DOCSLIB.ORG

Nuevo Genero De Algas Marinas (Bryopsidaceae, Chlorophyta)

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
Nuevo Genero De Algas Marinas (Bryopsidaceae, Chlorophyta) PSEUDODERBESIA, NUEVO GENERO DE ALGAS MARINAS (BRYOPSIDACEAE, CHLOROPHYTA) EDUARDO CALDERON Av. Estaci6n No. 5AN-41, Ap. 402, Cali, Colombia REINHARD SCHNElTER Bot8nisches Institut I der Justus-Liebeig-Universitaet, Senckenbergstr. 17-21, 0-6300 Giessen, R.F.A. Resumen Se describe Pseudoderbesia como genera nuevo dentro de las Bryopsidaceae. Se aislaron cuatro clones de Pseudoderbesia y se mantuvieron como cultivos unialgales: dos provenientes de la Costa Colombiana del Caribe (P. arbuscula) y dos de las Islas Canarias en el Oceano Atlantica (Pseudoderbesia sp.). Aunque se conoce solo la lase gametolftica, hay razones suficientes para el establecimiento de un nuevo genera. Se describe y discute el crecimiento, variabilidad, producci6n bajo condiciones de cultivo. Se sugiere la posibilidad que ciertas especies de Oerbesia que poseen ramitlcaclon dicotornica y filamentos gradual mente atenuados, como O. fastigiata, O. attenuata y O. padinae, sean real mente miembros de Pseudoderbesia. Abstract Pseudoderbesia is described as a new genus within the Bryopsidaceae. Four clones of Pseudoderbesia were isolated and kept as unialgal cultures: two from the Caribbean coast of Colombia (P. arbuscula) and two from the Canary Islands, Atlantic Ocean (Pseudoderbesia sp.). Although only the gametophylic phase is known, it is distinct enough forthe establishement of a new genus. Growth, variability and swarmer production, under culture conditions, are described and discussed. It is suggested, that some little known species of Oerbesia with dichotomous branching and gradually attenuated filaments, like O. fast/giata, O. attenuata and O. padinae, could actually be members of Pseudoderbesia. Introducci6n sobre el cicio de vida de las Bryopsidaceae (Rie- tema, 1975; Calderon-Saenz & Schnetter, Las Bryopsidaceae constituyen un grupo de al- 1989). EI nivel actual de conocimientos permite gas marinas sifonadas que han sido estudiadas separar los siguientes generos de Bryopsidaceae: intensamente en condiciones de cultivo para re- solver cuestiones atinentes a su cicio de vida Derbesia Solier: cicio digenetico, acusadamente hete- (Kornmann, 1938; Rietema, 1975). Casi todos romorfo. Espor6fito filamentoso simple, con espo- los miembros bien conocidos de esta familia rangios diferenciados. Gamet6fito vesicular (co- poseen ciclos digeneticos heteromorfos, con al- nocido anteriormente como genero Hslicystisi, no ternancia de gametofitos y esporofitos morfolo- holocarpico, con gametangios indiferenciados. gicamente diferentes (Tanner, 198\). En esta Bryopsis Lamouroux: cicio digenetico, acusadamente familia los gametofitos se caracterizan por pro- heteromorfo. Espor6fito microscopico filamento- ducir gametos biflagelados que son descargados so, holocarpico (tarnbien conocido como rnicrota- a traves de papilas gametangiales, mientras que 10), general mente presente. No hay esporangios los esporofitos suelen producir zoosporas estefa- diferenciados. Gametofito filamentoso, pinnado, nocontas, las cuales se liberan por ruptura y/o relativamente grande, con gametangios originados gelatinizacion de las paredes esporangiales. por taponamiento basal de las pinnulas. Pseudobryopsis Berthold: cicio digenetico, acusada- Los avances' logrados recienternente en este mente heteromorfo. Como en Bryopsis, el esporo- campo han tenido hondas repercusiones en la fito es un microtalo general mente holocarpico, sin taxonomfa de este grupo, y la delimitacion de esporangios diferenciados, y el gametofito es pin- los generos ha tenido que ser considerablemente nado, grande; sin embargo, este produce gametan- revisada para ajustarse a los nuevos conceptos gios diferenciados que se originan en las pinnulas. Caldasia 16 (78) 285-294 1991 285 , BryopsidelJa (Feldmann in Rietema) Calderon-Saenz centes Philips TLD-18W y TL-20W, ~:,se man- et Schnetter: cicIo digenetico, ligeramente hetero- tuvieron unos a 23°C bajo un fotopedL~do de morfo, con ambas fases filamentosas, no muy di- 14:10 h (luz: oscuridad), y otros a 25"C baJ;o un ferentes entre sf en tarnafio. Esporofito como el fotoperiodo de 12:12 h. Los cultivos experin1en- de Derbesia, con esporangios diferenciados. Ga- tales se mantuvieron a intensidades lumini,"cas metofito plumoso 0 heterotrico, con gametangios de 5.6 - 7.4 W/m', y los cultivos de reser\va indiferenciados producidos en pinnulas 0 en cual- quier region del talo. (stock cultures) a 0.1 - 0.5 W/m'. Las algas ~:e cultivaron en recipientes de poliestireno de 2:"' Pedobesia MacRaild et Womersley: cicio posible- ml y 80 ml de capacidad, y el medio de cultivo mente monogenetico (han sido formuladas ciertas se renovo semanalmente en los cultivos experi- dudas al respecto). Como en Derbesia, el tala mentales, 0 cada 2-3 meses en los cultivos de consiste en un esporofito filamentoso con esporan- gios diferenciados. Sin embargo, la parte basal reserva. del talo tiene apariencia costrosa, con depositos Los terminos "gametofito", "garneto", "game- de carbonato de calcio .. tangio", "gametogenesis", etc., seran usados Lambia Delepine: cicio desconocido. Genera de por conveniencia. aguas antarticas, aun no estudiado en condiciones de cultivo. EI talo es un garnetofito estolonffero Material de herbario examinado de filamentos erectos, gruesos, poco 0 nada rami- ficados, con gametangios indiferenciados. Derbesia ? fastigiata Taylor: Florida, Dry Tortu- Durante investigaciones sobre el cicio de vida gas, Loggerhead Key, 28 Jun 1924, W. R. Ta- de algunas algas verdes sifonadas (Bryopsida- ylor s.n. (Lectotipo MICH 11136); Florida, Dry ceae), en condiciones de cultivo unialgal, reali- Tortugas, Garden Key, 13 jul 1924, W. R. Ta- zadas en el Instituto de Botanica de la Universi- ylor s.n. (MICH 11135). dad de Giessen (RFA) entre 1985 y 1989, bajo el auspicio del Servicio Aleman de Intercambio Derbesia attenuata Dawson: Viet Nam, Nha Academico (DAAD) y del Botanisches Institut Trang Bay, Hon Mieu, 3 feb 1953, E. Y. Daw- I de la Universidad de Giessen (R.F.A.), fue son 11248 (Holotipo US 7681, Isotipos AHFH posible aislar y obtener cultivos puros, entre 4329 Y AHFH 2361); Islas Galapagos, Santa otros, de cuatro clones de Bryopsidaceae (a juz- Cruz, Indefatigable, Bahia Tortuga, 9 mar 1962, gar por los talos verdes, sifonados, homoplasti- E. Y. et C. M. Dawson 22359 (US 5000, AHFH diales, y por la produccion de celulas biflagela- 74085, AHFH 3184 Y AHFH 5988); Islas Gala- das isocontas) provenientes de la costa del Ca- pagos, Bahia Tortuga, 9 mar 1962, E. Y. Daw- ribe de Colombia (clones No. i y 2) Y de las son 224 10 (AHFH 5961); Colombia, Isla Gorgo- Islas Canarias en el Oceano Atlantico (clones na, 19 may 1979, G. Bula C-199 (Herb. M. L. No.3 y 4). Teniendo en cuenta las coincidencias et R. Schneller). con otros miembros de las Bryopsidaceae pro- ductores de celulas biflageladas, los clones Las colecciones de AHFH han sido reciente- arriba mencionados se consideraran gametoffti- mente transferidas a LAM. cos, aunque de ello falta una prueba directa. Metodologia Resultados Los cultivos unialgales se obtuvieron a partir de Los cuatro clones cultivados mostraron gran si- los apices 0 filamentos en activo crecimiento y militud rnorfologica entre sf: los ejes rastreros Iibres de epifitas, previamente lavados con me- (estolones) presentaban nudos, entrenudos, ri- dio de cultivo esteril. Como medio de cultivo zoides y ramas erectas, estas ultimas arborescen- se utilize agua marina enriquecida segun Von tes, dicotomicamente ramificadas y con segmen- Stosch (vease formula en Schneller et al., 1984), tos paulatinamente atenuados en diametro, En ajustada a una salinidad de 30%. Los cultivos tres de los cuatro clones mencionados se obser- se iluminaron desde arriba con Iarnparas fluores- varon celulas biflageladas producidas en las ra- 286 Caldasia Vol. 16, 1991 Ih V/ c o ~~ ~~ ~® E@ ® o @... F - ~ Figura 1. Pseudoderbesia arbuscula Escalas: A,D, 1 mm; B-C, 100 urn: E-F, 10 urn. A. Aspecto del talo vivo, con los ejes rastreros adherlcos al fonda del recipiente de cultivo; B-C. dos nudes de los ejes rastreros, vistos desde abajo con el microscopio invertido. Observese el halo mucilaginoso (punteado fino) alrededor de rizoides y nudos. EI circulo de puntos de nota la inserci6n de la rama erecta, perpendicular a las partes rastreras; D. rama erecta transformada en gametangio, con formaci6n de un septa suprabasal (flecha grande). Observese la red citoplasrnatica y las papilas de descarga (flechas pequenas) limitadas a la regi6n basal del gametangio; E. c1oroplastos con un pirenoide polipiramidal; F. gameto. Calderon & Schneiter: Pseuaooerbesie 287 mas erectas. Esto indica que los talos aislados lis 60-90° abeuntibus. Rami erecti usque ad 4.3 son probablemente gamet6fitos y que no perte- mm longi, 1-4, plo sub angulis 30-45° furcati, necen al genero Derbesie, a pesar de un cierto 54-84 um diam. basi, 18-24 urn ad cacumina. parecido con los espor6fitos de este genero. Esta Rhizoidea brevia, distaliter lobata, interdum re- combinaci6n de caracteristicas no se conoce curvata, mucum visibilem secementia. Rami hasta ahora en ningun genero de Bryopsidaceae. erecti per formationern septorum proxime super Por consiguiente, proponemos establecer un basem in gametangia transformantes. Gametae nuevo genero de algas dentro de esta familia .• praecipue in base gametangii nascentes. Pseudoderbesia gen. nov. Ejes rastreros compuestos por nudos de 60-120 urn diam, y entrenudos de 24-35 urn diam., Thallus filamentosus, siphonaceus, ramosus, con ejes rastreros secundarios similares, opues- non constrictus, axibus
Load more

Recommended publications
  • The Cell Walls of Green Algae: a Journey Through Evolution and Diversity
    The cell walls of green algae a journey through evolution and diversity Domozych, David S.; Ciancia, Marina; Fangel, Jonatan Ulrik; Mikkelsen, Maria Dalgaard; Ulvskov, Peter; Willats, William George Tycho Published in: Frontiers in Plant Science DOI: 10.3389/fpls.2012.00082 Publication date: 2012 Document version Publisher's PDF, also known as Version of record Citation for published version (APA): Domozych, D. S., Ciancia, M., Fangel, J. U., Mikkelsen, M. D., Ulvskov, P., & Willats, W. G. T. (2012). The cell walls of green algae: a journey through evolution and diversity. Frontiers in Plant Science, 3. https://doi.org/10.3389/fpls.2012.00082 Download date: 27. Sep. 2021 MINI REVIEW ARTICLE published: 08 May 2012 doi: 10.3389/fpls.2012.00082 The cell walls of green algae: a journey through evolution and diversity David S. Domozych1*, Marina Ciancia2, Jonatan U. Fangel 3, Maria Dalgaard Mikkelsen3, Peter Ulvskov 3 and William G.T.Willats 3 1 Department of Biology and Skidmore Microscopy Imaging Center, Skidmore College, Saratoga Springs, NY, USA 2 Cátedra de Química de Biomoléculas, Departamento de Biología Aplicada y Alimentos, Facultad de Agronomía, Universidad de Buenos Aires, Buenos Aires, Argentina 3 Department of Plant Biology and Biochemistry, Faculty of Life Sciences, University of Copenhagen, Frederiksberg, Denmark Edited by: The green algae represent a large group of morphologically diverse photosynthetic eukary- Jose Manuel Estevez, University of otes that occupy virtually every photic habitat on the planet. The extracellular coverings of Buenos Aires and Consejo Nacional de Investigaciones Científicas y green algae including cell walls are also diverse. A recent surge of research in green algal Técnicas, Argentina cell walls fueled by new emerging technologies has revealed new and critical insight con- Reviewed by: cerning these coverings.
    [Show full text]
  • Marine Algae of French Frigate Shoals, Northwestern Hawaiian Islands: Species List and Biogeographic Comparisons1
    Marine Algae of French Frigate Shoals, Northwestern Hawaiian Islands: Species List and Biogeographic Comparisons1 Peter S. Vroom,2 Kimberly N. Page,2,3 Kimberly A. Peyton,3 and J. Kanekoa Kukea-Shultz3 Abstract: French Frigate Shoals represents a relatively unpolluted tropical Pa- cific atoll system with algal assemblages minimally impacted by anthropogenic activities. This study qualitatively assessed algal assemblages at 57 sites, thereby increasing the number of algal species known from French Frigate Shoals by over 380% with 132 new records reported, four being species new to the Ha- waiian Archipelago, Bryopsis indica, Gracilaria millardetii, Halimeda distorta, and an unidentified species of Laurencia. Cheney ratios reveal a truly tropical flora, despite the subtropical latitudes spanned by the atoll system. Multidimensional scaling showed that the flora of French Frigate Shoals exhibits strong similar- ities to that of the main Hawaiian Islands and has less commonality with that of most other Pacific island groups. French Frigate Shoals, an atoll located Martini 2002, Maragos and Gulko 2002). close to the center of the 2,600-km-long Ha- The National Oceanic and Atmospheric Ad- waiian Archipelago, is part of the federally ministration (NOAA) Fisheries Coral Reef protected Northwestern Hawaiian Islands Ecosystem Division (CRED) and Northwest- Coral Reef Ecosystem Reserve. In stark con- ern Hawaiian Islands Reef Assessment and trast to the more densely populated main Ha- Monitoring Program (NOWRAMP) began waiian Islands, the reefs within the ecosystem conducting yearly assessment and monitoring reserve continue to be dominated by top of subtropical reef ecosystems at French predators such as sharks and jacks (ulua) and Frigate Shoals in 2000 to better support the serve as a refuge for numerous rare and long-term conservation and protection of endangered species no longer found in more this relatively intact ecosystem and to gain a degraded reef systems (Friedlander and De- better understanding of natural biological and oceanographic processes in this area.
    [Show full text]
  • Laboratory Studies on Vegetative Regeneration of the Gametophyte of Bryopsis Hypnoides Lamouroux (Chlorophyta, Bryopsidales)
    African Journal of Biotechnology Vol. 9(8), pp. 1266-1273, 22 February, 2010 Available online at http://www.academicjournals.org/AJB DOI: 10.5897/AJB10.1606 ISSN 1684–5315 © 2010 Academic Journals Full Length Research Paper Laboratory studies on vegetative regeneration of the gametophyte of Bryopsis hypnoides Lamouroux (Chlorophyta, Bryopsidales) Naihao Ye 1*, Hongxia Wang 2, Zhengquan Gao 3 and Guangce Wang 2 1Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao 266071, China. 2Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China. 3School of Life Sciences, Shandong University of Technology, Zibo 255049, China. Accepted 14 January, 2010 Vegetative propagation from thallus segments and protoplasts of the gametophyte of Bryopsis hypnoides Lamouroux (Chlorophyta, Bryopsidales) was studied in laboratory cultures. Thallus segments were cultured at 20°C, 20 µmol photons m -2 s-1, 12:12 h LD); protoplasts were cultured under various conditions, viz. 15°C, 15 µmol photons m -2 s-1, 10:14 h LD; 20°C, 20 µmol photons m -2 s-1, 12:12 h LD; and 25°C, 25 µmol photons m -2 s-1, 14:10 h LD. Microscope observation revealed that the protoplast used for regeneration was only part of the protoplasm and the regeneration process was complete in 12 h. The survival rate of the segments was 100% and the survival rate of protoplasts was around 15%, regardless of culture conditions. Protoplasts were very stable in culture and were tolerant of unfavorable conditions. Cysts developed at the distal end or middle portion of gametophytic filaments under low illumination (2 - 5 µmol photons m -2 s-1), the key induction factor.
    [Show full text]
  • Reassessment of the Classification of Bryopsidales (Chlorophyta) Based on T Chloroplast Phylogenomic Analyses ⁎ Ma
    Molecular Phylogenetics and Evolution 130 (2019) 397–405 Contents lists available at ScienceDirect Molecular Phylogenetics and Evolution journal homepage: www.elsevier.com/locate/ympev Reassessment of the classification of Bryopsidales (Chlorophyta) based on T chloroplast phylogenomic analyses ⁎ Ma. Chiela M. Cremena, , Frederik Leliaertb,c, John Westa, Daryl W. Lamd, Satoshi Shimadae, Juan M. Lopez-Bautistad, Heroen Verbruggena a School of BioSciences, University of Melbourne, Parkville, 3010 Victoria, Australia b Botanic Garden Meise, 1860 Meise, Belgium c Department of Biology, Phycology Research Group, Ghent University, 9000 Ghent, Belgium d Department of Biological Sciences, The University of Alabama, 35487 AL, USA e Faculty of Core Research, Natural Science Division, Ochanomizu University, 2-1-1 Otsuka, Bunkyo, Tokyo 112-8610, Japan ARTICLE INFO ABSTRACT Keywords: The Bryopsidales is a morphologically diverse group of mainly marine green macroalgae characterized by a Siphonous green algae siphonous structure. The order is composed of three suborders – Ostreobineae, Bryopsidineae, and Seaweeds Halimedineae. While previous studies improved the higher-level classification of the order, the taxonomic Chloroplast genome placement of some genera in Bryopsidineae (Pseudobryopsis and Lambia) as well as the relationships between the Phylogeny families of Halimedineae remains uncertain. In this study, we re-assess the phylogeny of the order with datasets Ulvophyceae derived from chloroplast genomes, drastically increasing the taxon sampling by sequencing 32 new chloroplast genomes. The phylogenies presented here provided good support for the major lineages (suborders and most families) in Bryopsidales. In Bryopsidineae, Pseudobryopsis hainanensis was inferred as a distinct lineage from the three established families allowing us to establish the family Pseudobryopsidaceae. The Antarctic species Lambia antarctica was shown to be an early-branching lineage in the family Bryopsidaceae.
    [Show full text]
  • A History and Annotated Account of the Benthic Marine Algae of Taiwan
    SMITHSONIAN CONTRIBUTIONS TO THE MARINE SCIENCES • NUMBER 29 A History and Annotated Account of the Benthic Marine Algae of Taiwan Jane E. Lewis and James N. Norris SMITHSONIAN INSTITUTION PRESS Washington, D.C. 1987 ABSTRACT Lewis, Jane E., and James N. Norris. A History and Annotated Account of the Benthic Marine Algae of Taiwan. Smithsonian Contributions to the Marine Sciences, number 29, 38 pages, 1 figure, 1987.—Records of the benthic marine algae of the Island of Taiwan and neighboring islands have been organized in a floristic listing. All publications with citations of benthic marine green algae (Chlorophyta), brown algae (Phaeophyta), and red algae (Rhodophyta) in Taiwan are systematically ar­ ranged under the currently accepted nomenclature for each species. The annotated list includes names of almost 600 taxa, of which 476 are recognized today. In comparing the three major groups, the red algae predominate with 55% of the reported species, the green algae comprise 24%, and the browns 21%. Laurencia brongniartii}. Agardh is herein reported for Taiwan for the first time. The history of modern marine phycology in the Taiwan region is reviewed. Three periods of phycological research are recognized: the western (1866-1905); Japanese (1895-1945); and Chinese (1950-present). Western phycologists have apparently overlooked the large body of Japanese studies, which included references and records of Taiwan algae. By bringing together in one place all previous records of the Taiwanese marine flora, it is our expectation that this work will serve as a basis for further phycological investigations in the western Pacific region. OFFICIAL PUBLICATION DATE is handstamped in a limited number of initial copies and is recorded in the Institution's annual report, Smithsonian Year.
    [Show full text]
  • AAPP | Atti Della Accademia Peloritana Dei Pericolanti Classe Di Scienze Fisiche, Matematiche E Naturali ISSN 1825-1242
    DOI: 10.1478/C1A1002005 AAPP j Atti della Accademia Peloritana dei Pericolanti Classe di Scienze Fisiche, Matematiche e Naturali ISSN 1825-1242 Vol. LXXXVIII, No. 2, C1A1002005 (2010) A REVIEW OF LIFE HISTORY PATHWAYS IN BRYOPSIS a∗ a a MARINA MORABITO ,GAETANO M. GARGIULO , AND GIUSI GENOVESE (Communication presented by Prof. Giacomo Tripodi) ABSTRACT. The genus Bryopsis comprises siphonous green algae widely distributed from tropical to polar seas. Despite the early reports on the simplicity of its life history, subse- quent culture observations showed variety of life history patterns, even within a single species. Karyological data and reports on DNA quantification led to somewhat contradic- tory conclusions about the ploidy level of the two life history phases and about the moment of meiosis. Long term observations on Mediterranean species highlighted new alternatives in recycling of the two morphological phases. Looking at all published experimental data, we summarize all life history pathways of Bryopsis species. 1. Introduction The genus Bryopsis J.V. Lamouroux [1] comprises green algae consisting of tubular multinucleate (siphonous) axes, lacking cross walls, variously branched with a feather-like appearance. Species are widely distributed from tropical to polar seas. Despite the early reports on the simplicity of its life history [2, 3], subsequent culture observations showed a more complex cycle [4-9]. A discovery of variety of life history patterns, even within a single species, and of new reproductive characters [7, 8, 10] led to the establishment of new genera: Pseudobryopsis Berthold in Oltmanns [11], a Bryopsis-looking alga differing because of peculiar pyriform gametangia, and Bryopsidella J.
    [Show full text]
  • Bryopsis Spp.: Generalities, Chemical and Biological Activities
    Pharmacogn Rev. 2019;13(26):63-70 A multifaceted peer reviewed journal in the field of Pharmacognosy and Natural Products Plant Reviews www.phcogrev.com | www.phcog.net Bryopsis spp.: Generalities, Chemical and Biological Activities Neyder Contreras1,*, Antistio Alvíz2, Jaison Torres3, Sergio Uribe1 ABSTRACT Bryopsis spp, is a marine green algae distributed in tropical regions of worldwide which have been few studied a level of their chemical constitution and evaluation of properties of bioactive metabolites and derivatives with a high potential pharmacological in treatment of possible disease related with viral, fungi and bacterial diseases. Relevant information was selected from scientific journals, books and electronic reports employed database including PubMed, Science Direct, Scielo and Google Scholar. This review describe different aspects of the Bryopsis spp. such as general characteristics, some species found in tropical regions included in Colombia, metabolites derivatives and finally roles in the pharmacological activity with promissory application in drug discovery and therapies related with antitumoral, anti- oxidant, antimicrobial, antiviral, anti-larvicidal, anticoagulant and antileishmanial. This review offers a new vision of the knowledge about of studies of product naturals and specifically in the investigations referred to Bryopsis spp. may be of great significance for the discovery of drugs for future treatments; thus may be generated new literature of natural elements and its potential drug target. Key words: Bryopsis spp, Activity, Algae, Metabolites. Neyder Contreras1,*, INTRODUCTION Antistio Alvíz2, Jaison 3 1 For several decades it has been shown that marine as elements antioxidant, antimicrobial, anti-inflam- Torres , Sergio Uribe organisms are an important and representative matory, anticoagulant, antiprotozoal and antitumor [10,18-23] 1GINUMED, Faculty of Medicine, source of new potentially bioactive metabolites, such activity.
    [Show full text]
  • Pseudoderbesia Eckloniae, Sp. Nov. (Bryopsidaceae, Ulvophyceae) from Western Australia
    cryptogamie Algologie 2020 ● 41 ● 3 DIRECTEUR DE LA PUBLICATION : Bruno DAVID, Président du Muséum national d’Histoire naturelle RÉDACTEUR EN CHEF / EDITOR-IN-CHIEF : Line LE GALL ASSISTANT DE RÉDACTION / ASSISTANT EDITOR : Audrina NEVEU ([email protected]) MISE EN PAGE / PAGE LAYOUT : Audrina NEVEU 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 Repubwlic) 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, University of Melbourne, Victoria, 3010 (Australia) Algal physiology
    [Show full text]
  • Biodiversity & Endangered Species
    International Journal of Biodiversity & Endangered Species Vasquez-Carrillo C and Sullivan Sealey KS. Int J Biodivers Endanger Species: IJBES-106. Research Article DOI: 10.29011/ IJBES-106.100006 Diversity and Extent of Coastal Submerged Aquatic Vegetation in an Unexplored Coastal Upwelling Region of the Caribbean Sea C. Vasquez-Carrillo*, K. Sullivan Sealey Coastal Ecology Laboratory, Department of Biology, University of Miami, FL, USA *Corresponding author: C. Vasquez-Carrillo, Coastal Ecology Laboratory, Department of Biology, University of Miami, FL, USA. Tel: +16085145833; Email: [email protected] Citation: Vasquez-Carrillo C, Sullivan Sealey KS (2018) Diversity and Extent of Coastal Submerged Aquatic Vegetation in an Unexplored Coastal Upwelling Region of the Caribbean Sea. Int J Biodivers Endanger Species: IJBES-106. DOI: 10.29011/ IJBES- 106.100006 Received Date: 11 September, 2018; Accepted Date: 01 October, 2018; Published Date: 08 October, 2018 Abstract The Tropical North Western Atlantic (aka the wider Caribbean) is a large marine ecoregion with patterns of marine species’ diversity that both need elucidation and protection. The wider Caribbean is facing rapid changes associated with anthropogenic activities of coastal alteration, pollution loading and weather patterns, with losses of biodiversity expected. Submerged Aquatic Vegetation (SAV) is a key component of marine communities adding both structural complexity and species diversity to the wider Caribbean. This study aimed to examine SAV species assemblages and their extent at a unique coastal ecosystem in the Southern Caribbean Sea. This ecosystem remains unexplored for its nearshore marine biodiversity due to its remoteness and harsh environmental conditions. The study took place at ten survey sites in shallow nearshore waters of northeastern La Guajira peninsula of Colombia.
    [Show full text]
  • Diversity and Distribution of Seaweeds from the West Coast of Maharashtra
    J. Algal Biomass Utln. 2017, 8(3): 29- 39 Distribution of Seaweeds from the West Coast of Maharashtra eISSN: 2229 – 6905 Diversity and Distribution of Seaweeds from the West Coast of Maharashtra Waghmode A.V Department of Botany, Rajarshi Chh. Shahu College, Kadamwadi, Kolhapur-416004. E-mail: [email protected] Abstract The purpose of this research is to introduce the diversity of algal flora along the west coast of Maharashtra. The present study of seaweeds was conducted at west coast of Maharashtra formed of different inter-tidal rock shores with rich algal vegetation. During the study period (Aug 2015 to Feb 2016), total 73 species of seaweeds were recorded. An updated species list has been compiled on the basis of fresh collections. Of these 21 species belong to Chlorophyta, 17 species to Phaeophyta and 33 species to Rhodophyta. Among them, Blue-green algae like Lyngbya, Microcoleus were found all over the west coast. Red algae were found more, then the green and brown from the west coast of Maharashtra. Caulerpa spp were observed only at Sindhudurgh and Raighad district. S. ilicifolium were found commonly throughout the west coast. Keywords: Diversity, Seaweeds distribution, Maharashtra coast Introduction Algae are the most common marine vegetation commonly called “Seaweeeds”. They are classified into Blue-green (Cyanophyta), Green (Chlorophyta), Brown (Phaeophyta) and Red (Rhodophyta). Seaweeds play important role in marine food chains. It is suggested that seaweeds could become a major food and energy resource in the 21st century. Biodiversity is the variety among living organisms and the ecological complexes in which they occur.
    [Show full text]
  • Bryopsis Plumosa !
    Bryopsis plumosa 50.670 (Hudson) C. Agardh filament MACRO PLANT Techniques needed and shape pinnate Classification Phylum: Chlorophyta; Order: Bryopsidales; Family: Bryopsidaceae *Descriptive name green plumes Features 1. plants bright green, 20 –250mm tall, branches spreading 2. many upright stalks (axes) arise from basal branching rhizoids 3. side branches and ultimate branches (ramuli) are thin, long and arranged in 2 rows in one flat surface (pinnately) Variations plants can be robust or delicate. Branching may be definitely pinnate only near branch tips ! Special requirements: 1. view the rarely-divided (coenocytic) filaments microscopically 2. measure the main stalks (axes): they should be about 0.3 – 1.0mm across 3. view the ramuli near the stalk tips to see the characteristic pinnate arrangement Occurrences from Rottnest I., W. Australia and S. Australia to Port Phillip, Victoria Usual Habitat on rock in intertidal pools or shallow water of sheltered localities Similar Species Description in the Benthic Flora Part I, pages 282-285 Details of Anatomy 2. 1. Preserved (bleached) and colourised specimens from Waterloo Bay, West ram ram coast S. Australia (A53137) 1. dense branching along the upper part of a main ax stalk (axis, ax). Side branches (s br) and ultimate branches s br (ramuli, ram) arise in 2 rows although this becomes difficult to see s br moving down the stalk 2. flat two-sided (pinnate) branching of ramuli at a branch tip * Descriptive names are inventions to aid identification, and are not commonly used “Algae Revealed” R N Baldock, S Australian State Herbarium, July 2005 3. Specimens of Bryopsis plumosa (Hudson) C.
    [Show full text]
  • Characterization of Cell Wall Polysaccharides of the Coencocytic Green Seaweed Bryopsis Plumosa (Bryopsidaceae, Chlorophyta) from the Argentine Coast1
    J. Phycol. 48, 326–335 (2012) Ó 2012 Phycological Society of America DOI: 10.1111/j.1529-8817.2012.01131.x CHARACTERIZATION OF CELL WALL POLYSACCHARIDES OF THE COENCOCYTIC GREEN SEAWEED BRYOPSIS PLUMOSA (BRYOPSIDACEAE, CHLOROPHYTA) FROM THE ARGENTINE COAST1 Marina Ciancia 2,3 Ca´tedra de Quı´mica de Biomole´culas, Departamento de Biologı´a Aplicada y Alimentos (CIHIDECAR-CONICET), Facultad de Agronomı´a, Universidad de Buenos Aires, Av. San Martı´n 4453, C1417DSE Buenos Aires, Argentina Josefina Alberghina Departamento de Ecologı´a Gene´tica y Evolucio´n, Facultad de Ciencias Exactas y Naturales, Ciudad Universitaria-Pabello´n 2, 1428 Buenos Aires, Argentina Paula Ximena Arata Ca´tedra de Quı´mica de Biomole´culas, Departamento de Biologı´a Aplicada y Alimentos (CIHIDECAR-CONICET), Facultad de Agronomı´a, Universidad de Buenos Aires, Av. San Martı´n 4453, C1417DSE Buenos Aires, Argentina Hugo Benavides Instituto Nacional de Investigacio´n y Desarrollo Pesquero (INIDEP), Paseo Victoria Ocampo Nº 1, Escollera Norte, B7602HSA Mar del Plata, Buenos Aires, Argentina Frederik Leliaert, Heroen Verbruggen Phycology Research Group and Center for Molecular Phylogenetics and Evolution, Ghent University, Krijgslaan 281 (S8), B-9000 Gent, Belgium and Jose Manuel Estevez 3 Instituto de Fisiologı´a, Biologı´a Molecular y Neurociencias (IFIBYNE-CONICET), Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Ciudad Universitaria, 1428 Buenos Aires, Argentina Bryopsis sp. from a restricted area of the rocky seaweeds of the genus Codium (Bryopsidales, Chloro- shore of Mar del Plata (Argentina) on the Atlantic phyta), but some important differences were also coast was identified as Bryopsis plumosa (Hudson) found.
    [Show full text]