In continuing your browsing of this site, you accept the use of cookies to offer you suitable content and services and realize visits statistics. Disclaimer: ITIS taxonomy is based on the latest scientific consensus available, and is provided as a general reference source for interested parties. Other marine fauna occasionally found on Sargassum in Singapore. Sargassum taxa were boxed in red. Active compound Fucoxanthin and its effect on obese adipose tissue. A) Neighbour- joining tree represented for concatenated dataset of ITS-2, cox3 and rbc-LS alignment. : 304 (1824), synonyms: S. brevifolium Grev. Morphology of the seaweeds was observed and cross Fig. (1849), S. ambiguum Sond. Left - Photo credit: Ria Tan from WildSingapore blog. [...] Key Result A total of six morphotypes, Sargassum aquifolium (Turner) C.Argardh (1820), S. cf . B) Phylogenetic reconstruction of Sargassum (Phaeophyceae) with Turbinaria as outgroup, based on a maximum likelihood (ML) analysis of the concatenated ITS-2 + rbcLS + cox3 alignment. B) Chronogram of the BACR from a Bayesian relaxed molecular clock analysis using BEAST. Fig. However, it is not a legal authority for statutory or regulatory purposes. 8 Sargassum polycystum C.A. (Adapted from Silberfeld et al., 2010). You are currently offline. They reside in the family Sargassaceae and Sargassum polycystum is nested within the revised Subgenus Sargassum and lower level Section Polycystae which consists of other members: S. herporhizum and S. plagiophyllum [ 5]. Scale bar: thallus = 5 cm; leaves = 1 cm; vesicles = 2 mm. ... To come to a critical revision of Sargassum taxonomy a wide field knowledge is needed of developmental stages and ecological variations, together with a study of the type specimens. Sargassum oligocystum grew on coral reef flats, coral blocks, or on rocks in the bay and was found at a depth of 0.5 to 3 m in the subtidal zone (Fig. Agardh, S. longifructum Tseng et Lu, S. oligocystum Montagne, S. polycystum C.A. Section Polycystae of the maximum likelihood tree with Sargassum granuliferum sequences boxed in red, accompanied with morphological features of S. granuliferum below the tree. Semantic Scholar is a free, AI-powered research tool for scientific literature, based at the Allen Institute for AI. Right: Imaged by Yip Zhi Ting. Morphology of the A) leaves, B) vesicles, C) stem, D) holdfast and E) thallus of Sargassum polycystum. Mnemonic i-Taxon identifier i: 3015: Scientific name i: Sargassum: Taxonomy navigation › Sargassaceae. Agardh, S. siliquosum J.G. Taxonomy history synthesis for taxa sequenced since year 2000. All samples were identified by using the standard taxonomy key (Trono and Fortes, 1988; Tsutsui et al., 2005). Fig. The genus Sargassum was erected by C Agardh (1820) and the type species is Sargassum bacciferum (Turner) C. Agardh (=Sargassum natans (Linnaeus) Gaillon). Common epifauna associated with Sargassum: A) Decapods, B) gastropods, C) isopods, D) amphipods, E) tanaids, F) polychaetes, G), anemone, H) polyclads. Matted piles swamped coastlines from Tobago to … Map of Singapore with inset showing its location within Southeast Asia. Morphological characteristics of Sargassum baccularia (Mertens) C.A. Here, the brown alga Sargassum polycystum is used as a model to identify putative marine glacial refugia and explore biogeographical patterns driven by climate change in the late Pleistocene ice ages. 5. (2014) under Creative Commons License. Agardh, S. swartzii (Turner) C.A. 6. which reproduce on high seas) and form the Sargasso Sea in the North Atlantic Ocean. In the study, phylogenetic patterns of S. polycystum were investigated using different genetic markers of mitochondrial DNA (cox1 and cox3) and nuclear DNA (ITS2). Published in Journal of Applied Phycology 2008. Chlorophyceae and Phaeophyceae, Taxonomy of economic seaweeds : with reference to some Pacific and Caribbean species, Contribution à l'étude des algues littorales du Vietnam 1: le genre Sargassum, Sargassum specimens from Singapore and Malaysia in the herbarium of the Bishop Museum, 1995a) Studies of two zygocarpic species of Sargassum (subgenus Sargassum) from Vietnam, Species of Sargassum subgenus Sargassum (Fucales) with compressed primary branches, Studies on Chinese species of Zygocarpic Sargassum. Sargassum belongs to a higher order, Fucales which is part of the group of brown algae (Phaeophyta). gassum swartziiThe purposes of this study are: 1) to know the mor-photaxonomy of the genus Sargassum spp. (Source: Creative Commons by Engineering at Cambridge), Source: https://www.itis.gov/servlet/SingleRpt/SingleRpt?search_topic=TSN&search_value=203831#null, Fig. in Kampani coastal areas. Photos courtesy of Ria Tan from WildSingapore blog. Sargassum ambiguum Sonder, 1871 Sargassum brevifolium Grev., 1849 Sargassum elegans Grev., 1849 Sargassum gaudichaudii Mont., 1842 Sargassum myriocystum f. horridula Grunow Sargassum myriocystum var. Agardh, S. binderi Sonder, S. cinereum J.G. Classification : Eukarya - Bikonta - Stramenopiles - Ochrophyta - Phaeista - Phaeophyceae - Fucales - Sargassaceae - Sargassum Sargassum habitat is still so poorly studied. Taxonomy - Sargassum (GENUS) ))) Map to UniProtKB (2,345) Unreviewed (2,345) TrEMBL. Records are from published literature and herbarium input, hence it is by no means a complete representation of its full range. Mar. Agardh, S.crassifolium J.G. Global geographic distribution of Sargassum polycystum (GBIF Secretariat, 2017) [12]. ... Sargassum polycystum C.A. Potential disease prevention and management, Potential in the medical and pharmaceutical fields, https://www.cites.org/eng/app/appendices.php. 3. Our study on the phylogeographical pattern of the brown macroalga Sargassum polycystum using nuclear Internal Transcribed Spacer 2 (ITS2), plastidal RuBisCO spacer (Rub spacer) and mitochondrial cytochrome oxidase subunit-III (Cox3) as molecular markers revealed genetic homogeneity across 27 sites in Southeast Asia and western Pacific, in sharp contrast to that revealed … (Source: Creative Commons Attribution License, Maeda, H., et al. elegans Grunow, 1915 Sargassum opacum J.Agardh, 1889 Sargassum polycystum var. The alginate content is strongly related to part of the thalli being extracted, a method of extraction, and the seaweeds cultivation area (Zailanie et al. Seaweed has been used as a revolutionary skin repairing agent in both traditional and modern preparations. 8. 2). Eleven populations Disclaimer: ITIS taxonomy is based on the latest scientific consensus available, and is provided as a general reference source for interested parties. There is however, hope for these areas to be protected and conserved as it has been recognised as an, Mainly found on the Southern shores like Labrador on mainland Singapore, and on our offshore islands like Sentosa, St. John's Island, and Sister's Island and, Ecological interactions involving macroalgae are critical on coral reefs as coral-algae phase shifts follow environmental disturbances and may have considerable effects on reef coral community structure, Diversity assessments on this genus of brown algae remains a challenge due to species identification using morphological features. Photos A to H imaged by Gan Su Xuan except photo E (Source: Creative Commons by bathyporeia). The Sargasso Sea in the western Atlantic Ocean, which is often characterized by floating masses of Sargassum natans and S. fluitans, is named for the seaweed. Fig. In this study, seaweeds Sargassum polycystum and Padina tenuis were investigated for their in vitro and in vivo potentials in working as skin whitening agents. In continuing your browsing of this site, you accept the use of cookies to offer you suitable content and services and realize visits statistics. Potential distributions of S. horneri (black solid lines) estimated from distribution ranges of water temperature in February (minimum water temperature in a year) and in August (maximum temperature in a year), 2050 (left) and 2100 (right) based on simulation results of 12 models under A2 scenario. The preference for a fairer skin-tone has become a common trend among both men and women around the world. Agardh and one unidentified species were examined and are described in detail. Numerous species are distributed throughout the temperate and tropical oceans of the world, where they generally inhabit shallow water and coral reefs, and the genus is widely known for its planktonic (free-floating) species. Sargassum polycystum on a rocky shore at Tanjung Rimau, Sentosa (Author’s own collection). It rarely grew on small coral pieces where the flow of the seawater was slow. (Photo credit: Dr. Tay Y.C.). Phylogenetic tree of representative sequences from each haplotype of combined ITS2, Rub spacer and Cox3 sequences from Sargassum polycystum with other Sargassum spp. Ten species of Sargassum (Sargassaceae, Phaeophyceae) were found along the Gulf of Thailand. 4. Fig. Background. Notes on Taxonomy and Nomenclature Top of page. The Sargasso Sea is made up of huge masses of floating Sargassum. 2. Sargassum polycystum Orbitrap LC-MS/MS Carotenoid Eucheuma denticulatum Antioxidant ABSTRACT Three species of Malaysian edible seaweed (Eucheuma denticulatum, Sargassum polycystum and Caulerpa lentillifera) were analyzed for their carotenoid composition using a combination of high-performance thin layer chroma- S. polycystum samples were collected from Teluk Kemang (TK) and Cape Rachado (CR), while P. australis samples were collected from CR in February 2009. Hijiki salad (Source: Creative Commons by Kirk K). Fig. Drugs 2015, 13, 4799-4813), A piece of transparent electrospun gelatin fibre-alginate hydrogel composite to be used as a scaffold to construct a cornea equivalent, which could be used for corneal transplantation when donor cornea is not available. in subgenus Sargassum. 1. Sargassum polycystum C. Agardh is one species of the brown seaweeds (Phaeophyceae), an alginate producer, an important chemical compound since it has high economic value. Branch label indicates the maximum likelihood bootstrap support and posterior probability in Bayesian inference. 10. Thallus with stem, leaf and vesicle morphology of Singapore taxa: A) Sargassum aquifolium, B) S. swartzii, C) S. polycystum, D) S. cf. Agardh. 9. Life cycle of the macroalgae genus Sargassum (Nguyen, 2015). (Image by: Yip Zhi Ting). Two Sargassum species (S. baccularia and S. polycystum) collected from Teluk Kemang and Cape Rachado, Port Dickson, Negeri Sembilan, Malaysia, which are alike in morphology except for the rhizoidal system and vesicles, were characterised using random amplified polymorphism DNA (RAPD). Fig. Sightings were denoted by circles (Yip, 2017). 7. Bootstrap proportions indicated for maximum parsimony (MP)/ maximum likelihood (ML) when >0.5 and posterior probabilities for Bayesian inference (BI) when >0.8 for nodes at the species level and above (Yip, 2017). granuliferum, E) S. ilicifolium, F) S. sp. a Habit, b leaves, c vesicles, d male receptacles (arrowhead), e transverse section of male receptacle showing male conceptacles (arrowhead), f female receptacles (arrowhead), g…, View 2 excerpts, cites methods and background, View 3 excerpts, cites methods and background, In Abbott IA (ed) Taxonomy of Economic Seaweeds with Reference to Some Pacific Species. Morphological field guide for the identification of Singapore Sargassum species (Diagram by Yip Zhi Ting). Sargassum polycystum C. Agardh is the most abundant species, which is likely to be an excellent model for studying distribution pattern and population connectivity. Fairer skin-tone has become a common trend among both men and women around the world consensus,! 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