EcoFoG Papers -- Query Results

	EcoFoG Papers Home \| Show All \| Simple Search \| Advanced Search	Login Quick Search: Field: contains: ...
	761–770 of 934 records found matching your query (RSS):

Search & Display Options

Select All Deselect All

[61–70] << 71 72 73 74 75 76 77 78 79 80 >> [81–90]

List View

Citations

Details

	Records
	Author	Courtois, E.A.; Baraloto, C.; Timothy Paine, C.E.; Petronelli, P.; Blandinieres, P.-A.; Stien, D.; Houel, E.; Bessiere, J.-M.; Chave, J.
	Title	Differences in volatile terpene composition between the bark and leaves of tropical tree species			Type	Journal Article
	Year	2012	Publication	Phytochemistry	Abbreviated Journal	Phytochemistry
	Volume	82	Issue		Pages	81-88
	Keywords	French Guiana; Herbivory; Optimal defense theory; Secondary metabolites; Wood
	Abstract	Volatile terpenes are among the most diverse class of defensive compounds in plants, and they are implicated in both direct and indirect defense against herbivores. In terpenes, both the quantity and the diversity of compounds appear to increase the efficiency of defense as a diverse blend of compounds provides a more efficient protection against a broader range of herbivores and limits the chances that an enemy evolves resistance. Theory predicts that plant defensive compounds should be allocated differentially among tissues according to the value of the tissue, its cost of construction and the herbivore pressure on it. We collected volatile terpenes from bark and leaves of 178 individual tree belonging to 55 angiosperm species in French Guiana and compare the kind, amount, and diversity of compounds in these tissues. We hypothesized that in woody plants, the outermost part of the trunk should hold a more diverse blend of volatile terpenes. Additionally, as herbivore communities associated with the leaves is different to the one associated with the bark, we also hypothesized that terpene blends should be distinct in the bark vs. the leaves of a given species. We found that the mixture of volatile terpenes released by bark is different and more diverse than that released by leaves, both in monoterpenes and sesquiterpenes. This supports our hypothesis and further suggests that the emission of terpenes by the bark should be more important for trunk defense than previously thought.
	Address	Station d'Écologie Expérimentale du CNRS Moulis, USR 2936, 2 route du CNRS, 09200 Moulis, 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	00319422 (Issn)	ISBN		Medium
	Area		Expedition		Conference
	Notes	Export Date: 4 September 2012; Source: Scopus; Coden: Pytca; doi: 10.1016/j.phytochem.2012.07.003; Language of Original Document: English; Correspondence Address: Courtois, E.A.; Station d'Écologie Expérimentale du CNRS Moulis, USR 2936, 2 route du CNRS, 09200 Moulis, France; email: courtoiselodie@gmail.com			Approved	no
	Call Number	EcoFoG @ webmaster @			Serial	425
Permanent link to this record



	Author	Maia, A.C.D.; Gibernau, M.; Dötterl, S.; Do Amaral Ferraz Navarro, D.M.; Seifert, K.; Müller, T.; Schlindwein, C.
	Title	The floral scent of Taccarum ulei (Araceae): Attraction of scarab beetle pollinators to an unusual aliphatic acyloin			Type	Journal Article
	Year	2013	Publication	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
	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	00319422 (Issn)	ISBN		Medium
	Area		Expedition		Conference
	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
Permanent link to this record



	Author	Casella, T.M.; Eparvier, V.; Mandavid, H.; Bendelac, A.; Odonne, G.; Dayan, L.; Duplais, C.; Espindola, L.S.; Stien, D.
	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	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
	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	00319422 (Issn)	ISBN		Medium
	Area		Expedition		Conference
	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
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	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	Engel, J.; Brousseau, L.; Baraloto, C.
	Title	GuiaTreeKey, a multi-access electronic key to identify tree genera in French Guiana			Type	Journal Article
	Year	2016	Publication	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
	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: 8 September 2016			Approved	no
	Call Number	EcoFoG @ webmaster @			Serial	693
Permanent link to this record



	Author	Khia, A.; Ghanmi, M.; Satrani, B.; Aafi, A.; Aberchane, M.; Quaboul, B.; Chaouch, A.; Amusant, N.; Charrouf, Z.
	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	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
	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: 31 December 2014			Approved	no
	Call Number	EcoFoG @ webmaster @			Serial	574
Permanent link to this record



	Author	Bompy, F.; Lequeue, G.; Imbert, D.; Dulormne, M.
	Title	Increasing fluctuations of soil salinity affect seedling growth performances and physiology in three Neotropical mangrove species			Type	Journal Article
	Year	2014	Publication	Plant and Soil	Abbreviated Journal	Plant and Soil
	Volume	380	Issue	1	Pages	399-413
	Keywords	Acclimation; Avicennia germinans; Hypersalinity; Laguncularia racemosa; Leaf gas exchange; Rhizophora mangle; Salt stress
	Abstract	Background: Micro-tidal wetlands are subject to strong seasonal variations of soil salinity that are likely to increase in amplitude according to climate model predictions for the Caribbean. Whereas the effects of constant salinity levels on the physiology of mangrove species have been widely tested, little is known about acclimation to fluctuations in salinity. Aims and methods: The aim of this experiment was to characterize the consequences of the rate of increase in salinity (slow versus fast) and salinity fluctuations over time versus constant salt level. Seedling mortality, growth, and leaf gas exchange of three mangrove species, Avicennia germinans, Laguncularia racemosa, and Rhizophora mangle were investigated in semicontrolled conditions at different salt levels (0, 685, 1025, and 1370 mM NaCl). Results: Slow salinity increase up to 685 mM induced acclimation, improving the salt tolerance of A. germinans and L. racemosa, but had no effect on R. mangle. During fluctuations between 0 and 685 mM, A. germinans and R. mangle were not affected by a salinity drop to zero, whereas L. racemosa took advantage of the brief freshwater episode as shown by the durable improvement of photosynthesis and biomass production. Conclusions: This study provides new insights into physiological resistance and acclimation to salt stress. We show that seasonal variations of salinity may affect mangrove seedlings' morphology and physiology as much as annual mean salinity. Moreover, more severe dry seasons due to climate change may impact tree stature and species composition in mangroves through higher mortality rates and physiological disturbance at the seedling stage. © 2014 Springer International Publishing Switzerland.
	Address	EA 926 DYNECAR, UFR des Sciences Exactes et Naturelles, Université des Antilles et de la Guyane, BP 592, 97 159 Pointe-à-Pitre cedex, Guadeloupe (F.W.I.), 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	Cited By :7; Export Date: 7 February 2017			Approved	no
	Call Number	EcoFoG @ webmaster @			Serial	726
Permanent link to this record



	Author	Dulormne, M.; Musseau, O.; Muller, F.; Toribio, A.; Bâ, A.
	Title	Effects of NaCl on growth, water status, N2 fixation, and ion distribution in Pterocarpus officinalis seedlings			Type	Journal Article
	Year	2010	Publication	Plant and Soil	Abbreviated Journal	Plant and Soil
	Volume	327	Issue	1	Pages	23-34
	Keywords	Bradyrhizobium; Leaf water potential; Nodulation; Salt; Swamp forest
	Abstract	Pterocarpus officinalis (Fabaceae) dominates in the swamp forests of the Lesser Antilles, submitted to strong variations of soil salinity (30-445 mM). This study aimed to assess the effect of salinity on growth, nodulation, N2 fixation, water status and ions content in P. officinalis and to clarify the mechanisms involved. Seedlings inoculated or not with two strains from areas of contrasting salinity levels (< to 50 or 445 mM) were watered with 0, 171 and 342 mM solutions of NaCl in greenhouse conditions. Non-inoculated seedlings were tolerant to a salinity of 171 mM, with no significant effect on seedling biomass. Evapotranspiration per unit of leaf area (E/TLa) remained unchanged at 171 mM. Maintenance of a constant E/TLa and especially the control of ion transport to the upper parts of the plant could explain seedling salt tolerance up to intermediate salinity conditions (171 mM). The two strains have a 99.8% genetic identity in spite of differences in their original habitats, this explaining the similar response of the symbiosis to salinity. The higher salt sensitivity of inoculated seedlings was linked to the sensitivity of both Bradyrhizobium strains (reduction of free-living cells) and to that of the nodulation process (fewer nodules and inhibition of N2-fixation) to intermediate salinity. © Springer Science + Business Media B.V. 2009.
	Address	LSTM-UMR 113, Université des Antilles et de la Guyane, UFR des Sciences Exactes et Naturelles, B.P. 592, 97159 Pointe-à-Pitre, Guadeloupe (F.W.I.), 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	Cited By :12; Export Date: 7 February 2017			Approved	no
	Call Number	EcoFoG @ webmaster @			Serial	727
Permanent link to this record



	Author	Leroy, C.; Petitclerc, F.; Orivel, J.; Corbara, B.; Carrias, J.-F.; Dejean, A.; Céréghino, R.
	Title	The influence of light, substrate and seed origin on the germination and establishment of an ant-garden bromeliad			Type	Journal Article
	Year	2017	Publication	Plant Biology	Abbreviated Journal	Plant Biol J
	Volume	19	Issue	1	Pages	70-78
	Keywords	Aechmea mertensii; bromeliad; French Guiana; germination; plant performance; survival
	Abstract	Plant germination and development depend upon a seed's successful dispersal into a suitable habitat and its ability to grow and survive within the surrounding biotic and abiotic environment. The seeds of Aechmea mertensii, a tank-bromeliad species, are dispersed by either Camponotus femoratus or Neoponera goeldii, two ant species that initiate ant gardens (AGs). These two mutualistic ant species influence the vegetative and reproductive traits of the bromeliad through their divergent ecological preferences (i.e. light and substrate). We hypothesised that the seeds dispersed by these two ant species have underlying genetic differences affecting germination, growth and survival of A. mertensii seedlings in different ways. To test this, we used an experimental approach consisting of sowing seeds of A. mertensii: (i) taken from the two AG–ant associations (i.e. seed origin), (ii) in two contrasting light conditions, and (iii) on three different substrates. Light and substrate had significant effects on germination, survival and on eight key leaf traits reflecting plant performance. Seed origin had a significant effect only on germination and on two leaf traits (total dry mass and relative growth rate). Overall, this bromeliad performs better (i.e. high growth and survival rates) when growing both in the shade and in the carton nest developed by C. femoratus ants. These results suggest that the plasticity of the tank bromeliad A. mertensii is mainly due to environment but also to genetic differences related to seed origin, as some traits are heritable. Thus, these two ant species may play contrasting roles in shaping plant evolution and speciation.
	Address
	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	1438-8677	ISBN		Medium
	Area		Expedition		Conference
	Notes				Approved	no
	Call Number	EcoFoG @ webmaster @			Serial	712
Permanent link to this record

Select All Deselect All

[61–70] << 71 72 73 74 75 76 77 78 79 80 >> [81–90]

List View

Citations

Details

All Found Records Selected Records:

Save Citations: Format:

Export Records: Format:

Home

Library Search | Show Record | Extract Citations