Chrysophyceae
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New Records for the Turkish Freshwater Algal Flora
Turkish Journal of Water Science & Management Research Article ISSN: 2536 474X / e-ISSN: 2564-7334 Setting Measures for TacklingVolume: 5 Issue: Agricultural 2 Year: 2021 Diffuse Pollution of Küçük Menderes Basin ResearchKüçük Article Menderes Havzası’nda Tarımsal Kaynaklı Yayılı Kirlilikle New Records Mücadelefor the Turkish Tedbirlerinin Freshwater Belirlenmesi Algal Flora in Twenty Five River Basins of Turkey, Part IV: Ochrophyta Ayşegül Tanık1, Asude Hanedar*2, Emine Girgin3, Elçin Güneş2, Erdem Görgün1,3, Nusret Karakaya4, Gökçen Gökdereli5, Burhan Fuat Çankaya 5, Taner Kimence5, Yakup Karaaslan5 1Türkiye’dekiİstanbul Technical University25 Nehir (ITU), Havzasından Faculty of Civil Engineering, Türkiye DepartmentTatlı Su of Alg Environmental Florası İçin YeniEngineering, Kayıtlar, 34469, BölümMaslak-Istanbul/TURKEY IV: Ochrophyta [email protected] (0000-0002-0319-0298) 2 Namk Kemal University,1 Çorlu 2Faculty of Engineeri3 ng, Department of Environmental4 Engineering,5 Nilsun Demir , Burak Öterler , 59860Haşim Çorlu-Sömek Tekirda, Tuğbağ /TurkeyOngun Sevindik *, Elif Neyran Soylu , 6 6 7 1 8 [email protected] Karaaslan , Tolga (0000-0003-4 Çetin , Abuzer827-5954), Çelekli [email protected], Tolga Coşkun , Cüneyt (0000-0002-1457-1504) Nadir Solak , Faruk 3io EnvironmentalMaraşlioğlu Solutions,9, Murat Re şParlakitpaşa1 ,Mah., Merve Katar Koca Cd.1, Doğan Ar Teknokent Can Manavoğlu 1 2/5 D:2 12, 34469 1Ankara University, Faculty of Agriculture,Saryerİstanbul/Turkey Fisheries and Aquaculture Engineering, 06120, [email protected], -
Small but Manifold – Hidden Diversity in “
Published by the International Society of Protistologists Journal of Eukaryotic Microbiology ISSN 1066-5234 ORIGINAL ARTICLE Small but Manifold – Hidden Diversity in “Spumella-like Flagellates” Lars Grossmanna, Christina Bocka, Michael Schweikertb & Jens Boenigka a Department of Biodiversity, University of Duisburg-Essen, Universitatsstrasse€ 5, 45141 Essen, Germany b Department of Zoology, University of Stuttgart, Pfaffenwaldring 57, 70550 Stuttgart, Germany Keywords ABSTRACT Bacterivorous protists; biodiversity; Chrysomonads; Chrysophyceae; hetero- Colourless, nonscaled chrysophytes comprise morphologically similar or even trophic nanoflagellates; microbial food web; indistinguishable flagellates which are important bacterivors in water and soil microbial loop; Monas; Stramenopiles; crucial for ecosystem functioning. However, phylogenetic analyses indicate a taxonomy. multiple origin of such colourless, nonscaled flagellate lineages. These flagellates are often referred to as “Spumella-like flagellates” in ecological and biogeo- Correspondence graphic studies. Although this denomination reflects an assumed polyphyly, it L. Grossmann, Department of Biodiversity, obscures the phylogenetic and taxonomic diversity of this important flagellate University of Duisburg-Essen, Univer- group and, thus, hinders progress in lineage- and taxon-specific ecological sur- sitatsstrasse€ 5, 45141 Essen, Germany veys. The smallest representatives of colourless chrysophytes have been Telephone number: +49-(0)201-183-3200; addressed in very few taxonomic studies although they are among the dominant FAX number: +49-(0)201-183-4290; flagellates in field communities. To overcome the blurred picture and set the field e-mail: [email protected] for further investigation in biogeography and ecology of the organisms in ques- tion, we studied a set of strains of specifically small, colourless, nonscaled chry- Received: 7 March 2014; revised 16 somonad flagellates by means of electron microscopy and molecular analyses. -
Influence of Sea Ice on Protist Community Structure in the Central Arctic Ocean
Table of Contents Influence of sea ice on protist community structure in the Central Arctic Ocean by Kristin Hardge A thesis submitted in partial fulfillment of the requirements for the degree of Doctor of Philosophy in Biology Approved Dissertation Committee: Dr. Katja Metfies1, 2 Prof. Dr. Matthias Ullrich1 Dr. Mona Hoppenrath3 Dr. Eva-Maria Nöthig2 1 Jacobs University Bremen 2 Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven 3 Senckenberg Research Institute, German Centre for Marine Biodiversity Research, Wilhelmshaven Date of Defense: 10 August 2016 1 Table of Contents 2 Table of Contents “In the case of all things which have several parts and in which the totality is not, as it were, a mere heap, but the whole is something besides the parts, there is a cause.” Aristotle, Metaphysics 3 Table of Contents 4 Table of Contents Table of Contents 1 Summary ....................................................................................................................................... 7 2 General Introduction ..................................................................................................................... 9 2.1 Global warming ....................................................................................................................... 9 2.2 Changes in Arctic sea ice ........................................................................................................ 9 2.3 Protist biodiversity in the Arctic Ocean ............................................................................... -
High Diversity of the 'Spumella-Like' Flagellates: an Investigation Based
Blackwell Science, LtdOxford, UKEMIEnvironmental Microbiology 1462-2912Society for Applied Microbiology and Blackwell Publishing Ltd, 200475685697Original ArticleDiversity of ‘Spumella-like’ flagellatesJ. Boenigk, K. Pfandl, P. Stadler and A. Chatzinotas Environmental Microbiology (2005) 7(5), 685–697 doi:10.1111/j.1462-2920.2005.00743.x High diversity of the ‘Spumella-like’ flagellates: an investigation based on the SSU rRNA gene sequences of isolates from habitats located in six different geographic regions Jens Boenigk,1* Karin Pfandl,1 Peter Stadler1 and lates and in terms of the number of genotypes, (ii) Antonis Chatzinotas2 Spumella and Ochromonas are polyphyletic, and (iii) 1Institute for Limnology, Austrian Academy of Sciences, based on the SSU rRNA gene no biogeographical Mondseestr. 9, A-5310 Mondsee, Austria. restriction of certain branches could be observed 2UFZ Centre for Environmental Research Leipzig-Halle, even though different ecotypes may be represented Department of Environmental Microbiology, by the same genotype. Permoserstrasse 15, D-04318 Leipzig, Germany. Introduction Summary Since 1983 Azam and colleagues (Azam et al., 1983) We isolated 28 strains of ‘Spumella-like’ flagellates introduced the concept of the microbial loop, the signifi- from different freshwater and soil habitats in Austria, cance of heterotrophic single-cell eukaryotes for carbon People’s Republic of China, Nepal, New Zealand, transfer through aquatic food webs has become generally Uganda, Kenya, Tanzania and Hawaii by use of a mod- accepted (Wylie and Currie, 1991; Sanders et al., 1994; ified filtration–acclimatization method. ‘Spumella-like’ Sherr and Sherr, 1994; Arndt et al., 2000; Boenigk and flagellates were found in all of the samples and were Arndt, 2002). -
Cob Alg Cont 9.Pdf
Acta Botánica Malacitana, 9: 27 - 40 Málaga, 1984 CATALOGO DE LAS ALGAS CONTINENTALES ESPAÑOLAS. II. CRASPEDOPHYCEAE, CRYPTOPHYCEAE, CHRYSOPHYCEAE, DINOPHYCEAE, EUGLENOPHYCEAE, HAPTOPHYCEAE, PHAEOPHYCEAE, RHODOPHYCEAE, XANTHOPHYCEAE M. ALVAREZ COBELAS a Ramón Margalef López RESUMEN: En este trabajo se mencionan las algas de agua dulce encontradas en España hasta julio de 1981 pertenecientes alas siguientes grupos (entre paréntesis, el número de táxones encontrados): Craspedophyceae (3), Cryptophyceae (20), Chrysophyceae (87), Dinophyceae (69), Euglenophyceae (116), Haptophyceae (9), Phaeophyceae (1), Rhodophyceae (20), Xanthophyceae (106). SUMMARY: A catalogue of Spanish freshwater algae belonging to the Classes listed below and found up to July 1981 is given. The Classes are the following (taza in brackets): Craspedo- phyceae (3), Cryptophyceae (20), Chrysophyceae (87), Dinophyceae (69), Euglenophyceae (116), Haptophyceae (9), Phaeophyceae (1), Rhodophyceae (20), Xanthophyceae (106). INTRODUCC ION El presente trabajo pretende continuar el listado de las algas de agua dulce citadas o descritas a partir de material espariol en un intento de animar al estudio de las mismas. Ya se han publicado la bibliografía sobre la que se basa (Alvarez Cobelas, 1981) y la parte dedicada a las Diatomeas (Alvarez Cobelas & Estévez, 1982). Queremos insistir en el hecho de que estos estudios se han lle- vado a cabo sobre material escrito y no sobre herbarios, casi inexis- tentes, y que sólo abarcan las publicaciones encontradas hasta julio de 1981; más adelante se confeccionarán suplementos con las incorpo- raciones posteriores a dicha fecha. Los grupos de algas incluidos en este trabajo se han ordenado en Clases y Familias siguiendo las obras de Bourrelly (1968 y 1970) y Silva (1980). Para la revisión se han consultado, además del ING (1979), las publicaciones siguientes: Cryptophyceae: Anton & Duthie (1981), Hüber-Pestalozzi (1950) y Ja- vorniciq (1976). -
Stuck in the Mud: Suspended Sediments As a Key Issue for Survival of Chrysomonad Flagellates
AQUATIC MICROBIAL ECOLOGY Vol. 45: 89–99, 2006 Published October 25 Aquat Microb Ecol OPENPEN ACCESSCCESS Stuck in the mud: suspended sediments as a key issue for survival of chrysomonad flagellates Karin Pfandl*, Jens Boenigk Institute for Limnology, Austrian Academy of Sciences, Mondseestr. 9, 5310 Mondsee, Austria ABSTRACT: The effect of suspended fine sediments on chrysomonad flagellates was investigated for ‘Spumella-like’ flagellates in laboratory studies and exemplarily for a flagellate community (with a focus on chrysomonads) originating from the oligomesotrophic Lake Mondsee, Austria, using differ- ent clay minerals and silicate beads. In the community experiment, the abundances of Spumella-like flagellates decreased significantly after introduction of suspended clays, but on the community level suspended clays did not negatively affect flagellate abundance. In order to understand this taxon- specific response, the influence of different clay characteristics, specifically of particle concentration and size, was investigated for Spumella-like flagellates in laboratory studies. We used ultra- microbacteria, i.e. typical bacterioplankton of Lake Mondsee, as food. For comparison we also investigated growth rates of the Spumella-like flagellates feeding on the large bacterium Listonella pelagia. These experiments confirmed that at bacterial abundances realized in oligotrophic and mesotrophic lakes, the flagellates are severely food limited. The presence of suspended sediments generally decreased the growth at any food concentration tested. This decrease was reflected in shifts of the growth kinetic parameters, i.e. in a positive correlation between the half-saturation con- stant and the threshold food concentration and a negative correlation between the maximal growth rate and the suspended sediment concentration. The clearance rates strongly decreased when small and large particles were present, but were only slightly affected for intermediate-sized particles.