DOCSLIB.ORG

Asexual Life History by Biflagellate Zoids In

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
Asexual Life History by Biflagellate Zoids In Aquatic Botany 91 (2009) 213–218 Contents lists available at ScienceDirect Aquatic Botany journal homepage: www.elsevier.com/locate/aquabot Asexual life history by biflagellate zoids in Monostroma latissimum (Ulotrichales) Felix Bast a,*, Satoshi Shimada b, Masanori Hiraoka a, Kazuo Okuda a a Graduate School of Kuroshio Science, Kochi University, 2-5-1 Akebono, Kochi 780-8520, Japan b Graduate School of Humanities and Sciences, Ochanomizu University, Tokyo 112-8610, Japan ARTICLE INFO ABSTRACT Article history: Monostroma latissimum (Kuetzing) Wittrock is a monostromatic green alga of commercial importance in Received 16 December 2008 Japan. Here we report the serendipitous discovery of asexually reproducing specimens collected from Received in revised form 26 May 2009 Usa, on the Pacific coast of Kochi Prefecture, south-western Japan. Zoids were found to be biflagellate and Accepted 24 June 2009 negatively phototactic. Germination of settled zoids was observed to follow erect-filamentous ontogeny Available online 1 July 2009 similar to that of the previously reported sexual strain. Moreover, the newly discovered asexual strain had identical sequences of nuclear encoded ITS (Internal Transcribed Spacer) region to that of the sexual Keywords: strain. On the basis of this finding, we postulate that the ITS sequences may have been maintained in Internal Transcribed Spacer these conspecific strains despite the evolution in sexuality. Relationships were investigated among M. Life history Phylogeny latissimum and other monostromatic taxa within the class Ulvophyceae using ITS sequences in order to Seaweed understand relative phylogenetic position of this species. Taxonomy ß 2009 Elsevier B.V. All rights reserved. Thallus ontogeny 1. Introduction In this report, we present results of our life history and molecular studies to aid in understanding the identity of the marginal Monostroma (Chlorophyta, Ulvophyceae), a multicellular thal- populations of monostromatic green algae naturally occurring in loid green algal genus, consists predominantly of sexually a low saline habitat near Uranouchi Inlet, Tosa Bay, Kochi, Japan. reproducing dioecious species. The name ‘Monostroma’ is derived Monostroma latissimum (Kutzing) Wittrock (Wittrock, 1866), an from the Greek root: mono (single) and the Latin root: stroma intertidal seaweed, grows luxuriantly in this inlet from autumn (layered), reflecting its thallus architecture consisting of single through spring (Bast et al., 2009a). The life cycle of this species is layer of cells (Bold and Wynne, 1985). This genus was originally diplo-haplontic, with macroscopic gametophytic and microscopic characterized by Thuret (1854) as thalli forming leafy monostro- sporophytic generations (Kunieda, 1934; Tatewaki, 1969; Hua et al., matic blades 2–30 cm (or more) in length. Many taxa were 2004; Bast et al., 2009a). Secondary sex ratio in this species is subsequently added into this genus, all based upon Thuret’s reported to be 1:1 throughout the period of occurrence (Bast et al., original characteristic; i.e., fronds solely made-up of horizontally 2009b). As this species has previously been known to reproduce only arranged single layer of cells. A plethora of taxonomic revisions on sexually, we did not expect to find an asexual reproduction at our this genus – beyond the scope of the present report – resulted in study site. We also have sequenced nuclear encoded rDNA Internal the construction of many new genera to accommodate all of the Transcribed Spacer (ITS1) sequences from the new strain of monostromatic green algae. Recently, Hayden and Waaland (2002) Monostroma and previously identified sexually reproducing M. suggested that the single cell-layered thallus morphology appears latissimum to characterize sequence divergence between the two to have a polyphyletic derivation, as hinted by the completely strains. This molecular marker was chosen because ITS sequences different ontogenies of species with similar thallus morphology. are available for a large group of marine green algae and has a high Summary of the key taxonomic characters used to diagnose seven degree of variance even between very closely related algal taxa putative monostromatic genera: Monostroma, Protomonostroma, (Woolcott and King, 1998). Morphological and developmental Gayralia, Ulvaria, Kornmannia, Ulvopsis and Capsosiphon based on characteristics, combined with partial ITS sequences, had been life history, thallus ontogeny and other characteristics hitherto found to be useful in resolving species-level identity within the class known are listed in Table 1. Ulvophyceae (Hiraoka et al., 2003). 2. Materials and methods * Corresponding author. Tel.: +81 90 2899 5075; fax: +81 888448314. Thalli of monostromatic green algae were collected from an E-mail address: [email protected] (F. Bast). intertidal zone at a fresh water stream, near its confluence to the 0304-3770/$ – see front matter ß 2009 Elsevier B.V. All rights reserved. doi:10.1016/j.aquabot.2009.06.006 214 F. Bast et al. / Aquatic Botany 91 (2009) 213–218 Table 1 Summary of taxonomic characters used to diagnose genera: Monostroma, Ulvopsis, Gayralia, Protomonostroma, Kornmannia, Ulvaria and Capsosiphon. Genus Life history Thallus ontogeny Zoid release Zoid ultrastructure Monostroma Heteromorphic alternation of leafy gametophytes Filament-blade/ Without pores Biflagellate gametes, quadriflagellate and cyst-like sporophytes filament-sac-blade zoospores. Eye-spot present Gayralia Non-alternation of generations (monomorphic asexual) Filament-sac-blade Without pores Biflagellate zoids. Eye-spot present Protomonostroma Heteromorphic alternation of generations (asexual). Filament-blade Without pores Quadriflagellate zoids. Eye-spot absent One generation is leafy and other is unicellular cyst Ulvopsis Heteromorphic alternation of leafy gametophytes and Disc-sac-blade Through pores Biflagellate gametes and asexual zoids, cyst-like sporophytes. Rarely non-alternating quadriflagellate zoospores. Eye-spot present (monomorphic) asexual Kornmannia Heteromorphic alternation of microscopic disc-like Disc-sac-blade Through pores Biflagellate gametes and quadriflagellate gametophytes and leafy sporophytes. Non-alternating zoospores. Quadriflagellate asexual zoids. (monomorphic) asexual also present Eye-spot absent Ulvaria Isomorphic alternation of generations Filament-sac-blade Through pores Biflagellate gametes and quadriflagellate zoospores. Eye-spot present Capsosiphon Heteromorphic alternation of tubular gametophytes and Filament-tube Through pores Biflagellate gametes and quadriflagellate cyst-like sporophytes; Rarely isomorphic alternation of zoospores. Asexual reproduction by generations and non-alternating (monomorphic) asexual quadriflagellate zoids or aplanospores. Eye-spot present in gametes Based on Gayral (1964); Bliding (1968) and Tatewaki (1969). N.A. stands for information not available. inlet (Uranouchi Inlet) in Usa, Kochi Prefecture, Japan (33.43N (293 bp for both strains) were performed as in Shimada et al. 133.44E), on April 2007. Salinity levels at the sampling site (2003). All phylogenetic analyses were conducted in Geneious were observed to be fluctuating substantially with a yearly average computer software, version 4.6 (available at www.geneious.com). of about 17 psu, while that at the inlet (10 m downstream) Sequences were aligned first using the built-in Geneious Aligner of was about 28 psu (Bast et al., 2009a). After washing in tap water, the same software, then edited by eye. ITS1 sequences of 10 related thalli were placed individually in BD-Falcon 12-well cell culture taxa were obtained from Genbank and included in the alignments. plates (BD Biosciences, Bedford, MA) with 2–3 mL modified Alignments are available from first author upon request and from enriched seawater (West and McBride, 1999) and cultured at Treebase (http://www.treebase.org/treebase). Phylogenetic ana- 15 8C under cool white fluorescent light with an irradiance of lysis using maximum likelihood (ML) algorithm was conducted 70 mmol photons mÀ2 sÀ1 and 12:12 h LD (light:dark) photoperiod using PhyML plug-in version 2.4.5 (Guindon and Gascuel, 2003) to induce maturity. Previously identified male and female inside Geneious, with starting tree generated by BioNJ. Substitu- gametophytes of the sexual strain of M. latissimum (Kuetzing) tion bias was modeled by the general time-reversible model (Yang, Wittrock collected from the inlet on March 2007 were also grown 1994a) with invariable sites (Hasegawa et al., 1985) and rate in the similar culture conditions. heterogeneity was modeled using the gamma distribution method Every 4 d the medium was changed in the culture plates. After (Yang, 1994b) with four discrete rate categories and a single shape two weeks, culture dishes were placed at 25 8C to facilitate the zoid parameter (alpha). Heuristic searches were performed with tree release. The size and number of flagella of zoids released from bisection-reconnection, MULTREES and steepest descent options in mature thalli were observed under a microscope (ECLIPSE E200, effect. A total of 1000 bootstrap replicates were performed under Nikon, Tokyo, Japan) and photographs were taken using a digital ML criterion to estimate branch support (Felsenstein, 1985). camera (COOLPIX4500, Nikon, Tokyo, Japan). Zoids/gametes were Bayesian posterior probabilities to indicate statistical support for collected using their phototactic response in autoclaved sea-water interior branches were calculated using MrBayes plug-in version 3 (Kawai et al.,
Load more

Recommended publications
  • Marine Macroalgal Biodiversity of Northern Madagascar: Morpho‑Genetic Systematics and Implications of Anthropic Impacts for Conservation
    Biodiversity and Conservation https://doi.org/10.1007/s10531-021-02156-0 ORIGINAL PAPER Marine macroalgal biodiversity of northern Madagascar: morpho‑genetic systematics and implications of anthropic impacts for conservation Christophe Vieira1,2 · Antoine De Ramon N’Yeurt3 · Faravavy A. Rasoamanendrika4 · Sofe D’Hondt2 · Lan‑Anh Thi Tran2,5 · Didier Van den Spiegel6 · Hiroshi Kawai1 · Olivier De Clerck2 Received: 24 September 2020 / Revised: 29 January 2021 / Accepted: 9 March 2021 © The Author(s), under exclusive licence to Springer Nature B.V. 2021 Abstract A foristic survey of the marine algal biodiversity of Antsiranana Bay, northern Madagas- car, was conducted during November 2018. This represents the frst inventory encompass- ing the three major macroalgal classes (Phaeophyceae, Florideophyceae and Ulvophyceae) for the little-known Malagasy marine fora. Combining morphological and DNA-based approaches, we report from our collection a total of 110 species from northern Madagas- car, including 30 species of Phaeophyceae, 50 Florideophyceae and 30 Ulvophyceae. Bar- coding of the chloroplast-encoded rbcL gene was used for the three algal classes, in addi- tion to tufA for the Ulvophyceae. This study signifcantly increases our knowledge of the Malagasy marine biodiversity while augmenting the rbcL and tufA algal reference libraries for DNA barcoding. These eforts resulted in a total of 72 new species records for Mada- gascar. Combining our own data with the literature, we also provide an updated catalogue of 442 taxa of marine benthic
    [Show full text]
  • Uncovering Unique Green Algae and Cyanobacteria Isolated from Biocrusts in Highly Saline Potash Tailing Pile Habitats, Using an Integrative Approach
    microorganisms Article Uncovering Unique Green Algae and Cyanobacteria Isolated from Biocrusts in Highly Saline Potash Tailing Pile Habitats, Using an Integrative Approach Veronika Sommer 1,2, Tatiana Mikhailyuk 3, Karin Glaser 1 and Ulf Karsten 1,* 1 Institute for Biological Sciences, Applied Ecology and Phycology, University of Rostock, 18059 Rostock, Germany; [email protected] (V.S.); [email protected] (K.G.) 2 upi UmweltProjekt Ingenieursgesellschaft mbH, 39576 Stendal, Germany 3 National Academy of Sciences of Ukraine, M.G. Kholodny Institute of Botany, 01601 Kyiv, Ukraine; [email protected] * Correspondence: [email protected] Received: 4 September 2020; Accepted: 22 October 2020; Published: 27 October 2020 Abstract: Potash tailing piles caused by fertilizer production shape their surroundings because of the associated salt impact. A previous study in these environments addressed the functional community “biocrust” comprising various micro- and macro-organisms inhabiting the soil surface. In that previous study, biocrust microalgae and cyanobacteria were isolated and morphologically identified amongst an ecological discussion. However, morphological species identification maybe is difficult because of phenotypic plasticity, which might lead to misidentifications. The present study revisited the earlier species list using an integrative approach, including molecular methods. Seventy-six strains were sequenced using the markers small subunit (SSU) rRNA gene and internal transcribed spacer (ITS). Phylogenetic analyses confirmed some morphologically identified species. However, several other strains could only be identified at the genus level. This indicates a high proportion of possibly unknown taxa, underlined by the low congruence of the previous morphological identifications to our results. In general, the integrative approach resulted in more precise species identifications and should be considered as an extension of the previous morphological species list.
    [Show full text]
  • 2004 University of Connecticut Storrs, CT
    Welcome Note and Information from the Co-Conveners We hope you will enjoy the NEAS 2004 meeting at the scenic Avery Point Campus of the University of Connecticut in Groton, CT. The last time that we assembled at The University of Connecticut was during the formative years of NEAS (12th Northeast Algal Symposium in 1973). Both NEAS and The University have come along way. These meetings will offer oral and poster presentations by students and faculty on a wide variety of phycological topics, as well as student poster and paper awards. We extend a warm welcome to all of our student members. The Executive Committee of NEAS has extended dormitory lodging at Project Oceanology gratis to all student members of the Society. We believe this shows NEAS members’ pride in and our commitment to our student members. This year we will be honoring Professor Arthur C. Mathieson as the Honorary Chair of the 43rd Northeast Algal Symposium. Art arrived with his wife, Myla, at the University of New Hampshire in 1965 from California. Art is a Professor of Botany and a Faculty in Residence at the Jackson Estuarine Laboratory of the University of New Hampshire. He received his Bachelor of Science and Master’s Degrees at the University of California, Los Angeles. In 1965 he received his doctoral degree from the University of British Columbia, Vancouver, Canada. Over a 43-year career Art has supervised many undergraduate and graduate students studying the ecology, systematics and mariculture of benthic marine algae. He has been an aquanaut-scientist for the Tektite II and also for the FLARE submersible programs.
    [Show full text]
  • The Cytology of Zoosporogenesis in the Filamentous Green Algal Genus Klebsormidium Author(S): J
    The Cytology of Zoosporogenesis in the Filamentous Green Algal Genus Klebsormidium Author(s): J. R. Cain, K. R. Mattox and K. D. Stewart Source: Transactions of the American Microscopical Society, Vol. 92, No. 3 (Jul., 1973), pp. 398-404 Published by: Wiley on behalf of American Microscopical Society Stable URL: https://www.jstor.org/stable/3225243 Accessed: 13-02-2019 17:57 UTC REFERENCES Linked references are available on JSTOR for this article: https://www.jstor.org/stable/3225243?seq=1&cid=pdf-reference#references_tab_contents You may need to log in to JSTOR to access the linked references. JSTOR is a not-for-profit service that helps scholars, researchers, and students discover, use, and build upon a wide range of content in a trusted digital archive. We use information technology and tools to increase productivity and facilitate new forms of scholarship. For more information about JSTOR, please contact [email protected]. Your use of the JSTOR archive indicates your acceptance of the Terms & Conditions of Use, available at https://about.jstor.org/terms American Microscopical Society, Wiley are collaborating with JSTOR to digitize, preserve and extend access to Transactions of the American Microscopical Society This content downloaded from 132.248.28.28 on Wed, 13 Feb 2019 17:57:04 UTC All use subject to https://about.jstor.org/terms 398 TRANS. AMER. MICROS. SOC., VOL. 92, NO. 3, JULY 1973 U. S. GEOL. SURVEYSURVEY BULL.BULL. NO.NO. 1248,1248, WASHINGTON,WASHINGTON, D.D. C.C. WAKIL, S. J.,J., MCLAIN,MCLAIN, L.L. W.,W., JR.JR. && WARSHAW,WARSHAW, J.J.
    [Show full text]
  • Ariile Protejate – Zone De Conservare Durabilă a Patrimoniului Natural
    Ariile protejate – zone de conservare durabilă a patrimoniului natural Viorel ROŞCA Importanţa ariilor protejate Ariile protejate sunt vitale pentru conservarea valorilor globale şi regionale ale biodiversităţii, asigurându-se şi generaţiilor viitoare dreptul de a se bucura de binefacerile naturii, iar respectul faţă de legităţile acesteia constituie de fapt respectul pentru noi înşine. Protejarea acestor „perle” ale patrimoniului natural constituie astăzi un deziderat de prim rang al întregii omeniri, în condiţiile în care nevoile de spaţiu din ce în ce mai mari pentru cerinţele socio-economice au ca impact diminuarea diversităţii biologice în sistemele naturale şi seminaturale şi, implicit, perturbarea mecanismelor de reglaj ale sistemului climatic planetar. Forul mondial – Uniunea Internaţională de Conservarea Naturii (I.U.C.N.) – a stabilit un sistem pentru definirea şi clasificarea ariilor protejate, categoriile de management ale acestora, bine reprezentate şi în România, fiind următoarele: Ia – Rezervaţie naturală strictă (rezervaţie ştiinţifică); Ib – Arie naturală sălbatică; II – Parcuri naţionale; III – Monumente ale naturii; IV – Arie de gestionare a habitatelor / speciilor (rezervaţie naturală); V – Peisaj terestru protejat (parcuri naturale); VI - Arie protejată cu resurse gestionate. Prin constituirea ariilor protejate se asigură conservarea zonelor cu elemente naturale deosebite, nealterate de componente antropice, în care să se desfăşoare în principal activităţi de evaluare şi monitorizare a capitalului natural, de educaţie ecologică şi de ecoturism. Sunt interzise activităţile susceptibile să genereze impact negativ asupra acestor zone, în special asupra componentelor naturale care au constituit baza fundamentării ştiinţifice la înfiinţarea acestor arii. Ariile protejate, prin valoarea lor naturală, ştiinţifică, educaţională şi gradul redus al intervenţiei umane pe teritoriul lor, sunt cele mai bune exemple şi modele de ecosisteme naturale şi seminaturale.
    [Show full text]
  • The Potential of Seaweeds As a Source of Functional Ingredients of Prebiotic and Antioxidant Value
    antioxidants Review The Potential of Seaweeds as a Source of Functional Ingredients of Prebiotic and Antioxidant Value Andrea Gomez-Zavaglia 1 , Miguel A. Prieto Lage 2 , Cecilia Jimenez-Lopez 2 , Juan C. Mejuto 3 and Jesus Simal-Gandara 2,* 1 Center for Research and Development in Food Cryotechnology (CIDCA), CCT-CONICET La Plata, Calle 47 y 116, La Plata, Buenos Aires 1900, Argentina 2 Nutrition and Bromatology Group, Department of Analytical and Food Chemistry, Faculty of Science, University of Vigo – Ourense Campus, E32004 Ourense, Spain 3 Department of Physical Chemistry, Faculty of Science, University of Vigo – Ourense Campus, E32004 Ourense, Spain * Correspondence: [email protected] Received: 30 June 2019; Accepted: 8 September 2019; Published: 17 September 2019 Abstract: Two thirds of the world is covered by oceans, whose upper layer is inhabited by algae. This means that there is a large extension to obtain these photoautotrophic organisms. Algae have undergone a boom in recent years, with consequent discoveries and advances in this field. Algae are not only of high ecological value but also of great economic importance. Possible applications of algae are very diverse and include anti-biofilm activity, production of biofuels, bioremediation, as fertilizer, as fish feed, as food or food ingredients, in pharmacology (since they show antioxidant or contraceptive activities), in cosmeceutical formulation, and in such other applications as filters or for obtaining minerals. In this context, algae as food can be of help to maintain or even improve human health, and there is a growing interest in new products called functional foods, which can promote such a healthy state.
    [Show full text]
  • Seaweeds of California Green Algae
    PDF version Remove references Seaweeds of California (draft: Sun Nov 24 15:32:39 2019) This page provides current names for California seaweed species, including those whose names have changed since the publication of Marine Algae of California (Abbott & Hollenberg 1976). Both former names (1976) and current names are provided. This list is organized by group (green, brown, red algae); within each group are genera and species in alphabetical order. California seaweeds discovered or described since 1976 are indicated by an asterisk. This is a draft of an on-going project. If you have questions or comments, please contact Kathy Ann Miller, University Herbarium, University of California at Berkeley. [email protected] Green Algae Blidingia minima (Nägeli ex Kützing) Kylin Blidingia minima var. vexata (Setchell & N.L. Gardner) J.N. Norris Former name: Blidingia minima var. subsalsa (Kjellman) R.F. Scagel Current name: Blidingia subsalsa (Kjellman) R.F. Scagel et al. Kornmann, P. & Sahling, P.H. 1978. Die Blidingia-Arten von Helgoland (Ulvales, Chlorophyta). Helgoländer Wissenschaftliche Meeresuntersuchungen 31: 391-413. Scagel, R.F., Gabrielson, P.W., Garbary, D.J., Golden, L., Hawkes, M.W., Lindstrom, S.C., Oliveira, J.C. & Widdowson, T.B. 1989. A synopsis of the benthic marine algae of British Columbia, southeast Alaska, Washington and Oregon. Phycological Contributions, University of British Columbia 3: vi + 532. Bolbocoleon piliferum Pringsheim Bryopsis corticulans Setchell Bryopsis hypnoides Lamouroux Former name: Bryopsis pennatula J. Agardh Current name: Bryopsis pennata var. minor J. Agardh Silva, P.C., Basson, P.W. & Moe, R.L. 1996. Catalogue of the benthic marine algae of the Indian Ocean.
    [Show full text]
  • The Marine Vegetation of the Kerguelen Islands: History of Scientific Campaigns, Inventory of the Flora and First Analysis of Its Biogeographical Affinities
    cryptogamie Algologie 2021 ● 42 ● 12 DIRECTEUR DE LA PUBLICATION / PUBLICATION DIRECTOR : Bruno DAVID Président du Muséum national d’Histoire naturelle RÉDACTRICE EN CHEF / EDITOR-IN-CHIEF : Line LE GALL Muséum national d’Histoire naturelle ASSISTANTE DE RÉDACTION / ASSISTANT EDITOR : Marianne SALAÜN ([email protected]) MISE EN PAGE / PAGE LAYOUT : Marianne SALAÜN RÉDACTEURS ASSOCIÉS / ASSOCIATE EDITORS Ecoevolutionary dynamics of algae in a changing world Stacy KRUEGER-HADFIELD Department of Biology, University of Alabama, 1300 University Blvd, Birmingham, AL 35294 (United States) Jana KULICHOVA Department of Botany, Charles University, Prague (Czech Republic) Cecilia TOTTI Dipartimento di Scienze della Vita e dell’Ambiente, Università Politecnica delle Marche, Via Brecce Bianche, 60131 Ancona (Italy) Phylogenetic systematics, species delimitation & genetics of speciation Sylvain FAUGERON UMI3614 Evolutionary Biology and Ecology of Algae, Departamento de Ecología, Facultad de Ciencias Biologicas, Pontificia Universidad Catolica de Chile, Av. Bernardo O’Higgins 340, Santiago (Chile) Marie-Laure GUILLEMIN Instituto de Ciencias Ambientales y Evolutivas, Universidad Austral de Chile, Valdivia (Chile) Diana SARNO Department of Integrative Marine Ecology, Stazione Zoologica Anton Dohrn, Villa Comunale, 80121 Napoli (Italy) Comparative evolutionary genomics of algae Nicolas BLOUIN Department of Molecular Biology, University of Wyoming, Dept. 3944, 1000 E University Ave, Laramie, WY 82071 (United States) Heroen VERBRUGGEN School of BioSciences,
    [Show full text]
  • Freshwater Algae in Britain and Ireland - Bibliography
    Freshwater algae in Britain and Ireland - Bibliography Floras, monographs, articles with records and environmental information, together with papers dealing with taxonomic/nomenclatural changes since 2003 (previous update of ‘Coded List’) as well as those helpful for identification purposes. Theses are listed only where available online and include unpublished information. Useful websites are listed at the end of the bibliography. Further links to relevant information (catalogues, websites, photocatalogues) can be found on the site managed by the British Phycological Society (http://www.brphycsoc.org/links.lasso). Abbas A, Godward MBE (1964) Cytology in relation to taxonomy in Chaetophorales. Journal of the Linnean Society, Botany 58: 499–597. Abbott J, Emsley F, Hick T, Stubbins J, Turner WB, West W (1886) Contributions to a fauna and flora of West Yorkshire: algae (exclusive of Diatomaceae). Transactions of the Leeds Naturalists' Club and Scientific Association 1: 69–78, pl.1. Acton E (1909) Coccomyxa subellipsoidea, a new member of the Palmellaceae. Annals of Botany 23: 537–573. Acton E (1916a) On the structure and origin of Cladophora-balls. New Phytologist 15: 1–10. Acton E (1916b) On a new penetrating alga. New Phytologist 15: 97–102. Acton E (1916c) Studies on the nuclear division in desmids. 1. Hyalotheca dissiliens (Smith) Bréb. Annals of Botany 30: 379–382. Adams J (1908) A synopsis of Irish algae, freshwater and marine. Proceedings of the Royal Irish Academy 27B: 11–60. Ahmadjian V (1967) A guide to the algae occurring as lichen symbionts: isolation, culture, cultural physiology and identification. Phycologia 6: 127–166 Allanson BR (1973) The fine structure of the periphyton of Chara sp.
    [Show full text]
  • Molecular Diversity of Ulva Sensu Lato Along the German Coasts of the North and Baltic Seas
    European Journal of Phycology ISSN: 0967-0262 (Print) 1469-4433 (Online) Journal homepage: https://www.tandfonline.com/loi/tejp20 Cryptic, alien and lost species: molecular diversity of Ulva sensu lato along the German coasts of the North and Baltic Seas S. Steinhagen, R. Karez & F. Weinberger To cite this article: S. Steinhagen, R. Karez & F. Weinberger (2019): Cryptic, alien and lost species: molecular diversity of Ulvasensulato along the German coasts of the North and Baltic Seas, European Journal of Phycology, DOI: 10.1080/09670262.2019.1597925 To link to this article: https://doi.org/10.1080/09670262.2019.1597925 © 2019 The Author(s). Published by Informa UK Limited, trading as Taylor & Francis Group. View supplementary material Published online: 14 Jun 2019. Submit your article to this journal View Crossmark data Full Terms & Conditions of access and use can be found at https://www.tandfonline.com/action/journalInformation?journalCode=tejp20 EUROPEAN JOURNAL OF PHYCOLOGY https://doi.org/10.1080/09670262.2019.1597925 Cryptic, alien and lost species: molecular diversity of Ulva sensu lato along the German coasts of the North and Baltic Seas S. Steinhagena, R. Karezb and F. Weinbergera aGEOMAR Helmholtz Centre for Ocean Research Kiel, Marine Ecology Department, Düsternbrooker Weg 20, 24105 Kiel, Germany; bState Agency for Agriculture, Environment and Rural Areas, Schleswig-Holstein, Hamburger Chaussee 25, 24220 Flintbek, Germany ABSTRACT DNA barcoding analysis, using tufA, revealed considerable differences between the expected and observed species inventory of Ulva sensu lato in the Baltic and North Sea areas of the German state of Schleswig-Holstein. Of 20 observed genetic entities, at least four (U.
    [Show full text]
  • Redalyc.Check-List of the Basque Coast Benthic Algae (North of Spain)
    Anales del Jardín Botánico de Madrid ISSN: 0211-1322 [email protected] Consejo Superior de Investigaciones Científicas España Gorostiaga, José M.; Santolaria, Alberto; Secilla, Antonio; Casares, Coro; Díez, Isabel Check-list of the Basque coast benthic algae (North of Spain) Anales del Jardín Botánico de Madrid, vol. 61, núm. 2, 2004, pp. 155-180 Consejo Superior de Investigaciones Científicas Madrid, España Available in: http://www.redalyc.org/articulo.oa?id=55661205 How to cite Complete issue Scientific Information System More information about this article Network of Scientific Journals from Latin America, the Caribbean, Spain and Portugal Journal's homepage in redalyc.org Non-profit academic project, developed under the open access initiative Anales del Jardín Botánico de Madrid 61(2): 155-180 www.rjb.csic.es Check-list of the Basque coast benthic algae (North of Spain) por José M. Gorostiaga1, Alberto Santolaria1, Antonio Secilla1, Coro Casares2 & Isabel Díez1 1 Departamento de Biología Vegetal y Ecología, Facultad de Ciencias, Universidad del País Vasco, Apdo. 644, E-48080 Bilbao, Spain [email protected] (corresponding author) [email protected] [email protected] [email protected] 2 I.E.S. Usandizaga, Av. de Felipe IV, E-20011 San Sebastián, Spain. [email protected] Abstract Resumen An annotated check-list of the marine benthic flora of the Span- Se presenta un catálogo de la flora bentónica marina de la costa ish Basque coast, based on literature records and original data, vasco-española basado en citas bibliográficas y algunos datos is presented. According to the present taxonomy, the known list originales.
    [Show full text]
  • The Macrobenthic Algae of Beymelek Lagoon (Antalya-Turkey)
    Turkish Journal of Fisheries and Aquatic Sciences 6: 137-147 (2006) The Macrobenthic Algae of Beymelek Lagoon (Antalya-Turkey) Meral Apaydın Ya÷cı1,* 1 E÷irdir Fisheries Research Institute, 32500, E÷irdir, Isparta, Turkey. * Corresponding Author: Tel: +90. 246 313 34 60/130; Fax: +90. 246 313 34 63; Received 03 March 2006 Email: [email protected] Accepted 08 August 2006 Abstract This study was conducted with species the macrobenthic algae which have been seasonally collected from 5 stations located on Beymelek Lagoon Lake and 6 other lying along the coastal areas. Besides, varying salinity rates and the temperature values of the lake depending upon its depth have been measured during the study. Seven species of Chlorophyceae (Gayralia oxysperma (Kützing) K.L. Vinogradova ex Scagel et al., Enteromorpha linza (L.) J.G. Agardh, E. prolifera (O.F. Müll.) J.G. Ag., E. intestinalis Link, Ulva rigida C. Agardh, Chaetomorpha crassa (C. Ag.) Kütz., Cladophora coelothrix (J. Ag.) Harvey) and 2 species of Rhodophyceae (Porphyra leucosticta Thuret in Le Jolis, Polysiphonia urceolata (Lightfoot)) Greville have been found to constitute the macrobenthic algae existence on Beymelek Lagoon Lake. The lake is of mesohalin characteristics in winter-spring seasons and of polihalin characteristics in summer- autumn seasons. The above-mentioned macrobenthic algae except species C. crassa are all new brand floristic records for the region. This study also reveals that the algae Gayralia oxysperma, of which the seasonally changing biomass values were recorded at 5.0 - 55.3 g/m2, can be exploited economically in the region. Key words: Beymelek Lagoon, Macrobenthic, Algae Introduction Materials and Methods Lagoons are shallow coastal bodies of salty or The Study Area and the Sampling Stations brackish water separated from the sea/ocean by a series of barrier islands, which lie parallel to the This study was conducted seasonally.
    [Show full text]