Chemical composition of the sponge Hymeniacidon sanguinea from the Canary Islands

Nechev, Jordan; Christie, William W.; Robaina, Rafael R.; Diego, Fernando de; Попов, Симеон; Stefanov, Kamen

doi:10.1016/j.cbpb.2003.10.016

Cited by 35 publications

(38 citation statements)

References 21 publications

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“…Furthermore, although macroalgae constitute the main feeding resource of P. lividus, this sea urchin is an opportunistic species that can exploit other food resources such as microalgae, sponges, hydrozoa or copepods (Boudouresque and Verlaque 2007) whose occurrence could also diVer between both locations. For example, the source of 20:1n-11 found in higher proportions in the gonads of the specimens collected at La Herradura, could be sponges (Nechev et al 2004;Zimmerman et al 1989), that are more abundant at the rocky subtidal areas of La Herradura than at the swallow ponds of Torregorda. And the source of 20:1n-9 could be copepods which it is known to be enriched in this longchain monounsaturated fatty acid (Falk-Petersen et al 1987).…”

Section: Discussionmentioning

confidence: 99%

Males and females gonad fatty acids of the sea urchins Paracentrotus lividus and Arbacia lixula (Echinodermata)

2009

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The aim of this study was to analyze male and female gonad fatty acids of two sea urchin species, Paracentrotus lividus and Arbacia lixula, from the south coast of Spain. Additionally, we investigated possible diVerences between two locations. The ovaries of both species showed higher percentages of 14:0, 16:0, 16:1n-7, 18:2n-6, 18:3n-3 and 18:4n-3 than testes and lower levels of 18:0, 22:1n-9, 20:4n-6 and 22:5n-3. In P. lividus but not in A. lixula, the level of 20:5n-3 was higher in testes than in ovaries. These diVerences between sexes probably indicate diVerent requirements of males and females during gametogenesis although the presence of a large number of gametes in the mature gonad may also have inXuences on fatty acid composition. SigniWcant diVerences in gonad fatty acid proWles where also found when individuals of P. lividus collected at a location of the Mediterranean region were compared with specimens collected at the Atlantic coast. The most remarkable changes were the lower levels of 14:0, 18:1n-7, 20:1n-9, 20:4n-6 and 22:4n-6 and the higher values of 20:1n-11, 20:5n-3 and 22:6n-3 found in males and females of the Mediterranean specimens compared to those of the Atlantic coast. These diVerences probably reXect the diVerences in potential food sources at each location.

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Section: Discussionmentioning

confidence: 99%

Males and females gonad fatty acids of the sea urchins Paracentrotus lividus and Arbacia lixula (Echinodermata)

2009

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“…Antifouling mechanisms affecting the early stages of organisms may differ from those involved in macroinvertebrate settlement. Latitudinal differences can also alter the chemical composition of organisms, as has been suggested for the sponge Aplysina fulva collected on the Brazilian coast (NUÑEZ et al, 2008). Further chemical studies arenecessary to corroborate this conclusion.…”

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confidence: 68%

“…Several compounds have already been reported for the genus Hymeniacidon, such as peptides, alkaloids, lipids and steroids (INABA et al, 1998;GRANATO et al, 2000;NECHEV et al, 2004;BLUNT et al, 2009), but little is known about their ecological roles. Previous studies have shown that L-5-hydroxytryptophan isolated from H. heliophila acts as a protection against UV radiation (LYSEK et al, 2003).…”

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confidence: 99%

“…Further chemical studies arenecessary to corroborate this conclusion. Compounds such as cholestanol, debromohymenialdisine, L-5-hydroxytryptophan and manzacidins A-C have been recorded in species of the genus Hymeniacidon; however, the presence of these substances in H. heliophila from Rio de Janeiro has not yet been confirmed (KITAGAWA et al, 1983;KOBAYASHI et al, 1991;LYSEK et al, 2003;NECHEV et al, 2004).…”

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confidence: 99%

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Antifoulant property of the marine sponge Hymeniacidon heliophila (Demospongiae: Halichondrida)

et al. 2012

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“…Both of these FAs are common in nature and have been reported in sponges previously (Barnathan et al, 1996;Carballeira & Alicea, 2000;Carballeira & Lopez, 1989;Christie et al, 1992;Nechev et al, 2004). Palmitic acid is a precursor with chain elongation, desaturation and addition of side chain modifications possible (Michal & Schomburg, 2013).…”

Section: Fatty Acid and Sterol Compositionmentioning

confidence: 99%

Modelling sponge-symbiont metabolism

Watson¹

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Marine sponges are increasingly being recognised for their nutrient cycling ecosystem services, linking pelagic nutrients with the benthic ecosystem. Furthermore, sponges are the most prolific producers of bioactive secondary metabolites in the marine environment. Despite their ecological and commercial value, little is know about the metabolic processes that are responsible. The inability to produce sufficient sponge biomass, and thus specific bioactive compounds, has been repeatedly identified as a major bottleneck towards commercialising sponge holobiont derived drugs. Likewise, nutrient cycling by sponges has been a relatively recent advancement in marine ecology and the scale of this process is unknown. This thesis takes a systems approach to understanding sponge-symbiont metabolic processes by utilising the genomic resources available for the demosponge Amphimedon queenslandica and its bacterial symbiont AqS1. Specifically, I undertake genome-scale modelling and metabolic flux analyses to investigate the metabolic networks present in this sponge as well as its associated vertically-transmitted microbial symbiont. The goal of this thesis is to generate the data required for, and subsequently develop, a dual-species genome-scale metabolic model for A. queenslandica and AqS1. This will provide a framework to further our understanding of how sponges produce their biomass while living in an oligotrophic, tropical reef environment.To develop a genome-scale metabolic model, the biochemical composition of the organism must first be determined. Knowledge of the relative quantities of macromolecules and their respective building blocks (e.g. protein and amino acids) is vital, as each requires different substrates, enzymes and cofactors for their synthesis. I adapted and developed methods to characterise the composition and abundance of DNA, RNA, protein, lipids and carbohydrates in a marine sponge. These methods are described in detail that allows them to be easily transferred to other, non-model, large marine organisms. This is followed by a detailed analysis of A. queenslandica's macromolecular, amino acid, fatty acid and sterol composition. The biochemical data from this chapter was used to generate a biomass equation that represent the average composition of adult A. queenslandica in the metabolic model. 3To understand how the metabolic network may work towards producing more biomass, it must be considered in the context of the environmental conditions that naturally constrain growth. The dominant environmental constraint on growth on an oligotrophic reef system is nutrient availability.The abundance of key elements, such as carbon and nitrogen, were quantified throughout the course of a year. To investigate effects on the sponge of any changes in nutrient availability, I concurrently sampled sponges and analysed their biochemical composition to the macromolecular level. Chapter 4 presents these data and discusses a number of trends and correlations in the biochemical composition of the sponges with chan...

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Chemical composition of the sponge Hymeniacidon sanguinea from the Canary Islands

Cited by 35 publications

References 21 publications

Males and females gonad fatty acids of the sea urchins Paracentrotus lividus and Arbacia lixula (Echinodermata)

Males and females gonad fatty acids of the sea urchins Paracentrotus lividus and Arbacia lixula (Echinodermata)

Antifoulant property of the marine sponge Hymeniacidon heliophila (Demospongiae: Halichondrida)

Modelling sponge-symbiont metabolism

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