Vita: OR Anderson
Total Page：16
File Type：pdf, Size：1020Kb
Load more
Recommended publications
-
Protozoan Fauna of Freshwater Habitats in South Dum Dum Municipality, North 24 Parganas, West Bengal
Journal of Academia and Industrial Research (JAIR) Volume 3, Issue 3 August 2014 139 ISSN: 2278-5213 RESEARCH ARTICLE Protozoan Fauna of Freshwater Habitats in South Dum Dum Municipality, North 24 Parganas, West Bengal J. Chitra Protozoology Section, Lower Invertebrate Division, M Block, New Alipore, Kolkata-700053, India [email protected]; +91 98315 47265 ______________________________________________________________________________________________ Abstract Wetlands of South Dum Dum Municipality were focused to reveal the status of the planktonic protozoan fauna in detail. A total of 37 different sites were selected and plankton samples from these sites were collected. About 16 sp. of protozoa were identified from few localities from the present investigation. Eight species of rhizopoda belonged to 4 genera, 4 family (Pelomyxidae, Arcellidae, Centropyxidae and Difflugiidae) and 2 order (Pelobintida and Arcellinida), Four species of flagellate belongs to 2 genera, 1 family (Euglinidae) and 1 order (Euglenida), 4 species of ciliate belongs to 4 genera, 4 family (Colepidae, Vorticellidae, Euplotidae and Paramaeciidae), 2 order (Prorodontida and Peritrichida) and 2 suborder (Sporadotrichinia and Peniculina). Among 37 localities, protozoans were observed only in L2, L3, L8, L9, L12, L13, L15, L17, L18, L19, L21, L24, L26, L32, L33, L34 and L36 localities. Protozoan diversity and their abundance were noticed higher in L12, L18, L21, L26, L33 and L34 localities. Euglena viridis, E. acus, E. oxyuris and Phacus acumininata, Pelomyxa palustris, Vorticella companula were found to be higher in abundance and distribution. Keywords: South Dum Dum municipality, planktonic protozoan, Euglena viridis, abundance, distribution. Introduction Dumdum Park, Amarpalli, Telipukur, Nager Bazar, Protozoa are highly abundant in all aquatic habitats and Patipukur and Dum Dum were selected and the plankton greatly involved in food chain (Finlay, 1997). -
Molecular Phylogenetic Position of Hexacontium Pachydermum Jørgensen (Radiolaria)
Marine Micropaleontology 73 (2009) 129–134 Contents lists available at ScienceDirect Marine Micropaleontology journal homepage: www.elsevier.com/locate/marmicro Molecular phylogenetic position of Hexacontium pachydermum Jørgensen (Radiolaria) Tomoko Yuasa a,⁎, Jane K. Dolven b, Kjell R. Bjørklund b, Shigeki Mayama c, Osamu Takahashi a a Department of Astronomy and Earth Sciences, Tokyo Gakugei University, Koganei, Tokyo 184-8501, Japan b Natural History Museum, University of Oslo, P.O. Box 1172, Blindern, 0318 Oslo, Norway c Department of Biology, Tokyo Gakugei University, Koganei, Tokyo 184-8501, Japan article info abstract Article history: The taxonomic affiliation of Hexacontium pachydermum Jørgensen, specifically whether it belongs to the Received 9 April 2009 order Spumellarida or the order Entactinarida, is a subject of ongoing debate. In this study, we sequenced the Received in revised form 3 August 2009 18S rRNA gene of H. pachydermum and of three spherical spumellarians of Cladococcus viminalis Haeckel, Accepted 7 August 2009 Arachnosphaera myriacantha Haeckel, and Astrosphaera hexagonalis Haeckel. Our molecular phylogenetic analysis revealed that the spumellarian species of C. viminalis, A. myriacantha, and A. hexagonalis form a Keywords: monophyletic group. Moreover, this clade occupies a sister position to the clade comprising the spongodiscid Radiolaria fi Entactinarida spumellarians, coccodiscid spumellarians, and H. pachydermum. This nding is contrary to the results of Spumellarida morphological studies based on internal spicular morphology, placing H. pachydermum in the order Nassellarida Entactinarida, which had been considered to have a common ancestor shared with the nassellarians. 18S rRNA gene © 2009 Elsevier B.V. All rights reserved. Molecular phylogeny. 1. Introduction the order Entactinarida has an inner spicular system homologenous with that of the order Nassellarida. -
Protozoologica Special Issue: Protists in Soil Processes
Acta Protozool. (2012) 51: 201–208 http://www.eko.uj.edu.pl/ap ActA doi:10.4467/16890027AP.12.016.0762 Protozoologica Special issue: Protists in Soil Processes Review paper Ecology of Soil Eumycetozoans Steven L. STEPHENSON1 and Alan FEEST2 1Department of Biological Sciences, University of Arkansas, Fayetteville, Arkansas, USA; 2Institute of Advanced Studies, University of Bristol and Ecosulis ltd., Newton St Loe, Bath, United Kingdom Abstract. Eumycetozoans, commonly referred to as slime moulds, are common to abundant organisms in soils. Three groups of slime moulds (myxogastrids, dictyostelids and protostelids) are recognized, and the first two of these are among the most important bacterivores in the soil microhabitat. The purpose of this paper is first to provide a brief description of all three groups and then to review what is known about their distribution and ecology in soils. Key words: Amoebae, bacterivores, dictyostelids, myxogastrids, protostelids. INTRODUCTION that they are amoebozoans and not fungi (Bapteste et al. 2002, Yoon et al. 2008, Baudalf 2008). Three groups of slime moulds (myxogastrids, dic- One of the idiosyncratic branches of the eukary- tyostelids and protostelids) are recognized (Olive 1970, otic tree of life consists of an assemblage of amoe- 1975). Members of the three groups exhibit consider- boid protists referred to as the supergroup Amoebozoa able diversity in the type of aerial spore-bearing struc- (Fiore-Donno et al. 2010). The most diverse members tures produced, which can range from exceedingly of the Amoebozoa are the eumycetozoans, common- small examples (most protostelids) with only a single ly referred to as slime moulds. Since their discovery, spore to the very largest examples (certain myxogas- slime moulds have been variously classified as plants, trids) that contain many millions of spores. -
Protistology Mitochondrial Genomes of Amoebozoa
Protistology 13 (4), 179–191 (2019) Protistology Mitochondrial genomes of Amoebozoa Natalya Bondarenko1, Alexey Smirnov1, Elena Nassonova1,2, Anna Glotova1,2 and Anna Maria Fiore-Donno3 1 Department of Invertebrate Zoology, Faculty of Biology, Saint Petersburg State University, 199034 Saint Petersburg, Russia 2 Laboratory of Cytology of Unicellular Organisms, Institute of Cytology RAS, 194064 Saint Petersburg, Russia 3 University of Cologne, Institute of Zoology, Terrestrial Ecology, 50674 Cologne, Germany | Submitted November 28, 2019 | Accepted December 10, 2019 | Summary In this mini-review, we summarize the current knowledge on mitochondrial genomes of Amoebozoa. Amoebozoa is a major, early-diverging lineage of eukaryotes, containing at least 2,400 species. At present, 32 mitochondrial genomes belonging to 18 amoebozoan species are publicly available. A dearth of information is particularly obvious for two major amoebozoan clades, Variosea and Tubulinea, with just one mitochondrial genome sequenced for each. The main focus of this review is to summarize features such as mitochondrial gene content, mitochondrial genome size variation, and presence or absence of RNA editing, showing if they are unique or shared among amoebozoan lineages. In addition, we underline the potential of mitochondrial genomes for multigene phylogenetic reconstruction in Amoebozoa, where the relationships among lineages are not fully resolved yet. With the increasing application of next-generation sequencing techniques and reliable protocols, we advocate mitochondrial -
WO 2016/096923 Al 23 June 2016 (23.06.2016) W P O P C T
(12) INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property Organization International Bureau (10) International Publication Number (43) International Publication Date WO 2016/096923 Al 23 June 2016 (23.06.2016) W P O P C T (51) International Patent Classification: (81) Designated States (unless otherwise indicated, for every C12N 15/82 (2006.01) C12Q 1/68 (2006.01) kind of national protection available): AE, AG, AL, AM, C12N 15/113 (2010.01) AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DK, DM, (21) Number: International Application DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, PCT/EP20 15/079893 HN, HR, HU, ID, IL, IN, IR, IS, JP, KE, KG, KN, KP, KR, (22) International Filing Date: KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, 15 December 2015 (15. 12.2015) MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, (25) Filing Language: English SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, (26) Publication Language: English TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW. (30) Priority Data: (84) Designated States (unless otherwise indicated, for every 14307040.7 15 December 2014 (15. 12.2014) EP kind of regional protection available): ARIPO (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, (71) Applicants: PARIS SCIENCES ET LETTRES - TZ, UG, ZM, ZW), Eurasian (AM, AZ, BY, KG, KZ, RU, QUARTIER LATIN [FR/FR]; 62bis, rue Gay-Lussac, TJ, TM), European (AL, AT, BE, BG, CH, CY, CZ, DE, 75005 Paris (FR). -
Number of Living Species in Australia and the World
Numbers of Living Species in Australia and the World 2nd edition Arthur D. Chapman Australian Biodiversity Information Services australia’s nature Toowoomba, Australia there is more still to be discovered… Report for the Australian Biological Resources Study Canberra, Australia September 2009 CONTENTS Foreword 1 Insecta (insects) 23 Plants 43 Viruses 59 Arachnida Magnoliophyta (flowering plants) 43 Protoctista (mainly Introduction 2 (spiders, scorpions, etc) 26 Gymnosperms (Coniferophyta, Protozoa—others included Executive Summary 6 Pycnogonida (sea spiders) 28 Cycadophyta, Gnetophyta under fungi, algae, Myriapoda and Ginkgophyta) 45 Chromista, etc) 60 Detailed discussion by Group 12 (millipedes, centipedes) 29 Ferns and Allies 46 Chordates 13 Acknowledgements 63 Crustacea (crabs, lobsters, etc) 31 Bryophyta Mammalia (mammals) 13 Onychophora (velvet worms) 32 (mosses, liverworts, hornworts) 47 References 66 Aves (birds) 14 Hexapoda (proturans, springtails) 33 Plant Algae (including green Reptilia (reptiles) 15 Mollusca (molluscs, shellfish) 34 algae, red algae, glaucophytes) 49 Amphibia (frogs, etc) 16 Annelida (segmented worms) 35 Fungi 51 Pisces (fishes including Nematoda Fungi (excluding taxa Chondrichthyes and (nematodes, roundworms) 36 treated under Chromista Osteichthyes) 17 and Protoctista) 51 Acanthocephala Agnatha (hagfish, (thorny-headed worms) 37 Lichen-forming fungi 53 lampreys, slime eels) 18 Platyhelminthes (flat worms) 38 Others 54 Cephalochordata (lancelets) 19 Cnidaria (jellyfish, Prokaryota (Bacteria Tunicata or Urochordata sea anenomes, corals) 39 [Monera] of previous report) 54 (sea squirts, doliolids, salps) 20 Porifera (sponges) 40 Cyanophyta (Cyanobacteria) 55 Invertebrates 21 Other Invertebrates 41 Chromista (including some Hemichordata (hemichordates) 21 species previously included Echinodermata (starfish, under either algae or fungi) 56 sea cucumbers, etc) 22 FOREWORD In Australia and around the world, biodiversity is under huge Harnessing core science and knowledge bases, like and growing pressure. -
JJB 079 255 261.Pdf
植物研究雑誌 J. J. Jpn. Bo t. 79:255-261 79:255-261 (2004) Phylogenetic Phylogenetic Analysis of the Tetrasporalean Genus Asterococcus Asterococcus (Chlorophyceae) sased on 18S 18S Ribosomal RNA Gene Sequences Atsushi Atsushi NAKAZA WA and Hisayoshi NOZAKI Department Department of Biological Sciences ，Graduate School of Science ，University of Tokyo ， Hongo Hongo 7-3-1 ，Bunkyo-ku ，Tokyo ，113 ・0033 JAPAN (Received (Received on October 30 ，2003) Nucleotide Nucleotide sequences (1642 bp) from 18S ribosomal RNA genes were analyzed for 100 100 strains of the clockwise (CW) group of Chlorophyceae to deduce the phylogenetic position position of the immotile colonial genus Asterococcus Scherffel ， which is classified in the Palmellopsidaceae Palmellopsidaceae of Tetrasporales. We found that the genus Asterococcus and two uni- cellular ， volvocalean genera ， Lobochlamys Proschold & al. and Oogamochlamys Proschold Proschold & al.， formed a robust monophyletic group ， which was separated from two te 位asporalean clades ， one composed of Tetraspora Link and Paulschulzia Sk 吋a and the other other containing the other palme l1 0psidacean genus Chlamydocaps αFot t. Therefore ， the Tetrasporales Tetrasporales in the CW group is clearly polyphyletic and taxonomic revision of the order order and the Palmellopsidaceae is needed. Key words: 18S rRNA gene ，Asterococcus ，Palmellopsidaceae ，phylogeny ，Tetraspor- ales. ales. Asterococcus Asterococcus Scherffel (1908) is a colo- Recently ， Ettl and Gartner (1 988) included nial nial green algal genus that is characterized Asterococcus in the family Palmello- by an asteroid chloroplast in the cell and psidaceae ， because cells of this genus have swollen swollen gelatinous layers surrounding the contractile vacuoles and lack pseudoflagella immotile immotile colony (e. g. -
First Application of PDMPO to Examine Silicification in Polycystine Radiolaria
Plankton Benthos Res 4(3): 89–94, 2009 Plankton & Benthos Research © The Plankton Society of Japan First application of PDMPO to examine silicification in polycystine Radiolaria KAORU OGANE1,*, AKIHIRO TUJI2, NORITOSHI SUZUKI1, TOSHIYUKI KURIHARA3 & ATSUSHI MATSUOKA4 1 Institute of Geology and Paleontology, Graduate School of Science, Tohoku University, Sendai, 980–8578, Japan 2 Department of Botany, National Museum of Nature and Science, Tsukuba, 305–0005, Japan 3 Graduate School of Science and Technology, Niigata University, Niigata 950–2181, Japan 4 Department of Geology, Faculty of Science, Niigata University, Niigata 950–2181, Japan Received 4 February 2009; Accepted 10 April 2009 Abstract: 2-(4-pyridyl)-5-[(4-(2-dimethylaminoethylaminocarbamoyl)methoxy)-phenyl] oxazole (PDMPO) is a fluo- rescent compound that accumulates in acidic cell compartments. PDMPO is accumulated with silica under acidic con- ditions, and the newly developed silica skeletons show green fluorescent light. This study is the first to use PDMPO in polycystine radiolarians, which are unicellular planktonic protists. We tested Acanthodesmia sp., Rhizosphaera trigo- nacantha, and Spirocyrtis scalaris for emission of green fluorescence. Entire skeletons of Acanthodesmia sp. and Sr. scalaris emitted green fluorescent light, whereas only the outermost shell and radial spines of Rz. trigonacantha showed fluorescence. Two additional species, Spongaster tetras tetras and Rhopalastrum elegans did not show fluorescence. Green fluorescence of the entire skeleton is more like the “skeletal thickening growth” defined by silica deposition throughout the surface of the existing skeleton. The brightness of the fluorescence varied with each cell. This difference in fluorescence may reflect the rate of growth in these cells. Green fluorescence in PDMPO-treated polycystines sug- gests the presence of similar metabolic systems with controlled pH. -
Lobo MTMPS (2019) First Record of Tetraspora Gelatinosa (Vaucher) Desvaux (Tetrasporales, Chlorophyceae) in the State of Goiás, Central-Western Brazil
15 1 NOTES ON GEOGRAPHIC DISTRIBUTION Check List 15 (1): 143–147 https://doi.org/10.15560/15.1.143 First record of Tetraspora gelatinosa Link ex Desvaux (Tetrasporales, Chlorophyceae) in the state of Goiás, Central-Western Brazil Weliton José da Silva1, Ina de Souza Nogueira2, Maria Tereza Morais Pereira Souza Lobo3 1 Universidade Estadual de Londrina, Centro de Ciências Biológicas, Departamento de Biologia Animal e Vegetal, Laboratório de Microalgas Continentais, Rodovia Celso Garcia Cid, Pr 445 Km 380, CEP 86057-970, Londrina, PR, Brazil. 2 Universidade Federal de Goiás, Instituto de Ciências Biológicas, Departamento de Botânica, Laboratório de Análise de Gerenciamento Ambiental de Recursos Hídricos, Alameda Palmeiras Quadra I - Lote i2, CEP 74690-900, Goiânia, GO, Brazil. 3 Universidade Federal de Goiás, Programa de Pós-graduação em Ciências Ambientais, Laboratório de Análise de Gerenciamento Ambiental de Recursos Hídricos, Alameda Palmeiras Quadra I - Lote i2, CEP 74690-900, Goiânia, GO, Brazil. Corresponding author: Weliton José da Silva, [email protected] Abstract Tetraspora gelatinosa is rare and has been recorded only in 3 Brazilian states since the 2000s. The flora of the state of Goiás is incipiently known, but there is no record of Tetraspora thus far. We record the occurrence of T. gelatinosa in Goiás and characterize this species’ morphology and ecological preferences. Specimens were found in the Samambaia Reservoir, Goiânia, Goiás. Physical and chemical characteristics of the water were measured. Where T. gelatinosa was found, the water was shallow and characterized as ultraoligotrophic. These conditions agree with those reported for other environments in Brazil. Key words Algae, Meia Ponte river basin, new record, rare species, ultraoligotrophic. -
Protocols for Monitoring Harmful Algal Blooms for Sustainable Aquaculture and Coastal Fisheries in Chile (Supplement Data)
Protocols for monitoring Harmful Algal Blooms for sustainable aquaculture and coastal fisheries in Chile (Supplement data) Provided by Kyoko Yarimizu, et al. Table S1. Phytoplankton Naming Dictionary: This dictionary was constructed from the species observed in Chilean coast water in the past combined with the IOC list. Each name was verified with the list provided by IFOP and online dictionaries, AlgaeBase (https://www.algaebase.org/) and WoRMS (http://www.marinespecies.org/). The list is subjected to be updated. Phylum Class Order Family Genus Species Ochrophyta Bacillariophyceae Achnanthales Achnanthaceae Achnanthes Achnanthes longipes Bacillariophyta Coscinodiscophyceae Coscinodiscales Heliopeltaceae Actinoptychus Actinoptychus spp. Dinoflagellata Dinophyceae Gymnodiniales Gymnodiniaceae Akashiwo Akashiwo sanguinea Dinoflagellata Dinophyceae Gymnodiniales Gymnodiniaceae Amphidinium Amphidinium spp. Ochrophyta Bacillariophyceae Naviculales Amphipleuraceae Amphiprora Amphiprora spp. Bacillariophyta Bacillariophyceae Thalassiophysales Catenulaceae Amphora Amphora spp. Cyanobacteria Cyanophyceae Nostocales Aphanizomenonaceae Anabaenopsis Anabaenopsis milleri Cyanobacteria Cyanophyceae Oscillatoriales Coleofasciculaceae Anagnostidinema Anagnostidinema amphibium Anagnostidinema Cyanobacteria Cyanophyceae Oscillatoriales Coleofasciculaceae Anagnostidinema lemmermannii Cyanobacteria Cyanophyceae Oscillatoriales Microcoleaceae Annamia Annamia toxica Cyanobacteria Cyanophyceae Nostocales Aphanizomenonaceae Aphanizomenon Aphanizomenon flos-aquae -
Rhizaria, Cercozoa)
Protist, Vol. 166, 363–373, July 2015 http://www.elsevier.de/protis Published online date 28 May 2015 ORIGINAL PAPER Molecular Phylogeny of the Widely Distributed Marine Protists, Phaeodaria (Rhizaria, Cercozoa) a,1 a a b Yasuhide Nakamura , Ichiro Imai , Atsushi Yamaguchi , Akihiro Tuji , c d Fabrice Not , and Noritoshi Suzuki a Plankton Laboratory, Graduate School of Fisheries Sciences, Hokkaido University, Hakodate, Hokkaido 041–8611, Japan b Department of Botany, National Museum of Nature and Science, Tsukuba 305–0005, Japan c CNRS, UMR 7144 & Université Pierre et Marie Curie, Station Biologique de Roscoff, Equipe EPPO - Evolution du Plancton et PaléoOcéans, Place Georges Teissier, 29682 Roscoff, France d Institute of Geology and Paleontology, Graduate School of Science, Tohoku University, Sendai 980–8578, Japan Submitted January 1, 2015; Accepted May 19, 2015 Monitoring Editor: David Moreira Phaeodarians are a group of widely distributed marine cercozoans. These plankton organisms can exhibit a large biomass in the environment and are supposed to play an important role in marine ecosystems and in material cycles in the ocean. Accurate knowledge of phaeodarian classification is thus necessary to better understand marine biology, however, phylogenetic information on Phaeodaria is limited. The present study analyzed 18S rDNA sequences encompassing all existing phaeodarian orders, to clarify their phylogenetic relationships and improve their taxonomic classification. The mono- phyly of Phaeodaria was confirmed and strongly supported by phylogenetic analysis with a larger data set than in previous studies. The phaeodarian clade contained 11 subclades which generally did not correspond to the families and orders of the current classification system. Two families (Challengeri- idae and Aulosphaeridae) and two orders (Phaeogromida and Phaeocalpida) are possibly polyphyletic or paraphyletic, and consequently the classification needs to be revised at both the family and order levels by integrative taxonomy approaches. -
Differential Gene Expression Analysis and Cytological Evidence Reveal a Sexual Stage of an Amoeba with Multiparental Cellular and Nuclear Fusion
PLOS ONE RESEARCH ARTICLE Differential gene expression analysis and cytological evidence reveal a sexual stage of an amoeba with multiparental cellular and nuclear fusion ☯ ☯ Yonas I. TekleID *, Fang Wang , Alireza Heidari, Alanna Johnson Stewart Department of Biology, Spelman College, Atlanta, Georgia, United States of America a1111111111 ☯ These authors contributed equally to this work. a1111111111 * [email protected] a1111111111 a1111111111 a1111111111 Abstract Sex is a hallmark of eukaryotes but its evolution in microbial eukaryotes is poorly elucidated. Recent genomic studies revealed microbial eukaryotes possess a genetic toolkit necessary OPEN ACCESS for sexual reproduction. However, the mechanism of sexual development in a majority of Citation: Tekle YI, Wang F, Heidari A, Stewart AJ microbial eukaryotes including amoebozoans is poorly characterized. The major hurdle in (2020) Differential gene expression analysis and studying sex in microbial eukaryotes is a lack of observational evidence, primarily due to its cytological evidence reveal a sexual stage of an cryptic nature. In this study, we used a tractable fusing amoeba, Cochliopodium, to investi- amoeba with multiparental cellular and nuclear fusion. PLoS ONE 15(11): e0235725. https://doi. gate sexual development using stage-specific Differential Gene Expression (DGE) and org/10.1371/journal.pone.0235725 cytological analyses. Both DGE and cytological results showed that most of the meiosis and Editor: Arthur J. Lustig, Tulane University Health sex-related genes are upregulated in Cochliopodium undergoing fusion in laboratory culture. Sciences Center, UNITED STATES Relative gene ontology (GO) category representations in unfused and fused cells revealed Received: June 19, 2020 a functional skew of the fused transcriptome toward DNA metabolism, nucleus and ligases that are suggestive of a commitment to sexual development.