Marc Gibernau

Marc Gibernau
French National Centre for Scientific Research | CNRS · Laboratoire des Sciences pour l'Environnement (SPE - UMR 6134)

PhD

About

159
Publications
78,624
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Introduction
I'm studying the adaptations & evolution of plant - pollinator interactions using Araceae as the plant family model. I'm using a multidisciplinary approach combining evolutionary ecology, botany, entomology, morphology, histology, behavioral ecology, molecular biology and chemical ecology.
Additional affiliations
September 2014 - present
Université de Corse Pascal Paoli
Position
  • CNRS Researcher
September 2009 - August 2014
Université des Antilles
Position
  • CNRS Researcher
January 2002 - September 2009
Paul Sabatier University - Toulouse III
Position
  • CNRS

Publications

Publications (159)
Article
Full-text available
Insect-pollinated plants often release complex mixtures of floral scents to attract their pollinators. Yet scent compounds eliciting physiological or behavioural responses in pollinators have only been identified in few plant species. The sapromyiophilous aroid Arum maculatum releases a highly diverse dung-like scent with overall more than 300 diff...
Article
Among the 44 European Psychoda species identified to date, we expected to observe in Corsica species with large distribution ranges and/or that are frequent in adjacent territories (i.e. south mainland France, mainland Italy, and Sardinia). Each studied specimen was morphologically identified and then barcoded using cytochrome c oxidase subunit I (...
Article
Citrus phylogeny is currently based on genome analysis using molecular markers and sequencing. The 7 pure genetic groups that gave rise to all cultivated citrus underlie the diversity of citrus accessions originating from Asia. However, there are wild citrus forms whose phylogenetic position is unknown, such as mountain citron (Citrus halimii B.C....
Article
Full-text available
Geographical variation in abundance and composition of pollinator assemblages may result in variable selection pressures among plant populations and drive plant diversification. However, there is limited knowledge on whether differences in local visitor and pollinator assemblages are the result of site-specific strategies of plants to interact with...
Article
Citrus phylogeny is currently based on genome analysis using molecular markers and sequencing. The 7 pure genetic groups that gave rise to all cultivated citrus underlie the diversity of citrus accessions originating from Asia. However, there are wild citrus forms whose phylogenetic position is unknown, such as mountain citron (Citrus halimii B.C....
Article
Full-text available
Flowering plants emit complex bouquets of volatile organic compounds (VOCs) to mediate interactions with their pollinators. These bouquets are undoubtedly influenced by pollinator‐mediated selection, particularly in deceptively‐pollinated species that rely on chemical mimicry. However, many uncertainties remain regarding how spatially and temporall...
Article
Full-text available
Floral scent is a key mediator in plant-pollinator interactions. However, little is known to what extent intraspecific scent variation is shaped by phenotypic selection, with no information yet in deceptive plants. In this study, we collected inflorescence scent and fruit set of the deceptive moth fly-pollinated Arum maculatum L. (Araceae) from six...
Article
Full-text available
The Papeda Citrus subgenus includes several species belonging to two genetically distinct groups, containing mostly little-exploited wild forms of citrus. However, little is known about the potentially large and novel aromatic diversity contained in these wild citruses. In this study, we characterized and compared the essential oils obtained from p...
Preprint
Full-text available
Floral scent is a key mediator in plant-pollinator interactions; however, little is known to what extent intraspecific scent variation is shaped by phenotypic selection, with no information yet in deceptive plants. We recorded 291 scent compounds in deceptive moth fly-pollinated Arum maculatum from various populations north vs. south of the Alps, t...
Article
In French Guiana, Philodendron fragrantissimum (Hook.) G.Don was specifically pollinated by a single species of night-active cyclocephaline scarab, Cyclocephala simulatrix Höhne. Its inflorescences exhibited short-lasting anthesis (~30 h) and characteristic floral traits such as floral thermogenesis, edible/nutritious floral tissues, and profuse fl...
Article
The pollination ecology of Symplocarpus foetidus (L.) W. Salisbury was studied in a seasonally forested flooded bog in Québec (Canada) in 2008 and 2009. The protogynous anthesis duration ranged from 15 to 20 days with, chronologically, a female phase of about 5 days, a bisexual phase of 2 days, and a male phase of 9 days. The spadix temperature dif...
Article
The meadow spittlebug, Philaenus spumarius (L.) (Hemiptera: Aphrophoridae), is the main vector in Europe of the recently detected plant pathogen bacterium Xylella fastidiosa Wells et al . (Xanthomonadales: Xanthomonadaceae). While the ecology of continental populations is well documented, nothing is known about the insular populations of P. spumari...
Article
Premise: Floral rewards are essential in understanding floral function and evolution of the relationships between flowers and pollinators. Whether sugars are present in stigmatic exudates in Anthurium and whether it has floral nectaries have remained controversial because of the scarcity of structural studies. To solve these questions, we investig...
Article
Spadix temperature was measured in Schismatoglottis ahmadii, S. lowiae, S. sp. nov., and S. wallichii. The anthesis of S. lowiae, S. sp. nov., and S. wallichii started just after dawn but in S. ahmadii, it began two hours later. Spadix temperatures of the four species increased at the beginning of each of the two successive flowering mornings, corr...
Preprint
Full-text available
Floral odor is a complex trait that mediates many biotic interactions, including pollination. While high intraspecific floral odor variation appears to be common, the ecological and evolutionary drivers of this variation are often unclear. Here, we investigated the influence of spatially and temporally heterogeneous pollinator communities on floral...
Article
The cosmetic and fragrance industry largely exploits citrus essential oils (EOs) because of their aromatic properties. EO compositions are complex and differ between fruit pericarp (PEO) and leaf (LEO). Citrus fruit grow in many countries under very different climates. Seventeen citrus cultivars were selected and their similarities between the two...
Article
Hemorrhoids become pathological when swollen or inflamed. They can be very painful and occasionally cause serious anemia as they often break and hardly heal. Orthodox medicine usually treats hemorrhoids through surgery combined with medication containing the flavonoid diosmin. Our previous ethnobotanical and ethnopharmacological research in Bulgari...
Article
Full-text available
Low temperatures during winter are one of the main constraints for citrus crop. Polyploid rootstocks can be used for improving tolerance to abiotic stresses, such as cold stress. Because the produced fruit are seedless, using triploid scions is one of the most promising approaches to satisfy consumer expectations. In this study, we evaluated how th...
Article
Cymbopogon schoenanthus (L.) Sprengel (Poaceae) is an aromatic plant whose aerial parts and rhizome produced an essential oil with pleasant odor. A chemical variability has been observed depending of the countries where the plant grows wild, including Algeria. The chemical compositions of 24 oil samples isolated from plants harvested in Central Alg...
Article
Full-text available
In this study, the chemical variation of the essential oils of the endemic species Origanum elongatum has been studied in its biogeographical context. Essential oils of 168 individual plants collected from 30 populations growing wild in two Moroccan mountains: Rif and Middle Atlas, were analyzed by GC-FID (Gas Chromatography with Flame Ionization D...
Article
During a one-year survey of the Auchenorrhyncha fauna in a maquis habitat of the Ajaccio region (Corsica), 37 species were listed including three alien species recorded in Europe in the last decades. The standard 658 bp mitochondrial COI barcode was obtained for 32 species, including 14 species never previously barcoded. Neighbor-joining analyses c...
Article
Oregano herbs and essential oils are considered of great interest for their medicinal virtues as well as for their culinary properties. The present investigation aims to study the chemical diversity of the essential oils (EO) of a rare Origanum species (O. grosii) endemic to the North-West of Morocco based on a large sample size (68 individual plan...
Article
Full-text available
Myrtus communis L. is a shrub growing wild in most countries all around the Mediterranean Sea and myrtle leaf oil is useful in the perfumery and pharmaceutical industries. Nowadays, “chemotyped” essential oils are more and more appreciated. Myrtle oil from eastern and central-north Algeria belong to the “α-pinene-cineole” chemotype. In contrast, Mo...
Article
Full-text available
This paper presents an exhaustive review of the current knowledge on pollination of Araceae genera with bisexual flowers. All available studies on floral morphology, flowering sequence, floral scent, floral thermogenesis, floral visitors, and pollinators were carefully examined, with emphasis on the species-rich genera Anthurium Schott, Monstera Ad...
Article
Premise of research. Variation in floral traits is mainly attributed to variations in the abundance or taxonomic composition of the pollinator assemblage. The diversity and abundance of insect pollinators decrease with elevation, which might modify the allocation patterns of floral traits in plants (i.e., attraction or rewards) at high elevation to...
Article
The neotropical genus Anthurium has long been recognized as one of the "megagenera" of flowering plants (~1,700 sp), in addition to claiming the bulk of diversity (~25%) in its family, the Araceae. Despite this vast and beguiling array of morphologic diversity, observations on the biotic interactions that Anthurium participate with other living org...
Article
In many Araceae both scent and heat production are known to temporally vary throughout anthesis, and in several species strong scents are released for pollinator attraction when thermogenesis is also strong. However, it is not known whether the temporal patterns of both scent emission and temperature are strictly synchronous and, for example, reach...
Article
The chemical composition of 93 oils amples from the aerial parts of Pituranthos scoparius,harvested in three regions of Algeria, was investigated by GC(FID), GC/MS and ¹³C‐NMR. Monoterpene hydrocarbons were dominating in association with phenylpropanoids and a chemical variability was found highlighting three clusters. The composition of group I (3...
Article
Full-text available
The aim of this study is to test the potential of natural resources exploitation of Arum maculatum L. a promising plant for treatment against haemorrhoids. Our surveys indicated that the plant is a common woodland species in Bulgaria but with lowabundances, uneven distribution, and that the traditional remedial part, the rhizome, possesses a low we...
Article
Field studies integrating pollination investigations with an assessment of floral scent composition and thermogenesis in tropical aroids are rather few. Thus, this study aimed to investigate the pollination biology of nine species belonging to Schismatoglottis Calyptrata Complex Clade. The flowering mechanism, visiting insect activities, reproducti...
Poster
Full-text available
Arum: chemistry, bioactivities, and application as a cure for hemorrhoids. Ekaterina Kozuharova1 Adam Matkowski2, Dorota Woźniak3, Zheko Naychov3, Marc Gibernau4, Georgy Momekov5, Vladimir Kochmarov6, Atanas G. Atanasov7,8,9 1MU-Sofia, Department of Pharmacognosy, Faculty of Pharmacy, Dunav 2, Sofia 1000, Bulgaria. 2Medical University of Wroclaw, D...
Article
Full-text available
Observations on the pollination biology of the genus Anthurium are scant in comparison to other aroid genera despite comprising nearly 33% of all aroid species. Here we report two independent observations of lepidopteran visitors in two species of Anthurium. In Costa Rica, two different species of fruit-piercing moths (Erebidae) were observed visit...
Article
Full-text available
Leaf and root essential oils of two closely related but ecologically distant Philodendron species were extracted in natural conditions in French Guyana and analysed by GC-MS to (i) describe the blends of Volatile Organic Compounds produced by those species and (ii) analyse species and environment-based variations in extracts composition. A total of...
Article
Full-text available
The aim of this survey was to determine the chemical composition of essential oils (EO) of five conifers acclimated in Corsica by GC(RI), GC–MS and ¹³C NMR. L. decidua needle and wood EOs contained as majors components: α- and β-pinenes, germacrene D (needles) and bornyl acetate (wood). The EOs of needles, wood and cones of P. menziesii were charac...
Article
Full-text available
The monospecific genus Ambrosina is represented by Ambrosina bassii, an endemic species of western-central Mediterranean mainly studied in Sicily and Corsica. The objectives of this study were to establish the distribution of this species and to determine its habitat and ecology in Tunisia. Moreover, the infraspecific diversity from recent and old...
Article
Full-text available
This update on aroid pollinators or inflorescence-visitors adds information on 32 genera (and 60 species). Of these, 10 aroid genera and about 36 species are newly documented or revisited under new generic names. In summary, currently available data on the subject now sums up to approximately 200 aroid species across 67 genera. An ever increasing n...
Article
The composition of oil samples isolated from needles of Pinus halepensis growing in three locations in Corsica (Saleccia, Capo di Feno, and Tre Padule) has been investigated by combination of chromatographic (GC with retention indices) and spectroscopic (MS and 13C-NMR) techniques. In total, 35 compounds that accounted for 77 - 100% of the whole co...
Article
Full-text available
The composition of oil samples isolated from needles of Pinus halepensis growing in three locations in Corsica (Saleccia, Capo di Feno and Tre Padule) has been investigated by combination of chromatographic (GC with retention indices) and spectroscopic (MS, (13) C-NMR) techniques. In total, 35 compounds that accounted for 77-100% of the whole compo...
Article
Full-text available
Hybridisation is common in plants and can affect the genetic diversity and ecology of sympatric parental populations. Hybrids may resemble the parental species in their ecology, leading to competition and/or gene introgression; alternatively, they may diverge from the parental phenotypes, possibly leading to the colonisation of new ecological niche...
Article
Full-text available
In this study, the flowering mechanisms and pollination strategies of seven species of the highly diverse genus Homalomena (Araceae) were investigated in native populations of West Sarawak, Borneo. The floral scent compositions were also recorded for six of these species. The selected taxa belong to three out of four complexes of the section Cyrtoc...
Book
Full-text available
La famille des Aracées comprend 118 genres et 3 800 espèces de plantes tropicales. Elle représente la 13e famille la plus riche au monde. Le présent ouvrage est consacré aux Aracées de Guyane française, où la famille est largement représentée avec 21 genres et 122 espèces, dont un grand nombre d’échantillons sont déposés à l’Herbier de Guyane. L’or...
Article
Full-text available
La pollinisation des Aracées est un sujet passion-nant de botanique. Après nous avoir présenté dans les précédents numéros de Jardins de France des « histoires d'amour » et des « histoires d'at-trape-nigauds », Marc Gibernau et Angélique Quilichini nous dévoilent des « histoires chaleu-reuses » de ces plantes… — LA THerMOgeNÈSe — La thermogenèse es...
Article
Full-text available
The reproductive ecology of two species of Dieffenbachia (D. seguine [Jacq.] Schott and D. paludicola N.E. Br. ex Gleason) was studied at the Nouragues field station research in French Guiana. As in other known Dieffenbachia, the two studied species presented the classical cyclocephaline (dynastine scarab beetle) pollination system: Nocturnal anthe...
Article
Full-text available
La famiLLe des aracées, petite présentation botanique — Les Aracées représentent une famille de plantes monoco-tylédones de près de 3 800 espèces réparties dans au moins 118 genres. Elles sont principalement tropicales mais aussi représentée en milieux tempérés. Le feuillage souvent luxuriant et des inflorescences colorées en font des plantes coura...
Chapter
Full-text available
Identification sheet of the Araceae Lysichiton americanus (in French).
Article
Full-text available
The pollination success of the dead horse arum, Helicodiceros muscivorus, was studied in one Corsican population. This aroid species is pollinated by deception, attracting blowflies by mimicking the floral volatiles emitted by mammal cadavers. The reproductive individuals were taller and larger than non-reproductive ones, indicating that the plant...
Article
Full-text available
Staining and histochemistry of Volatile Organic Compounds (VOCs) were performed at different inflorescence developmental stages on nine aroid species; one temperate, Arum italicum and eight tropical from the genera Caladium, Dieffenbachia and Philodendron. Moreover, a qualitative and quantitative analysis of VOCs constituting the scent of A. italic...
Data
Optical micrographies of hand-made sections
Article
Full-text available
Most plant/pollinator interactions are mutualistic, involving rewards provided by flowers or inflorescences to pollinators. Antagonistic plant/pollinator interactions, in which flowers offer no rewards, are rare and concentrated in a few families including Araceae. In the latter, they involve trapping of pollinators, which are released loaded with...
Article
Full-text available
Interactions between entomophilous plants and their pollinators are one of the major factors shaping the evolution of floral features. As species are distributed in more or less connected populations, they have evolved in a geographical mosaic of co-evolution were the outcome of the plant–pollinator interaction is likely to vary as a result of loca...
Article
Full-text available
The strongly fragrant thermogenic inflorescences of Taccarum ulei (Araceae) are highly attractive to night-active scarab beetles of Cyclocephala celata and C. cearae (Scarabaeidae, Cyclocephalini), which are effective pollinators of plants in the wild in northeastern Brazil. GC-MS analysis of headspace floral scent samples of T. ulei established th...
Article
Full-text available
Taccarum ulei (Araceae, Spathicarpeae) is a seasonal geophytic aroid, native to north-eastern Brazil, that flowers during two months of the rainy season. Patterns of floral thermogenesis, pollination biology, and floral traits associated with pollination syndromes were studied and compared with those of other Araceae. Two species of cyclocephaline...