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Comprehensive Description

provided by EOL authors

Padina gymnospora is characterised by the thick thallus (up to 8 cell layers), the distribution of sporangia primarily on the superior surface of the thallus and the evanescent indusium.Specimens are collected in shallow pools in the sublittoral fringe (De Clerck et al 2002).

Thalli, attached by a small stupose rhizoidal base, are to 6.5 cm high, flabellate and composed of several lobes with inrolled margins. The superior surface (the side toward which the margin is inrolled) is slightly to moderately calcified. Thalli are olive-brown in colour. In transverse section the thallus is composed of 4-6 layers of cells in the mid-regions and up to 8-9 layers near the base. Hair rows are present on both sides of the thallus, but more conspicuous on the inferior side of the thallus. Tetrasporangia are arranged in concentric lines, above each hair row, mainly (but not exclusively) developed on the superior surface. An evanescent indusium is present but is usually only clearly visible in very young sori. Tetrasporangia are ovoid, up to 100 μm long and 70 μm wide. Gametophytes were not observed (De Clerck et al 2002).

De Clerck, O., H.R. Engledow, J.J. Bolton, J.J. Anderson and E. Coppejans 2002 Twenty marine benthic algae new to South Africa, with emphasis on the flora of Kwazulu-Natal. Botanica Marina 45:413-431.

Taken from Guiry, M.D. and G.M. Guiry 2009

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Guiry, M.D. and G.M. Guiry 2009 AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. http://www.algaebase.org; searched on 14 April 2009. Retrieved for EOL October 27 2014 from http://www.sealifebase.ca/summary/Padina-gymnospora.html
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Dana Campbell (danac)
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Size

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Max length : 6.5 cm TL male/unsexed (Guiry and Guiry 2009)

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Guiry and Guiry 2009
bibliographic citation
Guiry, M.D. and G.M. Guiry 2009 AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. http://www.algaebase.org; searched on 14 April 2009. Retrieved for EOL October 27 2014 from http://www.sealifebase.ca/summary/Padina-gymnospora.html
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Dana Campbell (danac)
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Habitat

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Benthic; brackish; depth range 0 - 14 m (Bernecker, 2009).Tropical.

Bernecker, A. 2009 Marine benthic algae. p. 109-118 In Wehrtmann, I.S. and Cortés, J. 2009. Marine biodiversity of Costa Rica, Central America. Springer 538pp.

From SeaLifeBase (Palomares and Pauly 2014)

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Berecker 2009
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Palomares, M.L.D. and D. Pauly. Editors. 2014. SeaLifeBase. World Wide Web electronic publication. www.sealifebase.org, version (08/2014). Retrieved October 27 2014 from http://www.sealifebase.ca/summary/Padina-gymnospora.html
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Dana Campbell (danac)
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Distribution

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Atlantic Ocean: from North Carolina, USA south to Brazil including the Gulf of Mexico, Caribbean and Bermuda, east to Salvage (Selvagens) Islands and south to Angola, including the Mediterranean (Israel), Canary, Cape Verde and Ascension Island; Indian Ocean: In the Arabian Sea south to South Africa, including the Persian Gulf, Seychelles, Madagascar and Réunion, east to India and south to Western Australia including Bay of Bengal and Andaman Sea; Pacific Ocean: from Korea to the South China Sea south to Queensland, Australia, east to Hawaiian Islands including Federated States of Micronesia, Fiji and Samoan Archipelago.

From Palomares and Pauly 2014.

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Palomares and Pauly 2014
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Palomares, M.L.D. and D. Pauly. Editors. 2014. SeaLifeBase. World Wide Web electronic publication. www.sealifebase.org, version (08/2014). Retrieved October 27 2014 from http://www.sealifebase.ca/summary/Padina-gymnospora.html
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Dana Campbell (danac)
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Benefits

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Studies of sulfated polysaccarides extracted from the brown algae Padina gymnospora (Dictyotales) indicate that these chemicals have anti-inflammatory properties in mice.Chemical characterization and analysis to examine the effect of these fulcans upon leukocyte migration to an inflammation site, effect of these fulcans upon cytotoxicity and nitric oxide (NO) produced indicate that these fulcans also show no cytotoxic action.Marquez et al. 2012 suggest that fulcan extracts from P. gymnospora have potential pharmaceutical use (Marquez et al. 2012; Silva et al. 2005 ).

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Comprehensive Description

provided by Smithsonian Contributions to Botany
Padina gymnospora (Kützing) Sonder

Zonaria gymnospora Kützing, 1859:29, pl. 71: fig. 2 [see Allender and Kraft, 1983:86, fig. 7E (holotype picture)].

Padina gymnospora (Kützing) Sonder, 1871:47; Allender and Kraft, 1983:89; Mendoza-González and Mateo-Cid, 1986:421; Mateo-Cid et al., 1993:50; González-González, 1993:443; León-Tejera and González-González, 1993:498; León-Tejera et al., 1993:200; Servière-Zaragoza et al., 1993:482; González-González et al., 1996:297, 340: fig. 19, 378; L. Aguilar-Rosas et al., 2000:132; Mateo-Cid et al., 2000a:68; Mateo-Cid et al., 2000b:210, figs. 51–53, 82, 107; Abbott and Huisman, 2004:215, fig. 82A–D; Hernández-Herrera et al., 2005:146 [non Padina gymnospora sensu Vickers, 1905:58; Børgesen, 1914:46, fig. 155; Taylor, 1960:237; Earle, 1969:165; which is Padina boergesenii Allender et Kraft, 1983:87].

Padina vickersiae Hoyt in Howe, 1920:595; Taylor, 1960:236, pl. 34: fig. 1 [see Allender and Kraft, 1983:89].

Algae fanlike blades, up to 15 cm tall and 5–15 cm wide, usually as wide as or wider than long, yellowish-brown, simple with entire margins, ruffled; sometimes divided or torn into several lobes; calcified on both surfaces; above a short, stupose holdfast. Blades near inrolled margins of 2 cell layers, 30–50 µm thick; midportion of 4–6 cell layers, 75–80 µm thick; lower portion of 6–8 cell layers, 180–200 µm thick. Cortical cells 18–30 µm tall by 18–30 µm wide. Medullary cells 21–39 µm tall by (75–)100–180 µm wide. Hairs in concentric lines on both sides of blades.

Sporangia in sori with an indusium; sporangium up to 90 µm in diameter; solitary or grouped in noncontinuous bands between hair lines on both blade surfaces. Oogonia in sori; oogonium 80–100 µm tall by 65–90 µm in diameter. Antheridia in sori up 240 µm wide.

HABITAT. Mid intertidal to shallow subtidal.

DISTRIBUTION. Gulf of California: Playa El Coloradito to Estero Tastiota; Bahía Concepción to Cabo Pulmo. Pacific coast: Nayarit to Jalisco; Oaxaca; Hawaiian Islands; China; Japan.

TYPE LOCALITY. St. Thomas, West Indies (U.S. Virgin Islands).
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Norris, James N. 2010. "Marine algae of the northern Gulf of California : Chlorophyta and Phaeophyceae." Smithsonian Contributions to Botany. 276-276. https://doi.org/10.5479/si.0081024X.94.276

Comprehensive Description

provided by Smithsonian Contributions to Botany
Padina gymnospora (Kützing) Vickers

St. Joseph: 2, 67–340, common on large rocks scattered over the sand. St. Andrew: 11, 67–555, common as attached plants on the inshore reef. St. Mark: 6, R–269, frequent at depths of 6–12 dm.

Padinas were not uncommon about the island, but often only 1–2 cm tall and sterile, so that identification was seldom practicable.
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bibliographic citation
Taylor, William Randolph and Rhyne, Charles F. 1970. "Marine Algae of Dominica." Smithsonian Contributions to Botany. 1-16. https://doi.org/10.5479/si.0081024X.3