Download or read book Microbial Ecology of Phototrophic Biofilms written by Guus Roeselers and published by Guus Roeselers. This book was released on 2007 with total page 120 pages. Available in PDF, EPUB and Kindle. Book excerpt: Biofilms are layered structures of microbial cells and an extracellular matrix of polymeric substances, associated with surfaces and interfaces. Biofilms trap nutrients for growth of the enclosed microbial community and help prevent detachment of cells from surfaces in flowing systems. Phototrophic biofilms can best be defined as surface attached microbial communities mainly driven by light as the energy source with a photosynthesizing component clearly present. Eukaryotic algae and cyanobacteria generate energy and reduce carbon dioxide, providing organic substrates and oxygen. The photosynthetic activity fuels processes and conversions in the total biofilm community, including the heterotrophic fraction. This thesis starts with a brief introduction in the ecology of phototrophic biofilms and discusses their actual and potential applications in wastewater treatment, bioremediation, fish-feed production, biohydrogen production, and soil improvement and their role in biofouling. The next chapter describes the diversity of phototrophic bacteria in hot spring microbial mats found on the east coast of Greenland. In this study we utilized a polyphasic approach using a combination of isolation techniques, microscopic observation of morphological features, and cultivation-independent molecular methods. We observed a relationship between the cyanobacterial community composition and the in situ temperatures of different microbial mat parts. Chapter 4 focuses on the successional changes in community composition of freshwater phototrophic biofilms growing under different light intensities. Our results suggest that surface colonization by heterotrophic pioneers facilitates the development of phototrophic biofilms. In Chapter 5 we compared the community composition of phototrophic biofilms cultivated in three microcosm systems operated under identical conditions but placed in different laboratories. Denaturing Gradient Gel Electrophoresis (DGGE) analysis of both 16S and 18S rRNA gene fragments showed that the communities developed differently in terms of species richness and community composition. Chapter 6 demonstrates that nifD gene sequences, coding for a nitrogenase subunit, can be used to detect and identify diazotrophic cyanobacteria in natural communities. PCR products generated using primers homologous to conserved regions in the cyanobacterial nifD genes were subjected to DGGE and clone library analysis in order to determine the genetic diversity of diazotrophic cyanobacteria in environmental samples. In the last chapter we describe the development of PCR primers targeting conserved regions within the cyanobacterial hupS gene family. This gene is involved in the hydrogen metabolism of diazotrophic microorganisms. We analyzed hupS diversity and transcription in cultivated phototrophic biofilms by the direct retrieval and analysis of mRNA that was reverse transcribed, amplified with hupS specific primers, and cloned. Overall, the community composition and species richness of phototrophic biofilms was shown to be highly variable. Cultivation-independent molecular methods proved very useful to study diversity and function in phototrophic biofilms.
Download or read book Biodeterioration and Preservation in Art Archaeology and Architecture written by Ralph Mitchell and published by Archetype Publications. This book was released on 2018 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The world's monuments, art objects and archeology are at increasing risk of deterioration from environmental threats e.g. climate change, air pollution, and tourism. Microorganisms play a central role in these deterioration processes. They grow both on the surface and in the interiors of many materials. Our understanding of the role that the microbial community plays in these activities has improved significantly in recent years and a deeper understanding of the mechanisms of degradation is now possible. In addition, new tools have opened the door to the use of bacteria as protective agents. In this book, contributors have focused on the essential role that biodeterioration plays in both the deterioration and preservation of a wide range of materials. The volume brings together recent research by conservation microbiologists working in diverse environments. In addition, papers are included on the effects of microbial biofilms and climate change on the biodeterioration process. It is hoped that this book will prove helpful to microbiologists, chemists, and other scientists working in the field of conservation. It should also be useful to practicing conservators, and individuals in public policy concerned with the protection of our world's cultural heritage treasures. Contents: SECTION I - THE IMPACT OF THE ENVIRONMENT ON BIODETERIORATION AND PRESERVATION OF HERITAGE MATERIALS The Importance of Microbial Biofilms in Deterioration of Heritage Materials - Marc W. Mittleman Effects of Climate Change on the Biodeterioration of Historic Materials - Peter Brimblecombe SECTION II - BIODETERIORATION AND PRESERVATION PROCESSES Microbial Processes Involved in Deterioration of Paper and Parchment - Flavia Pinzari Biodeterioration of Photographic and Cinematographic Materials: Methods of Investigation - Domenico Pangallo Biodeterioration of easel paintings - An overview - A. Teresa Caldeira, Cátia Salvador, Tânia Rosado, and António Candeias Modern materials and contemporary art - Francesca Cappitelli and Federica Villa Use of dyes as a method to control textile biodeterioration - Barbara Blyskal Biodeterioration of paintings in caves, catacombs, and other hypogean sites - Clara Urzi, Laura Bruno, and Filomena De Leo Limestone Biodeterioration: Examples from Portugal - A.C. Pinheiro, N. Mesquita, and António Portugal Reasons for Removing Biological Materials from Calcareous Stone Monuments - Margaret Breuker and Joannie Bottkol.
Download or read book Microbial Sediments written by Robert E. Riding and published by Springer Science & Business Media. This book was released on 2013-06-29 with total page 344 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume provides a comprehensive overview of the rapidly developing field of microbial sediments, featuring excellent artwork. It contains authoritative and stimulating contributions by distinguished authors that cover the field and set the scene for future advances.
Download or read book Microbial Biofilms written by Gavin Lear and published by . This book was released on 2012 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Microbial Ecology of the Oceans written by Josep M. Gasol and published by John Wiley & Sons. This book was released on 2018-01-31 with total page 663 pages. Available in PDF, EPUB and Kindle. Book excerpt: The newly revised and updated third edition of the bestselling book on microbial ecology in the oceans The third edition of Microbial Ecology of the Oceans features new topics, as well as different approaches to subjects dealt with in previous editions. The book starts out with a general introduction to the changes in the field, as well as looking at the prospects for the coming years. Chapters cover ecology, diversity, and function of microbes, and of microbial genes in the ocean. The biology and ecology of some model organisms, and how we can model the whole of the marine microbes, are dealt with, and some of the trophic roles that have changed in the last years are discussed. Finally, the role of microbes in the oceanic P cycle are presented. Microbial Ecology of the Oceans, Third Edition offers chapters on The Evolution of Microbial Ecology of the Ocean; Marine Microbial Diversity as Seen by High Throughput Sequencing; Ecological Significance of Microbial Trophic Mixing in the Oligotrophic Ocean; Metatranscritomics and Metaproteomics; Advances in Microbial Ecology from Model Marine Bacteria; Marine Microbes and Nonliving Organic Matter; Microbial Ecology and Biogeochemistry of Oxygen-Deficient Water Columns; The Ocean’s Microscale; Ecological Genomics of Marine Viruses; Microbial Physiological Ecology of The Marine Phosphorus Cycle; Phytoplankton Functional Types; and more. A new and updated edition of a key book in aquatic microbial ecology Includes widely used methodological approaches Fully describes the structure of the microbial ecosystem, discussing in particular the sources of carbon for microbial growth Offers theoretical interpretations of subtropical plankton biogeography Microbial Ecology of the Oceans is an ideal text for advanced undergraduates, beginning graduate students, and colleagues from other fields wishing to learn about microbes and the processes they mediate in marine systems.
Download or read book Microbial Extracellular Polymeric Substances written by Jost Wingender and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 266 pages. Available in PDF, EPUB and Kindle. Book excerpt: Microbial extracellular polymeric substances (EPS) are the key components for the aggregation of microorganisms in biofilms, flocs and sludge. They are composed of polysaccharides, proteins, nucleic acids, lipids and other biological macromolecules. EPS provide a highly hydrated gel matrix in which microbial cells can establish stable synergistic consortia. Cohesion and adhesion as well as morphology, structure, biological function and other properties such as mechanical stability, diffusion, sorption and optical properties of microbial aggregates are determined by the EPS matrix. Also, the protection of biofilm organisms against biocides is attributed to the EPS. Their matrix allows phase separation in biofiltration and is also important for the degradation of particulate material which is of great importance for the self purification processes in surface waters and for waste water treatment.
Download or read book Understanding Microbial Biofilms written by Surajit Das and published by Elsevier. This book was released on 2022-10-27 with total page 774 pages. Available in PDF, EPUB and Kindle. Book excerpt: **Selected for Doody's Core Titles® 2024 in Microbiology**Understanding Microbial Biofilms: Fundamentals to Applications focuses on the microbial biofilms of different environments. The book provides a comprehensive overview of the fundamental aspects of microbial biofilms, their existence in nature, their significance, and the different clinical and environmental problems associated with them. The book covers both the fundamentals and applications of microbial biofilms, with chapters on the introduction to the microbial community and its architecture, physiology, mechanisms and imaging of biofilms in nature and fungal, algal, and bacillus biofilm control. In addition, the book highlights the molecular and biochemical aspects of bacterial biofilms, providing a compilation of chapters on the bacterial community and communication from different environments. Finally, the book covers recent advancements in various aspects of microbial biofilms including the chapters on their biotechnological applications. All the chapters are written by experts who have been working on different aspects of microbial biofilms. - Illustrates fundamental aspects surrounding microbial biofilms, along with recent advancements - Provides an overview on the principal aspects of biofilms, i.e., formation, regulation, distribution, control, and application - Updates on the progress on biofilm regulation through 'omics' - Serves as a classical manual for all researchers, academicians, and students who would want complete insights on biofilms in a single resource - Covers all recent advancements and amendments on microbial biofilms
Download or read book Handbook of Metal Microbe Interactions and Bioremediation written by Surajit Das and published by CRC Press. This book was released on 2017-04-07 with total page 813 pages. Available in PDF, EPUB and Kindle. Book excerpt: Around the World, metal pollution is a major problem. Conventional practices of toxic metal removal can be ineffective and/or expensive, delaying and exacerbating the crisis. Those communities dealing with contamination must be aware of the fundamentals advances of microbe-mediated metal removal practices because these methods can be easily used and require less remedial intervention. This book describes innovations and efficient applications for metal bioremediation for environments polluted by metal contaminates.
Download or read book The Conservation of Subterranean Cultural Heritage written by C. Saiz-Jimenez and published by CRC Press. This book was released on 2014-10-24 with total page 329 pages. Available in PDF, EPUB and Kindle. Book excerpt: This proceedings volume contains selected papers presented at the Workshop on the Conservation of the Subterranean Cultural Heritage, held 25-27 March 2014, in Seville, Spain. The workshop was organized by the Spanish Network of Science and Technology for the Conservation of Cultural Heritage (TechnoHeritage). Contributions cover the following fields: archaeology, history, conservation, maintenance and restoration, architectural sciences and engineering.
Download or read book Algae and Environmental Sustainability written by Bhaskar Singh and published by Springer. This book was released on 2015-12-22 with total page 194 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents the dynamic role of algae in a sustainable environment. Two major aspects, namely bioenergy and bioremediation, have been elaborated in various chapter contributed by scientists and teachers from different geographical areas throughout the world. Algal biofuels is an emerging area of equal interest to researchers, industries, and policy makers working or focusing on alternative (i.e. renewable) fuels. Algae have been an area of interest due to their wide range of applications. Over the last 5 decades, eukaryotic algae have been used in the aquaculture industry as feed for invertebrates, providing a rich source of antioxidants, dietary fiber, minerals and protein. More recently, there has been a focus on the use of algal biomass in the development of alternative fuels. The extraction of oil from algae has been widely explored as a much more viable feedstock than plant-based oils in large-scale fuel production. using algae as feedstock has the advantages that it doesn’t require arable land and that wastewater can be used as a source of nutrients in their culture. The multifunctional approach of algae includes pollution remediation, carbon sequestration, biofuels production, and delivery of value-added products. However, there are still some obstacles that need to be overcome to make their use as potential feedstock for biofuels techno-economically feasible. In order to maintain the sustainability aspect of algal biofuels, various aspects have to be studied and critically analyzed to assess the long-term sustainability of algal derived biofuels. This book discusses the role of algae as a promising future feedstock for biofuels. They are known to sequester carbon in much larger amounts than plants and as such the book also describes their phycoremediation potential for conventional as well as emerging contaminants. It describes the role of anaerobic digestion in algal biorefineries; bioreactions and process parameters; biogas recovery and reuse. The role of algal biofilm based technology in wastewater treatment and transforming waste into bio-products is discussed, and remediation of sewage water through algae is assessed. The book also describes the production of biohydrogen, bio-oil, biodiesel; and the major bottlenecks in their usage. The emerging characterization techniques of these biofuels (bio-oil and biodiesel) are described, as are the decolorizing potential of algae and the genetic engineering techniques that could enhance the production of lipids in algae. Other aspects of the book include the role of remote sensing technology in the monitoring of algae and a life cycle assessment of algal biofuels.
Download or read book The Perfect Slime written by Hans-Curt Flemming and published by IWA Publishing. This book was released on 2016-09-15 with total page 336 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Perfect Slime presents the latest state of knowledge and all aspects of the Extracellular Polymeric Substances, (EPS) matrix – from the ecological and health to the antifouling perspectives. The book brings together all the current material in order to expand our understanding of the functions, properties and characteristics of the matrix as well as the possibilities to strengthen or weaken it. The EPS matrix represents the immediate environment in which biofilm organisms live. From their point of view, this matrix has paramount advantages. It allows them to stay together for extended periods and form synergistic microconsortia, it retains extracellular enzymes and turns the matrix into an external digestion system and it is a universal recycling yard, it protects them against desiccation, it allows for intense communication and represents a huge genetic archive. They can remodel their matrix, break free and eventually, they can use it as a nutrient source. The EPS matrix can be considered as one of the emergent properties of biofilms and are a major reason for the success of this form of life. Nevertheless, they have been termed the “black matter of biofilms” for good reasons. First of all: the isolation methods define the results. In most cases, only water soluble EPS components are investigated; insoluble ones such as cellulose or amyloids are much less included. In particular in environmental biofilms with many species, it is difficult to impossible isolate, separate the various EPS molecules they are encased in and to define which species produced which EPS. The regulation and the factors which trigger or inhibit EPS production are still very poorly understood. Furthermore: bacteria are not the only microorganisms to produce EPS. Archaea, Fungi and algae can also form EPS. This book investigates the questions, What is their composition, function, dynamics and regulation? What do they all have in common?
Download or read book Productive Biofilms written by Kai Muffler and published by Springer. This book was released on 2014-10-15 with total page 264 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book review series presents current trends in modern biotechnology. The aim is to cover all aspects of this interdisciplinary technology where knowledge, methods and expertise are required from chemistry, biochemistry, microbiology, genetics, chemical engineering and computer science. Volumes are organized topically and provide a comprehensive discussion of developments in the respective field over the past 3-5 years. The series also discusses new discoveries and applications. Special volumes are dedicated to selected topics which focus on new biotechnological products and new processes for their synthesis and purification. In general, special volumes are edited by well-known guest editors. The series editor and publisher will however always be pleased to receive suggestions and supplementary information. Manuscripts are accepted in English.
Download or read book Issues in Ecosystem Ecology 2011 Edition written by and published by ScholarlyEditions. This book was released on 2012-01-09 with total page 1999 pages. Available in PDF, EPUB and Kindle. Book excerpt: Issues in Ecosystem Ecology / 2011 Edition is a ScholarlyEditions™ eBook that delivers timely, authoritative, and comprehensive information about Ecosystem Ecology. The editors have built Issues in Ecosystem Ecology: 2011 Edition on the vast information databases of ScholarlyNews.™ You can expect the information about Ecosystem Ecology in this eBook to be deeper than what you can access anywhere else, as well as consistently reliable, authoritative, informed, and relevant. The content of Issues in Ecosystem Ecology: 2011 Edition has been produced by the world’s leading scientists, engineers, analysts, research institutions, and companies. All of the content is from peer-reviewed sources, and all of it is written, assembled, and edited by the editors at ScholarlyEditions™ and available exclusively from us. You now have a source you can cite with authority, confidence, and credibility. More information is available at http://www.ScholarlyEditions.com/.
Download or read book Microbial Biofilms written by Mahmoud Ghannoum and published by John Wiley & Sons. This book was released on 2015-10-01 with total page 636 pages. Available in PDF, EPUB and Kindle. Book excerpt: An examination of the research and translational application to prevent and treat biofilm-associated diseases In the decade since the first edition of Microbial Biofilms was published, the interest in this field has expanded, spurring breakthrough research that has advanced the treatment of biofilm-associated diseases. This second edition takes the reader on an exciting, extensive review of bacterial and fungal biofilms, ranging from basic molecular interactions to innovative therapies, with particular emphasis on the division of labor in biofilms, new approaches to combat the threat of microbial biofilms, and how biofilms evade the host defense. Chapters written by established investigators cover recent findings, and contributions from investigators new to the field provide unique and fresh insights. Specifically, Microbial Biofilms provides state-of-the-art research in the field of bacterial and fungal biofilms detailed descriptions of the in vitro and in vivo models available to evaluate microbial biofilms future areas of research and their translational and clinical applications Microbial Biofilms is a useful reference for researchers and clinicians. It will also provide insight in the dynamic field of microbial biofilms for graduate and postgraduate students.
Download or read book Anoxygenic Photosynthetic Bacteria written by R.E. Blankenship and published by Springer Science & Business Media. This book was released on 2006-04-11 with total page 1333 pages. Available in PDF, EPUB and Kindle. Book excerpt: Anoxygenic Photosynthetic Bacteria is a comprehensive volume describing all aspects of non-oxygen-evolving photosynthetic bacteria. The 62 chapters are organized into themes of: Taxonomy, physiology and ecology; Molecular structure of pigments and cofactors; Membrane and cell wall structure: Antenna structure and function; Reaction center structure and electron/proton pathways; Cyclic electron transfer; Metabolic processes; Genetics; Regulation of gene expression, and applications. The chapters have all been written by leading experts and present in detail the current understanding of these versatile microorganisms. The book is intended for use by advanced undergraduate and graduate students and senior researchers in the areas of microbiology, genetics, biochemistry, biophysics and biotechnology.
Download or read book Freshwater Microbiology written by David C. Sigee and published by John Wiley & Sons. This book was released on 2005-09-27 with total page 516 pages. Available in PDF, EPUB and Kindle. Book excerpt: This unique textbook takes a broad look at the rapidly expanding field of freshwater microbiology. Concentrating on the interactions between viruses, bacteria, algae, fungi and micro-invertebrates, the book gives a wide biological appeal. Alongside conventional aspects such as phytoplankton characterisation, seasonal changes and nutrient cycles, the title focuses on the dynamic and applied aspects that are not covered within the current textbooks in the field. Complete coverage of all fresh water biota from viruses to invertebrates Unique focus on microbial interactions including coverage of biofilms, important communities on all exposed rivers and lakes. New information on molecular and microscopical techniques including a study of gene exchange between bacteria in the freshwater environment. Unique emphasis on the applied aspects of freshwater microbiology with particular emphasis on biodegradation and the causes and remediation of eutrophication and algal blooms.
Download or read book Fundamentals of Biofilm Research written by Zbigniew Lewandowski and published by CRC Press. This book was released on 2013-12-16 with total page 638 pages. Available in PDF, EPUB and Kindle. Book excerpt: The six years that have passed since the publication of the first edition have brought significant advances in both biofilm research and biofilm engineering, which have matured to the extent that biofilm-based technologies are now being designed and implemented. As a result, many chapters have been updated and expanded with the addition of sections
