Antioxidant response of the seagrass Posidonia oceanica when epiphytized by the invasive macroalgae Lophocladia lallemandii

Sureda, Antoni; Box, Antonio; Terrados, Jorge; Deudero, Salud; Pons, Antoni

doi:10.1016/j.marenvres.2008.05.009

Cited by 65 publications

(37 citation statements)

References 36 publications

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“…2 The major action of antioxidants in cells is to prevent the damage caused by the action of reactive oxygen species. Several synthetic antioxidants, such as Butylated hydroxyl anisol (BHA), Butylated hydroxytolune (BHT) and Tetra butyl hydroquinone (TBHQ) are commercially available and are currently in use.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of In-vitro Antioxidant Activity of Seagrasses: Signals for Potential Alternate Source

Danaraj

Subhashini

Raja

et al. 2016

FRA

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Background and Aim: Natural antioxidants have gained unique attention in recent years. Because of the carcinogenicity of synthetic compounds, there is a dearth for antioxidants from natural origin. Currently, seagrasses, the marine plants have gained attention for their secondary metabolites. Hence, the present study aims to examine in vitro antioxidant activity of both leaf and rhizome extracts of six seagrass species and has not yet been investigated. Methods: Crude methanolic extracts of leaf and rhizome obtained, were evaluated for total phenolic contents using Folin-Ciocalteaus method. Antioxidant potential of seagrass extracts were evaluated using total antioxidant activity, DPPH, FRAP, ABTS assay, H 2 O 2 and NO 2 scavenging assay and the phenolic compounds present in potent extracts were profiled by HPLC. Results: Maximum phenolic content and antioxidant activity was exhibited by leaf and rhizome extracts of C. rotundata followed by H. uninervis. Higher DPPH radical scavenging activity was found in leaf (78.84 ± 0.87) and rhizome extracts (75.480 ± 0.97) of C. rotundata and the lowest scavenging activity was found in the leaf and rhizome extracts of H. ovata (12.01 ± 0.63 and 5.769 ± 1.14). Among six species, C. rotundata exhibited higher radical scavenging activity containing the potential phenolic compounds. Conclusion: Present study portrays that leaf and rhizome extracts of C. rotundata acts as a potential source of antioxidant compounds with predominant presence of caffeic acid and ρ-coumaric acid that paves a way for the application of these compounds in both food and pharmaceutical industries as a multipotent antioxidant.

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Section: Introductionmentioning

confidence: 99%

Evaluation of In-vitro Antioxidant Activity of Seagrasses: Signals for Potential Alternate Source

Danaraj

Subhashini

Raja

et al. 2016

FRA

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“…Until now, in the Mediterranean Sea, invasive events by L. lallemandii have only been described in the Balearic Islands (Patzner, 1998, Cebrian and Ballesteros 2010, Marbà et al 2014 and in the Tuscan Archipelago (Bedini et al 2011). In both areas, the alga is able to reach high values of percentage cover and biomass (Bedini et al 2011) on rocky bottoms and in seagrass meadows , Sureda et al 2008, Marbà et al 2014. Cystoseira beds are particularly subjected to invasion Ballesteros 2007, Bedini et al 2011), as thalli of these algae may offer a valuable substrate for L. lallemandii anchoring (Bedini et al 2011).…”

Section: Introductionmentioning

confidence: 99%

Mobile epifaunal assemblages associated with <em>Cystoseira</em> beds: comparison between areas invaded and not invaded by <em>Lophocladia lallemandii</em>

Bedini¹,

Bonechi²,

Piazzi³

2014

Sci. Mar.

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Summary:The study compared the structure of mobile epifaunal assemblages associated with Mediterranean Cystoseira beds between areas invaded and not invaded by Lophocladia lallemandii. A total of 150 taxa were identified: 42 Polychaeta, 78 Arthropoda, 26 Mollusca and 4 Echinodermata. Epifaunal assemblages differed between areas invaded and not invaded by Lophocladia lallemandii when the invasive species reached maximum values of cover and biomass, while differences between conditions were not significant in other periods of the year. The main differences were the greater abundance of amphipods, isopods and polychaetes in invaded areas and the greater abundance of molluscs and decapods in non-invaded areas, while richness and total abundance of organisms were not significantly different between conditions. The effects of Lophocladia lallemandii invasion on Cystoseira-associated assemblages seem to be limited to the period of vegetative growth of the alga and reversible during the period of its vegetative rest.Keywords: biological invasions; Cystoseira crinita; Lophocladia lallemandii; Mediterranean Sea; mobile epifauna. Comunidad de epifauna móvil asociada a las bosques de Cystoseira: comparación entre áreas invadidas y no invadidas por Lophocladia lallemandiiResumen: Este estudio compara la estructura de la comunidad de macroinvertebrados móviles asociada a bosques mediterráneos de Cystoseira entre áreas invadidas por Lophocladia lallemandii y áreas no invadidas. Se identificaron un total de 150 táxones: 42 Polychaeta, 78 Arthropoda, 26 Mollusca, 4 Echinodermata. La comunidad epifaunal difirió entre áreas invadidas por Lophocladia lallemandii y áreas no invadidas cuando la Rhodophyta introducida alcanzó valores máximos de cobertura y biomasa, mientras que no presentó diferencias entre condiciones en otros períodos del año. Estas diferencias fueron principalmente debidas a una mayor abundancia de anfípodos, isópodos y poliquetos en áreas invadidas, y de moluscos y decápodos en áreas no invadidas, mientras que la riqueza y abundancia total de organismos no presentaron diferencias significativas entre condiciones. Los efectos de la invasión de Lophocladia lallemandii sobre las comunidades asociadas a Cystoseira parecen estar restringidos al período de crecimiento vegetativo del alga, siendo reversibles durante el período de pausa de crecimiento.

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“…Caulerpa species are characterized by the presence of secondary metabolites, such as caulerpenyne (CYN), the main function of which is a chemical defence mechanism against herbivores and epiphytes Sureda et al, 2008Sureda et al, , 2009. A variety of toxic effects due to CYN have been demonstrated, in particular on the sea urchin Paracentrotus lividus, e.g.…”

Section: Introductionmentioning

confidence: 99%

Description of a new marine diatom,Cocconeis caulerpacola sp. nov. (Bacillariophyceae), epiphytic on invasiveCaulerpaspecies

Car

Witkowski

Dobosz

et al. 2012

European Journal of Phycology

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A new species of Cocconeis has been found growing on thalli of the invasive green alga Caulerpa taxifolia collected from the Croatian Adriatic Sea (Bay of Stari Grad, the Island of Hvar, Central Adriatic, Croatia), the coasts of the Mediterranean (Saint Raphae¨l, west of Cannes, France) and the eastern coast of Australia (Moreton Bay, southeast Queensland). Additionally, it was observed on samples of Caulerpa racemosa, another invasive alga in the Mediterranean. Preserved thalli of Caulerpa and cleaned material of the new diatom were studied by light and electron microscopy (SEM and TEM). The morphology and fine structure of the new marine epiphytic diatom, for which we propose the name Cocconeis caulerpacola Witkowski, Car & Dobosz, was determined, including the internal and external structure of the raphe and sternum valve, and the cingulum. Comparison between the new species and three closely related species, C. borbonica, C. diruptoides and C. pseudodiruptoides, was made using material from our samples, as well as material from Vis (Adriatic Sea) obtained from the Hustedt collection. Surprisingly, C. caulerpacola is able to colonize Caulerpa taxifolia in very high abundance, but its occurrence seems to be strongly patchy. Indeed, it seems that C. taxifolia is a suitable host for epiphytic diatoms, in particular this tiny Cocconeis, despite its reputation as a 'killer seaweed'. Cocconeis caulerpacola was observed on Caulerpa species in varying abundance over a wide geographical range.

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Antioxidant response of the seagrass Posidonia oceanica when epiphytized by the invasive macroalgae Lophocladia lallemandii

Cited by 65 publications

References 36 publications

Evaluation of In-vitro Antioxidant Activity of Seagrasses: Signals for Potential Alternate Source

Evaluation of In-vitro Antioxidant Activity of Seagrasses: Signals for Potential Alternate Source

Mobile epifaunal assemblages associated with <em>Cystoseira</em> beds: comparison between areas invaded and not invaded by <em>Lophocladia lallemandii</em>

Description of a new marine diatom,Cocconeis caulerpacola sp. nov. (Bacillariophyceae), epiphytic on invasiveCaulerpaspecies

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