Bangia
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Bangia | |
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Bangia fuscopurpurea | |
Scientific classification![]() | |
Clade: | Archaeplastida |
Division: | Rhodophyta |
Class: | Bangiophyceae |
Order: | Bangiales |
Family: | Bangiaceae |
Genus: | Bangia Lyngbye,1819[1] |
Type species | |
Bangia atropurpurea[3] | |
Species | |
Synonyms[4] | |
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Bangiais an extant genus of divisionRhodophytathat grows in marine orfreshwaterhabitats.Bangiahas small thalli with rapid growth and high reproductive output, and exhibits behavior characteristic ofr-selectedspecies. The plants are attached by down-growingrhizoids,usually in dense purple-black to rust-colored clumps. The chloroplasts ofBangia,like others in the division Rhodophyta, containchlorophyll aand sometimeschlorophyll d,as well as accessory pigments such asphycobilinpigments andxanthophylls.Depending on the relative proportions of these pigments and the light conditions, the overall color of the plant can range from green to red to purple to grey; however, the red pigment,phycoerythrin,is usually dominant.
Species
[edit]- Bangia aeruginosaSprengel
- Bangia amethystinaKützing
- Bangia anisogonaMeneghini
- Bangia annulina(Roth)Sprengel
- Bangia atropurpurea(MertensexRoth)C.Agardh[5]
- Bangia atropurpurea f. ferrugineaMigula
- Bangia atropurpurea f. muscicolaMarcucci&Beccari
- Bangia atropurpurea f. tenuisCollins
- Bangia atropurpurea subsp. brevisegmentaWomersley
- Bangia atropurpurea subsp. coccinea(Kützing)De Toni
- Bangia atropurpurea subsp. roseopurpurea(Kützing)De Toni
- Bangia atropurpurea var. anisogona(Meneghini)Kützing
- Bangia atropurpurea var. breviarticulataBaglietto
- Bangia atropurpurea var. coccineopurpurea(Kützing)Rabenhorst
- Bangia atropurpurea var. elongataBrébisson
- Bangia atropurpurea var. elongataC.Agardh
- Bangia atropurpurea var. ferruginea(Kerner)Rabenhorst
- Bangia atropurpurea var. heteronemaDerbès&Solier
- Bangia atropurpurea var. muscicolaDe Notaris
- Bangia atropurpurea var. pacificaJ.Agardh
- Bangia atropurpurea var. roseopurpurea(Kützing)Rabenhorst
- Bangia atrovirensLyngbye
- Bangia biseriataMeneghini
- Bangia breviarticulataC.K.Tseng
- Bangia callicomaMeneghini
- Bangia carnea(Dillwyn)Harvey
- Bangia coccineopurpureaKützing
- Bangia condensataZanardini
- Bangia confervoidesZanardini
- Bangia crispulaChauvin
- Bangia discoideaA.Aziz
- Bangia duraZanardini
- Bangia enteromorphoidesE.Y.Dawson
- Bangia fergusoniiGrunow
- Bangia ferrugineaKerner
- Bangia flocculosaSchousboe
- Bangia foetidaSprengel
- Bangia foetidaSteudel
- Bangia foliaceaSchousboe
- Bangia fulvescens(C.Agardh)J.Agardh
- Bangia fuscopurpurea(Dillwyn)Lyngbye
- Bangia fuscopurpurea f. viridisWittrock&Nordstedt
- Bangia fuscopurpurea var. concatenataKützing
- Bangia fuscopurpurea var. crinalisDe Notaris
- Bangia fuscopurpurea var. crispaHolmes&Batters
- Bangia fusco-purpurea var. fuscensesW.J.Hooker
- Bangia fuscopurpurea var. jadertinaKützing
- Bangia fuscopurpurea var. pilosellaArdissone
- Bangia fuscopurpurea var. setaceaKützing
- Bangia gloiopeltidicolaTanaka
- Bangia grateloupicolaP.Crouan&H.Crouan
- Bangia halymeniaeM.J.Wynne
- Bangia harveyiAreschoug
- Bangia homotrichoidesKützing
- Bangia intricataBrébisson&Godey
- Bangia intricataSuhrexRabenhorst
- Bangia kerkensisMeneghini
- Bangia lacustrisCarmichael
- Bangia lanuginosaHarvey
- Bangia latissimaMeneghini
- Bangia malacensis(Kützing)Kützing
- Bangia maximaGardner
- Bangia punctulataSchousboe
- Bangia purpureaSchousboe
- Bangia quadripunctataLyngbye
- Bangia radiculaB.F.Zheng&J.Li
- Bangia sericeaBory
- Bangia simplexA.H.S.Lucas
- Bangia tanakaePham-Hoàng Hô
- Bangia tavarisiiWelwitsch
- Bangia tenuisN.L.Gardner
- Bangia thaerasiaeBory
- Bangia trichodesSchousboe
- Bangia vermicularisHarvey
- Bangia viridisLyngbye
- Bangia yamadaeTanaka
Description
[edit]Bangiais a red alga that arises from a discoid holdfast and short stipe consisting of the extensions of rhizoidal cells. Bangia has unbranched, erect thalli forming initially uniseriate filaments becoming multiseriate at maturity. The plant is composed of filiform, unbranched cylinders of cells embedded in a firm gelatinous matrix. The cell contains a stellate chloroplast with prominent pyrenoid, as well as single thylakoids (characteristic of division Rhodophyta). The growth ofBangiais diffuse and intercalary, and each cell is quadrate to rectangular in shape. Primary pitt connections are absent in all but the conchocelis stage.
Distribution
[edit]Bangiagrows in freshwater or in marine habitats, usually forming dense clumps or mats, and occur throughout the intertidal area and subtidally to the maximum depth at which benthic algae occur. The plants are usually attached to a solid substratum (rock or shell), but can also occur as epiphytes attached to other algae.
Ecology
[edit]Marine populations ofBangiain the Atlantic Ocean are common food for the periwinkleLittorina littorea.
Reproduction
[edit]Species ofBangiaundergo a heteromorphic alternation of generation life cycle in which the haploid generation is dominant. Reproduction can be either sexual or asexual; sexual plants occur mainly during the cold season of the year, while at other times the thalli often bear monosporangia only. Bangia, like all Rhodophytes, lack motile sperm and so depend upon water currents to transport their gametes to the trichogyne (receptive area of the female gamete orcarpogonium).
All sexual reproduction in rhodophytes is oogamous. Carposporangia are formed through direct division of the zygote.Carposporesgerminate to form the diploid filamentous conchocelis phase, which produces conchosporangial branches bearing conchosporangia, each containing a single conchospore. These conchospores then germinate to form gametophytes. During the "conchocelis stage", the plants can also self-replicate using monospores. The monospores develop directly into new plants and may germinate within the sporangia.
Scientific interest
[edit]Silicified peritidal carbonate rocks have been found offSomerset Island,arctic Canada, which contain fossils of well-preserved bangiophyte red algae (Bangiomorpha). Because these fossils have multiseriate filaments derived by longitudinal divisions from uniseriate filaments, taxonomists believe that these fossils are related toBangia.This resolution distinguished these fossils from other pre-Ediacaran eukaryotes and contributes to evidence that multicellular algae diversified before the Ediacaran radiation of large animals.
Related genera
[edit]BangiadulcisandPseudobangiawere previously thought to be part of the genusBangia.However, it has since been discovered that these plants can only undergo asexual reproduction through the formation of archaeosporangia. In fact, sexual reproduction has so far only been recorded inBangia,Porphyra,ErythrotrichiaandErythrocladia.
Etymology
[edit]The genus was named afterNiels Hofman Bang(1803–1886), the Danish patron ofHans Christian Lyngbye,who described the genus.[6]
References
[edit]- ^Lyngbye, H.C. (1819). Tentamen hydrophytologiae danicae continens omnia hydrophyta cryptogama Daniae, Holsatiae, Faeroae, Islandiae, Groenlandiae hucusque cognita, systematice disposita, descripta et iconibus illustrata, adjectis simul speciebus norvegicis. pp. [i]-xxxii, [1]-248, 70 pls. Hafniae [Copenhagen]: typis Schultzianis, in commissis Librariae Gyldendaliae.https://img.algaebase.org/pdf/25E4D8D711cd6252F2pT5D060A8A/13523.pdf
- ^abGuiry, M.D. & Guiry, G.M. 2019. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway.http:// algaebase.org/search/genus/detail/?genus_id=33891;searched on 13 June 2019.
- ^Pfeiffer, L. (1871-1873). Nomenclator botanicus. Nominum ad finem anni 1858 publici juris factorum, classes, ordines, tribus, familias, divisiones, genera, subgenera vel sectiones designantium enumeratio Alpha betica. Adjectis auctoribus, temporibus, locis systematicis apud varios, notis literariis atque etymologicis et synonymis. Vol. 1 pp. [i-vi], [1]-808. Cassellis [Cassel]: Sumptibus Theodori Fischeri [Theodor Fischer].
- ^Guiry, M.D. & Guiry, G.M. (2019). AlgaeBase. World-wide electronic publication, National University of Ireland, Galway (taxonomic information republished from AlgaeBase with permission of M.D. Guiry). Bangia Lyngbye, 1819. Accessed through: World Register of Marine Species at:http:// marinespecies.org/aphia.php?p=taxdetails&id=143807on 2019-06-13
- ^Boelens, G., Boelens, R., Minchin, B. and Minchin, D. 2014Bangia atropurpurea(Maertens ex Roth) C. Agardh (Rhodophyta) in the Grand Canal, Ireland.Ir. Nat. J.33:128 - 129
- ^Burkhardt, Lotte (2022).Eine Enzyklopädie zu eponymischen Pflanzennamen[Encyclopedia of eponymic plant names](pdf)(in German). Berlin: Botanic Garden and Botanical Museum, Freie Universität Berlin.doi:10.3372/epolist2022.ISBN978-3-946292-41-8.S2CID246307410.RetrievedJanuary 27,2022.
- Brodie, Juliet A., and Irvine, Linda M. “Volume I Rhodophyta Part 3B Bangiophycidae.” Seaweeds of the British Isles. The Natural History Museum. St. Edmundsbury Press Ltd., 2003. pp 91–92
- Butterfiled, Nicholas J; Knoll, Andrew H; Sweet, Keene. “A Bangiophyte Red Alga from the Proterozoic of Arctic Canada.” Science, New Series, Vol. 250, No. 4977, 1990. pp 104–107
- Fritsch, F.E. “Structure and Reproduction of the Algae Volume II.” Cambridge University Press 1945. pp 397–398, 415, 423-424, 431, 433-435
- Garbary, David, J; Hansen, Gayle I; Scagel, Robert F. “The Marine Algae of British Columbia and Northern Washington: Division Rhodophyta (Red Algae), Class Bangiophyceae.” Dept. of Botany, University of British Columbia, Vancouver, Canada. 1980. pp 139–142 and 164-165
Further reading
[edit]- Sheath, R.G. (2003). Red Algae. In: Freshwater Algae of North America, Ecology & Classification. (Wehr, J.D. & Sheath, R.G. Eds), pp. 197–224. San Diego: Academic Press.
- Silva, P.C.; Basson, P.W.; Moe, R.L. (1996). Catalogue of the Benthic Marine Algae of the Indian Ocean. University of California Publications in Botany. 79, xiv+1259 pp.ISBN0-520-09810-2,available online athttps://books.google /books?id=vuWEemVY8WEC&pg=PA5
- Silva, P.C. & Nelson, W.A. (2008). History of the typification of conserved and rejected names, including an account of the typification ofBangiaLyngb. (Bangiaceae, Rhodophyta). Taxon 57: 1351-1354.
- Sutherland, J.E., Lindstrom, S.C., Nelson, W.A., Brodie, J., Lynch, M.D., Hwang, M.S., Choi, H.-G., Miyata, M., Kikuchi, N., Oliveira, M.C., Farr, T., Neefus, C., Mols-Mortensen, A. Milstein, D. & Müller, K.M. (2011). A new look at an ancient order: generic revision of the Bangiales (Rhodophyta). Journal of Phycology 47(5): 1131-1151.