Water soluble phenolic compounds of the marine phanerogam Posidonia oceanica in a Mediterranean area colonised by the introduced chlorophyte Caulerpa taxifolia

Cuny, Philippe; Serve, Léon; Jupin, Henri; Boudouresque, C. F.

doi:10.1016/0304-3770(95)00504-8

Cited by 62 publications

(55 citation statements)

References 5 publications

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“…Indeed, p-HBA were also detected among the extractable free and ester-bound phenols in previous studies on P. oceanica (Zapata and McMillan 1979;Cariello et al 1979;Cuny et al 1995;Agostini et al 1998;Dumay et al 2004;Pergent et al 2008). …”

Section: Pyrolysis-gc-msmentioning

confidence: 59%

“…This compound was tentatively identified as a tetramethyl-substituted glucopyranoside derivative (Yeloff et al 2008). The NIST '05 library gave a very good correlation with phenyl-O-2,3,4,6-tetra-O-methyl-α-D-glucopyranoside as well, which implies that this compound possibly corresponds to an aromatic glycoside, with a structure similar to that of phloridzin, present in Posidonia leaf extracts (Cuny et al 1995). It was abundant in the outer rhizome (16%) and significant in the leaf blade (2%) as well.…”

Section: Thermally Assisted Hydrolysis and Methylation (Thm-gc-ms)mentioning

confidence: 89%

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Molecular composition of plant parts and sediment organic matter in a Mediterranean seagrass (Posidonia oceanica) mat

et al. 2016

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Molecular composition of plant parts and sediment organic matter in a Mediterranean seagrass (Posidonia oceanica) mat.Aquatic Botany http://dx.doi.org/10. 1016/j.aquabot.2016.05.009 This is a PDF file of an unedited manuscript that has been accepted for publication. As a service to our customers we are providing this early version of the manuscript. The manuscript will undergo copyediting, typesetting, and review of the resulting proof before it is published in its final form. Please note that during the production process errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain. Graphical abstract Highlights-Analytical pyrolysis applied to Posidonia seagrass organs and marine mat deposit -Posidonia phenolic composition dominated by p-hydroxybenzoic acids -Peat-like mat deposits composed predominantly of root, rhizome and sheath materials -We suggest a link between Posidonia chemistry and C accumulation in mats AbstractPosidonia oceanica forms extensive peat-like deposits (mats) in Mediterranean coastal waters, which have a potential as carbon sinks and archives of environmental change.Nonetheless, the organic chemistry of both P. oceanica plant materials, as well as the environmental and diagenetic effects on the composition of its detritus, is poorly understood.We analyzed plant organs of P. oceanica and the coarse organic matter from a mat core spanning 750 yrs using pyrolysis techniques (PY-GC-MS and THM-GC-MS) to improve our understanding of their molecular properties and their preservation upon mat development. It

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Section: Pyrolysis-gc-msmentioning

confidence: 59%

Section: Thermally Assisted Hydrolysis and Methylation (Thm-gc-ms)mentioning

confidence: 89%

Molecular composition of plant parts and sediment organic matter in a Mediterranean seagrass (Posidonia oceanica) mat

et al. 2016

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“…our study at the invaded site shows that the high biomass of C. taxifolia able to grow inside P. oceanica beds not only interacts physiologically with the plant (Cuny et al, 1995;Villèle and Verlaque 1995;dumay et al, 2002) but can also change the structure of the invaded bed. The structural impact seems to be slow for several years between the beginning of the invasion and the record of the first changes in the structure of the P. oceanica bed.…”

Section: Ramificationsmentioning

confidence: 81%

Alterations of the structure of <em>Posidonia oceanica</em> beds due to the introduced alga <em>Caulerpa taxifolia</em>

Molenaar¹,

Meinesz²,

Thibaut³

2009

Sci. Mar.

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ea 4228 eCoMers, laboratoire environnement Marin littoral, université de nice-sophia antipolis, Faculté des sciences, Parc Valrose, 06108 nice cedex 02, France. e-mail: thierry.thibaut@unice.fr suMMary: The impact of Caulerpa taxifolia on the structure of shallow Posidonia oceanica beds was studied in permanent quadrats from 1995 to 2005 at the invaded site of Cap Martin and the control site of Cap d'antibes (French riviera, France). The cover of C. taxifolia, shoot density, number of orthotropic and plagiotropic shoots and proportion of ramifications of P. oceanica were measured yearly. The cover of C. taxifolia in the invaded zone rapidly reached a maximum of infestation in 2000 with 93% of the quadrats covered by the alga. in 2001 an unexplained phenomenon led to a sharp decrease in the infestation and in the following years the colonisation remained low. Within the 10 years of the study, P. oceanica did not disappear from the permanent quadrats, but we observed a drastic change in the structure of the meadow invaded by C. taxifolia. between 1999 and 2000 a decrease in the shoot density observed at both sites was probably related to the warm temperature event recorded in 1999 (from 636 to 143 shoots m -2 at the invaded site and from 488 to 277 at the control site). at the invaded site, the seagrass never recovered its initial density even after a sharp decrease in C. taxifolia. The orthotropic/ plagiotropic shoot ratio was strongly modified at the invaded site, where plagiotropic shoots became dominant because of an increase in their ramification.Keywords: Caulerpa taxifolia, Posidonia oceanica, competition, ecological impact.resuMen: Alteraciones en la estructura de praderas de Posidonia oceanica debido al alga introducida caulerPa taxifolia. -el impacto de Caulerpa taxifolia sobre la estructura de la comunidad de Posidonia oceanica poco profunda se estudió entre 1995 y 2005 mediante parcelas permanentes en una zona invadida de Cap Martin y una zona control en Cap d'antibes (riviera Francesa, Francia). Para ello, se midieron anualmente la densidad de C. taxifolia, y la densidad de haces, el número de haces ortotrópicos y plagiotrópicos y la proporción de ramificaciones de P. oceanica. la densidad de C. taxifolia en la zona invadida alcanzó un máximo en 2000, con una cobertura del 93%, y a partir del año 2001 disminuyó drásticamente, dejando valores relativamente bajos en los años siguientes. durante los 10 años de estudio, la pradera de P. oceanica no desapareció en las zonas invadidas por C. taxifolia, aunque se observaron cambios drásticos en su estructura. en 2000, se observó una disminución en la densidad de haces de P. oceanica, coincidiendo con la máxima cobertura de C. taxifolia (de 636 a 143 haces m -2 en la zona invadida y de 488 a 277 en la zona control). entre 1999 y 2000 en los dos sitios se observó una disminución de la densidad probablemente relacionada con las altas temperaturas registradas en 1999. la densidad de haces de P. oceanica no recuperó los valores iniciales, incluso después de la di...

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“…Three samples were collected from each site, and each sample consisted of at least 0.5 g dry wt (Cuny et al, 1995) of eight to ten sterile (non-reproductive) shoots which were separated into above-and below-ground parts. Above-ground tissue consisted of the foliage leaf (i.e.…”

Section: Site Location and Sample Collectionmentioning

confidence: 99%

“…For P. oceanica, extraction of total phenolic compounds was carried out on 0.5 g dry wt freeze-dried foliage leaf or sheath tissue. Extraction followed Cuny et al (1995) and consisted of infusing each sample at 40°C in 50 % (v/v) aqueous ethanol in darkness for 3 h. The extract was acidified with a few drops of 2N HCl, the ethanol was evaporated under vacuum, and the aqueous residue extracted with ethanol/acetic acid. The organic phase was dried using anhydrous Na 2 SO 4 .…”

Section: Extraction and Determination Of Phenolic Content In The Tissmentioning

confidence: 99%

Posidonia oceanica and Zostera marina as Potential Biomarkers of Heavy Metal Contamination in Coastal Systems

Ferrat¹,

Willie-Echevarria²,

Cates³

et al. 2012

Ecological Water Quality - Water Treatment and Reuse

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Water soluble phenolic compounds of the marine phanerogam Posidonia oceanica in a Mediterranean area colonised by the introduced chlorophyte Caulerpa taxifolia

Cited by 62 publications

References 5 publications

Molecular composition of plant parts and sediment organic matter in a Mediterranean seagrass (Posidonia oceanica) mat

Molecular composition of plant parts and sediment organic matter in a Mediterranean seagrass (Posidonia oceanica) mat

Alterations of the structure of <em>Posidonia oceanica</em> beds due to the introduced alga <em>Caulerpa taxifolia</em>

Posidonia oceanica and Zostera marina as Potential Biomarkers of Heavy Metal Contamination in Coastal Systems

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