidae (sweat bees) and mostly (three species) to the genus Lasioglossum. Five ot…

0106 biological sciencesHalictidaeForage (honey bee)biologyPollinationHymenopterabiology.organism_classificationmedicine.disease_cause010603 evolutionary biology01 natural sciencesLasioglossum010602 entomologyPollinatorInsect SciencePollenBotanymedicineNectarEcology Evolution Behavior and SystematicsEntomological Science
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Dimorphism in inflorescence scent of dioecious wild grapevine

2016

Abstract Wild grapevine ( Vitis vinifera subsp. sylvestris ) is the dioecious ancestral form of grapevine, from which the domesticated cultivars have derived ( V. vinifera subsp. vinifera ). Little is known about the floral scent compounds of wild grapevine that is considered as being partly insect pollinated. The knowledge of volatiles released by male and female inflorescence may contribute to the understanding of the pollination biology of this endangered taxon. Inflorescence scents of male and female individuals were collected by dynamic headspace and analysed by thermal desorption-GC/MS. A total of 17 compounds of C5-branched chain alcohols, aliphatics, aromatics, and terpenoids were i…

0106 biological sciencesHalictidaePollinationmedia_common.quotation_subjectInsectVitaceae010603 evolutionary biology01 natural sciencesBiochemistryPollinatorvolatile organic compoundsBotanyPollinationEcology Evolution Behavior and Systematicsmedia_commonVitis vinifera subspecies sylvestrisbiologyfungifood and beveragesbiology.organism_classificationSexual dimorphismVitaceaeInflorescencepollination Vitaceae Vitis vinifera subspecies sylvestris volatile organic compoundsSettore BIO/03 - Botanica Ambientale E ApplicataLonghorn beetle010606 plant biology & botany
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Essential Oils of Chiliadenus Lopadusanus (Asteraceae)

2013

The essential oils from the leaves and flowers of Chiliadenus lopadusanus growing on Lampedusa Island were obtained by hydrodistillation and analyzed by GC-MS. The major component was camphor (39.4% in the leaves and 24.0% in the flowers), followed in the leaves by torreyol (6.7%), t-cadinol (5.2%) and 1,8-cineole (3.8%), while in the flowers by t-cadinol (15.2%), t-muurolol (5.1%) and torreyol (4.5%). Among the compounds identified, several seem to play a role in antibacterial, antifungal, allelopathic and spasmolytic activity. In addition, several compounds identified in this study seem to influence the attraction of Megachile ( Eutricharaea) apicalis (Megachilidae) and Halictus ( Selado…

PharmacologyHalictidaebiologyHalictusPlant ScienceGeneral MedicineAsteraceaebiology.organism_classificationMegachileCamphorchemistry.chemical_compoundComplementary and alternative medicinechemistryPollinatorDrug DiscoveryBotanyMegachilidaeAllelopathyNatural Product Communications
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