| Records |
| Author |
Talaga, S.; Delabie, J.H.C.; Dezerald, O.; Salas-Lopez, A.; Petitclerc, F.; Leroy, C.; Herault, B.; Céréghino, R.; Dejean, A. |
| Title |
A bromeliad species reveals invasive ant presence in urban areas of French Guiana |
Type |
Journal Article |
| Year |
2015 |
Publication |
Ecological Indicators |
Abbreviated Journal |
Ecological Indicators |
| Volume |
58 |
Issue |
|
Pages |
1-7 |
| Keywords |
Aechmea aquilega; Bioindicators; Non-specific ant-plant relationships; Surrogacy; Tank bromeliads; Urban ecology |
| Abstract |
Tank bromeliads, frequently associated with ants, are considered 'biodiversity amplifiers' for both aquatic and terrestrial organisms, and thus have a high ecological value. The focal species of this study, Aechmea aquilega, sheltered the colonies of 12 ant species in a Guianese rural habitat where Odontomachus haematodus, associated with 60% of these plants, was the most frequent. Unexpectedly, the ant species richness was higher in a compared urban habitat with 21 species, but two synanthropic and four invasive ants were noted among them. Consequently, we conducted baiting surveys (on the ground, on trees and on trees bearing A. aquilega) as well as complementary surveys using different sampling modes in urban areas to test if A. aquilega is a surrogate revealing the presence of certain invasive ants. During the baiting survey, we recorded four Neotropical and eight introduced invasive ants out of a total of 69 species. Of these 12 invasive species, five were noted by baiting A. aquilega (including two only noted in this way). A bootstrap simulation permitted us to conclude that A. aquilega significantly concentrates certain species of invasive ants. This was confirmed by complementary surveys, where we did not record further species. We conclude that baiting on trees bearing large epiphytes in human-modified, Neotropical areas is a relevant complement to the early detection of invasive ants. © 2015 Elsevier Ltd. All rights reserved. |
| Address |
CNRS Ecolab (UMR-CNRS 5245), 118 Route de Narbonne, Toulouse, France |
| Corporate Author |
|
Thesis |
|
| Publisher |
|
Place of Publication |
|
Editor |
|
| Language |
|
Summary Language |
|
Original Title |
|
| Series Editor |
|
Series Title |
|
Abbreviated Series Title |
|
| Series Volume |
|
Series Issue |
|
Edition |
|
| ISSN |
|
ISBN |
|
Medium |
|
| Area |
|
Expedition |
|
Conference |
|
Notes  |
Export Date: 23 June 2015 |
Approved |
no |
| Call Number |
EcoFoG @ webmaster @ |
Serial |
607 |
| Permanent link to this record |
| |
|
| |
| Author |
Baraloto, C.; Alverga, P.; Quispe, S.B.; Barnes, G.; Chura, N.B.; Da Silva, I.B.; Castro, W.; Da Souza, H.; De Souza Moll, I.; Del Alcazar Chilo, J.; Linares, H.D.; Quispe, J.G.; Kenji, D.; Medeiros, H.; Murphy, S.; Rockwell, C.A.; Shenkin, A.; Silveira, M.; Southworth, J.; Vasquez, G.; Perz, S. |
| Title |
Trade-offs among forest value components in community forests of southwestern Amazonia |
Type |
Journal Article |
| Year |
2014 |
Publication |
Ecology and Society |
Abbreviated Journal |
Ecology and Society |
| Volume |
19 |
Issue |
4 |
Pages |
56 |
| Keywords |
Açai; Biodiversity conservation; Brazil nut; Carbon stocks; Livelihood; Ntfp; Redd; Rubber; Timber; Tropical rainforest |
| Abstract |
Contemporary conservation interventions must balance potential trade-offs between multiple ecosystem services. In tropical forests, much attention has focused on the extent to which carbon-based conservation provided by REDD+ policies can also mitigate biodiversity conservation. In the nearly one-third of tropical forests that are community owned or managed, conservation strategies must also balance the multiple uses of forest products that support local livelihoods. Although much discussion has focused on policy options, little empirical evidence exists to evaluate the potential for trade-offs among different tropical forest value components. We assessed multiple components of forest value, including tree diversity, carbon stocks, and both timber and nontimber forest product resources, in forest communities across the trinational frontier of Brazil, Peru, and Bolivia. We installed 69 0.5-ha vegetation plots in local communities, and we characterized 15 components of forest value for each plot. Principal components analyses revealed two major axes of forest value, the first of which defined a trade-off between diversity of woody plant communities (taxonomic and functional) versus aboveground biomass and standing timber volume. The second axis described abundance of commercial species, with strong positive loadings for density of timber and nontimber forest products, including Brazil nut (Bertholletia excelsa) and copaiba oil (Copaifera spp.). The observed trade-off between different components of forest value suggests a potential for management conflicts prioritizing biodiversity conservation versus carbon stocks in the region. We discuss the potential for integrative indices of forest value for tropical forest conservation. |
| Address |
Department of Sociology and Criminology and Law, University of Florida, United States |
| Corporate Author |
|
Thesis |
|
| Publisher |
|
Place of Publication |
|
Editor |
|
| Language |
|
Summary Language |
|
Original Title |
|
| Series Editor |
|
Series Title |
|
Abbreviated Series Title |
|
| Series Volume |
|
Series Issue |
|
Edition |
|
| ISSN |
|
ISBN |
|
Medium |
|
| Area |
|
Expedition |
|
Conference |
|
| Notes |
Export Date: 23 March 2015 |
Approved |
no |
| Call Number |
EcoFoG @ webmaster @ |
Serial |
589 |
| Permanent link to this record |
| |
|
| |
| Author |
Aubry-Kientz, M.; Herault, B.; Ayotte-Trépanier, C.; Baraloto, C.; Rossi, V. |
| Title |
Toward Trait-Based Mortality Models for Tropical Forests |
Type |
Journal Article |
| Year |
2013 |
Publication |
PLoS ONE |
Abbreviated Journal |
PLoS ONE |
| Volume |
8 |
Issue |
5 |
Pages |
e63678 |
| Keywords |
|
| Abstract |
Tree mortality in tropical forests is a complex ecological process for which modelling approaches need to be improved to better understand, and then predict, the evolution of tree mortality in response to global change. The mortality model introduced here computes an individual probability of dying for each tree in a community. The mortality model uses the ontogenetic stage of the tree because youngest and oldest trees are more likely to die. Functional traits are integrated as proxies of the ecological strategies of the trees to permit generalization among all species in the community. Data used to parametrize the model were collected at Paracou study site, a tropical rain forest in French Guiana, where 20,408 trees have been censused for 18 years. A Bayesian framework was used to select useful covariates and to estimate the model parameters. This framework was developed to deal with sources of uncertainty, including the complexity of the mortality process itself and the field data, especially historical data for which taxonomic determinations were uncertain. Uncertainty about the functional traits was also considered, to maximize the information they contain. Four functional traits were strong predictors of tree mortality: wood density, maximum height, laminar toughness and stem and branch orientation, which together distinguished the light-demanding, fast-growing trees from slow-growing trees with lower mortality rates. Our modelling approach formalizes a complex ecological problem and offers a relevant mathematical framework for tropical ecologists to process similar uncertain data at the community level. © 2013 Aubry-Kientz et al. |
| Address |
INRA, UMR 'Ecologie des Forêts de Guyane', Kourou, France |
| Corporate Author |
|
Thesis |
|
| Publisher |
|
Place of Publication |
|
Editor |
|
| Language |
|
Summary Language |
|
Original Title |
|
| Series Editor |
|
Series Title |
|
Abbreviated Series Title |
|
| Series Volume |
|
Series Issue |
|
Edition |
|
| ISSN |
19326203 (Issn) |
ISBN |
|
Medium |
|
| Area |
|
Expedition |
|
Conference |
|
| Notes |
Export Date: 23 May 2013; Source: Scopus; Art. No.: e63678; :doi 10.1371/journal.pone.0063678; Language of Original Document: English; Correspondence Address: Aubry-Kientz, M.; Université des Antilles et de la Guyane, UMR 'Ecologie des Forêts de Guyane', Kourou, France; email: melaine.aubry-kientz@ecofog.gf |
Approved |
no |
| Call Number |
EcoFoG @ webmaster @ |
Serial |
486 |
| Permanent link to this record |
| |
|
| |
| Author |
Wagner, F.; Rossi, V.; Stahl, C.; Bonal, D.; Herault, B. |
| Title |
Water availability is the main climate driver of neotropical tree growth |
Type |
Journal Article |
| Year |
2012 |
Publication |
PLoS ONE |
Abbreviated Journal |
PLoS ONE |
| Volume |
7 |
Issue |
4 |
Pages |
e34074 |
| Keywords |
|
| Abstract |
Climate models for the coming century predict rainfall reduction in the Amazonian region, including change in water availability for tropical rainforests. Here, we test the extent to which climate variables related to water regime, temperature and irradiance shape the growth trajectories of neotropical trees. We developed a diameter growth model explicitly designed to work with asynchronous climate and growth data. Growth trajectories of 205 individual trees from 54 neotropical species censused every 2 months over a 4-year period were used to rank 9 climate variables and find the best predictive model. About 9% of the individual variation in tree growth was imputable to the seasonal variation of climate. Relative extractable water was the main predictor and alone explained more than 60% of the climate effect on tree growth, i.e. 5.4% of the individual variation in tree growth. Furthermore, the global annual tree growth was more dependent on the diameter increment at the onset of the rain season than on the duration of dry season. The best predictive model included 3 climate variables: relative extractable water, minimum temperature and irradiance. The root mean squared error of prediction (0.035 mm.d -1) was slightly above the mean value of the growth (0.026 mm.d -1). Amongst climate variables, we highlight the predominant role of water availability in determining seasonal variation in tree growth of neotropical forest trees and the need to include these relationships in forest simulators to test, in silico, the impact of different climate scenarios on the future dynamics of the rainforest. © 2012 Wagner et al. |
| Address |
INRA, UMR 'Ecologie et Ecophysiologie Forestière', Champenoux, France |
| Corporate Author |
|
Thesis |
|
| Publisher |
|
Place of Publication |
|
Editor |
|
| Language |
|
Summary Language |
|
Original Title |
|
| Series Editor |
|
Series Title |
|
Abbreviated Series Title |
|
| Series Volume |
|
Series Issue |
|
Edition |
|
| ISSN |
19326203 (Issn) |
ISBN |
|
Medium |
|
| Area |
|
Expedition |
|
Conference |
|
| Notes |
Export Date: 24 April 2012; Source: Scopus; Art. No.: e34074; doi: 10.1371/journal.pone.0034074; Language of Original Document: English; Correspondence Address: Wagner, F.; Université des Antilles et de la Guyane, UMR 'Ecologie des Forêts de Guyane', BP 709, Kourou, France; email: fabien.wagner@ecofog.gf |
Approved |
no |
| Call Number |
EcoFoG @ webmaster @ |
Serial |
394 |
| Permanent link to this record |
| |
|
| |
| Author |
Bertani, S.; Houel, E.; Jullian, V.; Bourdy, G.; Valentin, A.; Stien, D.; Deharo, E. |
| Title |
New findings on Simalikalactone D, an antimalarial compound from Quassia amara L. (Simaroubaceae) |
Type |
Journal Article |
| Year |
2012 |
Publication |
Experimental Parasitology |
Abbreviated Journal |
Exp. Parasitol. |
| Volume |
130 |
Issue |
4 |
Pages |
341-347 |
| Keywords |
Antimalarial; Plasmodium; Quassia amara; Quassinoid; Simalikalactone d |
| Abstract |
Quassia amara L. (Simaroubaceae) is a species widely used as tonic and is claimed to be an efficient antimalarial all over the Northern part of the Amazon basin. Quassinoid compound Simalikalactone D (SkD) has been shown to be one of the molecules responsible for the antiplasmodial activity of a watery preparation made out of juvenile fresh leaves of this plant. Because of its strong antimalarial activity, we decided to have a further insight of SkD pharmacological properties, alone or in association with classical antimalarials. At concentrations of up to 200 μM, we showed herein that SkD did not exert any apoptotic or necrotic activities in vitro on lymphoblastic cells. However, an antiproliferative effect was evident at concentrations higher than 45. nM. SkD was inefficient at inhibiting heme biomineralization and the new permeability pathways induced by the parasite in the host erythrocyte membrane. With respect to Plasmodium falciparum erythrocytic stages, SkD was almost inactive on earlier and later parasite stages, but potently active at the 30th h of parasite cycle when DNA replicates in mature trophozoites. In vitro combination studies with conventional antimalarial drugs showed that SkD synergizes with atovaquone (ATO). The activity of ATO on the Plasmodium mitochondrial membrane potential was enhanced by SkD, which on its own had a poor effect on this cellular parameter. © 2012 Elsevier Inc. |
| Address |
UMR152 IRD-UPS, Institut de Recherche pour le Développement (IRD), Universidad Peruana Cayetano Heredia (UPCH), Lima, Peru |
| Corporate Author |
|
Thesis |
|
| Publisher |
|
Place of Publication |
|
Editor |
|
| Language |
|
Summary Language |
|
Original Title |
|
| Series Editor |
|
Series Title |
|
Abbreviated Series Title |
|
| Series Volume |
|
Series Issue |
|
Edition |
|
| ISSN |
00144894 (Issn) |
ISBN |
|
Medium |
|
| Area |
|
Expedition |
|
Conference |
|
| Notes |
Export Date: 24 April 2012; Source: Scopus; Coden: Expaa; doi: 10.1016/j.exppara.2012.02.013; Language of Original Document: English; Correspondence Address: Deharo, E.; UMR152 IRD-UPS, Faculté de Pharmacie, 35 chemin des maraîchers, 31062 Toulouse cedex 9, France; email: ericdeharo@gmail.com |
Approved |
no |
| Call Number |
EcoFoG @ webmaster @ |
Serial |
395 |
| Permanent link to this record |
| |
|
| |
| Author |
Tindo, M.; Mbenoun Masse, P.S.; Kenne, M.; Mony, R.; Orivel, J.; Doumtsop Fotio, A.; Fotso Kuaté, A.; Djiéto-Lordon, C.; Fomena, A.; Estoup, A.; Dejean, A.; Foucaud, J. |
| Title |
Current distribution and population dynamics of the little fire ant supercolony in cameroon |
Type |
Journal Article |
| Year |
2012 |
Publication |
Insectes Sociaux |
Abbreviated Journal |
Insectes Sociaux |
| Volume |
59 |
Issue |
2 |
Pages |
175-182 |
| Keywords |
Auropunctata; Dispersion; Invasive ants; Reproduction strategy; Unicoloniality; Wasmannia |
| Abstract |
The little fire ant, Wasmannia auropunctata, is native to Central America, but has been introduced into many parts of the world. We examined the current distribution of W. auropunctata in Cameroon, tested for aggression between workers from different parts of the country, and examined the genotypes of workers, queens, and males to evaluate the mating system. We found W. auropunctata at 36 sites in three provinces (Centre, East, and South). We found W. auropunctata only in human-disturbed habitats. Its spread appears to be primarily human mediated. Aggressive behaviour was almost non-existent between workers from different sites, indicating that there is only one supercolony in Cameroon. Our genetic analysis found that only one male/female pair of clones was introduced into Cameroon, probably from Gabon. No new male clonal lineage was identified, whereas new sexually derived female clonal lineages were noted. Apart from the genotype of the founding queen, which was well distributed but generally not dominant, a new clonal queen genotype emerged and was both omnipresent and dominant at most sites. These results may be useful in the development of management strategies. © International Union for the Study of Social Insects (IUSSI) 2011. |
| Address |
Laboratoire Evolution Genome Speciation, Centre National de la Recherche Scientifique, Avenue de la Terrasse, F 91198 Gif sur Yvette, France |
| Corporate Author |
|
Thesis |
|
| Publisher |
|
Place of Publication |
|
Editor |
|
| Language |
|
Summary Language |
|
Original Title |
|
| Series Editor |
|
Series Title |
|
Abbreviated Series Title |
|
| Series Volume |
|
Series Issue |
|
Edition |
|
| ISSN |
00201812 (Issn) |
ISBN |
|
Medium |
|
| Area |
|
Expedition |
|
Conference |
|
| Notes |
Export Date: 24 April 2012; Source: Scopus; Coden: Insoa; doi: 10.1007/s00040-011-0202-x; Language of Original Document: English; Correspondence Address: Tindo, M.; Département de Biologie des Organismes Animaux, Faculté des Sciences, Université de Douala, BP 24157 Douala, Cameroon; email: tindodouala@yahoo.com |
Approved |
no |
| Call Number |
EcoFoG @ webmaster @ |
Serial |
392 |
| Permanent link to this record |
| |
|
| |
| Author |
Baraloto, C.; Hardy, O.J.; Paine, C.E.T.; Dexter, K.G.; Cruaud, C.; Dunning, L.T.; Gonzalez, M.-A.; Molino, J.-F.; Sabatier, D.; Savolainen, V.; Chave, J. |
| Title |
Using functional traits and phylogenetic trees to examine the assembly of tropical tree communities |
Type |
Journal Article |
| Year |
2012 |
Publication |
Journal of Ecology |
Abbreviated Journal |
J. Ecol. |
| Volume |
100 |
Issue |
3 |
Pages |
690-701 |
| Keywords |
Competition; Determinants of plant community diversity and structure; Environmental filtering; French Guiana; Functional traits; Limiting similarity; Niche; Phylogenetic signal; Tropical forests |
| Abstract |
Niche theory proposes that species differences underlie both coexistence within communities and the differentiation in species composition among communities via limiting similarity and environmental filtering. However, it has been difficult to extend niche theory to species-rich communities because of the empirical challenge of quantifying niches for many species. This has motivated the development of functional and phylogeny-based approaches in community ecology, which represent two different means of approximating niche attributes. Here, we assess the utility of plant functional traits and phylogenetic relationships in predicting community assembly processes using the largest trait and phylogenetic data base to date for any set of species-rich communities. We measured 17 functional traits for all 4672 individuals of 668 tree species co-occurring in nine tropical rain forest plots in French Guiana. Trait variation was summarized into two ordination axes that reflect species niche overlap. We also generated a dated molecular phylogenetic tree based on DNA sequencing of two plastid loci (rbcL and matK) comprising 97% of the individuals and 91% of the species in the plots. We found that, on average, co-occurring species had greater functional and, to a lesser extent, phylogenetic similarity than expected by chance. We also found that functional traits and their ordination loadings showed significant, albeit weak, phylogenetic signal, suggesting that phylogenetic distance provides pertinent information on niche overlap in tropical tree communities. Synthesis. We provide the most comprehensive examination to date of the relative importance of environmental filtering and limiting similarity in structuring tropical tree communities. Our results confirm that environmental filtering is the overriding influence on community assembly in these species-rich systems. © 2012 The Authors. Journal of Ecology © 2012 British Ecological Society. |
| Address |
Royal Botanic Gardens, Kew, Richmond TW9 3DS, United Kingdom |
| Corporate Author |
|
Thesis |
|
| Publisher |
|
Place of Publication |
|
Editor |
|
| Language |
|
Summary Language |
|
Original Title |
|
| Series Editor |
|
Series Title |
|
Abbreviated Series Title |
|
| Series Volume |
|
Series Issue |
|
Edition |
|
| ISSN |
00220477 (Issn) |
ISBN |
|
Medium |
|
| Area |
|
Expedition |
|
Conference |
|
| Notes |
Export Date: 24 April 2012; Source: Scopus; Coden: Jecoa; doi: 10.1111/j.1365-2745.2012.01966.x; Language of Original Document: English; Correspondence Address: Chave, J.; Université Paul Sabatier, CNRS, UMR 5174 Laboratoire Evolution et Diversité Biologique, 31062 Toulouse, France; email: chave@cict.fr |
Approved |
no |
| Call Number |
EcoFoG @ webmaster @ |
Serial |
393 |
| Permanent link to this record |
| |
|
| |
| Author |
Ntienoue, J.K.; Reguer, A.; Robert, F.; Nait-Rabah, O.; Roos, C. |
| Title |
Electrochemical behaviour of a super austenitic stainless steel in amazonian aqueous environment |
Type |
Journal Article |
| Year |
2013 |
Publication |
International Journal of Electrochemical Science |
Abbreviated Journal |
Int.J.Electrochem.Sci. |
| Volume |
8 |
Issue |
4 |
Pages |
4761-4775 |
| Keywords |
Cyclic voltammetry; Eis; Esem; Passive films; Stainless steel |
| Abstract |
The electrochemical behaviour of 254 SMO super austenitic stainless steel in natural seawater collected from river mouth of French Guiana was investigated. A comparative study of samples immersed during 22 days in this environment was made including influences of scraped biofilm introduced in experiments and of stirring. Electrochemical measurements – open circuit potential (OCP), electrochemical impedance spectroscopy (EIS), cyclic voltammetry (CV) and linear polarisation (LP) – are used to characterize the metal/medium interface included biofilms adhesion. The EDX analysis (EDAX system) shows that the chemical composition of adhered biofilm consists mostly of iron, oxygen, silicon and aluminium and seem preferentially bind on metal defects. © 2013 by ESG. |
| Address |
Laboratoire Matériaux et Molécules en Milieu Amazonien, Université des Antilles et de la Guyane, UAG-UMR ECOFOG, Campus Trou Biran, Cayenne 97337, French Guiana |
| Corporate Author |
|
Thesis |
|
| Publisher |
|
Place of Publication |
|
Editor |
|
| Language |
|
Summary Language |
|
Original Title |
|
| Series Editor |
|
Series Title |
|
Abbreviated Series Title |
|
| Series Volume |
|
Series Issue |
|
Edition |
|
| ISSN |
14523981 (Issn) |
ISBN |
|
Medium |
|
| Area |
|
Expedition |
|
Conference |
|
| Notes |
Export Date: 24 April 2013; Source: Scopus; Language of Original Document: English; Correspondence Address: Roos, C.; Laboratoire Matériaux et Molécules en Milieu Amazonien, Université des Antilles et de la Guyane, UAG-UMR ECOFOG, Campus Trou Biran, Cayenne 97337, French Guiana; email: christophe.roos@guyane.univ-ag.fr |
Approved |
no |
| Call Number |
EcoFoG @ webmaster @ |
Serial |
483 |
| Permanent link to this record |
| |
|
| |
| Author |
Anouhe, J.-B.S.; Adima, A.A.; Niamké, F.B.; Stien, D.; Amian, B.K.; Blandinieres, P.-A.; Virieux, D.; Pirat, J.-L.; Kati-Coulibaly, S.; Amusant, N. |
| Title |
Dicorynamine and harmalan-N-oxide, two new β-carboline alkaloids from Dicorynia guianensis Amsh heartwood |
Type |
Journal Article |
| Year |
2015 |
Publication |
Phytochemistry Letters |
Abbreviated Journal |
Phytochemistry Letters |
| Volume |
12 |
Issue |
|
Pages |
158-163 |
| Keywords |
ABTS antioxidant; Biogenesis; Dicorynia guianensis; Nitrone; Spiroindolone |
| Abstract |
Abstract The chemical investigations of Dicorynia guianensis heartwood led to the isolation of four new indole alkaloids for the first time in this plant. Compound (1) identified as spiroindolone 2′,3′,4′,9′-tetrahydrospiro [indoline-3,1′pyrido[3,4-b]-indol]-2-one, and compound (3) described as nitrone 1-methyl-4,9-dihydro-3H-pyrido [3,4-b] indole 2-oxide and were isolated for the first time as natural products. ABTS antioxidant activity guided their isolation. © 2015 Published by Elsevier B.V. on behalf of Phytochemical Society of Europe. |
| Address |
CIRAD, Département Environnements et Sociétés, UMR Ecologie des Forêts de GuyaneKourou cedex, France |
| Corporate Author |
|
Thesis |
|
| Publisher |
|
Place of Publication |
|
Editor |
|
| Language |
|
Summary Language |
|
Original Title |
|
| Series Editor |
|
Series Title |
|
Abbreviated Series Title |
|
| Series Volume |
|
Series Issue |
|
Edition |
|
| ISSN |
|
ISBN |
|
Medium |
|
| Area |
|
Expedition |
|
Conference |
|
| Notes |
Export Date: 24 April 2015 |
Approved |
no |
| Call Number |
EcoFoG @ webmaster @ |
Serial |
598 |
| Permanent link to this record |
| |
|
| |
| Author |
Touchard, A.; Koh, J.M.S.; Aili, S.R.; Dejean, A.; Nicholson, G.M.; Orivel, J.; Escoubas, P. |
| Title |
The complexity and structural diversity of ant venom peptidomes is revealed by mass spectrometry profiling |
Type |
Journal Article |
| Year |
2015 |
Publication |
Rapid Communications in Mass Spectrometry |
Abbreviated Journal |
Rapid Communications in Mass Spectrometry |
| Volume |
29 |
Issue |
5 |
Pages |
385-396 |
| Keywords |
|
| Abstract |
Rationale Compared with other animal venoms, ant venoms remain little explored. Ants have evolved complex venoms to rapidly immobilize arthropod prey and to protect their colonies from predators and pathogens. Many ants have retained peptide-rich venoms that are similar to those of other arthropod groups. Methods With the goal of conducting a broad and comprehensive survey of ant venom peptide diversity, we investigated the peptide composition of venoms from 82 stinging ant species from nine subfamilies using matrix-assisted laser desorption/ionisation time-of-flight mass spectrometry (MALDI-TOFMS). We also conducted an in-depth investigation of eight venoms using reversed-phase high-performance liquid chromatography (RP-HPLC) separation coupled with offline MALDI-TOFMS. Results Our results reveal that the peptide compositions of ant venom peptidomes from both poneroid and formicoid ant clades comprise hundreds of small peptides (<4 kDa), while large peptides (>4 kDa) are also present in the venom of formicoids. Chemical reduction revealed the presence of disulfide-linked peptides in most ant subfamilies, including peptides structured by one, two or three disulfide bonds as well as dimeric peptides reticulated by three disulfide bonds. Conclusions The biochemical complexity of ant venoms, associated with an enormous ecological and taxonomic diversity, suggests that stinging ant venoms constitute a promising source of bioactive molecules that could be exploited in the search for novel drug and biopesticide leads. Copyright © 2015 John Wiley & Sons, Ltd. Copyright © 2015 John Wiley & Sons, Ltd. |
| Address |
VenomeTech, 473 Route des DolinesValbonne, France |
| Corporate Author |
|
Thesis |
|
| Publisher |
|
Place of Publication |
|
Editor |
|
| Language |
|
Summary Language |
|
Original Title |
|
| Series Editor |
|
Series Title |
|
Abbreviated Series Title |
|
| Series Volume |
|
Series Issue |
|
Edition |
|
| ISSN |
|
ISBN |
|
Medium |
|
| Area |
|
Expedition |
|
Conference |
|
| Notes |
Export Date: 24 April 2015 |
Approved |
no |
| Call Number |
EcoFoG @ webmaster @ |
Serial |
599 |
| Permanent link to this record |
