Himantothallus

Author: abea

August undefined, 2024

Webb10 feb. 2016 · Although these two large kelp species are absent from the Antarctic, another species, Himantothallus grandifolius, is circumpolar and may play a role in … WebbSeveral studies reported that gametophytes and tetrasporophytes of Gigartinaceae produce different carrageenan types, as observed in Sarcopeltis species although they have isomorphic haploid and diploid phases. Cystocarpic and non-fertile plants of Sarcopeltis (ex Gigartina) skottsbergii produced kappa-carrageenans, while …

Category:Himantothallus grandifolius - Wikimedia Commons

WebbDesmarestia. Himantothallus. Phaeurus. Desmarestiaceae is a family of brown algae, one of two families in the order Desmarestiales. [1] The family gets its name from the genus Desmarestia, which is named after the French zoologist Anselme Gaëtan Desmarest (1784-1838). [2] There are three genera in this family. WebbThe purpose of this review is to briefly summarize the central role of iron (Fe) in terms of cellular alterations of the oxidative/protective balance with special emphasis on its possible involvement in ferroptosis-dependen... Find, read and cite all the research you need on Tech Science Press steat bonus trasporti

Fucoxanthin from the Antarctic Himantothallus grandifollius as a ...

WebbSimilar Items. Photoinhibition of photosynthesis in Antarctic lichen Usnea antarctica. I. Light intensity- and light duration-dependent changes in functioning of photosystem II by: Barták, Miloš, et al. Published: (2012) ; Photosynthetic characteristics of phytoplankton off Adelie Land, Antarctica, during the austral summer by: Toru Hirawake, et al. Published: (2000) WebbHimantothallus grandifolius (A and E Gepp) is a brown alga found in the Antarctic islands and sub-Antarctic regions; this macroalga is a member of the order Desmarestiales in the Phaeophyceae class and can reach a length of 17.5 m (Dieckmann et al., 1985; Drew and Hastings, 1992). This alga occurs in the Antarctic and sub-Antarctic regions, Webb1 aug. 1996 · Field studies carried out on the Antarctic brown macroalga Himantothallus grandifolius during two summers and an intervening winter season show that Nutrient levels are sufficiently high throughout the year to support maximal rates of macroalgal photosynthesis, but water temperature seldom reaches even 1°C, resulting in relatively … steates remmell steates and dziekan

The first comprehensive description of the biodiversity and ...

Frontiers Variations on primary metabolites of the carrageenan ...

WebbBoth the number of species and macroalgal biomass were low compared with sub-Antarctic regions. The vertical zonation found was: an ice-abraded zone characterized by Iridaea cordata, a zone 5 to 14 m depth dominated by Desmarestia anceps and Desmarestia menziesii and a zone 15 to 25 m characterized by Himantothallus grandifolius. WebbGlobal Biodiversity Information Facility. Free and Open Access to Biodiversity Data. pink foam sheetsWebbThe assemblages of marine benthic organisms and sediment characteristics were investigated in the coastal area between the Mario Zucchelli Antarctic Research Station and Adelie Cove in Terra Nova Bay (Ross Sea, Southern Ocean) during the 2015 summer season. Sediment samples were taken from 11 stations at depths between 25 and 140 … steates remmell steates

"Webb14 apr. 2010 · However, polychaete assemblages have also been found associated to holdfasts of the brown alga Himantothallus grandifolius in more exposed areas of … " - Himantothallus

Himantothallus

WebbHimantothallus grandifolius in Admiralty Bay, King George Island, Antarctic Krzysztof Pabis • Jacek Sicinski Received: 8 January 2010/Revised: 31 March 2010/Accepted: 30 April 2010/Published online: 22 May 2010 The Author(s) 2010. This article is published with open access at Springerlink.com Abstract The polychaete community associated with WebbPhyllogigas and Himantothallus Antarctic Phaeophyceae C. SKOTTSBERG and M. N E U S H U L Marine Botanical Institute, University of Gothenburg, Sweden, and Botany Department, University o£ Washington, Seattle, Wash., U.S.A. With 3 figures Received: April, i, 1960 In April, 1905, Anthony and Ethel S. Gepp (i) published a list o£ Antarctic …

Did you know?

WebbImpacts of gastropods on epiphytic microalgae on the brown macroalga Himantothallus grandifolius CHARLES D. AMSLER 1, MARGARET O. AMSLER1, MICHELLE D. CURTIS1, JAMES B. McCLINTOCK1 and BILL J. BAKER2 1Department of Biology, University of Alabama at Birmingham, 1300 University Blvd., Birmingham, AL 35233 … Webb15 mars 2024 · One of the three most important macroalgae in terms of overstory cover, Himantothallus grandifolius, forms huge blades that can carpet the benthos. Field …

WebbThe discovery of embryonic stages of the common large Antarctic brown seaweed Himantothallus has led to the conclusion that this plant, hitherto assigned equivocally to the Laminariales (kelps), is a member of the Desmarestiales. Moreover, field study of a large sample of Himantothallus and two other enigmatic brown algae, Phyllogigas and … WebbThe aim of this study was to investigate the anticancer and antioxidant activities as well as the safety of the brown algaeDictyota dichotomaof the Western seacoast of Yemen. Cytotoxicity of methanol extract ofD. dichotomaand several of its

WebbThere are few data reported on radionuclide contamination in Antarctica. The aim of this paper is to report 137Cs, 90Sr and 238,239+240Pu and 40K activity concentrations measured in biological samples collected from King George Island (Southern Shetlands, Antarctica), mostly during 2001–2002. The samples included: bones, eggshells and … WebbHimantothallus grandifolius extract obtained in this study present a novel and complex chemical characteriza- tion and important cytotoxic effect against tumor cell lines. To date this is the first report that investigates a crude extract obtained from brown algae showing an important biological activity.

Webb1 aug. 2015 · Near Anvers Island, four species of large brown algae (Desmarestia antarctica, D. menziesii, D. anceps, and Himantothallus grandifolius) can constitute up to 75% of the overall percent cover and biomass (Amsler et al., 1995). Another species, Ascoseira mirabilis, has also been known to occur in great abundance on the Peninsula …

WebbThe brown macroalgae Himantothallus grandifolius (A & E Gepp) Zinova is an eukaryotic organism typically found in marine environment with geographical distribution in the Antarctic islands and subantarctic regions, being the prevalent species in regions such as the Potter Cove [12]. A recent study found the percentage distri- pink foam pump bottleWebb9 apr. 2024 · When these particles reach the seabed, they cover benthic organisms such as this macroalga (Himantothallus grandifolius), photographed in Mackellar Inlet (62°S, Antarctic Peninsula) ... pink foam snow sledWebbHimantothallus grandifolius, forms huge blades that can carpet the benthos. Field observations suggest that gastropods may be higher in relative abundance in proportion … ste athena