DOCSLIB.ORG

Cyanobacterial Toxins in Freshwater Ecosystems

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
Cyanobacterial Toxins in Freshwater Ecosystems Diversity, impact and fate of cyanobacterial toxins in freshwater ecosystems Dissertation submitted for the degree of Doctor of Natural Sciences (Dr. rer. nat.) Presented by SHIVA SHAMS At the Faculty of Sciences Department of Biology Konstanz, 2015 2 ____________________________________________________________________ “Nothing great in the world has been accomplished without passion.” – Georg Wilhelm Friedrich Hegel 3 I. Publications and Honours A. Publications Cerasino, L., Shams, S., Boscaini A., Salmaso, N., 2015. Inter-annual variability of the microcystins pool in the oligo-mesotrophic Lake Garda (Italy). In Preparation. Shams, S., Capelli, C., Cerasino, L., Ballot, A., Dietrich, D.R., Sivonen, K., Salmaso, N., 2015. Anatoxin-a producing Tychonema (cyanobacteria) in European water bodies. Water Research 69, 68-79. Shams, S., Cerasino, L., Salmaso, N., Dietrich, D.R., 2014. Experimental models of microcystin accumulation in Daphnia magna grazing on Planktothrix rubescens: Implications for water management. Aquatic Toxicology 148, 9-15. Salmaso, N., Copetti, D., Cerasino, L., Shams, S., Capelli, C., Boscaini, A., Valsecchi, L., Pozzoni, F., Guzzell, L., 2014.Variability of microcystin cell quota in metapopulations of Planktothrix rubescens: causes and implications for water management. Toxicon 90, 82-96. Jiang, L., Eriksson, J., Lage, S., Jonasson, S., Shams, S., Mehine, M., Ilag, L. Rasmussen, U., 2014. Diatoms: A Novel Source for the Neurotoxin BMAA in Aquatic Environments. PLoS One 9(1), e84578. Salmaso, N., Boscaini, A., Shams, S., Cerasino, L., 2013. Strict coupling between the development of Planktothrix rubescens and microcystin content in two nearby lakes south of the Alps (lakes Garda and Ledro). Annales de Limnologie - International Journal of Limnology 49 (4), 309- 318. 4 B. Conference talks July 1-5, 2013, Münster, Germany Shams, S., Cerasino, L., Salmaso, N., Dietrich, D.R. Experimental models of microcystin accumulation in Daphnia magna grazing on Planktothrix rubescens: potential for microcystin transfer through the food web. SEFS 8 (8th Symposium for European Freshwater Science). October 29 - November 2, 2012, Changwon, South Korea Shams, S., Cerasino, L., Salmaso, N., Dietrich, D.R. Diversity and Seasonality Of cyanotoxins In Lake Garda (Italy): Potential for Hepatotoxic Microcystins Transfer through the Food Web. 15th International Conference on Harmful Algae, Changwon, Republic of Korea. November 28-30, 2011, Vienna, Austria Shams, S., Cerasino, L., Salmaso, N. Diversity and seasonality of cyanotoxins in Lake Garda. 4th EULAKE meeting and science day, University of Natural Resources and Life Sciences. August 21-28, 2011, Trento, Italy Shams, S, Milan, M., Ranjan, J., Tolotti, M., Cerasino, L., Boscaini, A., Salmaso, N. Ecological changes of Central European Lakes within the EU Project EULAKES: nuisance cyanobacteria and cyanotoxins, and their impact on aquatic ecosystems and water quality at different temporal scales. 16th Workshop of the International Association of Phytoplankton Taxonomy and Ecology (IAP) held in San Michele all'Adige, Trento, Italy. C. Posters October 8-12, 2012, Konstanz, Germany Cerasino, L., Shams, S., Salmaso, N., Dietrich, D.R. Toxic potential of cyanobacteria in oligo- mesotrophic lakes: the case of Lake Garda (Italy). 3rd European Large Lakes Symposium University of Konstanz. June 26-July 1st, 2011, Girona, Spain Shams, S., Cerasino, L., Ranjan, J., Salmaso, N. Cyanotoxins and their impact on water quality in Central Europe lakes. The 7th Symposium of the European Freshwater Science, Girona, Spain. 5 D. Other conference contributions February 22-27, 2015, Granada, Spain Capelli, C., Shams, S., Cerasino, L., Cavalieri, D., Salmaso, N. Toxic cyanobacteria in the deep lakes south of the alps: A molecular assessment on cyanotoxin producing genotypes. Aquatic Sciences Meeting (ASLO). February 22-27, 2015, Granada, Spain Cerasino, L., Shams S., Boscaini A., Salmaso, N. Evolution of the toxin diversity in the oligo- mesotrophic environment of Lake Garda (Italy). Aquatic Sciences Meeting (ASLO). February 22-27, 2015, Granada, Spain Salmaso, N., Capelli, C., Shams, C., Boscaini, A., Tolotti, M., Cerasino, L. Invasion of Dolichospermum lemmermannii (cyanobacteria) to the deep lakes south of the alps: an unusual colonization from north to south? Aquatic Sciences Meeting (ASLO). September 1-5, 2014, Perugia, Italy Capelli, C., Shams, S., Cerasino, L., Cavalieri, D., Salmaso, N. Toxic cyanobacteria in lake Garda: a molecular assessment on cyanotoxin producing genotypes. 15th World Lake Conference (WLC15). September 1-5, 2014, Perugia, Italy Cerasino, L., Shams, S., Boscaini, A., Salmaso, N. Toxin dynamics inside the resident cyanobacterial community of Lake Garda (Italy). 15th World Lake Conference (WLC15). September 1-5, 2014, Perugia, Italy Salmaso, N., Tolotti, M., Milan, M., Shams, S., Capelli, C., Boscaini, A., Pareeth, S., Neteler, M., Cerasino, L. Impact of anthropogenic pressures and long-term climate changes on the trophic state of Lake Garda (Northern Italy): a multidisciplinary assessment. 15th World Lake Conference (WLC15). September 15-17, 2014, Ferrara, Italy Salmaso, N., Shams, S., Capelli, C., Boscaini, A., and Cerasino, L. From species to strains: production of toxins in populations of cyanobacteria, and implications for water management. Dipartimento di Scienze della Vita e Biotecnologie (SVeB), Università degli Studi di Ferrara, Italy. May 30, 2013, Gardone Riviera, Brescia, Italy Salmaso, N., Shams, S., Cerasino, L. Development of cyanobacteria and production of cyanotoxins in Lake Garda: statistical models and predictive power. Workshop of Quality and sustainable use of water resources in Lake Garda and in other large water bodies in Europe: 6 experiences within the project EULAKES. May 30, 2013, Gardone Riviera, Brescia, Italy Cerasino, L., Shams, S., Salmaso, N. Cyanotoxins in Lake Garda? The critical evaluation of chemodiversity. Workshop of Quality and sustainable use of water resources in Lake Garda and in other large water bodies in Europe: experiences within the project EULAKES. April 7-10, 2014, Palermo, Italy Capelli, C., Shams, S., Cerasino, L., Cavalieri, D., Papini, A., Salmaso, N. Toxin-producing cyanobacteria in the large lakes south of the Alps: detection of new producers and molecular identification methods. 10th PhD students meeting in Ecology and Aquatic Systems. April 7-12, 2013, Vienna, Austria Cerasino, L., Shams, S., Salmaso, N., Dietrich, D.R. The impact of toxic cyanobacteria on the water quality in the Deep Subalpine Lakes (DSL). European Geosciences Union General Assembly. June 26-July 1, 2011, Girona, Spain Ranjan, J., Shams, S., Cerasino, L., Salmaso, N. Ecological changes of central European lakes within the EU project EULAKES: nuisance cyanobacteria and impact on the aquatic ecosystems. The 7th Symposium of the European Freshwater Science. E. Research awards and scholarship March-May 2013 COST action award, Short Term Scientific Missions (STSMs) for learning new molecular methods at the laboratory of Prof. Kaarina Sivonen, Microbiology department, Helsinki University, Finland. October 29-November 2, 2012 Student Travel award for participation in 15th International Conference on Harmful Algae held in Changwon, Republic of Korea. January 2011-January 2015 PhD scholarship from Fondazione Edmund Mach, San Michele All'adige Trento, Italy. 7 II. Deusche Zusammenfassung Massive Blaualgen (Cyanobakterien)-blüten werden weltweit und zunehmend in Oberflächengewässern registriert. Diese Cyanobacterienblüten sind vielfach toxisch aufgrund der Präsenz von hepato- und neurotoxinen. Mehrere Vergiftungsfälle mit Menschen und Nutztieren aber auch Wildtieren sind auf diese toxischen Cyanobakterienblüten zurückzuführen. Entsprechend müssen Oberflächengewässer routinemässig auf das Vorkommen von Cyanobakterienblüten und möglicher Toxien untersucht werden. Im ersten Teil dieser Doktorarbeit wurden LC-MS Methoden zur Identifizierung und Quantifizierung von Cyanobakterientoxinen im Lago di Garda etabliert und optimiert. Anatoxin-a (ATX) und Microcystine (MCs) konnten im Lago di Garda regelmässig nachgewiesen werden, jedoch zu unterschiedlichen Jahreszeiten. ATX dominierte primär im Frühsommer während MCs typischerweise erst im Spätsommer/Spätherbst in höheren Konzentrationen nachzuweisen war. Obwohl 5 verschiedene MCs nachgewiesen werden konnten, dominierte das MC-RRdm Kongener in allen analysierten Proben. In einem weiteren Kapitel dieser Doktorarbeit wurden die kinetischen Aspekte des trophischen Transfers von MC in Planktothrix rubescens zum Wasserfloh Daphnia magna untersucht. Modelierungen der MC Akkumulation in der Wasserfloh Daphnia magna untersucht zeigetn, dass die MC Akkumulation prinzipiell von der ursprünglichen MC Konzentration und der Expositionsdauer der Daphnien abhängt. Innerhalb der ersten 24 h der Exposition ist die MC Akkumulation in der Wasserfloh, Daphnia magna, nahezu linear, unabhängig davon wie hoch die Dichte der Planktothrix rubescens und die MC Konzentration war. Nach 48h Exposition, verlief die MC Akkumulation in der Wasserfloh Daphnia magna exponentiell. Im letzten Teil dieser Doktorarbeit wurde ein polyphasischer Ansatz gewählt um die Oscillatoriales zu identifizieren, welche für die Synthese von ATX im Lago di Garda verantwortlich ist. Dieser Ansatz beinhaltete mikroskopische, molkelar-biologische und analytische Methoden. Aufgrund dieser Analysen konnte Tychonema bourrellyi als neuer ATX Produzent und auch die entsprechenden
Load more

Recommended publications
  • 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
    [Show full text]
  • Cyanobacterial Diversity Held in Microbial Biological Resource Centers As a Biotechnological Asset: the Case Study of the Newly Established LEGE Culture Collection
    Journal of Applied Phycology (2018) 30:1437–1451 https://doi.org/10.1007/s10811-017-1369-y Cyanobacterial diversity held in microbial biological resource centers as a biotechnological asset: the case study of the newly established LEGE culture collection Vitor Ramos1,2 & João Morais1 & Raquel Castelo-Branco1 & Ângela Pinheiro1 & Joana Martins1 & Ana Regueiras1,2 & Ana L. Pereira1 & Viviana R. Lopes1,3 & Bárbara Frazão1,4 & Dina Gomes1,5 & Cristiana Moreira1 & Maria Sofia Costa1 & Sébastien Brûle6 & Silvia Faustino7 & Rosário Martins1,8 & Martin Saker1,9 & Joana Osswald1 & Pedro N. Leão1 & Vitor M. Vasconcelos1,2 Received: 15 March 2017 /Revised and accepted: 7 December 2017 /Published online: 6 January 2018 # The Author(s) 2018. This article is an open access publication Abstract Cyanobacteria are a well-known source of bioproducts which renders culturable strains a valuable resource for biotechnology purposes. We describe here the establishment of a cyanobacterial culture collection (CC) and present the first version of the strain catalog and its online database (http://lege.ciimar.up.pt/). The LEGE CC holds 386 strains, mainly collected in coastal (48%), estuarine (11%), and fresh (34%) water bodies, for the most part from Portugal (84%). By following the most recent taxonomic classification, LEGE CC strains were classified into at least 46 genera from six orders (41% belong to the Synechococcales), several of them are unique among the phylogenetic diversity of the cyanobacteria. For all strains, primary data were obtained and secondary data were surveyed and reviewed, which can be reached through the strain sheets either in the catalog or in the online database. An overview on the notable biodiversity of LEGE CC strains is showcased, including a searchable phylogenetic tree and images for all strains.
    [Show full text]
  • Diversity and Taxonomic Structure of Cyanoprokaryota in the Azerbaijani Sector of the Caspian Sea
    Plant & Fungal Research (2019) 2(2): 2-10 © The Institute of Botany, ANAS, Baku, AZ1004, Azerbaijan http://dx.doi.org/10.29228/plantfungalres.18 December 2019 Diversity and taxonomic structure of Cyanoprokaryota in the Azerbaijani sector of the Caspian Sea Маya A. Nuriyeva species diversity of Cyanoprokaryota Azerbaijani sector Institute of Botany, Azerbaijan National Academy of Sciences, of the Caspian Sea. In total, 93 species of cyanophytes Badamdar 40, Baku, AZ1004, Azerbaijan belonging to class Cyanophyceae, three subclasses, five Abstract: A comprehensive study and preservation of orders, 20 families and 44 genera are known for the the plant world is one of the main challenges facing bo- studied area. Orders Synechococcales (7 families, 15 tanists. Cyanoprokaryota (Cyanophyta, Cyanobacteria) genera and 27 species) and Oscillatoriales (3 families, also known as blue-green algae is the oldest group of 13 genera and 35 species) lead in taxonomic and species prokaryote organisms involved in photosynthesis ha- diversity; together they incorporate 66.7% of the species ving a great impact on the global ecosystem. Three bil- revealed. Leading families are Oscillatoriaceae (21.8%) lion years ago their photosynthesis caused the “oxygen and Microcoleaceae (12.9%). Genera Phormidium revolution” changing both the Earth atmosphere and Kützing ex Gomont (9 species), Oscillatoria Vaucher its biota. This group consists of heterogeneous pool of ex Gomont and Chroococcus Nägeli (6 species each), photosynthetic prokaryotes and covers 2000 species be- Leptolyngbya Anagnostidis & Komárek, Lyngbya C. longing to several hundred genera represented by uni- Agardh ex Gomont, Merismopedia Meyen (5 species cellular, colonial, filamentous or branched-filamentous each) and Spirulina Turpin ex Gomont (4) lead in forms.
    [Show full text]
  • (Cyanobacterial Genera) 2014, Using a Polyphasic Approach
    Preslia 86: 295–335, 2014 295 Taxonomic classification of cyanoprokaryotes (cyanobacterial genera) 2014, using a polyphasic approach Taxonomické hodnocení cyanoprokaryot (cyanobakteriální rody) v roce 2014 podle polyfázického přístupu Jiří K o m á r e k1,2,JanKaštovský2, Jan M a r e š1,2 & Jeffrey R. J o h a n s e n2,3 1Institute of Botany, Academy of Sciences of the Czech Republic, Dukelská 135, CZ-37982 Třeboň, Czech Republic, e-mail: [email protected]; 2Department of Botany, Faculty of Science, University of South Bohemia, Branišovská 31, CZ-370 05 České Budějovice, Czech Republic; 3Department of Biology, John Carroll University, University Heights, Cleveland, OH 44118, USA Komárek J., Kaštovský J., Mareš J. & Johansen J. R. (2014): Taxonomic classification of cyanoprokaryotes (cyanobacterial genera) 2014, using a polyphasic approach. – Preslia 86: 295–335. The whole classification of cyanobacteria (species, genera, families, orders) has undergone exten- sive restructuring and revision in recent years with the advent of phylogenetic analyses based on molecular sequence data. Several recent revisionary and monographic works initiated a revision and it is anticipated there will be further changes in the future. However, with the completion of the monographic series on the Cyanobacteria in Süsswasserflora von Mitteleuropa, and the recent flurry of taxonomic papers describing new genera, it seems expedient that a summary of the modern taxonomic system for cyanobacteria should be published. In this review, we present the status of all currently used families of cyanobacteria, review the results of molecular taxonomic studies, descriptions and characteristics of new orders and new families and the elevation of a few subfamilies to family level.
    [Show full text]
  • Especies De Algas De Ríos De Nuevo León, México: Nuevos Registros Para El Estado
    Núm. 46: 1-25 Julio 2018 ISSN electrónico: 2395-9525 Polibotánica ISSN electrónico: 2395-9525 [email protected] Instituto Politécnico Nacional México http:www.polibotanica.mx ESPECIES DE ALGAS DE RÍOS DE NUEVO LEÓN, MÉXICO: NUEVOS REGISTROS PARA EL ESTADO ALGAE SPECIES FROM NUEVO LEON, MEXICO: NEW RECORDS FOR THE STATE Aguirre-Cavazos, D.E.; S. Moreno-Limón, y S.M. Salcedo-Martínez ESPECIES DE ALGAS DE RÍOS DE NUEVO LEÓN, MÉXICO: NUEVOS REGISTROS PARA EL ESTADO. ALGAE SPECIES FROM NUEVO LEON, MEXICO: NEW RECORDS FOR THE STATE. Núm. 46: 1-25 México. Julio 2018 Instituto Politécnico Nacional DOI: 10.18387/polibotanica.46.1 1 Núm. 46: 1-25 Julio 2018 ISSN electrónico: 2395-9525 ESPECIES DE ALGAS DE RÍOS DE NUEVO LEÓN, MÉXICO: NUEVOS REGISTROS PARA EL ESTADO ALGAE SPECIES FROM NUEVO LEON, MEXICO: NEW RECORDS FOR THE STATE D.E. Aguirre-Cavazos Herbario, Facultad de Ciencias Biológicas, Aguirre-Cavazos, D.E.; S. Moreno-Limón, y Universidad Autónoma de Nuevo León. S.M. Salcedo Martínez S. Moreno-Limón Laboratorio de Fisiología Vegetal, Facultad de Ciencias Biológicas, ESPECIES DE ALGAS DE RÍOS DE NUEVO LEÓN, Universidad Autónoma de Nuevo León. MÉXICO: NUEVOS REGISTROS PARA EL S.M. Salcedo-Martínez/ [email protected] ESTADO Herbario, Facultad de Ciencias Biológicas, Universidad Autónoma de Nuevo León. ALGAE SPECIES FROM NUEVO LEON, MEXICO: NEW RECORDS FOR THE STATE RESUMEN: El conocimiento de las algas continentales de México es aún deficiente. Los registros taxonómicos suman actualmente 3 256 especies, pero muchos de ellos carecen de una descripción, una ilustración o de ambas, además de información ecológica o de su potencial económico.
    [Show full text]
  • Short Communication: Assessing Phytoplankton Species Structure in Trophically Different Water Bodies of South Ural, Russia
    BIODIVERSITAS ISSN: 1412-033X Volume 22, Number 8, August 2021 E-ISSN: 2085-4722 Pages: 3530-3538 DOI: 10.13057/biodiv/d220853 Short Communication: Assessing phytoplankton species structure in trophically different water bodies of South Ural, Russia ANASTASIYA KOSTRYUKOVA1,, IRINA MASHKOVA1, SERGEY BELOV1, ELENA SHCHELKANOVA2, VIKTOR TROFIMENKO3 1Department of Chemistry, Institute of Natural Sciences and Mathematics, South Ural State University. 76 Lenin Prospect, 454080 Chelyabinsk, Russia. Tel./Fax. +7-351-2679517, email: [email protected] 2Institute of Linguistics and International Communications, South Ural State University. 76 Lenin Prospect, 454080 Chelyabinsk, Russia 3Department of Philosophy and Culturology, South Ural State Humanitarian Pedagogical University. 69 Lenin Prospect, 454080 Chelyabinsk, Russia Manuscript received: 6 April 2021. Revision accepted: 29 July 2021. Abstract. Kostryukova A, Mashkova I, Belov S, Shchelkanova E, Trofimenko V. 2021. Short Communication: Assessing phytoplankton species structure in trophically different water bodies of South Ural, Russia. Biodiversitas 22: 3530-3538. The study aims to analyze the species structure of the phytoplankton communities of four water bodies in South Ural (Lakes-Turgoyak, Uvildy, Ilmenskoe and Shershnevskoe reservoir). These water bodies are characterized by different trophic states and levels of anthropogenic impact. Lake Turgoyak is oligotrophic; Lake Uvildy is oligomesotrophic. Both water bodies are protected areas and natural monuments. But tourism and recreation are not prohibited on their territories. The mesoeutrophic Lake Ilmenskoe is partially located within the Ilmen State Reserve, and it experiences less anthropogenic impact. The eutrophic Shershnevskoe reservoir is located within the boundaries of the city of Chelyabinsk. It is used as a source of drinking water. Cyanobacteria was the dominant division in the eutrophic Shershnevskoe reservoir.
    [Show full text]
  • Especies De Algas De Ríos De Nuevo León, México: Nuevos Registros Para El Estado Polibotánica, Núm
    Polibotánica ISSN: 1405-2768 Instituto Politécnico Nacional, Escuela Nacional de Ciencias Biológicas Aguirre-Cavazos, D.E.; Moreno-Limón, S.; Salcedo-Martínez, S.M. Especies de algas de ríos de Nuevo León, México: nuevos registros para el estado Polibotánica, núm. 46, 2018, pp. 1-25 Instituto Politécnico Nacional, Escuela Nacional de Ciencias Biológicas DOI: https://doi.org/10.18387/polibotanica.46.1 Disponible en: https://www.redalyc.org/articulo.oa?id=62158254001 Cómo citar el artículo Número completo Sistema de Información Científica Redalyc Más información del artículo Red de Revistas Científicas de América Latina y el Caribe, España y Portugal Página de la revista en redalyc.org Proyecto académico sin fines de lucro, desarrollado bajo la iniciativa de acceso abierto Núm. 46: 1-25 Julio 2018 ISSN electrónico: 2395-9525 Polibotánica ISSN electrónico: 2395-9525 [email protected] Instituto Politécnico Nacional México http:www.polibotanica.mx ESPECIES DE ALGAS DE RÍOS DE NUEVO LEÓN, MÉXICO: NUEVOS REGISTROS PARA EL ESTADO ALGAE SPECIES FROM NUEVO LEON, MEXICO: NEW RECORDS FOR THE STATE Aguirre-Cavazos, D.E.; S. Moreno-Limón, y S.M. Salcedo-Martínez ESPECIES DE ALGAS DE RÍOS DE NUEVO LEÓN, MÉXICO: NUEVOS REGISTROS PARA EL ESTADO. ALGAE SPECIES FROM NUEVO LEON, MEXICO: NEW RECORDS FOR THE STATE. Núm. 46: 1-25 México. Julio 2018 Instituto Politécnico Nacional DOI: 10.18387/polibotanica.46.1 1 Núm. 46: 1-25 Julio 2018 ISSN electrónico: 2395-9525 ESPECIES DE ALGAS DE RÍOS DE NUEVO LEÓN, MÉXICO: NUEVOS REGISTROS PARA EL ESTADO ALGAE SPECIES FROM NUEVO LEON, MEXICO: NEW RECORDS FOR THE STATE D.E.
    [Show full text]
  • (Nostocales, Cyanobacteria) Sp
    Research Article Algae 2018, 33(2): 143-156 https://doi.org/10.4490/algae.2018.33.5.2 Open Access Morphological characterization and molecular phylogenetic analysis of Dolichospermum hangangense (Nostocales, Cyanobacteria) sp. nov. from Han River, Korea Hye Jeong Choi1, Jae-Hyoung Joo2, Joo-Hwan Kim1, Pengbin Wang1,a, Jang-Seu Ki3 and Myung-Soo Han1,2,* 1Department of Life Science, College of Natural Sciences, Hanyang University, Seoul 04763, Korea 2Research Institute for Natural Sciences, Hanyang University, Seoul 04763, Korea 3Department of Biotechnology, Sangmyung University, Seoul 03016, Korea Dolichospermum is a filamentous and heterocytous cyanobacterium that is one of the commonly occurring phyto- planktons in the Han River of Korea. Morphological observations led to the identification of D. planctonicum-like fila- ments in seasonal water samples. In the present study, we successfully isolated these filaments using culture methods, and examined its morphology using light and scanning electron microscopy. The morphology of the D. planctonicum- like species differed from that of typical D. planctonicum; it had thin cylindrical-shaped akinetes, which were narrower towards the ends than at the center. This morphology is firstly described in the genus Dolichospermum. In addition, the akinetes in the filament developed solitarily and were distant from the heterocytes. Phylogenetic analysis of the 16S rRNA sequences showed that our Dolichospermum clustered with D. planctonicum and D. circinale, which have coiled trichome. However, phylogenetic analysis of the gene encoding rivulose-1,5-bisphosphate carboxylase (rbcLX) clearly separated our species from other Dolichospermum, forming a unique clade. Additionally, structures of D. planctonicum and D. hangangense strains were different type in Box-B and V3 region.
    [Show full text]
  • Le Rôle De La Physique Du Lac Sur La Croissance Des Cyanobactéries
    IVERSITÉ DU QUÉBE À MO TRÉAL LE RÔLE DE LA PHYSIQUE DU LA UR LA EDE Y OBA TÉRIE MÉMOIRE PRÉSE TÉ OMME EXlGE CE PARTIELLE DE LA MAÎTRI E E BIOLOGIE PAR ZUZ A HRlV AKOVA A RlL2017 UNIVERSITÉ DU QUÉBEC À MONTRÉAL Service des bibliothèques Avertissement La diffusion de ce mémoire se fait dans le respect des droits de son auteur, qui a signé le formulaire Autorisation de reproduire et de diffuser un travail de recherche de cycles supérieurs (SDU-522 - Rév.0?-2011 ). Cette autorisation stipule que «conformément à l'article 11 du Règlement no 8 des études de cycles supérieurs, [l'auteur] concède à 1 Université du Québec à Montréal une licence non exclusive d'utilisation et de publication de la totalité ou d'une partie importante de [son] travail de recherche pour des fins pédagogiques et non commerciales. Plus précisément, [l 'auteur] autorise l'Université du Québec à Montréal à reproduire, diffuser, prêter distribuer ou vendre des copies de [son] travail de recherche à des fins non commerciales sur quelque support que ce soit, y compris l'Internet. Cette licence et cette autorisation n'entraînent pas une renonciation de [la] part [de l'auteur] à [ses] droits moraux ni à [ses] droits de propriété intellectuelle. Sauf entente contraire, [l 'auteur] conserve la liberté de diffuser et de commercialiser ou non ce travail dont [il] possède un exemplaire., n y a plusieurs façons de regarder un lac· il y a plusieurs saisons pour regarder un lac· il y a plusieurs rai ons de regarder un lac.
    [Show full text]
  • Toxic Cyanobacteria in Water; a Guide to Their Public Health
    Chapter 3 Introduction to cyanobacteria Leticia Vidal, Andreas Ballot, Sandra M. F. O. Azevedo, Judit Padisák and Martin Welker CONTENTS Introduction 163 3.1 Cell types and cell characteristics 164 3.2 Morphology of multicellular forms 168 3.3 Cyanobacterial pigments and colours 170 3.4 Secondary metabolites and cyanotoxins 171 3.5 Taxonomy of cyanobacteria 172 3.6 Major cyanobacterial groups 178 3.7 Description of common toxigenic and bloom-forming cyanobacterial taxa 179 3.7.1 Filamentous forms with heterocytes 190 3.7.2 Filamentous forms without heterocytes and akinetes 195 3.7.3 Colonial forms 200 Picture credits 203 References 204 INTRODUCTION Cyanobacteria are a very diverse group of prokaryotic organisms that thrive in almost every ecosystem on earth. In contrast to other prokaryotes (bacteria and archaea), they perform oxygenic photosynthesis and possess chlorophyll-a. Their closest relatives are purple bacteria (Woese et al., 1990; Cavalier-Smith, 2002) – and chloroplasts in higher plants (Moore et al., 2019). Photosynthetic activity of cyanobacteria is assumed to have changed the earth’s atmosphere in the Proterozoic Era some 2.4 billion years ago during the so-called Great Oxygenation Event (Hamilton et al., 2016; Garcia-Pichel et al., 2019). Historically, cyanobacteria were considered as plants or plant-like organ- isms and were termed “Schizophyceae”, “Cyanophyta”, “Cyanophyceae” or “blue-green algae”. Since their prokaryotic nature has unambiguously been proven, the term “cyanobacteria” (or occasionally “cyanoprokary- otes”) has been adopted in the scientific literature. A metagenomic study by Soo et al. (2017) revealed that cyanobacteria also comprise groups of 163 164 Toxic Cyanobacteria in Water nonphotosynthetic bacteria and the taxon Oxyphotobacteria is proposed for cyanobacteria in a strict sense.
    [Show full text]
  • Cyanobacteriaidentification Workshop
    October 5, 20165, October Washington Lake Protection Association Protection Lake Washington Cyanobacteria Identification Workshop Robin A. Matthews, Director, Institute for Watershed Studies, Huxley College of the Environment, Western Washington University, Bellingham, WA (USA) Photo by Rachael Gravon, former IWS graduate student What is this slime in my water? If I call this Anabaena, is it still toxic? AlgaeBase Nomenclature (current) Kingdom: Eubacteria Phylum: Cyanobacteria Class: Cyanophyceae Order: Nostocales Family: Aphanizomenonaceae Genus: Dolichospermum Species: crassum ITIS Nomenclature (old) Kingdom: Bacteria Phylum: Cyanobacteria Class: Cyanophyceae Order: Nostocales Family: Nostocaceae Genus: Anabaena Species: spiroides Variety: crassa Blue-Green Algae (Cyanobacteria) • No chloroplast, pyrenoid, nucleus, flagella • Usually in filaments or colonies; rarely solitary • Color might be blue- green ... or bright green, gray, blue, red, or even purple • Movement by gliding or twitching (no flagella) • Often very slimy! • May form toxic or otherwise noxious blooms Potentially toxic cyanobacteria bloom “Nontoxic” cyanobacteria bloom Dolichospermum spp Chroococcus Sphaerocystis Ceratium Nontoxic green algae bloom Nontoxic dinoflagellate bloom Is it Cyanobacteria? Yes, but is it No potentially toxic? Yes No* *All Cyanobacteria may be able to release compounds that can cause skin irritations and other responses Major Cyanobacteria Toxins* Microcystins (liver damage ++) Anabaena/Dolichospermum, Fischerella, Gloeotrichia, Nodularia, Microcystis,
    [Show full text]