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| Author | Lachenaud, P.; Rossi, V.; Thevenin, J.-M.; Doaré, F. | ||||
| Title | The “Guiana” genetic group: A new source of resistance to cacao (Theobroma cacao L.) black pod rot caused by Phytophthora capsici | Type | Journal Article | ||
| Year | 2015 | Publication | Crop Protection | Abbreviated Journal | Crop Prot. |
| Volume | 67 | Issue | Pages | 91-95 | |
| Keywords | Black pod; Cocoa; French guiana; Phytophthora capsici; Resistance; Phytophthora capsici; Theobroma cacao | ||||
| Abstract | Black pod rot, caused by Stramenopiles of the genus Phytophthora, leads to serious production losses in all cocoa growing zones. In order to reduce the impact of these pests, preference is given to genetic control using resistant varieties, and sources of resistance are actively being sought, particularly in wild cacao trees. Surveys were undertaken in the natural cacao tree populations of south-eastern French Guiana between 1985 and 1995 and an abundant amount of plant material belonging to a particular genetic group, the “Guiana” group, was collected. A great deal of work has shown the merits of this genetic group as a source of resistance to Phytophthora palmivora and megakarya. We describe here the results of a global study to assess the resistance of the 186 clones in the “Guiana” group “core collection” to a Guianese strain of Phytophthora capsici (strain Reg 2-6). This study, which used an efficient methodology (fifteen series of tests on leaf discs and a statistical test adapted to the ordinal nature of the basic data), showed that the “Guiana” genetic group is a major source of resistance to P.capsici. Strain Reg 2-6 proves to be particularly virulent, as the Scavina 6 control, an international reference for resistance to Phytophthora, is not resistant to it. However, 24 clones of the “Guiana” group are, and 92 have proved to be more resistant than Scavina 6, thereby showing the interest of the group in genetically controlling P.capsici.Thus, of the clones in the Guiana group that are more resistant to P.capsici than Scavina 6, some, which are also resistant to P.palmivora and/or Phytophthora megakarya, and also displaying some other notable qualities, could be incorporated into cocoa genetic improvement programmes in countries where P.capsici is rife on cacao trees. | ||||
| Address | CIRAD, UPR BSEF, BP 2572Yaoundé, Cameroon | ||||
| Corporate Author | Thesis | ||||
Publisher  |
Elsevier Ltd | Place of Publication | Editor | ||
| Language | Summary Language | Original Title | |||
| Series Editor | Series Title | Abbreviated Series Title | |||
| Series Volume | Series Issue | Edition | |||
| ISSN | 02612194 (Issn) | ISBN | Medium | ||
| Area | Expedition | Conference | |||
| Notes | Export Date: 12 November 2014; Coden: Crptd; Correspondence Address: Lachenaud, P.; CIRAD, UPR 106, BP 701, France | Approved | no | ||
| Call Number | EcoFoG @ webmaster @ | Serial | 565 | ||
| Permanent link to this record | |||||
| Author | Aili, S.R.; Touchard, A.; Escoubas, P.; Padula, M.P.; Orivel, J.; Dejean, A.; Nicholson, G.M. | ||||
| Title | Diversity of peptide toxins from stinging ant venoms | Type | Journal Article | ||
| Year | 2014 | Publication | Toxicon | Abbreviated Journal | Toxicon |
| Volume | 92 | Issue | Pages | 166-178 | |
| Keywords | Ant venom; Chemotaxonomy; Disulfide linkage; Peptides; Venom biochemistry | ||||
| Abstract | Ants (Hymenoptera: Formicidae) represent a taxonomically diverse group of arthropods comprising nearly 13,000 extant species. Sixteen ant subfamilies have individuals that possess a stinger and use their venom for purposes such as a defence against predators, competitors and microbial pathogens, for predation, as well as for social communication. They exhibit a range of activities including antimicrobial, haemolytic, cytolytic, paralytic, insecticidal and pain-producing pharmacologies. While ant venoms are known to be rich in alkaloids and hydrocarbons, ant venoms rich in peptides are becoming more common, yet remain understudied. Recent advances in mass spectrometry techniques have begun to reveal the true complexity of ant venom peptide composition. In the few venoms explored thus far, most peptide toxins appear to occur as small polycationic linear toxins, with antibacterial properties and insecticidal activity. Unlike other venomous animals, a number of ant venoms also contain a range of homodimeric and heterodimeric peptides with one or two interchain disulfide bonds possessing pore-forming, allergenic and paralytic actions. However, ant venoms seem to have only a small number of monomeric disulfide-linked peptides. The present review details the structure and pharmacology of known ant venom peptide toxins and their potential as a source of novel bioinsecticides and therapeutic agents. | ||||
| Address | Laboratoire Écologie Fonctionnelle et Environnement, Université de Toulouse, 118 Route de NarbonneToulouse, France | ||||
| Corporate Author | Thesis | ||||
| Publisher |
Elsevier Ltd | Place of Publication | Editor | ||
| Language | Summary Language | Original Title | |||
| Series Editor | Series Title | Abbreviated Series Title | |||
| Series Volume | Series Issue | Edition | |||
| ISSN | 00410101 (Issn) | ISBN | Medium | ||
| Area | Expedition | Conference | |||
| Notes | Export Date: 2 December 2014; Coden: Toxia; Correspondence Address: Nicholson, G.M.; Neurotoxin Research Group, School of Medical and Molecular Biosciences, University of Technology SydneyAustralia | Approved | no | ||
| Call Number | EcoFoG @ webmaster @ | Serial | 568 | ||
| Permanent link to this record | |||||
| Author | Cottet, K.; Genta-Jouve, G.; Fromentin, Y.; Odonne, G.; Duplais, C.; Laprévote, O.; Michel, S.; Lallemand, M.-C. | ||||
| Title | Comparative LC-MS-based metabolite profiling of the ancient tropical rainforest tree Symphonia globulifera | Type | Journal Article | ||
| Year | 2014 | Publication | Phytochemistry | Abbreviated Journal | Phytochemistry |
| Volume | 108 | Issue | Pages | 102-108 | |
| Keywords | Kendrick mass defect; Lc-Ms; Plant organs; Symphonia globulifera; Untargeted metabolomics; Symphonia globulifera | ||||
| Abstract | In the last few years, several phytochemical studies have been undertaken on the tropical tree Symphonia globulifera leading to the isolation and characterisation of several compounds exhibiting antiparasitic activities against Plasmodium falciparum, Trypanosoma brucei and Leishmania donovani. The comparative LC-MS based metabolite profiling study conducted on the tree led to the identification of compounds originating from specific tissues. The results showed that renewable organs/tissues can be used as the starting material for the production of polycyclic poly-prenylated-acylphloroglucinols, therefore reducing impacts on biodiversity. This study also underlined the lack of knowledge on the secondary metabolites produced by S. globulifera since only a small number of the total detected features were putatively identified using the database of known compounds for the species. | ||||
| Address | Laboratoire de Chimie et Toxicologie Analytique et Cellulaire, UMR 8638, Université Paris Descartes Sorbonne Paris Cité, 4 Avenue de l'ObservatoireParis, France | ||||
| Corporate Author | Thesis | ||||
| Publisher |
Elsevier Ltd | Place of Publication | Editor | ||
| Language | Summary Language | Original Title | |||
| Series Editor | Series Title | Abbreviated Series Title | |||
| Series Volume | Series Issue | Edition | |||
| ISSN | 00319422 (Issn) | ISBN | Medium | ||
| Area | Expedition | Conference | |||
| Notes | Export Date: 2 December 2014; Coden: Pytca; Correspondence Address: Genta-Jouve, G.; Laboratoire de Pharmacognosie, UMR 8638, Université Paris Descartes Sorbonne Paris Cité, 4 Avenue de l'Observatoire, France | Approved | no | ||
| Call Number | EcoFoG @ webmaster @ | Serial | 569 | ||
| Permanent link to this record | |||||
| Author | Prunier, J.; Maurice, L.; Perez, E.; Gigault, J.; Pierson Wickmann, A.-C.; Davranche, M.; Halle, A.T. | ||||
| Title | Trace metals in polyethylene debris from the North Atlantic subtropical gyre | Type | Journal Article | ||
| Year | 2019 | Publication | Environmental Pollution | Abbreviated Journal | Environ. Pollut. |
| Volume | 245 | Issue | Pages | 371-379 | |
| Keywords | metals'accumulation; Microplastic; Plastic debris; Polyethylene; Polymer | ||||
| Abstract | Plastic pollution in the marine environment poses threats to wildlife and habitats through varied mechanisms, among which are the transport and transfer to the food web of hazardous substances. Still, very little is known about the metal content of plastic debris and about sorption/desorption processes, especially with respect to weathering. In this study, plastic debris collected from the North Atlantic subtropical gyre was analyzed for trace metals; as a comparison, new packaging materials were also analyzed. Both the new items and plastic debris showed very scattered concentrations. The new items contained significant amounts of trace metals introduced as additives, but globally, metal concentrations were higher in the plastic debris. The results provide evidence that enhanced metal concentrations increase with the plastic state of oxidation for some elements, such as As, Ti, Ni, and Cd. Transmission electron microscopy showed the presence of mineral particles on the surface of the plastic debris. This work demonstrates that marine plastic debris carries complex mixtures of heavy metals. Such materials not only behave as a source of metals resulting from intrinsic plastic additives but also are able to concentrate metals from ocean water as mineral nanoparticles or adsorbed species. Plastic debris collected from the North Atlantic subtropical gyre was analyzed for trace metals. Marine plastic debris carry complex mixtures of heavy metals but it is evidence that plastic oxidation favors their adsorption. | ||||
| Address | Univ Rennes, Geosciences, UMR CNRS 6118, bat 15, Campus de Beaulieu, Rennes Cedex, 35042, France | ||||
| Corporate Author | Thesis | ||||
| Publisher |
Elsevier Ltd | Place of Publication | Editor | ||
| Language | Summary Language | Original Title | |||
| Series Editor | Series Title | Abbreviated Series Title | |||
| Series Volume | Series Issue | Edition | |||
| ISSN | 02697491 (Issn) | ISBN | Medium | ||
| Area | Expedition | Conference | |||
| Notes | Export Date: 3 December 2018; Coden: Enpoe; Correspondence Address: Halle, A.T.; Laboratoire des IMRCP, Université de Toulouse, CNRS UMR 5623, Université Toulouse III – Paul Sabatier, 118 route de Narbonne, Cedex 09, France; email: ter-halle@chimie.ups-tlse.fr; References: Al-Sid-Cheikh, M., Pedrot, M., Dia, A., Guenet, H., Vantelon, D., Davranche, M., Gruau, G., Delhaye, T., Interactions between natural organic matter, sulfur, arsenic and iron oxides in re-oxidation compounds within riparian wetlands: NanoSIMS and X-ray adsorption spectroscopy evidences (2015) Sci. Total Environ., 515, pp. 118-128; Anderson, A., Andrady, A., Hidalgo-Ruz, V., Kershaw, P.J., Sources, Fate and Effects of Microplastics in the Marine Environment: a Global Assessment; GESAMP Joint Group of Expertts on the Scientific Aspects of Marine Environmental Protection (2015); Ashton, K., Holmes, L., Turner, A., Association of metals with plastic production pellets in the marine environment (2010) Mar. Pollut. Bull., 60, pp. 2050-2055; Bakir, A., Rowland, S.J., Thompson, R.C., Transport of persistent organic pollutants by microplastics in estuarine conditions (2014) Estuar. Coast Shelf Sci., 140, pp. 14-21; Belzile, N., Devitre, R.R., Tessier, A., Insitu collection of diagenetic iron and manganese oxyhydroxides from natural sediments (1989) Nature, 340, pp. 376-377; Brennecke, D., Duarte, B., Paiva, F., Cacador, I., Canning-Clode, J., Microplastics as vector for heavy metal contamination from the marine environment (2016) Estuar. Coast Shelf Sci., 178, pp. 189-195; Bylan, C., (2003) Developments in Colorants for Plastics, 14, p. 85; Carlton, J.T., Chapman, J.W., Geller, J.B., Miller, J.A., Carlton, D.A., McCuller, M.I., Treneman, N.C., Ruiz, G.M., Tsunami-driven rafting: transoceanic species dispersal and implications for marine biogeography (2017) Science, 357, pp. 1402-1405; Cordeiro, F., Baer, I., Robouch, P., Emteborg, H., C.-G, J., Korsten, B., d. l. C, B., IMEP-34: Heavy Metals in Toys According to EN 71-3:1994 (2012), JCR Luxembourg p 58pp; Eerkes-Medrano, D., Thompson, R.C., Aldridge, D.C., Microplastics in freshwater systems: a review of the emerging threats, identification of knowledge gaps and prioritisation of research needs (2015) Water Res., 75, pp. 63-82; (2004) Emission Scenario Document on Plastic Additives, , OECD Environmental Health and Safety Publications Paris; Engler, R.E., The complex interaction between marine debris and toxic chemicals in the ocean (2012) Environ. Sci. Technol., 46, pp. 12302-12315; Eriksen, M., Mason, S., Wilson, S., Box, C., Zellers, A., Edwards, W., Farley, H., Amato, S., Microplastic pollution in the surface waters of the laurentian great lakes (2013) Mar. Pollut. Bull., 77, pp. 177-182; Fakih, M., Davranche, M., Dia, A., Nowack, B., Petitjean, P., Chatellier, X., Gruau, G., A new tool for in situ monitoring of Fe-mobilization in soils (2008) Appl. Geochem., 23, pp. 3372-3383; Gall, S.C., Thompson, R.C., The impact of debris on marine life (2015) Mar. Pollut. Bull., 92, pp. 170-179; Goldstein, M.C., Carson, H.S., Eriksen, M., Relationship of diversity and habitat area in North Pacific plastic-associated rafting communities (2014) Mar. Biol., 161, pp. 1441-1453; Hansen, E., Nilsson, N.H., Lithner, D., Lassen, C., Hazardous Substances in Plastic Materials, COWI and the Danish Technological Institute on Behalf of Thr Norwegian Climate and Pollution Agency. In Oslo (2010), p 150 pp; (2013) Hazardous Substances in Plastic Materials, , COWI Danish Technological Institute; Hirai, H., Takada, H., Ogata, Y., Yamashita, R., Mizukawa, K., Saha, M., Kwan, C., Ward, M.W., Organic micropollutants in marine plastics debris from the open ocean and remote and urban beaches (2011) Mar. Pollut. Bull., 62, pp. 1683-1692; Holmes, L.A., Turner, A., Thompson, R.C., Adsorption of trace metals to plastic resin pellets in the marine environment (2012) Environ. Pollut., 160, pp. 42-48; Holmes, L.A., Turner, A., Thompson, R.C., Interactions between trace metals and plastic production pellets under estuarine conditions (2014) Mar. Chem., 167, pp. 25-32; Imhof, H.K., Laforsch, C., Wiesheu, A.C., Schmid, J., Anger, P.M., Niessner, R., Ivleva, N.P., Pigments and plastic in limnetic ecosystems: a qualitative and quantitative study on microparticles of different size classes (2016) Water Res., 98, pp. 64-74; Jiao, W.T., Chen, W.P., Chang, A.C., Page, A.L., Environmental risks of trace elements associated with long-term phosphate fertilizers applications: a review (2012) Environ. Pollut., 168, pp. 44-53; Lavers, J.L., Bond, A.L., Ingested plastic as a route for trace metals in laysan albatross (phoebastria immutabilis) and bonin petrel (pterodroma hypoleuca) from midway atoll (2016) Mar. Pollut. Bull., 110, pp. 493-500; Law, K.L., Moret-Ferguson, S.E., Goodwin, D.S., Zettler, E.R., De Force, E., Kukulka, T., Proskurowski, G., Distribution of surface plastic debris in the eastern pacific ocean from an 11-year data set (2014) Environ. Sci. Technol., 48, pp. 4732-4738; Lazzeria, A., Zebarjadb, S.M., Parcellac, M., Cavalierd, K., Rosam, R., Filler toughening of plastics. Part 1-The effect of surface interactions on physico-mechanical properties and rheological behaviour of ultrafine CaCO3/HDPE nanocomposites (2005) Polymer, 46, pp. 827-844; Lithner, D., Larsson, A., Dave, G., Environmental and health hazard ranking and assessment of plastic polymers based on chemical composition (2011) Sci. Total Environ., 409, pp. 3309-3324; Marier, C., Calafut, C., Polypropylene: the Definitive User's Guide and Databook. Norwich NY (1998); Massos, A., Turner, A., Cadmium, lead and bromine in beached microplastics (2017) Environ. Pollut., 227, pp. 139-145; Moret-Ferguson, S., Law, K.L., Proskurowski, G., Murphy, E.K., Peacock, E.E., Reddy, C.M., The size, mass, and composition of plastic debris in the western North Atlantic Ocean (2010) Mar. Pollut. Bull., 60, pp. 1873-1878; Murphy, J., Additives for Plastic Handbook (2003), Elsevier Advanced Technology Oxford, UK; Nziguheba, G., Smolders, E., Inputs of trace elements in agricultural soils via phosphate fertilizers in European countries (2008) Sci. Total Environ., 390, pp. 53-57; Rizzotto, M., Chapter 5 Metal complexes as antimicrobial agents (2012) A Search for Antibacterial Agents, p. 73. , V. Bobbarala; Rochman, C.M., Browne, M.A., Halpern, B.S., Hentschel, B.T., Hoh, E., Karapanagioti, H.K., Rios-Mendoza, L.M., Thompson, R.C., Classify plastic waste as hazardous (2013) Nature, 494, pp. 169-171; Rochman, C.M., Hoh, E., Hentschel, B.T., Kaye, S., Long-term field measurement of sorption of organic contaminants to five types of plastic pellets: implications for plastic marine debris (2013) Environ. Sci. Technol., 47, pp. 1646-1654; Rochman, C.M., Kurobe, T., Flores, I., Teh, S.J., Early warning signs of endocrine disruption in adult fish from the ingestion of polyethylene with and without sorbed chemical pollutants from the marine environment (2014) Sci. 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Bull., 69, pp. 219-222; ter Halle, A., Ladirat, L., Gendre, X., Goudouneche, D., Pusineri, C., Routaboul, C., Tenailleau, C., Perez, E., Understanding the fragmentation pattern of marine plastic debris (2016) Environ. Sci. Technol., 50, pp. 5668-5675; Ter Halle, A., Ladirat, L., Martignac, M., Mingotaud, A.F., Boyron, O., Perez, E., To what extent are microplastics from the open ocean weathered? (2017) Environ. Pollut., 227, pp. 167-174; Turner, A., Heavy metals, metalloids and other hazardous elements in marine plastic litter (2016) Mar. Pollut. Bull., 111, pp. 136-142; Turner, A., Trace elements in fragments of fishing net and other filamentous plastic litter from two beaches in SW England (2017) Environ. Pollut., 224, pp. 722-728; Turner, A., Concentrations and migratabilities of hazardous elements in second-hand children's plastic toys (2018) Environ. Sci. Technol., 52, pp. 3110-3116; Turner, A., Mobilisation kinetics of hazardous elements in marine plastics subject to an avian physiologically-based extraction test (2018) Environ. Pollut., 236, pp. 1020-1026; Turner, A., Solman, K.R., Analysis of the elemental composition of marine litter by field-portable-XRF (2016) Talanta, 159, pp. 262-271; Wang, J.D., Peng, J.P., Tan, Z., Gao, Y.F., Zhan, Z.W., Chen, Q.Q., Cai, L.Q., Microplastics in the surface sediments from the Beijiang River littoral zone: composition, abundance, surface textures and interaction with heavy metals (2017) Chemosphere, 171, pp. 248-258; Wardrop, P., Shimeta, J., Nugegoda, D., Morrison, P.D., Miranda, A., Tang, M., Clarke, B.O., Chemical pollutants sorbed to ingested microbeads from personal care products accumulate in fish (2016) Environ. Sci. Technol., 50, pp. 4037-4044; Wright, S.L., Thompson, R.C., Galloway, T.S., The physical impacts of microplastics on marine organisms: a review (2013) Environ. Pollut., 178, pp. 483-492; Zettler, E.R., Mincer, T.J., Amaral-Zettler, L.A., Life in the “plastisphere”: microbial communities on plastic marine debris (2013) Environ. Sci. Technol., 47, pp. 7137-7146 | Approved | no | ||
| Call Number | EcoFoG @ webmaster @ | Serial | 840 | ||
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| Author | Leroy, C.; Maes, A.Q.; Louisanna, E.; Séjalon-Delmas, N. | ||||
| Title | How significant are endophytic fungi in bromeliad seeds and seedlings? Effects on germination, survival and performance of two epiphytic plant species | Type | Journal Article | ||
| Year | 2019 | Publication | Fungal Ecology | Abbreviated Journal | Fungal Ecol. |
| Volume | 39 | Issue | Pages | 296-306 | |
| Keywords | Aechmea; Bromeliads; Endophytic fungi; Fusarium spp.; Germination; Survival; Trichoderma spp.; Vertical transmission | ||||
| Abstract | In bromeliads, nothing is known about the associations fungi form with seeds and seedling roots. We investigated whether fungal associations occur in the seeds and seedling roots of two epiphytic Aechmea species, and we explored whether substrate and fungal associations contribute to seed germination, and seedling survival and performance after the first month of growth. We found a total of 21 genera and 77 species of endophytic fungi in the seeds and seedlings for both Aechmea species by Illumina MiSeq sequencing. The fungal associations in seeds were found in the majority of corresponding seedlings, suggesting that fungi are transmitted vertically. Substrate quality modulated the germination and growth of seedlings, and beneficial endophytic fungi were not particularly crucial for germination but contributed positively to survival and growth. Overall, this study provides the first evidence of an endophytic fungal community in both the seeds and seedlings of two epiphytic bromeliads species that subsequently benefit plant growth. © 2019 Elsevier Ltd and British Mycological Society | ||||
| Address | INRA, UMR Ecologie des Forêts de Guyane (AgroParisTech, CIRAD, CNRS, INRA, Université de Guyane, Université des Antilles), Campus Agronomique, BP 316, Kourou cedex, F-97379, France | ||||
| Corporate Author | Thesis | ||||
| Publisher |
Elsevier Ltd | Place of Publication | Editor | ||
| Language | Summary Language | Original Title | |||
| Series Editor | Series Title | Abbreviated Series Title | |||
| Series Volume | Series Issue | Edition | |||
| ISSN | 17545048 (Issn) | ISBN | Medium | ||
| Area | Expedition | Conference | |||
| Notes | Approved | no | |||
| Call Number | EcoFoG @ webmaster @ | Serial | 867 | ||
| Permanent link to this record | |||||
| Author | Van Langenhove, L.; Janssens, I.A.; Verryckt, L.; Brechet, L.; Hartley, I.P.; Stahl, C.; Courtois, E.; Urbina, I.; Grau, O.; Sardans, J.; Peguero, G.; Gargallo-Garriga, A.; Peñuelas, J.; Vicca, S. | ||||
| Title | Rapid root assimilation of added phosphorus in a lowland tropical rainforest of French Guiana | Type | Journal Article | ||
| Year | 2020 | Publication | Soil Biology and Biochemistry | Abbreviated Journal | Soil Biol. Biochem. |
| Volume | 140 | Issue | 107646 | Pages | |
| Keywords | Fertilization; Nitrogen; Phosphorus; Plant root simulator probes; Root system; Tropical forest; Nitrogen; Nitrogen fertilizers; Phosphorus; Plants (botany); Soils; Tropics; Fertilization; Mycorrhizal fungus; N and P fertilizer; P availabilities; Plant root simulators; Root system; Tropical forest; Tropical rain forest; Forestry; Fungi | ||||
| Abstract | Tree growth on weathered soils in lowland tropical forests is limited by low phosphorous (P) availability. However, nutrient manupulation experiments do not always increase the P content in these trees, which raises the question whether trees are taking up added P. In French Guianese lowland rainforest, we measured changes in nitrogen (N) and P availability before and up to two months after N and P fertilizer addition, in soils with intact root systems and in soils where roots and mycorrhizal fungi were excluded by root exclusion cylinders. When the root system was excluded, P addition increased P availability to a much greater extent and for a longer time than in soils with an intact root system. Soil N dynamics were unaffected by root presence/absence. These results indicate rapid P uptake, but not N uptake, by tree roots, suggesting a very effective P acquisition process in these lowland rainforests. | ||||
| Address | Global Change Research Institute, Czech Academy of Sciences, Czech Republic | ||||
| Corporate Author | Thesis | ||||
| Publisher |
Elsevier Ltd | Place of Publication | Editor | ||
| Language | Summary Language | Original Title | |||
| Series Editor | Series Title | Abbreviated Series Title | |||
| Series Volume | Series Issue | Edition | |||
| ISSN | 00380717 (Issn) | ISBN | Medium | ||
| Area | Expedition | Conference | |||
| Notes | Export Date: 19 November 2019; Coden: Sbioa; Correspondence Address: Van Langenhove, L.; Centre of Excellence PLECO (Plants and Ecosystems), Department of Biology, University of Antwerp, Wilrijk, Belgium; email: leandro.vanlangenhove@uantwerpen.be | Approved | no | ||
| Call Number | EcoFoG @ webmaster @ | Serial | 897 | ||
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| Author | Do, N.A.; Dias, D.; Zhang, Z.; Huang, X.; Nguyen, T.T.; Pham, V.V.; Nait-Rabah, O. | ||||
| Title | Study on the behavior of squared and sub-rectangular tunnels using the Hyperstatic Reaction Method | Type | Journal Article | ||
| Year | 2020 | Publication | Transportation Geotechnics | Abbreviated Journal | Transp. Geotech. |
| Volume | 22 | Issue | 100321 | Pages | |
| Keywords | Finite element method; Lining; Squared shape; Sub-rectangular shape; Tunnel; efficiency measurement; finite element method; numerical model; transportation development; transportation planning; tunnel design; tunnel lining | ||||
| Abstract | |||||
| Address | Saint-Petersburg Mining University, Russian Federation | ||||
| Corporate Author | Thesis | ||||
| Publisher |
Elsevier Ltd | Place of Publication | Editor | ||
| Language | Summary Language | Original Title | |||
| Series Editor | Series Title | Abbreviated Series Title | |||
| Series Volume | Series Issue | Edition | |||
| ISSN | 22143912 (Issn) | ISBN | Medium | ||
| Area | Expedition | Conference | |||
| Notes | Approved | no | |||
| Call Number | EcoFoG @ webmaster @ | Serial | 915 | ||
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| Author | Duplais, C.; Papon, N.; Courdavault, V. | ||||
| Title | Tracking the Origin and Evolution of Plant Metabolites | Type | Journal Article | ||
| Year | 2020 | Publication | Trends in Plant Science | Abbreviated Journal | Trends Plant Sci. |
| Volume | 25 | Issue | 12 | Pages | 1182-1184 |
| Keywords | enzyme evolution; iridoids; Lamiaceae; nepetalactone; plant metabolites | ||||
| Abstract | Iridoids are monoterpenes that are produced by various plants as chemical defense molecules. Lichman et al. recently described the timeline of molecular events that underpin the re-emergence of iridoid biosynthesis in an independent lineage of aromatic plants (catnip). This study represents a benchmark for studying enzyme and metabolite evolution in different clades across the tree of life. © 2020 Elsevier Ltd | ||||
| Address | Biomolécules et Biotechnologies Végétales (BBV) EA 2106, Université de Tours, Tours, France | ||||
| Corporate Author | Thesis | ||||
| Publisher |
Elsevier Ltd | Place of Publication | Editor | ||
| Language | Summary Language | Original Title | |||
| Series Editor | Series Title | Abbreviated Series Title | |||
| Series Volume | Series Issue | Edition | |||
| ISSN | 13601385 (Issn) | ISBN | Medium | ||
| Area | Expedition | Conference | |||
| Notes | Approved | no | |||
| Call Number | EcoFoG @ webmaster @ | Serial | 937 | ||
| Permanent link to this record | |||||
| Author | Dejean, A.; Azémar, F.; Roux, O. | ||||
| Title | An invasive ant species able to counterattack marabunta raids | Type | Journal Article | ||
| Year | 2014 | Publication | Comptes Rendus Biologies | Abbreviated Journal | C. R. Biol. |
| Volume | 337 | Issue | 7-8 | Pages | 475-479 |
| Keywords | Antipredation; Army ants; Colony mate recognition; Eciton; Pheidole; aggression; ant; article; bioassay; Eciton burchellii; Eciton hamatum; emulsion; insect society; mass fragmentography; Neotropics; nonhuman; Pheidole megacephala | ||||
| Abstract | In the Neotropics where it was introduced, the invasive ant Pheidole megacephala counterattacked raids by the army ants Eciton burchellii or E. hamatum. The Eciton workers that returned to their bivouac were attacked and spread-eagled and most of them killed by their outgoing colony mates. Little by little the zone where returning and outgoing Eciton workers encountered one another moved away from the Pheidole nest which was no longer attacked, so that most of the colony was spared. Using a water-based technique rounded out by bioassays, we show that Pheidole compounds were transferred onto the Eciton cuticle during the counterattacks, so that outgoing workers do not recognize returning colony mates, likely perceived as potential prey. Because P. megacephala is an introduced African species, this kind of protection, which cannot be the result of coevolutive processes, corresponds to a kind of by-product due to its aggressiveness during colony defence. © 2014 Académie des sciences. | ||||
| Address | IRD, MIVEGEC (IRD 224 CNRS 5290-UM1-UM2) Équipe BEES, 911, avenue Agropolis, 34394 Montpellier cedex 5, France | ||||
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Elsevier Masson SAS | Place of Publication | Editor | ||
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| ISSN | 17683238 (Issn) | ISBN | Medium | ||
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| Notes | Export Date: 1 September 2014; Coden: Crboc; Correspondence Address: Dejean, A.; CNRS UMR 8172, Écologie des Forêts de Guyane, BP 316, 97379 Kourou cedex, France; email: alain.dejean@wanadoo.fr | Approved | no | ||
| Call Number | EcoFoG @ webmaster @ | Serial | 557 | ||
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| Author | Dejean, A.; Corbara, B. | ||||
| Title | Reactions by army ant workers to nestmates having had contact with sympatric ant species | Type | Journal Article | ||
| Year | 2014 | Publication | Comptes Rendus Biologies | Abbreviated Journal | C. R. Biol. |
| Volume | 337 | Issue | 11 | Pages | 642-645 |
| Keywords | Army ants Antipredation Colony-mate recognition Eciton Transferring cuticular compounds; Eciton; Formicidae | ||||
| Abstract | It was recently shown that Pheidole megacephala colonies (an invasive species originating from Africa) counterattack when raided by the army ant, Eciton burchellii. The subsequent contact permits Pheidole cuticular compounds (that constitute the “colony odour”) to be transferred onto the raiding Eciton, which are then not recognised by their colony-mates and killed. Using a simple method for transferring cuticular compounds, we tested if this phenomenon occurs for Neotropical ants. Eciton workers rubbed with ants from four sympatric species were released among their colony-mates. Individuals rubbed with Solenopsis saevissima or Camponotus blandus workers were attacked, but not those rubbed with Atta sexdens, Pheidole fallax or with colony-mates (control lot). So, the chemicals of certain sympatric ant species, but not others, trigger intra-colonial aggressiveness in Eciton. We conclude that prey-ant chemicals might have played a role in the evolution of army ant predatory behaviour, likely influencing prey specialization in certain cases. | ||||
| Address | Clermont Université, Université Blaise-Pascal, LMGE, BP 10448Clermont-Ferrand, France | ||||
| Corporate Author | Thesis | ||||
| Publisher |
Elsevier Masson SAS | Place of Publication | Editor | ||
| Language | Summary Language | Original Title | |||
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| ISSN | 16310691 (Issn) | ISBN | Medium | ||
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| Notes | Export Date: 12 November 2014; Coden: Crboc; Correspondence Address: Dejean, A.; CNRS, É Cologie des Forêts de Guyane, UMR-CNRS 8172, BP 316, France | Approved | no | ||
| Call Number | EcoFoG @ webmaster @ | Serial | 566 | ||
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