Uncovering Unique Green Algae and Cyanobacteria Isolated from Biocrusts in Highly Saline Potash Tailing Pile Habitats, Using an Integrative Approach
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A Close-Up View on ITS2 Evolution and Speciation
Caisová et al. BMC Evolutionary Biology 2011, 11:262 http://www.biomedcentral.com/1471-2148/11/262 RESEARCH ARTICLE Open Access A close-up view on ITS2 evolution and speciation - a case study in the Ulvophyceae (Chlorophyta, Viridiplantae) Lenka Caisová1,2,3*†, Birger Marin1† and Michael Melkonian1 Abstract Background: The second Internal Transcriber Spacer (ITS2) is a fast evolving part of the nuclear-encoded rRNA operon located between the 5.8S and 28S rRNA genes. Based on crossing experiments it has been proposed that even a single Compensatory Base Change (CBC) in helices 2 and 3 of the ITS2 indicates sexual incompatibility and thus separates biological species. Taxa without any CBC in these ITS2 regions were designated as a ‘CBC clade’. However, in depth comparative analyses of ITS2 secondary structures, ITS2 phylogeny, the origin of CBCs, and their relationship to biological species have rarely been performed. To gain ‘close-up’ insights into ITS2 evolution, (1) 86 sequences of ITS2 including secondary structures have been investigated in the green algal order Ulvales (Chlorophyta, Viridiplantae), (2) after recording all existing substitutions, CBCs and hemi-CBCs (hCBCs) were mapped upon the ITS2 phylogeny, rather than merely comparing ITS2 characters among pairs of taxa, and (3) the relation between CBCs, hCBCs, CBC clades, and the taxonomic level of organisms was investigated in detail. Results: High sequence and length conservation allowed the generation of an ITS2 consensus secondary structure, and introduction of a novel numbering system of ITS2 nucleotides and base pairs. Alignments and analyses were based on this structural information, leading to the following results: (1) in the Ulvales, the presence of a CBC is not linked to any particular taxonomic level, (2) most CBC ‘clades’ sensu Coleman are paraphyletic, and should rather be termed CBC grades. -
Old Woman Creek National Estuarine Research Reserve Management Plan 2011-2016
Old Woman Creek National Estuarine Research Reserve Management Plan 2011-2016 April 1981 Revised, May 1982 2nd revision, April 1983 3rd revision, December 1999 4th revision, May 2011 Prepared for U.S. Department of Commerce Ohio Department of Natural Resources National Oceanic and Atmospheric Administration Division of Wildlife Office of Ocean and Coastal Resource Management 2045 Morse Road, Bldg. G Estuarine Reserves Division Columbus, Ohio 1305 East West Highway 43229-6693 Silver Spring, MD 20910 This management plan has been developed in accordance with NOAA regulations, including all provisions for public involvement. It is consistent with the congressional intent of Section 315 of the Coastal Zone Management Act of 1972, as amended, and the provisions of the Ohio Coastal Management Program. OWC NERR Management Plan, 2011 - 2016 Acknowledgements This management plan was prepared by the staff and Advisory Council of the Old Woman Creek National Estuarine Research Reserve (OWC NERR), in collaboration with the Ohio Department of Natural Resources-Division of Wildlife. Participants in the planning process included: Manager, Frank Lopez; Research Coordinator, Dr. David Klarer; Coastal Training Program Coordinator, Heather Elmer; Education Coordinator, Ann Keefe; Education Specialist Phoebe Van Zoest; and Office Assistant, Gloria Pasterak. Other Reserve staff including Dick Boyer and Marje Bernhardt contributed their expertise to numerous planning meetings. The Reserve is grateful for the input and recommendations provided by members of the Old Woman Creek NERR Advisory Council. The Reserve is appreciative of the review, guidance, and council of Division of Wildlife Executive Administrator Dave Scott and the mapping expertise of Keith Lott and the late Steve Barry. -
Transcriptional Landscapes of Lipid Producing Microalgae Benoît M
Transcriptional landscapes of lipid producing microalgae Benoît M. Carrères 2019 Transcriptional landscapes of lipid producing microalgae Benoî[email protected]:~$ ▮ Transcriptional landscapes of lipid producing microalgae Benoît Manuel Carrères Thesis committee Promotors Prof. Dr Vitor A. P. Martins dos Santos Professor of Systems and Synthetic Biology Wageningen University & Research Prof. Dr René H. Wij$els Professor of Bioprocess Engineering Wageningen University & Research Co-promotors Dr Peter J. Schaa% Associate professor* Systems and Synthetic Biology Wageningen University & Research Dr Dirk E. Martens Associate professor* Bioprocess Engineering Wageningen University & Research ,ther mem-ers Prof. Dr Alison Smith* University of Cam-ridge Prof. Dr. Dic+ de Ridder* Wageningen University & Research Dr Aalt D.). van Di#+* Wageningen University & Research Dr Ga-ino Sanche/(Pere/* Genetwister* Wageningen This research 0as cond1cted under the auspices of the .rad1ate School V2A. 3Advanced studies in Food Technology* Agro-iotechnology* Nutrition and Health Sciences). Transcriptional landscapes of lipid producing microalgae Benoît Manuel Carrères Thesis su-mitted in ful8lment of the re9uirements for the degree of doctor at Wageningen University -y the authority of the Rector Magnificus, Prof. Dr A.P.). Mol* in the presence of the Thesis' ommittee a%%ointed by the Academic Board to be defended in pu-lic on Wednesday 2; Novem-er 2;<= at 1.>; p.m in the Aula. Benoît Manuel Carrères 5ranscriptional landsca%es of lipid producing -
Distribution of the Water-Soluble Astaxanthin Binding Carotenoprotein (Astap) in Scenedesmaceae
marine drugs Article Distribution of the Water-Soluble Astaxanthin Binding Carotenoprotein (AstaP) in Scenedesmaceae Hiroki Toyoshima 1, Ami Miyata 1, Risako Yoshida 1, Taichiro Ishige 2, Shinichi Takaichi 3 and Shinji Kawasaki 1,3,* 1 Department of Bioscience, Tokyo University of Agriculture, 1-1-1 Sakuragaoka, Setagaya-ku, Tokyo 156-8502, Japan; [email protected] (H.T.); [email protected] (A.M.); [email protected] (R.Y.) 2 NODAI Genome Research Centre, Tokyo University of Agriculture, 1-1-1 Sakuragaoka, Setagaya-ku, Tokyo 156-8502, Japan; [email protected] 3 Department of Molecular Microbiology, Tokyo University of Agriculture, 1-1-1 Sakuragaoka, Setagaya-ku, Tokyo 156-8502, Japan; [email protected] * Correspondence: [email protected]; Tel.: +81-3-5477-2764 Abstract: Photooxidative stress-inducible water-soluble astaxanthin-binding proteins, designated as AstaP,were identified in two Scenedesmaceae strains, Coelastrella astaxanthina Ki-4 and Scenedesmus obtusus Oki-4N; both strains were isolated under high light conditions. These AstaPs are classified as a novel family of carotenoprotein and are useful for providing valuable astaxanthin in water-soluble form; however, the distribution of AstaP orthologs in other microalgae remains unknown. Here, we exam- ined the distribution of AstaP orthologs in the family Scenedesmaceae with two model microalgae, Chlamydomonas reinhardtii and Chlorella variabilis. The expression of AstaP orthologs under photooxida- Citation: Toyoshima, H.; Miyata, A.; tive stress conditions was detected in cell extracts of Scenedesmaceae strains, but not in model algal Yoshida, R.; Ishige, T.; Takaichi, S.; strains. Aqueous orange proteins produced by Scenedesmaceae strains were shown to bind astaxanthin. -
Permian–Triassic Non-Marine Algae of Gondwana—Distributions
Earth-Science Reviews 212 (2021) 103382 Contents lists available at ScienceDirect Earth-Science Reviews journal homepage: www.elsevier.com/locate/earscirev Review Article Permian–Triassic non-marine algae of Gondwana—Distributions, natural T affinities and ecological implications ⁎ Chris Maysa,b, , Vivi Vajdaa, Stephen McLoughlina a Swedish Museum of Natural History, Box 50007, SE-104 05 Stockholm, Sweden b Monash University, School of Earth, Atmosphere and Environment, 9 Rainforest Walk, Clayton, VIC 3800, Australia ARTICLE INFO ABSTRACT Keywords: The abundance, diversity and extinction of non-marine algae are controlled by changes in the physical and Permian–Triassic chemical environment and community structure of continental ecosystems. We review a range of non-marine algae algae commonly found within the Permian and Triassic strata of Gondwana and highlight and discuss the non- mass extinctions marine algal abundance anomalies recorded in the immediate aftermath of the end-Permian extinction interval Gondwana (EPE; 252 Ma). We further review and contrast the marine and continental algal records of the global biotic freshwater ecology crises within the Permian–Triassic interval. Specifically, we provide a case study of 17 species (in 13 genera) palaeobiogeography from the succession spanning the EPE in the Sydney Basin, eastern Australia. The affinities and ecological im- plications of these fossil-genera are summarised, and their global Permian–Triassic palaeogeographic and stra- tigraphic distributions are collated. Most of these fossil taxa have close extant algal relatives that are most common in freshwater, brackish or terrestrial conditions, and all have recognizable affinities to groups known to produce chemically stable biopolymers that favour their preservation over long geological intervals. -
Lateral Gene Transfer of Anion-Conducting Channelrhodopsins Between Green Algae and Giant Viruses
bioRxiv preprint doi: https://doi.org/10.1101/2020.04.15.042127; this version posted April 23, 2020. The copyright holder for this preprint (which was not certified by peer review) is the author/funder, who has granted bioRxiv a license to display the preprint in perpetuity. It is made available under aCC-BY-NC-ND 4.0 International license. 1 5 Lateral gene transfer of anion-conducting channelrhodopsins between green algae and giant viruses Andrey Rozenberg 1,5, Johannes Oppermann 2,5, Jonas Wietek 2,3, Rodrigo Gaston Fernandez Lahore 2, Ruth-Anne Sandaa 4, Gunnar Bratbak 4, Peter Hegemann 2,6, and Oded 10 Béjà 1,6 1Faculty of Biology, Technion - Israel Institute of Technology, Haifa 32000, Israel. 2Institute for Biology, Experimental Biophysics, Humboldt-Universität zu Berlin, Invalidenstraße 42, Berlin 10115, Germany. 3Present address: Department of Neurobiology, Weizmann 15 Institute of Science, Rehovot 7610001, Israel. 4Department of Biological Sciences, University of Bergen, N-5020 Bergen, Norway. 5These authors contributed equally: Andrey Rozenberg, Johannes Oppermann. 6These authors jointly supervised this work: Peter Hegemann, Oded Béjà. e-mail: [email protected] ; [email protected] 20 ABSTRACT Channelrhodopsins (ChRs) are algal light-gated ion channels widely used as optogenetic tools for manipulating neuronal activity 1,2. Four ChR families are currently known. Green algal 3–5 and cryptophyte 6 cation-conducting ChRs (CCRs), cryptophyte anion-conducting ChRs (ACRs) 7, and the MerMAID ChRs 8. Here we 25 report the discovery of a new family of phylogenetically distinct ChRs encoded by marine giant viruses and acquired from their unicellular green algal prasinophyte hosts. -
A Taxonomic Reassessment of Chlamydomonas Meslinii (Volvocales, Chlorophyceae) with a Description of Paludistella Gen.Nov
Phytotaxa 432 (1): 065–080 ISSN 1179-3155 (print edition) https://www.mapress.com/j/pt/ PHYTOTAXA Copyright © 2020 Magnolia Press Article ISSN 1179-3163 (online edition) https://doi.org/10.11646/phytotaxa.432.1.6 A taxonomic reassessment of Chlamydomonas meslinii (Volvocales, Chlorophyceae) with a description of Paludistella gen.nov. HANI SUSANTI1,6, MASAKI YOSHIDA2, TAKESHI NAKAYAMA2, TAKASHI NAKADA3,4 & MAKOTO M. WATANABE5 1Life Science Innovation, School of Integrative and Global Major, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki, 305-8577, Japan. 2Faculty of Life and Environmental Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba 305-8577, Japan. 3Institute for Advanced Biosciences, Keio University, Tsuruoka, Yamagata, 997-0052, Japan. 4Systems Biology Program, Graduate School of Media and Governance, Keio University, Fujisawa, Kanagawa, 252-8520, Japan. 5Algae Biomass Energy System Development and Research Center, University of Tsukuba. 6Research Center for Biotechnology, Indonesian Institute of Sciences, Jl. Raya Bogor KM 46 Cibinong West Java, Indonesia. Corresponding author: [email protected] Abstract Chlamydomonas (Volvocales, Chlorophyceae) is a large polyphyletic genus that includes numerous species that should be classified into independent genera. The present study aimed to examine the authentic strain of Chlamydomonas meslinii and related strains based on morphological and molecular data. All the strains possessed an asteroid chloroplast with a central pyrenoid and hemispherical papilla; however, they were different based on cell and stigmata shapes. Molecular phylogenetic analyses based on 18S rDNA, atpB, and psaB indicated that the strains represented a distinct subclade in the clade Chloromonadinia. The secondary structure of ITS-2 supported the separation of the strains into four species. -
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. -
Neoproterozoic Origin and Multiple Transitions to Macroscopic Growth in Green Seaweeds
bioRxiv preprint doi: https://doi.org/10.1101/668475; this version posted June 12, 2019. The copyright holder for this preprint (which was not certified by peer review) is the author/funder. All rights reserved. No reuse allowed without permission. Neoproterozoic origin and multiple transitions to macroscopic growth in green seaweeds Andrea Del Cortonaa,b,c,d,1, Christopher J. Jacksone, François Bucchinib,c, Michiel Van Belb,c, Sofie D’hondta, Pavel Škaloudf, Charles F. Delwicheg, Andrew H. Knollh, John A. Raveni,j,k, Heroen Verbruggene, Klaas Vandepoeleb,c,d,1,2, Olivier De Clercka,1,2 Frederik Leliaerta,l,1,2 aDepartment of Biology, Phycology Research Group, Ghent University, Krijgslaan 281, 9000 Ghent, Belgium bDepartment of Plant Biotechnology and Bioinformatics, Ghent University, Technologiepark 71, 9052 Zwijnaarde, Belgium cVIB Center for Plant Systems Biology, Technologiepark 71, 9052 Zwijnaarde, Belgium dBioinformatics Institute Ghent, Ghent University, Technologiepark 71, 9052 Zwijnaarde, Belgium eSchool of Biosciences, University of Melbourne, Melbourne, Victoria, Australia fDepartment of Botany, Faculty of Science, Charles University, Benátská 2, CZ-12800 Prague 2, Czech Republic gDepartment of Cell Biology and Molecular Genetics, University of Maryland, College Park, MD 20742, USA hDepartment of Organismic and Evolutionary Biology, Harvard University, Cambridge, Massachusetts, 02138, USA. iDivision of Plant Sciences, University of Dundee at the James Hutton Institute, Dundee, DD2 5DA, UK jSchool of Biological Sciences, University of Western Australia (M048), 35 Stirling Highway, WA 6009, Australia kClimate Change Cluster, University of Technology, Ultimo, NSW 2006, Australia lMeise Botanic Garden, Nieuwelaan 38, 1860 Meise, Belgium 1To whom correspondence may be addressed. Email [email protected], [email protected], [email protected] or [email protected]. -
The Symbiotic Green Algae, Oophila (Chlamydomonadales
University of Connecticut OpenCommons@UConn Master's Theses University of Connecticut Graduate School 12-16-2016 The yS mbiotic Green Algae, Oophila (Chlamydomonadales, Chlorophyceae): A Heterotrophic Growth Study and Taxonomic History Nikolaus Schultz University of Connecticut - Storrs, [email protected] Recommended Citation Schultz, Nikolaus, "The yS mbiotic Green Algae, Oophila (Chlamydomonadales, Chlorophyceae): A Heterotrophic Growth Study and Taxonomic History" (2016). Master's Theses. 1035. https://opencommons.uconn.edu/gs_theses/1035 This work is brought to you for free and open access by the University of Connecticut Graduate School at OpenCommons@UConn. It has been accepted for inclusion in Master's Theses by an authorized administrator of OpenCommons@UConn. For more information, please contact [email protected]. The Symbiotic Green Algae, Oophila (Chlamydomonadales, Chlorophyceae): A Heterotrophic Growth Study and Taxonomic History Nikolaus Eduard Schultz B.A., Trinity College, 2014 A Thesis Submitted in Partial Fulfillment of the Requirements for the Degree of Master of Science at the University of Connecticut 2016 Copyright by Nikolaus Eduard Schultz 2016 ii ACKNOWLEDGEMENTS This thesis was made possible through the guidance, teachings and support of numerous individuals in my life. First and foremost, Louise Lewis deserves recognition for her tremendous efforts in making this work possible. She has performed pioneering work on this algal system and is one of the preeminent phycologists of our time. She has spent hundreds of hours of her time mentoring and teaching me invaluable skills. For this and so much more, I am very appreciative and humbled to have worked with her. Thank you Louise! To my committee members, Kurt Schwenk and David Wagner, thank you for your mentorship and guidance. -
Abstract Resumen
KATIA ANCONA-CANCHÉ1, SILVIA LÓPEZ-ADRIÁN2, MARGARITA ESPINOSA-AGUILAR3, GLORIA GARDUÑO-SOLÓRZANO4, TANIT TOLEDANO-THOMPSON1, JOSÉ NARVÁEZ- ZAPATA5 AND RUBY VALDEZ-OJEDA1 Botanical Sciences 95 (3): 527-537, 2017 Abstract Background: Scenedesmaceae family exhibits great morphological variability. High phenotypic plasticity and the pres- DOI: 10.17129/botsci.1201 ence of cryptic species have resulted in taxonomic re-assignments of Scenedesmaceae members. Study strains: Strains CORE-1, CORE-2 and CORE-3 were characterized. Copyright: © 2017 Ancona-Canché Study site: Yucatan Peninsula et al. This is an open access article Methods: Morphological analyses were executed by optical and scanning electron microscopy. Phylogenetic relation- distributed under the terms of the ships were examined by ITS-2 and ITS1-5.8S-ITS2 rDNA regions. Creative Commons Attribution Li- cense, which permits unrestricted Results: Optical and scanning electron microscopy analyses indicated spherical to ellipsoidal cells and autospore for- use, distribution, and reproduction mation correspond to members of the family Scenedesmaceae, as well as observable pyrenoid starch plates. Detailed in any medium, provided the original morphology analysis indicated that CORE-1 had visible granulations dispersed on the cell wall, suggesting identity with author and source are credited. Verrucodesmus verrucosus. However CORE-1 did not show genetic relations with this species, and was instead clus- tered close to the genus Coelastrella. CORE-2 did not show any particular structure or ornamentation, but it did show genetic relations with Coelastrella with good support. CORE-3 showed meridional ribs from end to end, one of them forked and well pronounced, and orange cells in older cultures characteristic of Coelastrella specimens. -
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,