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Author Maia, A.C.D.; Gibernau, M.; Dötterl, S.; Do Amaral Ferraz Navarro, D.M.; Seifert, K.; Müller, T.; Schlindwein, C. url  openurl
  Title The floral scent of Taccarum ulei (Araceae): Attraction of scarab beetle pollinators to an unusual aliphatic acyloin Type Journal Article
  Year 2013 Publication (up) Phytochemistry Abbreviated Journal Phytochemistry  
  Volume 93 Issue Pages 71-78  
  Keywords (S)-2-Hydroxy-5-methyl-3-hexanone; Araceae; Behavioral tests; Cyclocephala celata and C. cearae; Dihydro-β-ionone; Floral volatiles; Taccarum ulei  
  Abstract The strongly fragrant thermogenic inflorescences of Taccarum ulei (Araceae) are highly attractive to nightactive 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 that two constituents, (S)-2-hydroxy-5- methyl-3-hexanone (an aliphatic acyloin rarely detected in flowers) and dihydro-b-ionone (an irregular terpene) accounted for over 96% of the total scent discharge. Behavioral tests (in both field and cages) showed that male and female C. celata and C. cearae were attracted to traps baited with a synthetic mixture of both compounds; however, they were also responsive to (S)-2-hydroxy-5-methyl-3-hexanone alone, which thus functions as a specific attractive cue. These findings support other recent research in suggesting that angiosperms pollinated by cyclocephaline scarab beetles release floral odors of limited complexity in terms of numbers of compounds, but often dominated by unusual compounds that may ensure attraction of specific pollinator species. © 2013 Elsevier B.V.  
  Address Organismic Biology, Plant Ecology, Salzburg University, 5020 Salzburg, Austria  
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  ISSN 00319422 (Issn) ISBN Medium  
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  Notes Export Date: 10 October 2013; Source: Scopus; Coden: Pytca; doi: 10.1016/j.phytochem.2013.03.005; Language of Original Document: English; Correspondence Address: Maia, A.C.D.; Universidade Federal de Pernambuco, Centro de Ciências Exatas e da Natureza, Departamento de Química Fundamental, Av. Jornalista Anibal Fernandes, s/n, Cidade Universita, Recife, PE 50740-560, Brazil; email: arturcamposmaia@yahoo.com.br Approved no  
  Call Number EcoFoG @ webmaster @ Serial 504  
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Author Casella, T.M.; Eparvier, V.; Mandavid, H.; Bendelac, A.; Odonne, G.; Dayan, L.; Duplais, C.; Espindola, L.S.; Stien, D. url  openurl
  Title Antimicrobial and cytotoxic secondary metabolites from tropical leaf endophytes: Isolation of antibacterial agent pyrrocidine C from Lewia infectoria SNB-GTC2402 Type Journal Article
  Year 2013 Publication (up) Phytochemistry Abbreviated Journal Phytochemistry  
  Volume 96 Issue Pages 370-377  
  Keywords Antimicrobials; Cytotoxic metabolites; Functional chemodiversity; Leaf endophytes; Lewia; Pyrrocidine C  
  Abstract Because of the symbiotic nature of endophytes, this survey aims to investigate the probability of discovering antibacterial, antifungal and cytotoxic activities in leaf endophytic microbes. We isolated 138 cultivable microbes (121 fungi, 3 bacteria and 14 unidentified or unknown microbes) from 24 plant species, a significant relative proportion of which exhibited antifungal and cytotoxic potential against Candida albicans ATCC 10213 and the human cell lines KB (uterine cervical carcinoma), MDA-MB-435 (melanoma), and MRC5 (normal human lung fibroblasts). Three active fungal extracts were fractionated, resulting in the isolation of eight compounds. Seven had been described in the literature including the following: acremonisol A, semicochliodinol A, cochliodinol, griseofulvin, pyrenocin A, novae zelandin A and alterperylenol. A previously unreported compound named pyrrocidine C was isolated from Lewia infectoria SNB-GTC2402 and identified by spectroscopic analysis. As in pyrrocidines A and B, this compound is a cis-substituted decahydrofluorene with a quaternary carbon at C-5 and opposite stereochemistry at C-8 corresponding to C-6 of pyrrocidines A and B.© 2013 Elsevier Ltd. All rights reserved.  
  Address CNRS Guyane, USR 3456, 2 Avenue Gustave Charlery, 97300 Cayenne, France  
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  ISSN 00319422 (Issn) ISBN Medium  
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  Notes Export Date: 6 December 2013; Source: Scopus; Coden: Pytca; doi: 10.1016/j.phytochem.2013.10.004; Language of Original Document: English; Correspondence Address: Espindola, L.S.; Laboratório de Farmacognosia, Universidade de Brasília, Brasília, DF, Brazil; email: darvenne@unb.br; References: Arnold, A.E., Mejia, L.C., Kyllo, D., Rojas, E.I., Maynard, Z., Robbins, N., Herre, E.A., Fungal endophytes limit pathogen damage in a tropical tree (2003) Proceedings of the National Academy of Sciences of the United States of America, 100 (26), pp. 15649-15654. , DOI 10.1073/pnas.2533483100; Asahina, A., Tada, Y., Nakamura, K., Tamaki, K., Colchicine and griseofulvin inhibit VCAM-1 expression on human vascular endothelial cells – Evidence for the association of VCAM-1 expression with microtubules (2001) Journal of Dermatological Science, 25 (1), pp. 1-9. , DOI 10.1016/S0923-1811(00)00097-9, PII S0923181100000979; Bacon, C.W., White, J.F., (2000) Microbial Endophytes, , Marcel Dekker Inc. New York; Brewer, D., Jerram, W.A., Meiler, D., Taylor, A., The toxicity of cochliodinol, an antibiotic metabolite of Chaetomium spp (1970) Can. J. Microbiol., 16, pp. 433-440; Cafeu, M.C., Silva, G.H., Teles, H.L., Bolzani, V.D.S., Araujo, A.R., Young, M.C.M., Pfenning, L.H., Antifungal compounds of Xylaria sp., an endophytic fungus isolated from Palicourea marcgravii (Rubiaceae) (2005) Quimica Nova, 28 (6), pp. 991-995. , http://www.scielo.br/pdf/qn/v28n6/26827.pdf; Chooi, Y.-H., Cacho, R., Tang, Y., Identification of the viridicatumtoxin and Griseofulvin gene clusters from Pennicillium aethiopicum (2010) Chem. Biol., 17, pp. 483-494; Christensen, K.B., Van Klink, J.W., Weavers, R.T., Larsen, T.O., Andersen, B., Phipps, R.K., Novel chemotaxonomic markers of the Alternaria infectoria species-group (2005) Journal of Agricultural and Food Chemistry, 53 (24), pp. 9431-9435. , DOI 10.1021/jf0513213; Clay, K., Holah, J., Fungal endophyte symbiosis and plant diversity in successional fields (1999) Science, 285 (5434), pp. 1742-1744. , DOI 10.1126/science.285.5434.1742; Debbab, A., Hassan, A.A., Edrada-Ebel, R.A., Müller, W.E.G., Mosaddak, M., Hakiki, A., Ebel, R., Proksch, P., Bioactive secondary metabolites from the endophytic fungus Chaetomium sp. Isolated from Salvia officinalis growing in Morocco (2009) Biotechnol. Agron. Soc. Environ., 13, pp. 229-234; Fredenhagen, A., Petersen, F., Tintelnot-Blomley, M., Rosel, J., Mett, H., Hug, P., Semicochliodinol A and B: Inhibitors of HIV-1 protease and EGF-R protein tyrosine kinase related to asterriquinones produced by the fungus Chrysosporium merdarium (1997) Journal of Antibiotics, 50 (5), pp. 395-401; He, H., Yang, H.Y., Bigelis, R., Solum, E.H., Greenstein, M., Carter, G.T., Pyrrocidines A and B, new antibiotics produced by a filamentous fungus (2002) Tetrahedron Letters, 43 (9), pp. 1633-1636. , DOI 10.1016/S0040-4039(02)00099-0, PII S0040403902000990; Ichihara, A., Murakami, K., Sakamura, S., Synthesis of pyrenocines A, B and pyrenochaetic acid A (1987) Tetrahedron, 43, pp. 5245-5250; Isaka, M., Rugseree, N., Maithip, P., Kongsaeree, P., Prabpai, S., Thebtaranonth, Y., Hirsutellones A-E, antimycobacterial alkaloids from the insect pathogenic fungus Hirsutella nivea BCC 2594 (2005) Tetrahedron, 61 (23), pp. 5577-5583. , DOI 10.1016/j.tet.2005.03.099, PII S0040402005005843; Jones, K.E., Patel, N.G., Levy, M.A., Storeygard, A., Balk, D., Gittleman, J.L., Daszak, P., Global trends in emerging infectious diseases (2008) Nature, 451 (7181), pp. 990-993. , DOI 10.1038/nature06536, PII NATURE06536; Kingsland, S.R., Barrow, R.A., Identification of chaetoviridin e from a cultured microfungus, Chaetomium sp. and structural reassignment of chaetoviridins B and D (2009) Aust. J. Chem., 62, pp. 269-274; Lee, J.S., Ko, K.S., Jung, H.S., Phylogenetic analysis of Xylaria based on nuclear ribosomal ITS1-5.8S-ITS2 sequences (2000) FEMS Microbiology Letters, 187 (1), pp. 89-93. , DOI 10.1016/S0378-1097(00)00181-6, PII S0378109700001816; Li, X.-W., Eara, A., Nay, B., Hirsutellones and beyond: Figuring out the biological and synthetic logics toward chemical complexity in fungal PKS-NRPS compounds (2013) Nat. Prod. Rep., 30, pp. 765-782; Mousa, W.K., Raizada, M.N., The diversity of anti-microbial secondary metabolites produced by fungal endophytes: An interdisciplinary perspective (2013) Front. Microbiol., 4 (65), pp. 1-18; Nebel, G., Dragsted, J., Vanclay, J.K., Structure and floristic composition of flood plain forests in the Peruvian Amazon II. The understorey of restinga forests (2001) Forest Ecology and Management, 150 (1-2), pp. 59-77. , DOI 10.1016/S0378-1127(00)00681-2, PII S0378112700006812; Nirma, C., Eparvier, V., Stien, D., Antifungal agents from Pseudallescheria boydii SNB-CN73 isolated from a Nasutitermes sp termite (2013) J. Nat. Prod., 76, pp. 988-991; Okuno, T., Natsume, I., Sawai, K., Structure of antifungal and phytotoxic pigments produced by Alternaria Sps (1983) Tetrahedron Letters, 24 (50), pp. 5653-5656. , DOI 10.1016/S0040-4039(00)94165-0; Pontius, A., Mohamed, I., Krick, A., Kehraus, S., Konig, G.M., Aromatic polyketides from marine algicolous fungi (2008) Journal of Natural Products, 71 (2), pp. 272-274. , DOI 10.1021/np0704710; Priest, F., Systematics and ecology of Bacillus (1993) Bacillus Subtilis and Other Gram-positive Bacteria, Biochemistry, Physiology, and Molecular Genetics, pp. 3-16. , A.L. Sonenshein, J.A. Hoch, R. Losick, ASM Press Washington; Rodrigues, A.M.S., Theodoro, P.N.E.T., Basset, C., Silva, M.R.R., Beauchêne, J., Espindola, L.S., Stien, D., Search for antifungal compounds from the wood of durable tropical trees (2010) J. Nat. Prod., 73, pp. 1706-1707; Rosenblueth, M., Martinez-Romero, E., Bacterial endophytes and their interactions with hosts (2006) Molecular Plant-Microbe Interactions, 19 (8), pp. 827-837. , DOI 10.1094/MPMI-19-0827; Strobel, G.A., Endophytes as sources of bioactive products (2003) Microbes and Infection, 5 (6), pp. 535-544. , DOI 10.1016/S1286-4579(03)00073-X; Tempête, C., Werner, G.H., Favre, F., Rojas, A., Langlois, N., In vitro cytostatic activity of 9-demethoxyporothramycin B (1995) Eur. J. Med. Chem., 30, pp. 647-650; Weber, R.W.S., Stenger, E., Meffert, A., Hahn, M., Brefeldin A production by Phoma medicaginis in dead pre-colonized plant tissue: A strategy for habitat conquest? (2004) Mycological Research, 108 (6), pp. 662-671. , DOI 10.1017/S0953756204000243; White, T.J., Bruns, T., Lee, S., Taylor, J., Amplification and direct sequencing of fungal ribosomal RNA genes for phylogenetics (1990) PCR Protocols. A Guide to Methods and Applications, pp. 315-322. , M.A. Innis, D.H. Gelfand, J.J. Shinsky, T.J. White, Academic Press San Diego; Zhang, Z., Schwartz, S., Wagner, L., Miller, W., A greedy algorithm for aligning DNA sequences (2000) Journal of Computational Biology, 7 (1-2), pp. 203-214. , DOI 10.1089/10665270050081478; Zhang, X.X., Li, C.J., Nan, Z.B., Matthew, C., Neotyphodium endophyte increases Achnatherum inebrians (drunken horse grass) resistance to herbivores and seed predators (2011) Weed Res., 52, pp. 70-78 Approved no  
  Call Number EcoFoG @ webmaster @ Serial 515  
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Author Cottet, K.; Genta-Jouve, G.; Fromentin, Y.; Odonne, G.; Duplais, C.; Laprévote, O.; Michel, S.; Lallemand, M.-C. url  openurl
  Title Comparative LC-MS-based metabolite profiling of the ancient tropical rainforest tree Symphonia globulifera Type Journal Article
  Year 2014 Publication (up) 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  
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  ISSN 00319422 (Issn) ISBN Medium  
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  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  
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Author Cachet, N.; Ho-A-Kwie, F.; Rivaud, M.; Houel, E.; Deharo, E.; Bourdy, G.; Jullian, V. url  openurl
  Title Picrasin K, a new quassinoid from Quassia amara L. (Simaroubaceae) Type Journal Article
  Year 2012 Publication (up) Phytochemistry Letters Abbreviated Journal Phytochem. Lett.  
  Volume 5 Issue 1 Pages 162-164  
  Keywords Malaria; P. falciparum; Quassia amara; Quassinoids; Simaroubaceae  
  Abstract A new quassinoid Picrasin K 1 was isolated from a decoction made of Quassia amara leaves, traditionally used in French Guyana to treat malaria. The structure and relative stereochemistry of 1 was determined through extensive NMR analysis. Picrasin K showed a low activity against Plasmodium falciparum in vitro (IC 50 = 8 μM), and a similar low activity on human cancerous cells line (IC 50 = 7 μM on MCF-7 cells line). © 2011 Phytochemical Society of Europe. Published by Elsevier B.V. All rights reserved.  
  Address CNRS, UMR Ecofog, Université des Antilles et de la Guyane, Cayenne, France  
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  ISSN 18743900 (Issn) ISBN Medium  
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  Notes Export Date: 8 March 2012; Source: Scopus; doi: 10.1016/j.phytol.2011.12.001; Language of Original Document: English; Correspondence Address: Jullian, V.; UMR-152 Pharma-Dev, IRD, Université Paul Sabatier Toulouse 3, 31062 Toulouse, France; email: jullian@cict.fr Approved no  
  Call Number EcoFoG @ webmaster @ Serial 382  
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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. url  openurl
  Title Dicorynamine and harmalan-N-oxide, two new β-carboline alkaloids from Dicorynia guianensis Amsh heartwood Type Journal Article
  Year 2015 Publication (up) 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  
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  Notes Export Date: 24 April 2015 Approved no  
  Call Number EcoFoG @ webmaster @ Serial 598  
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Author Engel, J.; Brousseau, L.; Baraloto, C. url  doi
openurl 
  Title GuiaTreeKey, a multi-access electronic key to identify tree genera in French Guiana Type Journal Article
  Year 2016 Publication (up) PhytoKeys Abbreviated Journal PhytoKeys  
  Volume 68 Issue 1 Pages 27-44  
  Keywords Amazonia; Electronic key; French Guiana; Morphological characters; Neotropics; Trees identification; Xper2  
  Abstract The tropical rainforest of Amazonia is one of the most species-rich ecosystems on earth, with an estimated 16000 tree species. Due to this high diversity, botanical identification of trees in the Amazon is difficult, even to genus, often requiring the assistance of parataxonomists or taxonomic specialists. Advances in informatics tools offer a promising opportunity to develop user-friendly electronic keys to improve Amazonian tree identification. Here, we introduce an original multi-access electronic key for the identification of 389 tree genera occurring in French Guiana terra-firme forests, based on a set of 79 morphological characters related to vegetative, floral and fruit characters. Its purpose is to help Amazonian tree identification and to support the dissemination of botanical knowledge to non-specialists, including forest workers, students and researchers from other scientific disciplines. The electronic key is accessible with the free access software Xper2, and the database is publicly available on figshare: https://figshare.com/s/75d890b7d707e0ffc9bf (doi: 10.6084/m9.figshare.2682550). © Julien Engel et al.  
  Address International Center for Tropical Botany, Department of Biological Sciences, Florida International University, 11200 SW 8th Street, Miami, FL, United States  
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  Notes Export Date: 8 September 2016 Approved no  
  Call Number EcoFoG @ webmaster @ Serial 693  
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Author Khia, A.; Ghanmi, M.; Satrani, B.; Aafi, A.; Aberchane, M.; Quaboul, B.; Chaouch, A.; Amusant, N.; Charrouf, Z. url  openurl
  Title Effect of provenance on the chemical and microbiological quality of essential oils of Rosmarinus officinalis L. in Morocco Type Journal Article
  Year 2014 Publication (up) Phytotherapie Abbreviated Journal Phytotherapie  
  Volume 12 Issue 6 Pages 341-347  
  Keywords Antibacterial; Antifungal activity; Chemical composition; Essential Oil; Provenance; Rosmarinus officinalis  
  Abstract This study is an assessment of the chemical quality and evaluation of antibacterial and antifungal activity of rosemary’s essential oils from three regions of Morocco (Rchida and Berkine/Eastern Morocco and Aknoul/North East of Morocco. The essential oils obtained by hydrodistillation of the leaves and young twigs of rosemary, were analyzed by GC / FID and GC/ MS. These essential oils are characterized by the presence of α and β-pinene, camphene, 1,8-cineole and camphor compounds. The quality of these essential oils met the AFNOR NF ISO 4730 rosemary Morocco kind (1,8-cineole). The evaluation of the antimicrobial activity of essential oils of Rosmarinus officinalis showed low efficacy against microorganisms tested which were all inhibited from 1/100 v/v except for Penicillium expansum whose growth was stopped at the concentration 1/250 v/v.  
  Address Département d’Environnement et Sociétés, UMR EcoFoG, CIRAD, BP 732Kourou cedex, French Guiana  
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  Notes Export Date: 31 December 2014 Approved no  
  Call Number EcoFoG @ webmaster @ Serial 574  
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Author Castro, H.; Fortunel, C.; Freitas, H. openurl 
  Title Effects of land abandonment on plant litter decomposition in a Montado system: relation to litter chemistry and community functional parameters Type Journal Article
  Year 2010 Publication (up) Plant and Soil Abbreviated Journal Plant Soil  
  Volume 333 Issue 1-2 Pages 181-190  
  Keywords Ecosystem processes; Land use change; Leaf dry matter content; Life form; Litter quality; Mediterranean  
  Abstract Changes in land use and subsequent shifts in vegetation can influence decomposition through changes in litter quality (chemistry and structure) and alterations of soil temperature and moisture. Our aim was to study the effects of land abandonment on litter decomposition in a Mediterranean area of Montado, South Portugal. We tested the hypothesis that decomposition tends to slow down with abandonment, as woody species, richer in lignified structures, replace herbaceous species. We assessed the decomposition of community litter in situ using litterbag technique. To test the influence of local conditions, we simultaneously incubated a standard litter in situ. Our results showed that the shift from herbaceous to shrub-dominated communities lead to decreased decomposition rates. Changes in litter decomposition were primarily driven by changes in litter quality, even though the uneven pattern of litter mass loss over the experiment might reveal an effect from possible differences in microclimate. Shrub litter had higher nutrient content than herbaceous litter, which seemed to favour higher initial decomposition rates, but lower decomposition rate in the longer term. Shrubs also contribute to woody litter, richer in lignin, and secondary compounds that retard decomposition, and may play a role in increasing pools of slowly decomposing organic matter.  
  Address [Castro, Helena; Freitas, Helena] Univ Coimbra, Dept Life Sci, Ctr Funct Ecol, P-3001401 Coimbra, Portugal, Email: hecastro@ci.uc.pt  
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  Publisher SPRINGER Place of Publication Editor  
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  Series Volume Series Issue Edition  
  ISSN 0032-079X ISBN Medium  
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  Notes ISI:000280089400015 Approved no  
  Call Number EcoFoG @ eric.marcon @ Serial 49  
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Author Tremolieres, M.; Noel, V.; Herault, B. openurl 
  Title Phosphorus and nitrogen allocation in Allium ursinum on an alluvial floodplain (Eastern France). Is there an effect of flooding history? Type Journal Article
  Year 2009 Publication (up) Plant and Soil Abbreviated Journal Plant Soil  
  Volume 324 Issue 1-2 Pages 279-289  
  Keywords Allium ursinum; Flooding history; Nitrogen; Nutrient bioavailability; Phosphorus; Rhine  
  Abstract The change in phosphorus and nitrogen content in a common geophyte spring species, Allium ursinum, is studied in alluvial forests in relation to three flooding histories related to river regulation: (1) annually flooded, (2) unflooded for 30 years, and (3) unflooded for 200 years. Flood suppression leads to a reduction of available P soil content as well as decreasing the biomass and the amount of phosphorus in plants, but has no significant effect on N plant content. Plant N:P ratio increases with the suppression of floods and is primarily driven by soil N:P ratios, in turn markedly linked to the total nitrogen in the soil. We highlighted a lower nutrient accumulation in leaves during plant growth in unflooded forests. Overall, our results suggest that P was the main limiting factor in unflooded forests while nitrogen was the main limiting factor in annually flooded forests. Flood suppression strongly affects the morphology and nutrient uptake by Allium ursinum and thus nutrient cycling in riverine forests.  
  Address [Tremolieres, Michele; Noel, Valerie] Inst Bot, LHYGES, UMR 7517, F-67083 Strasbourg, France, Email: michele.tremolieres@bota-ulp.u-strasbg.fr  
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  Notes ISI:000271028800020 Approved no  
  Call Number EcoFoG @ eric.marcon @ Serial 99  
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Author Brechet, L.; Ponton, S.; Roy, J.; Freycon, V.; Couteaux, M.M.; Bonal, D.; Epron, D. openurl 
  Title Do tree species characteristics influence soil respiration in tropical forests? A test based on 16 tree species planted in monospecific plots Type Journal Article
  Year 2009 Publication (up) Plant and Soil Abbreviated Journal Plant Soil  
  Volume 319 Issue 1-2 Pages 235-246  
  Keywords Fine root; Litter quality; Nutrient cycling; Plant soil interactions; Soil respiration; Tropical plantations  
  Abstract The high spatial variability of soil respiration in tropical rainforests is well evaluated, but influences of biotic factors are not clearly understood. This study underlines the influence of tree species characteristics on soil respiration across a 16-monospecific plot design in a tropical plantation of French Guiana. A large variability of soil CO2 fluxes was observed among plots (i.e. 2.8 to 6.8 μmol m(-2) s(-1)) with the ranking being constant across seasons. There were no significant relationships between soil respiration and soil moisture or soil temperature, neither spatially, nor seasonally. The variability of soil respiration was mainly explained by quantitative factors such as leaf litterfall and basal area. Surprisingly, no significant relationship was observed between soil respiration and root biomass. However, the influence of substrate quality was revealed by a strong relationship between soil respiration and litterfall P (and litterfall N, to a lesser extent).  
  Address [Ponton, Stephane] Natl Inst Agr Res INRA Ctr Rech Nancy, Forest Ecol & Ecophysiol Unit, UMR EEF, F-54280 Seichamps, France, Email: ponton@nancy.inra.fr  
  Corporate Author Thesis  
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  ISSN 0032-079X ISBN Medium  
  Area Expedition Conference  
  Notes ISI:000266143400020 Approved no  
  Call Number EcoFoG @ eric.marcon @ Serial 110  
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