Peres Ck Dr Rcla.Pdf (2.769Mb)

Total Page:16

File Type:pdf, Size:1020Kb

Peres Ck Dr Rcla.Pdf (2.769Mb) UNIVERSIDADE ESTADUAL PAULISTA unesp “JÚLIO DE MESQUITA FILHO” INSTITUTO DE BIOCIÊNCIAS – RIO CLARO PROGRAMA DE PÓS-GRADUAÇÃO EM CIÊNCIAS BIOLÓGICAS (BIOLOGIA VEGETAL) TAXONOMIA, DISTRIBUIÇÃO AMBIENTAL E CONSIDERAÇÕES BIOGEOGRÁFICAS DE ALGAS VERDES MACROSCÓPICAS EM AMBIENTES LÓTICOS DE UNIDADES DE CONSERVAÇÃO DO SUL DO BRASIL CLETO KAVESKI PERES Tese apresentada ao Instituto de Biociências do Câmpus de Rio Claro, Universidade Estadual Paulista, como parte dos requisitos para obtenção do título de Doutor em Ciências Biológicas (Biologia Vegetal). Rio Claro Junho - 2011 CLETO KAVESKI PERES TAXONOMIA, DISTRIBUIÇÃO AMBIENTAL E CONSIDERAÇÕES BIOGEOGRÁFICAS DE ALGAS VERDES MACROSCÓPICAS EM AMBIENTES LÓTICOS DE UNIDADES DE CONSERVAÇÃO DO SUL DO BRASIL ORIENTADOR: Dr. CIRO CESAR ZANINI BRANCO Comissão Examinadora: Prof. Dr. Ciro Cesar Zanini Branco Departamento de Ciências Biológicas – Unesp/ Assis Prof. Dr. Carlos Eduardo de Mattos Bicudo Seção de Ecologia – Instituto de Botânica de São Paulo Prof. Dr. Orlando Necchi Júnior Departamento de Zoologia e Botânica/ IBILCE – UNESP/ São José do Rio Preto Profa. Dra. Ina de Souza Nogueira Departamento de Biologia – Universidade Federal de Goiás Profa. Dra. Célia Leite Sant´Anna Seção de Ficologia – Instituto de Botânica de São Paulo RIO CLARO 2011 AGRADECIMENTOS Muitas pessoas contribuíram com o desenvolvimento desse trabalho e com a minha formação pessoal e gostaria de deixar a todos meu reconhecimento e um sincero agradecimento. Porém, algumas pessoas/instituições foram fundamentais nestes quatro anos de doutorado, sendo imprescindível agradecê-las nominalmente: Aos meus pais, Euclinir e Lidia, por terem sempre acreditado em mim e por me incentivarem a continuar na área que escolhi. Agradeço imensamente pela melhor herança que uma pessoa pode receber que é o exemplo de humildade e dignidade que vocês têm. Ao Prof. Dr. Ciro Cesar Zanini Branco, pela orientação desde a graduação, por ter confiado sempre em mim e, principalmente, por colocar a minha formação profissional acima de tudo. Também, ao meu amigo Cirão pelos agradáveis momentos no laboratório, coletas, viagens e discussões intermináveis acerca do mundo, pelo bom humor sempre e pelo seu exemplo de profissionalismo. Ao Prof. Dr. Pitágoras C. Bispo, por disponibilizar todo o seu material e todo o seu vasto conhecimento, pelos ótimos conselhos e pela sua amizade e seu humor sempre contagiante. À Thais Antunes Riolfi por toda a ajuda com a correção da tese, pelas discussões durante a construção do trabalho e, principalmente, por ser essa pessoa maravilhosa. Obrigado por fazer parte tão intensamente da minha vida. Ao grande amigo Rafael Guilherme Emed (in memorian) por toda a ajuda em todo o trabalho de campo, pela convivência durante as disciplinas e pela amizade durante esses anos. Foi uma honra tê-lo conhecido e, com certeza, sua lembrança continuará sempre no nosso meio. Ao meu amigo Rogério Antonio Krupek por ter me apresentado o mundo das macroalgas de riachos, por todas as parcerias nos trabalhos ao longo desses anos e pela sua amizade. Ao meu grande amigo Aurélio Fajar Tonetto por ter compartilhado enormes discussões sobre as macroalgas (filosofia, matemática e muito além...), pela parceria nos trabalhos, pela ajuda nas coletas e, em especial, pela sua amizade sincera. Aos colegas do LABIA pelo convívio diário, pelos momentos de descontração, pelas ajudas em excursões de coleta e pelos fogos do final do ano, em especial aqueles da área de ficologia, Régis e Bruno. Aos meus irmãos (Cleber e Clérito), cunhada (Ana Carla) e sobrinhas (Heloíse e Caroline), pela sempre receptiva acolhida, pelas conversas e pelo grande incentivo ao longo de todos esses anos. Aos meus amigos de graduação e de Guarapuava (e de sempre): Alemão, CB, Cristiano, Luciano, Dener, Durinézio, Helmel, He-man, Marcos, Xampú e, do Mestrado: Elton, Leonardo e Pedro. Aos grandes amigos que fiz em Assis neste período: Artur, Bixíssimo, Carlinho, Cherry, Chú, Douglinhas, Goiano, Ina, Jão, Paciência, Spanta... etc! Bem como a todas as pessoas agradáveis que conheci por intermédio deles. Ao Programa de Pós-Graduação da UNESP/ Campus de Rio Claro, especialmente aos professores que muito contribuíram com a minha formação. À UNESP/ Campus de Assis, por ter cedido seu espaço para a realização deste trabalho e por ter proporcionado as minhas primeiras experiências como profissional na área acadêmica. Ao Professor Dr. Luis Henrique Zanini Branco, por ter aceitado prontamente ser meu orientador no início do curso. Ao Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) pela bolsa durante todo o doutorado. À Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP), pelo financiamento das viagens e do material utilizado nas amostragens. À Dra. Izabel Dias por todas as sugestões ao longo do desenvolvimento do trabalho. Aos componentes da banca: Dra Ina S. Nogueira, Dra Célia Leita Sant`Anna, Dr. Orlando Necchi Júnior e Dr. Carlos E. M. Bicudo, pelas valiosas sugestões e contribuições. “É impossível entrar duas vezes no mesmo rio porque, na segunda vez, tanto o rio quanto você não serão mais os mesmos ... tudo muda.” Heráclito de Éfeso (séc. V a.c.) RESUMO Algas verdes são organismos presentes em todo o mundo, ocorrendo em uma grande amplitude de condições ecológicas. Em ambientes lóticos, elas são importantes tanto para a produção primária quanto para a criação e manutenção de habitats para outros organismos. Neste contexto, o presente estudo teve como objetivo abordar a taxonomia, distribuição ambiental e considerações biogeográficas das algas verdes macroscópicas de ambientes lóticos localizados em Unidades de Conservação (UC) na região Sul do Brasil. Para tanto, foram amostradas 10 UC´s dos quatro principais biomas desta região, totalizando 105 riachos. Na abordagem taxonômica foram tratadas 16 espécies pertencentes às ordens Chaetophorales, Cladophorales, Klebsormidiales, Microsporales e Ulotrichales, além de três espécies de algas verdes coloniais. Uma espécie do gênero Basicladia foi considerada como novo registro para a ciência e Cladophora sterrocladia foi registrada pela primeira vez no Brasil. Na abordagem teórica foram discutidos os aspectos reprodutivos das famílias Oedogoniaceae e Zygnemataceae e a sua implicação em estudos taxonômicos e ecológicos. Uma hipótese relacionada à poliploidia foi sugerida para explicar a baixa frequência de ocorrência de espécimes portadores de estruturas reprodutivas em ambientes lóticos. A partir dos materiais destas duas famílias encontrados nos riachos do Sul do Brasil foi conduzida uma separação em 12 morfotipos baseados essencialmente no diâmetro celular. Estes morfotipos foram testados quanto a sua relação com as variáveis ambientais. Por fim, considerando o aspecto ecológico foi abordada a distribuição ambiental das algas verdes macroscópicas de riachos nos principais biomas da região Sul do Brasil, levando em consideração os padrões de riqueza, abundância e composição de espécies e a sua relação com a distância geográfica e as variáveis ambientais. Os resultados revelaram que a ocorrência ou não do grupo esteve essencialmente ligada ao sombreamento e, em menor grau, ao pH e velocidade da correnteza do trecho amostrado. Uma vez ocorrendo em um dado segmento, os padrões de riqueza, abundância e diversidade foram determinados pelas características da paisagem (no caso, o bioma), os quais provavelmente também estão relacionados à disponibilidade de luz, mas neste caso não somente do trecho e sim de todo o sistema. Por último, a estruturação da composição florística do grupo não mostrou forte associação nem com fatores ambientais nem com os espaciais, sendo provavelmente determinada por fatores estocásticos ou por interações bióticas e variáveis microambientais não mensuradas. ABSTRACT Green algae are organisms found throughout the world, occurring in a wide range of ecological conditions. In lotic environments, green algae are important both for primary production and for the creation and maintaining of habitats for other organisms. In this context, this study aimed to addressing the taxonomy, ecological distribution and biogeographical considerations of lotic macroscopic green algae in conservation units (UC) in Southern Brazil. For this purpose, 10 UC´s in four principal biomes of this region were sampled, amounting 105 streams. In the taxonomic approach were treated 16 species belonging to the orders Chaetophorales, Cladophorales, Klebsormidiales, Microsporales and Ulotrichales, and three species of colonial green algae. One species of the genus Basicladia was considered as a new record to the science and Cladophora sterrocladia was first recorded in Brazil. In the theoretical approach were discussed the reproductive aspects of Oedogoniaceae and Zygnemataceae families and their implication in the taxonomic and ecological studies. One hypothesis related to polyploidy was suggested to explain the low frequency of specimens bearing reproductive structures in lotic environments. Based on the materials found in southern Brazil was made a division into 12 morphotypes based essentially on cell diameter. These morphotypes were tested for their relationship with environmental variables. Finally, the ecological aspect addressed the environmental distribution of macroscopic green algae from streams of the main biomes of Southern Brazil, taking into account the richness, abundance and species composition and their relation to geographic distance and the environment variables. The results showed that the presence or
Recommended publications
  • Universidad Autónoma De Nuevo León Facultad De Ciencias Biológicas
    UNIVERSIDAD AUTÓNOMA DE NUEVO LEÓN FACULTAD DE CIENCIAS BIOLÓGICAS TESIS TAXONOMÍA, DISTRIBUCIÓN E IMPORTANCIA DE LAS ALGAS DE NUEVO LEÓN POR DIANA ELENA AGUIRRE CAVAZOS COMO REQUISITO PARCIAL PARA OBTENER EL GRADO DE DOCTOR EN CIENCIAS CON ACENTUACIÓN EN MANEJO Y ADMINISTRACIÓN DE RECURSOS VEGETALES MAYO, 2018 TAXONOMÍA, DISTRIBUCIÓN E IMPORTANCIA DE LAS ALGAS DE NUEVO LEÓN Comité de Tesis Presidente: Dr. Sergio Manuel Salcedo Martínez. Secretario: Dr. Sergio Moreno Limón. Vocal 1: Hugo Alberto Luna Olvera. Vocal 2: Dr. Marco Antonio Alvarado Vázquez. Vocal 3: Dra. Alejandra Rocha Estrada. TAXONOMÍA, DISTRIBUCIÓN E IMPORTANCIA DE LAS ALGAS DE NUEVO LEÓN Dirección de Tesis Director: Dr. Sergio Manuel Salcedo Martínez. AGRADECIMIENTOS A Dios, por guiar siempre mis pasos y darme fortaleza ante las dificultades. Al Dr. Sergio Manuel Salcedo Martínez, por su disposición para participar como director de este proyecto, por sus consejos y enseñanzas que siempre tendré presente tanto en mi vida profesional como personal; pero sobre todo por su dedicación, paciencia y comprensión que hicieron posible la realización de este trabajo. A la Dra. Alejandra Rocha Estrada, El Dr. Marco Antonio Alvarado Vázquez, el Dr. Sergio Moreno Limón y el Dr. Hugo Alberto Luna Olvera por su apoyo y aportaciones para la realización de este trabajo. Al Dr. Eberto Novelo, por sus valiosas aportaciones para enriquecer el listado taxonómico. A la M.C. Cecilia Galicia Campos, gracias Cecy, por hacer tan amena la estancia en el laboratorio y en el Herbario; por esas pláticas interminables y esas “riso terapias” que siempre levantaban el ánimo. A mis entrañables amigos, “los biólogos”, “los cacos”: Brenda, Libe, Lula, Samy, David, Gera, Pancho, Reynaldo y Ricardo.
    [Show full text]
  • Impact of Procedural Steps and Cryopreservation Agents in the Cryopreservation of Chlorophyte Microalgae
    Impact of Procedural Steps and Cryopreservation Agents in the Cryopreservation of Chlorophyte Microalgae Tony V. L. Bui, Ian L. Ross, Gisela Jakob, Ben Hankamer* Institute for Molecular Biosciences, The University of Queensland, Brisbane, Queensland, Australia Abstract The maintenance of traditional microalgae collections based on liquid and solid media is labour intensive, costly and subject to contamination and genetic drift. Cryopreservation is therefore the method of choice for the maintenance of microalgae culture collections, but success is limited for many species. Although the mechanisms underlying cryopreservation are understood in general, many technical variations are present in the literature and the impact of these are not always elaborated. This study describes two-step cryopreservation processes in which 3 microalgae strains representing different cell sizes were subjected to various experimental approaches to cryopreservation, the aim being to investigate mechanistic factors affecting cell viability. Sucrose and dimethyl sulfoxide (DMSO) were used as cryoprotectants. They were found to have a synergistic effect in the recovery of cryopreserved samples of many algal strains, with 6.5% being the optimum DMSO concentration. The effect of sucrose was shown to be due to improved cell survival and recovery after thawing by comparing the effect of sucrose on cell viability before or after cryopreservation. Additional factors with a beneficial effect on recovery were the elimination of centrifugation steps (minimizing cell damage), the reduction of cell concentration (which is proposed to reduce the generation of toxic cell wall components) and the use of low light levels during the recovery phase (proposed to reduce photooxidative damage). The use of the best conditions for each of these variables yielded an improved protocol which allowed the recovery and subsequent improved culture viability of a further 16 randomly chosen microalgae strains.
    [Show full text]
  • The Hawaiian Freshwater Algae Biodiversity Survey
    Sherwood et al. BMC Ecology 2014, 14:28 http://www.biomedcentral.com/1472-6785/14/28 RESEARCH ARTICLE Open Access The Hawaiian freshwater algae biodiversity survey (2009–2014): systematic and biogeographic trends with an emphasis on the macroalgae Alison R Sherwood1*, Amy L Carlile1,2, Jessica M Neumann1, J Patrick Kociolek3, Jeffrey R Johansen4, Rex L Lowe5, Kimberly Y Conklin1 and Gernot G Presting6 Abstract Background: A remarkable range of environmental conditions is present in the Hawaiian Islands due to their gradients of elevation, rainfall and island age. Despite being well known as a location for the study of evolutionary processes and island biogeography, little is known about the composition of the non-marine algal flora of the archipelago, its degree of endemism, or affinities with other floras. We conducted a biodiversity survey of the non-marine macroalgae of the six largest main Hawaiian Islands using molecular and microscopic assessment techniques. We aimed to evaluate whether endemism or cosmopolitanism better explain freshwater algal distribution patterns, and provide a baseline data set for monitoring future biodiversity changes in the Hawaiian Islands. Results: 1,786 aquatic and terrestrial habitats and 1,407 distinct collections of non-marine macroalgae were collected from the islands of Kauai, Oahu, Molokai, Maui, Lanai and Hawaii from the years 2009–2014. Targeted habitats included streams, wet walls, high elevation bogs, taro fields, ditches and flumes, lakes/reservoirs, cave walls and terrestrial areas. Sites that lacked freshwater macroalgae were typically terrestrial or wet wall habitats that were sampled for diatoms and other microalgae. Approximately 50% of the identifications were of green algae, with lesser proportions of diatoms, red algae, cyanobacteria, xanthophytes and euglenoids.
    [Show full text]
  • Perspectives in Phycology Vol
    Perspectives in Phycology Vol. 3 (2016), Issue 3, p. 141–154 Article Published online June 2016 Diversity and ecology of green microalgae in marine systems: an overview based on 18S rRNA gene sequences Margot Tragin1, Adriana Lopes dos Santos1, Richard Christen2,3 and Daniel Vaulot1* 1 Sorbonne Universités, UPMC Univ Paris 06, CNRS, UMR 7144, Station Biologique, Place Georges Teissier, 29680 Roscoff, France 2 CNRS, UMR 7138, Systématique Adaptation Evolution, Parc Valrose, BP71. F06108 Nice cedex 02, France 3 Université de Nice-Sophia Antipolis, UMR 7138, Systématique Adaptation Evolution, Parc Valrose, BP71. F06108 Nice cedex 02, France * Corresponding author: [email protected] With 5 figures in the text and an electronic supplement Abstract: Green algae (Chlorophyta) are an important group of microalgae whose diversity and ecological importance in marine systems has been little studied. In this review, we first present an overview of Chlorophyta taxonomy and detail the most important groups from the marine environment. Then, using public 18S rRNA Chlorophyta sequences from culture and natural samples retrieved from the annotated Protist Ribosomal Reference (PR²) database, we illustrate the distribution of different green algal lineages in the oceans. The largest group of sequences belongs to the class Mamiellophyceae and in particular to the three genera Micromonas, Bathycoccus and Ostreococcus. These sequences originate mostly from coastal regions. Other groups with a large number of sequences include the Trebouxiophyceae, Chlorophyceae, Chlorodendrophyceae and Pyramimonadales. Some groups, such as the undescribed prasinophytes clades VII and IX, are mostly composed of environmental sequences. The 18S rRNA sequence database we assembled and validated should be useful for the analysis of metabarcode datasets acquired using next generation sequencing.
    [Show full text]
  • Neoproterozoic Origin and Multiple Transitions to Macroscopic Growth in Green Seaweeds
    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, f g h i,j,k e Pavel Skaloud , Charles F. Delwiche , Andrew H. Knoll , John A. Raven , Heroen Verbruggen , Klaas Vandepoeleb,c,d,1,2, Olivier De Clercka,1,2, and Frederik Leliaerta,l,1,2 aDepartment of Biology, Phycology Research Group, Ghent University, 9000 Ghent, Belgium; bDepartment of Plant Biotechnology and Bioinformatics, Ghent University, 9052 Zwijnaarde, Belgium; cVlaams Instituut voor Biotechnologie Center for Plant Systems Biology, 9052 Zwijnaarde, Belgium; dBioinformatics Institute Ghent, Ghent University, 9052 Zwijnaarde, Belgium; eSchool of Biosciences, University of Melbourne, Melbourne, VIC 3010, Australia; fDepartment of Botany, Faculty of Science, Charles University, CZ-12800 Prague 2, Czech Republic; gDepartment of Cell Biology and Molecular Genetics, University of Maryland, College Park, MD 20742; hDepartment of Organismic and Evolutionary Biology, Harvard University, Cambridge, MA 02138; iDivision of Plant Sciences, University of Dundee at the James Hutton Institute, Dundee DD2 5DA, United Kingdom; jSchool of Biological Sciences, University of Western Australia, WA 6009, Australia; kClimate Change Cluster, University of Technology, Ultimo, NSW 2006, Australia; and lMeise Botanic Garden, 1860 Meise, Belgium Edited by Pamela S. Soltis, University of Florida, Gainesville, FL, and approved December 13, 2019 (received for review June 11, 2019) The Neoproterozoic Era records the transition from a largely clear interpretation of how many times and when green seaweeds bacterial to a predominantly eukaryotic phototrophic world, creat- emerged from unicellular ancestors (8). ing the foundation for the complex benthic ecosystems that have There is general consensus that an early split in the evolution sustained Metazoa from the Ediacaran Period onward.
    [Show full text]
  • Mannitol Biosynthesis in Algae : More Widespread and Diverse Than Previously Thought
    This is a repository copy of Mannitol biosynthesis in algae : more widespread and diverse than previously thought. White Rose Research Online URL for this paper: https://eprints.whiterose.ac.uk/113250/ Version: Accepted Version Article: Tonon, Thierry orcid.org/0000-0002-1454-6018, McQueen Mason, Simon John orcid.org/0000-0002-6781-4768 and Li, Yi (2017) Mannitol biosynthesis in algae : more widespread and diverse than previously thought. New Phytologist. pp. 1573-1579. ISSN 1469-8137 https://doi.org/10.1111/nph.14358 Reuse Items deposited in White Rose Research Online are protected by copyright, with all rights reserved unless indicated otherwise. They may be downloaded and/or printed for private study, or other acts as permitted by national copyright laws. The publisher or other rights holders may allow further reproduction and re-use of the full text version. This is indicated by the licence information on the White Rose Research Online record for the item. Takedown If you consider content in White Rose Research Online to be in breach of UK law, please notify us by emailing [email protected] including the URL of the record and the reason for the withdrawal request. [email protected] https://eprints.whiterose.ac.uk/ 1 Mannitol biosynthesis in algae: more widespread and diverse than previously thought. Thierry Tonon1,*, Yi Li1 and Simon McQueen-Mason1 1 Department of Biology, Centre for Novel Agricultural Products, University of York, Heslington, York, YO10 5DD, UK. * Author for correspondence: tel +44 1904328785; email [email protected] Key words: Algae, primary metabolism, mannitol biosynthesis, mannitol-1-phosphate dehydrogenase, mannitol-1-phosphatase, haloacid dehalogenase, histidine phosphatase, evolution of metabolic pathways.
    [Show full text]
  • Comparative Genomic View of the Inositol-1, 4, 5-Trisphosphate
    Title Comparative Genomic View of The Inositol-1,4,5-Trisphosphate Receptor in Plants Author(s) Mikami, Koji Citation Journal of Plant Biochemistry & Physiology, 02(02) Issue Date 2014-9-15 Doc URL http://hdl.handle.net/2115/57862 Type article File Information comparative-genomic-view-of-the-inositoltrisphosphate-receptor.pdf Instructions for use Hokkaido University Collection of Scholarly and Academic Papers : HUSCAP Mikami, J Plant Biochem Physiol 2014, 2:3 Plant Biochemistry & Physiology http://dx.doi.org/10.4172/2329-9029.1000132 HypothesisResearch Article OpenOpen Access Access Comparative Genomic View of The Inositol-1,4,5-Trisphosphate Receptor in Plants Koji Mikami* Faculty of Fisheries Sciences, Hokkaido University, 3-1-1 Minato-cho, Hakodate 041 - 8611, Japan Abstract 2+ Terrestrial plants lack inositol-1,4,5-trisphosphate (IP3) receptor regulating transient Ca increase to activate 2+- cellular Ca dependent physiological events. To understand an evolutional route of the loss of the IP3 receptor gene, conservation of the IP3 receptor gene in algae was examined in silico based on the accumulating information of genomes and expression sequence tags. Results clearly demonstrated that the lack of the gene was observed in Rhodophyta, Chlorophyta except for Volvocales and Streptophyta. It was therefore hypothesized that the plant IP3 receptor gene was eliminated from the genome at multiple occasions; after divergence of Chlorophyta and Rhodophyta and of Chlorophyta and Charophyta. Keywords: Alga; Ca2+; Comparative genomics; Gene; Inositol-1,4,5- was probably lost from lineages of red algae and green algae except for trisphosphate receptor Volvocales (Figure 1). In fact, the genomes of unicellular Aureococcus anophagefferrens and multicellular Ectocarpus siliculosus carry an IP3 Abbreviations: DAG: Diacylglycerol; IP3: Inositol-1,4,5- receptor gene homologue (Figure 1).
    [Show full text]
  • 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].
    [Show full text]
  • Airborne Microalgae: Insights, Opportunities, and Challenges
    crossmark MINIREVIEW Airborne Microalgae: Insights, Opportunities, and Challenges Sylvie V. M. Tesson,a,b Carsten Ambelas Skjøth,c Tina Šantl-Temkiv,d,e Jakob Löndahld Department of Marine Sciences, University of Gothenburg, Gothenburg, Swedena; Department of Biology, Lund University, Lund, Swedenb; National Pollen and Aerobiology Research Unit, Institute of Science and the Environment, University of Worcester, Worcester, United Kingdomc; Department of Design Sciences, Lund University, Lund, Swedend; Stellar Astrophysics Centre, Department of Physics and Astronomy, Aarhus University, Aarhus, Denmarke Airborne dispersal of microalgae has largely been a blind spot in environmental biological studies because of their low concen- tration in the atmosphere and the technical limitations in investigating microalgae from air samples. Recent studies show that airborne microalgae can survive air transportation and interact with the environment, possibly influencing their deposition rates. This minireview presents a summary of these studies and traces the possible route, step by step, from established ecosys- tems to new habitats through air transportation over a variety of geographic scales. Emission, transportation, deposition, and adaptation to atmospheric stress are discussed, as well as the consequences of their dispersal on health and the environment and Downloaded from state-of-the-art techniques to detect and model airborne microalga dispersal. More-detailed studies on the microalga atmo- spheric cycle, including, for instance, ice nucleation activity and transport simulations, are crucial for improving our under- standing of microalga ecology, identifying microalga interactions with the environment, and preventing unwanted contamina- tion events or invasions. he presence of microorganisms in the atmosphere has been phyta and Ochrophyta in the atmosphere (taxonomic classifica- Tdebated over centuries.
    [Show full text]
  • Dynamics of Phytoplankton Communities in Eutrophying Tropical Shrimp Ponds Affected by Vibriosis
    1 Marine Pollution Bulletin Achimer September 2016, Volume 110, Issue 1, Pages 449-459 http://dx.doi.org/10.1016/j.marpolbul.2016.06.015 http://archimer.ifremer.fr http://archimer.ifremer.fr/doc/00343/45411/ © 2016 Elsevier Ltd. All rights reserved. Dynamics of phytoplankton communities in eutrophying tropical shrimp ponds affected by vibriosis Lemonnier Hugues 1, *, Lantoine François 2, Courties Claude 2, Guillebault Delphine 2, 3, Nézan Elisabeth 4, Chomérat Nicolas 4, Escoubeyrou Karine 5, Galinié Christian 6, Blockmans Bernard 6, Laugier Thierry 1 1 IFREMER LEAD, BP 2059, 98846 Nouméa cedex, New Caledonia, France 2 Sorbonne Universités, UPMC Univ Paris 06, UMR 8222, LECOB, Observatoire Océanologique, F- 66650 Banyuls/mer, France 3 Microbia Environnement, Observatoire Océanologique de Banyuls, 66650 Banyuls-sur mer, France 4 IFREMER, LER BO, Station de Biologie Marine, Place de la Croix, BP 40537, 29185 Concarneau Cedex, France 5 Sorbonne Universités, UPMC Univ Paris 06, CNRS, Plate-forme Bio2Mar, Observatoire Océanologique, F-66650 Banyuls/Mer, France 6 GFA, Groupement des Fermes Aquacoles, ORPHELINAT, 1 rue Dame Lechanteur, 98800 Nouméa cedex, New Caledonia, France * Corresponding author : Hugues Lemonnier, email address : [email protected] Abstract : Tropical shrimp aquaculture systems in New Caledonia regularly face major crises resulting from outbreaks of Vibrio infections. Ponds are highly dynamic and challenging environments and display a wide range of trophic conditions. In farms affected by vibriosis, phytoplankton biomass and composition are highly variable. These conditions may promote the development of harmful algae increasing shrimp susceptibility to bacterial infections. Phytoplankton compartment before and during mortality outbreaks was monitored at a shrimp farm that has been regularly and highly impacted by these diseases.
    [Show full text]
  • Comparative Genomic View of the Inositol-1,4,5-Trisphosphate Receptor in Plants
    Title Comparative Genomic View of The Inositol-1,4,5-Trisphosphate Receptor in Plants Author(s) Mikami, Koji Journal of Plant Biochemistry & Physiology, 02(02) Citation https://doi.org/10.4172/2329-9029.1000132 Issue Date 2014-9-15 Doc URL http://hdl.handle.net/2115/57862 Type article File Information comparative-genomic-view-of-the-inositoltrisphosphate-receptor.pdf Instructions for use Hokkaido University Collection of Scholarly and Academic Papers : HUSCAP Mikami, J Plant Biochem Physiol 2014, 2:3 Plant Biochemistry & Physiology http://dx.doi.org/10.4172/2329-9029.1000132 HypothesisResearch Article OpenOpen Access Access Comparative Genomic View of The Inositol-1,4,5-Trisphosphate Receptor in Plants Koji Mikami* Faculty of Fisheries Sciences, Hokkaido University, 3-1-1 Minato-cho, Hakodate 041 - 8611, Japan Abstract 2+ Terrestrial plants lack inositol-1,4,5-trisphosphate (IP3) receptor regulating transient Ca increase to activate 2+- cellular Ca dependent physiological events. To understand an evolutional route of the loss of the IP3 receptor gene, conservation of the IP3 receptor gene in algae was examined in silico based on the accumulating information of genomes and expression sequence tags. Results clearly demonstrated that the lack of the gene was observed in Rhodophyta, Chlorophyta except for Volvocales and Streptophyta. It was therefore hypothesized that the plant IP3 receptor gene was eliminated from the genome at multiple occasions; after divergence of Chlorophyta and Rhodophyta and of Chlorophyta and Charophyta. Keywords: Alga; Ca2+; Comparative genomics; Gene; Inositol-1,4,5- was probably lost from lineages of red algae and green algae except for trisphosphate receptor Volvocales (Figure 1).
    [Show full text]
  • Basicladia Emedii (Cladophorales, Chlorophyta): a New Freshwater Epilithic Species from Brazil
    Cryptogamie, Algologie, 2012, 33 (4): 329-337 © 2012 Adac. Tous droits réservés Basicladia emedii (Cladophorales, Chlorophyta): a new freshwater epilithic species from Brazil Cleto Kaveski PERES a* & Ciro Cesar Zanini BRANCO b a Universidade Federal da Integração Latino-Americana (UNILA) Av. Tancredo Neves, 6731, Parque Tecnológico Itaipu CEP 85867-970 | Foz do Iguaçu - Paraná – Brasil b Universidade Estadual Paulista (UNESP), Faculdade de Ciências e Letras de Assis Av. Dom Antônio, 2100, Parque Universitário CEP 19806-900 | Assis - São Paulo – Brasil Abstract – Basicladia emedii sp. nov. is described based on material from six streams in Paraná and Rio Grande do Sul States of Brazil. This is only the second species of Basicladia recorded from South America. The new species is distinguished based on small filaments with short and wide basal cells of upright axes. It is only the second (out of six) species that is only known with an epilithic habit and is not associated with either snail shells or turtle carapaces. Macroalgae / green algae / filamentous / subtropical / lotic systems / Brazil Résumé – Basicladia emedii sp. nov. (Cladophorales, Chlorophytes) : une nouvelle espèce épilithique d’eau douce du Brésil. Basicladia emedii sp. nov. est décrit d’après du matériel provenant de six cours d’eau de l’Etat de Paraná et Rio Grande do Sul au Brésil. C’est seulement la deuxième espèce observée en Amérique du Sud. La nouvelle espèce se distingue par sa petite taille associée à des cellules basales courtes et larges. C’est aussi la seconde espèce, sur six, qui n’est connue que comme épilithe et donc qui n’est associée ni à des coquilles de mollusques ni à des carapaces de tortues.
    [Show full text]