Concise review of the genus Asparagopsis Montagne, 1840

Zanolla, Marianela; Carmona, Raquel; Mata, Leónardo; Rosa, Julio de la; Sherwood, Alison R.; Barranco, Carlos Navarro; Muñoz, Antonio‐Román; Altamirano, Marı́a

doi:10.1007/s10811-021-02665-z

Cited by 20 publications

(29 citation statements)

References 104 publications

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“…However, experts believe that the Falkenbergia stages of both species are indistinguishable [ 36 , 38 ]. A review by Zanolla et al [ 39 ] concisely summarizes what is known about the genetics, phylogeny and phylogeography of the Asparagopsis genus. Preliminary work on the genetic characterization of Asparagopsis spp.…”

Section: The Genus Asparagopsismentioning

confidence: 99%

“…was done by Chualaín et al [ 32 ], who found that the analysis of small subunit rRNA sequences and restriction-fragment-length polymorphisms (RFLPs) allowed distinction between A. armata and A. taxiformis , and that RFLP analysis also allowed the distinction of two clades of A. taxiformis , one found in tropical locations and another in temperate locations. More on this topic can be found in the review by Zanolla et al [ 39 ], which highlights the fact that, despite comprising very few species, the genus Asparagopsis displays remarkable genetic diversity.…”

Section: The Genus Asparagopsismentioning

confidence: 99%

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Asparagopsis Genus: What We Really Know About Its Biological Activities and Chemical Composition

2022

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Although the genus Asparagopsis includes only two taxonomically accepted species, the published literature is unanimous about the invasive nature of this genus in different regions of the globe, and about the availability of large amounts of biomass for which it is important to find a commercial application. This review shows that extracts from Asparagospsis species have already been evaluated for antioxidant, antibacterial, antifungal, antiviral, antifouling, cytotoxic, antimethanogenic and enzyme-inhibitory activity. However, the tables presented herein show, with few exceptions, that the activity level displayed is generally low when compared with positive controls. Studies involving pure compounds being identified in Asparagopsis species are rare. The chemical compositions of most of the evaluated extracts are unknown. At best, the families of the compounds present are suggested. This review also shows that the volatile halogenated compounds, fatty acids and sterols that are biosynthesized by the Asparagopsis species are relatively well known. Many other non-volatile metabolites (halogen compounds, flavonoids, other phenolic compounds) seem to be produced by these species, but their chemical structures and properties haven’been investigated. This shows how much remains to be investigated regarding the secondary-metabolite composition of these species, suggesting further studies following more targeted methodologies.

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Section: The Genus Asparagopsismentioning

confidence: 99%

Section: The Genus Asparagopsismentioning

confidence: 99%

Asparagopsis Genus: What We Really Know About Its Biological Activities and Chemical Composition

2022

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“…In this context, the red alga Asparagopsis taxiformis (Delile) Trevisan, allegedly introduced into the Mediterranean Sea in 1831 (Verlaque et al, 2015) was hardly noticeable in the Israeli shores until about a decade ago. A. taxiformis is highly invasive and has therefore been underpinned as one of the 'worst invasive alien species threatening marine biodiversity in Europe' (EEA, 2007), and further listed within the 100 'worst invasive seaweeds in the Mediterranean Sea' (Streftaris and Zenetos, 2006) A. taxiformis is regarded as a cryptic complex with high diversity and cosmopolitan distribution from warm-temperate to tropical marine environments (Harvey, 1849;Price et al, 1986;Boni and Hawkes, 1987;Silva et al, 1996;Zanolla et al, 2022). The heteromorphic life cycle of A. taxiformis includes the erect gametophyte and a filamentous tetrasporophyte (Mairh, 1977;Guiry and Dawes, 1992).…”

Section: Introductionmentioning

confidence: 99%

“…Tertrasporophytes can be found free-floating or attached to other algae and are capable of dispersion by flotation. The high vegetative reproduction potential of the tetrasphorophyte stage serves as a prolific propagator for expanding population and invasion to new habitats (Chihara, 1961;Mairh, 1977;Zanolla et al, 2022).…”

Section: Introductionmentioning

confidence: 99%

“…To date, worldwide, six mitochondrial lineages have been genetically distinguished in the A. taxiformis populations (Andreakis et al, 2007;Sherwood, 2008;Dijoux et al, 2014;Andreakis et al, 2016;Zanolla et al, 2022). The cox2-3 spacer is considered the ideal marker for this linage separation differing in 6-23 bp out of the 338 bp of cox2-3 spacer marker (Dijoux et al, 2014;Andreakis et al, 2016;Kurihara et al, 2016).…”

Section: Introductionmentioning

confidence: 99%

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A new genetic lineage of Asparagopsis taxiformis (Rhodophyta) in the Mediterranean Sea: As the DNA barcoding indicates a recent Lessepsian introduction

2022

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Asparagopsis taxiformis (Delile) Trevisan is a red marine macroalga (Bonnemaisoniales, Rhodophyta) with high invasive potential and broad worldwide distribution. In the Mediterranean Sea, A. taxiformis was reported before the opening of the Suez Canal and is comprised of two different cryptic lineages, named L2 and L3. As for the Israeli Mediterranean Sea (IMS), A. taxiformis benthic populations have seemingly expanded with several large seasonal blooms recorded in recent years. However, neither ecology nor molecular substantial studies have been conducted for this particular geographical area. Increasing sampling intensity and geographical coverage may reveal new lineages or indicate human-mediated spread routes not only for A. taxiformis but for macroalgae in general. This approach is particularly important in areas such as the eastern Mediterranean Sea, which experiences intense biological invasion on a global scale. In this study, randomly samples specimens (n = 30) of A. taxiformis and preserved herbarium samples (n = 4) collected from the IMS in the past, were all barcoded and taxonomically identified using three molecular genetic markers (LSU, cox2-3 spacer, and rbcL). We found a cryptic lineage 4 (L4) of A. taxiformis first reported here for the Mediterranean Sea, and previously described for the western Indo-Pacific and Hawaii. Herbarium samples confirmed the presence of L4 as early as 2013. Comparative assessment of cox2-3 spacer marker indicates 100% similarity to sequenced L4 samples from Egypt in the Red Sea. The IMS cox2-3 spacer sequences differed from previously sequenced samples from the Mediterranean Sea by 2.3% and 3.9% bp, compared to L3 and L2 Mediterranean populations, respectively. Morphological inspections indicate monoecious L4 gametophytes which are larger than the L4 population reported previously from Hawaii. Altogether, our results strongly indicate a Lessepsian migration route for A. taxiformis L4 with yet unknown consequences for the local marine ecosystems.

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Selection of marine macroalgae for nutrient biofilter and bioproduct trials in the coastal waters of Queensland, Australia

Theobald,

Irving,

Capper

et al. 2024

Aquacult Int

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The capacity of many macroalgae to rapidly absorb soluble inorganic nutrients and convert them into primary biomass provides opportunities for their use in the bioremediation of nutrient-enriched waters. Marine-based macroalgal cultivation has the potential to target diffuse source nutrient discharges and produce valuable bioproducts such as fertiliser, soil conditioning agents and agricultural feed additives and phycocolloids. Whilst macroalgal diversity offers benefits for improving and maintaining healthy marine ecosystems, it also presents a challenge for determining the best candidate species for cultivation as a nutrient biofilter and, ultimately, a source of bioproducts. We developed and applied a multi-criteria selection model to identify likely candidate macroalgal species for cultivation in Queensland’s coastal waters for biofiltration and bioproduct development, focusing on native species and product development for the agronomical and horticultural sectors. From a species database of 1380 macroalgal species, candidates were initially selected based on their regional abundance, distribution and morphological characteristics considered amenable to in-situ cultivation and harvesting. From a resulting shortlist of 17 species, five systematic literature searches were applied to identify biofilter potential, bioproduct potential and current cultivation status. Of the shortlisted species, Ulva lactuca, Gracilaria edulis and Hypnea cervicornis ranked most highly in the multi-criteria analysis, with several other species showing good potential, but requiring further investment in understanding key biological processes and the development of cultivation protocols.

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Concise review of the genus Asparagopsis Montagne, 1840

Cited by 20 publications

References 104 publications

Asparagopsis Genus: What We Really Know About Its Biological Activities and Chemical Composition

Asparagopsis Genus: What We Really Know About Its Biological Activities and Chemical Composition

A new genetic lineage of Asparagopsis taxiformis (Rhodophyta) in the Mediterranean Sea: As the DNA barcoding indicates a recent Lessepsian introduction

Selection of marine macroalgae for nutrient biofilter and bioproduct trials in the coastal waters of Queensland, Australia

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