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Author : Dietrich Werner
Publisher : Univ of California Press
Page : 510 pages
File Size : 45,6 Mb
Release : 1977-01-01
Category : Science
ISBN : 0520034007
Author : F. E. Round,R. M. Crawford,D. G. Mann
Publisher : Cambridge University Press
Page : 766 pages
File Size : 43,8 Mb
Release : 1990-05-25
Category : Medical
ISBN : 0521363187
This book is an introduction to diatom biology. It emphasizes the cell cycle, sexual reproduction, and ontogeny. The authors have provided a system of classification with many new taxa described at the family level together with 17 new genera.
Author : Joseph Seckbach,Richard Gordon
Publisher : John Wiley & Sons
Page : 657 pages
File Size : 48,8 Mb
Release : 2019-07-01
Category : Science
ISBN : 9781119370727
The aim of this new book series (Diatoms: Biology and Applications) is to provide a comprehensive and reliable source of information on diatom biology and applications. The first book of the series, Diatoms Fundamentals & Applications, is wide ranging, starting with the contributions of amateurs and the beauty of diatoms, to details of how their shells are made, how they bend light to their advantage and ours, and major aspects of their biochemistry (photosynthesis and iron metabolism). The book then delves into the ecology of diatoms living in a wide range of habitats, and look at those few that can kill or harm us. The book concludes with a wide range of applications of diatoms, in forensics, manufacturing, medicine, biofuel and agriculture. The contributors are leading international experts on diatoms. This book is for a wide audience researchers, academics, students, and teachers of biology and related disciplines, written to both act as an introduction to diatoms and to present some of the most advanced research on them.
Author : John P. Smol,Eugene F. Stoermer
Publisher : Cambridge University Press
Page : 687 pages
File Size : 44,8 Mb
Release : 2010-09-30
Category : Science
ISBN : 9781139492621
This much revised and expanded edition provides a valuable and detailed summary of the many uses of diatoms in a wide range of applications in the environmental and earth sciences. Particular emphasis is placed on the use of diatoms in analysing ecological problems related to climate change, acidification, eutrophication, and other pollution issues. The chapters are divided into sections for easy reference, with separate sections covering indicators in different aquatic environments. A final section explores diatom use in other fields of study such as forensics, oil and gas exploration, nanotechnology, and archaeology. Sixteen new chapters have been added since the first edition, including introductory chapters on diatom biology and the numerical approaches used by diatomists. The extensive glossary has also been expanded and now includes over 1,000 detailed entries, which will help non-specialists to use the book effectively.
Author : Grethe R. Hasle,Erik E. Syvertsen,Karen A. Steidinger,Karl Tangen,Carmelo R. Tomas
Publisher : Elsevier
Page : 598 pages
File Size : 40,9 Mb
Release : 1996-01-25
Category : Electronic
ISBN : 0080534414
Identifying Marine Diatoms and Dinoflagellates is the second identification manual created from the literature developed for the Advanced International Phytoplankton Course. This version, enlarged and modified from the earlier literature, deals with the identification of marine diatoms and dinoflagellates. The data and references presented here should allow the researcher to pursue the question of valid species and how they can be verified. This volume comprises three chapters, beginning with an introductory chapter discussing the subject's historical background. The next chapter focuses on marine diatoms, providing an introduction that describes their general characteristics, life cycles, morphology and terminology, and classification. It is followed by a discussion of genera represented in marine plankton, a description of taxa, and methodology. The third and final chapter focuses on dinoflagellates, beginning with an introduction that describes their general characteristics and eukaryotic unicells. The discussion continues with terminology and morphology, identification of species, techniques for preparation of dinoflagellates for identification, common dinoflagellate synonyms, and an index of dinoflagellate taxa. This book will be of interest to practitioners in the fields of biology, zoology, and environmental protection.
Author : Vadim V. Annenkov,Joseph Seckbach,Richard Gordon
Publisher : John Wiley & Sons
Page : 452 pages
File Size : 45,8 Mb
Release : 2021-11-23
Category : Science
ISBN : 9781119487951
DIATOM MORPHOGENESIS A unique book presenting the range of silica structures formed by diatoms, theories and hypotheses of how they are made, and applications to nanotechnology by use or imitation of diatom morphogenesis. There are up to 200,000 species of diatoms, each species of these algal cells bearing an ornate, amorphous silica glass shell. The silica is structured at 7 orders of magnitude size range and is thus the most complex multiscalar solid structure known. Recent research is beginning to unravel how a single cell marshals chemical, physical, biochemical, genetic, and cytoskeletal processes to produce these single-cell marvels. The field of diatom nanotechnology is advancing as this understanding matures. Diatoms have been actively studied over the recent 10-20 years with various modern equipment, experimental and computer simulation approaches, including molecular biology, fluorescence-based methods, electron, confocal, and AFM microscopy. This has resulted in a huge amount of information but the key stages of their silica morphogenesis are still not clear. This is the time to reconsider and consolidate the work performed so far and to understand how we can go ahead. The main objective of this book is to describe the actual situation in the science of diatom morphogenesis, to specify the most important unresolved questions, and to present the corresponding hypotheses. The following areas are discussed: A tutorial chapter, with a glossary for newcomers to the field, who are often from outside of biology, let alone phycology; Diatom Morphogenesis: general issues, including symmetry and size issues; Diatom Morphogenesis: simulation, including analytical and numerical methods for description of the diatom valve shape and pore structure; Diatom Morphogenesis: physiology, biochemistry, and applications, including the relationship between taxonomy and physiology, biosilicification hypotheses, and ideas about applications of diatoms. Audience Researchers, scientists, and graduate students in the fields of phycology, general biology, marine sciences, the chemistry of silica, materials science, and ecology.
Author : Archana Tiwari,Ashok Pandey,Pau-Loke Show,Parameswaran Binod
Publisher : CRC Press
Page : 189 pages
File Size : 47,6 Mb
Release : 2023-09-14
Category : Science
ISBN : 9781000928839
This reference book covers the ecological impact and biotechnological applications of diatoms. Diatoms contribute to 40% of primary productivity in aquatic ecosystems. They have a unique biomonitoring ability and sensitivity toward different pollutants in wastewater, and are thereby a tool for ecotoxicological monitoring. The book discusses the need for newer diatom-based indices for wastewater quality analysis. It describes the nutraceutical value of the myriad compounds like omega 3 fatty acids-DHA, polysaccharides, and phenols in diatoms. It also elaborates on the challenges in sustainable diatom biorefinery. This book is meant for microbiologists, biotechnologists, and marine biologists.
Author : Janice L. Pappas
Publisher : John Wiley & Sons
Page : 548 pages
File Size : 46,5 Mb
Release : 2023-09-13
Category : Science
ISBN : 9781119749851
MATHEMATICAL MACROEVOLUTION IN DIATOM RESEARCH Buy this book to learn how to use mathematics in macroevolution research and apply mathematics to study complex biological problems. This book contains recent research in mathematical and analytical studies on diatoms. These studies reflect the complex and intricate nature of the problems being analyzed and the need to use mathematics as an aid in finding solutions. Diatoms are important components of marine food webs, the silica and carbon cycles, primary productivity, and carbon sequestration. Their uniqueness as glass-encased unicells and their presence throughout geologic history exemplifies the need to better understand such organisms. Explicating the role of diatoms in the biological world is no more urgent than their role as environmental and climate indicators, and as such, is aided by the mathematical studies in this book. The volume contains twelve original research papers as chapters. Macroevolutionary science topics covered are morphological analysis, morphospace analysis, adaptation, food web dynamics, origination-extinction and diversity, biogeography, life cycle dynamics, complexity, symmetry, and evolvability. Mathematics used in the chapters include stochastic and delay differential and partial differential equations, differential geometry, probability theory, ergodic theory, group theory, knot theory, statistical distributions, chaos theory, and combinatorics. Applied sciences used in the chapters include networks, machine learning, robotics, computer vision, image processing, pattern recognition, and dynamical systems. The volume covers a diverse range of mathematical treatments of topics in diatom research. Audience Diatom researchers, mathematical biologists, evolutionary and macroevolutionary biologists, paleontologists, paleobiologists, theoretical biologists, as well as researchers in applied mathematics, algorithm sciences, complex systems science, computational sciences, informatics, computer vision and image processing sciences, nanoscience, the biofuels industry, and applied engineering.
Author : Joseph Seckbach,Patrick Kociolek
Publisher : Springer Science & Business Media
Page : 521 pages
File Size : 46,5 Mb
Release : 2011-07-23
Category : Science
ISBN : 9789400713277
Diatom biology, genomics and ecology are becoming more relevant to the human species. While there have been recent compilations of some of the applied aspects of diatoms, and the dizzying pace of taxonomic revisions, this new volume bring us up to date on their classification, biology and ecology, as well as covering the topics of genomics and applied uses. In this collection, some of the leaders in diatom research present either new information or summarize recent research efforts on a wide range of topics, including the tree of life of diatoms, their classifications, the wide habitats and ecological spectra the group exploits, as well as the beauty of their form. This volume celebrates the diversity, emerging areas of research and fascinating ecology of the diatoms bringing this group of world-renown and emerging research leaders together. 'The Diatom World' will foster greater appreciation and research contributions on this incredibly diverse and fascinating group of organisms.
Author : Stanley A. Cohn,Kalina M. Manoylov,Richard Gordon
Publisher : John Wiley & Sons
Page : 483 pages
File Size : 47,9 Mb
Release : 2021-09-08
Category : Science
ISBN : 9781119526353
DIATOM GLIDING MOTILITY Moving photosynthetic organisms are still a great mystery for biologists and this book summarizes what is known and reports the current understanding and modeling of those complex processes. The book covers a broad range of work describing our current state of understanding on the topic, including: historic knowledge and misconceptions of motility; evolution of diatom motility; diatom ecology & physiology; cell biology and biochemistry of diatom motility, anatomy of motile diatoms; observations of diatom motile behavior; diatom competitive ability, unique forms of diatom motility as found in the genus Eunotia; and models of motility. This is the first book attempting to gather such information surrounding diatom motility into one volume focusing on this single topic. Readers will be able to gather both the current state of understanding on the potential mechanisms and ecological regulators of motility, as well as possible models and approaches used to help determine how diatoms accomplish such varied behaviors as diurnal movements, accumulation into areas of light, niche partitioning to increase species success. Given the fact that diatoms remain one of the most ecologically crucial cells in aquatic ecosystems, we hope that this volume will act as a springboard towards future research into diatom motility and even better resolution of some of the issues in motility. Audience Diatomists, phycologists, aquatic ecologists, cellular physiologists, environmental biologists, biophysicists, diatom nanotechnologists, algal ecologists, taxonomists.
Author : Nirmal Mazumder,Richard Gordon
Publisher : John Wiley & Sons
Page : 372 pages
File Size : 52,8 Mb
Release : 2022-07-06
Category : Medical
ISBN : 9781119711537
DIATOM MICROSCOPY The main goal of the book is to demonstrate the wide variety of microscopy methods being used to investigate natural and altered diatom structures. This book on Diatom Microscopy gives an introduction to the wide panoply of microscopy methods being used to investigate diatom structure and biology, marking considerable advances in recent technology including optical, fluorescence, confocal and electron microscopy, surface-enhanced Raman spectroscopy (SERS), atomic force microscopy (AFM) and spectroscopy as applied to diatoms. Each chapter includes a tutorial on a microscopy technique and reviews its applications in diatom nanotechnology and diatom research. The number of diatomists, diatom research, and their publications are increasing rapidly. Although many books have dealt with various aspects of diatom biotechnology, nanotechnology, and morphology, to our knowledge, no volume exists that summarizes advanced microscopic approaches to diatoms. Audience The intended audience is academic and industry researchers as well as graduate students working on diatoms and diatom nanotechnology, including biosensors, biomedical engineering, solar panels, batteries, drug delivery, insect control, and biofuels.
Author : Hans du Buf,Micha M Bayer
Publisher : World Scientific
Page : 328 pages
File Size : 42,7 Mb
Release : 2002-07-12
Category : Psychology
ISBN : 9789814489218
This is the first book to deal with automatic diatom identification. It provides the necessary background information concerning diatom research, useful for both diatomists and non-diatomists. It deals with the development of electronic databases, image preprocessing, automatic contour extraction, the application of existing contour and ornamentation features and the development of new ones, as well as the application of different classifiers (neural networks, decision trees, etc.). These are tested using two image sets: (i) a very difficult set of Sellaphora pupula with 6 demes and 120 images; (ii) a mixed genera set with 37 taxa and approximately 800 images. The results are excellent, and recognition rates well above 90% have been achieved on both sets. The results are compared with identification rates obtained by human experts. One chapter of the book deals with automatic image capture, i.e. microscope slide scanning at different resolutions using a motorized microscope stage, autofocusing, multifocus fusion, and particle screening to select only diatoms and to reject debris. This book is the final scientific report of the European ADIAC project (Automatic Diatom Identification and Classification), and it lists the web-sites with the created public databases and an identification demo. Contents: Introduction to ADIAC and This Book (H Du Buf & M M Bayer)Diatoms: Organism and Image (D G Mann)Diatom Applications (R J Telford et al.)ADIAC Imaging Techniques and Databases (M M Bayer & S Juggins)Human Error and Quality Assurance in Diatom Analysis (M G Kelly et al.)Contour Extraction (S Fischer et al.)Identification Using Classical and New Features in Combination with Decision Tree Ensembles (S Fischer & H Bunke)Identification by Curvature of Convex and Concave Segments (R E Loke & H du Buf)Identification by Contour Profiling and Legendre Polynomials (A Ciobanu & H du Buf)Identification by Gabor Features (L M Santos & H du Buf)Identification by Mathematical Morphology (M H F Wilkinson et al.)Mixed-Method Identifications (M A Westenberg & J B T M Roerdink)Automatic Slide Scanning (J L Pech-Pacheco & G Cristóbal)ADIAC Achievements and Future Work (H du Buf & M M Bayer) Readership: Researchers in pattern recognition and computer vision, researchers working with diatoms, and psychologists. Keywords:
Author : Dusan Losic
Publisher : Royal Society of Chemistry
Page : 286 pages
File Size : 50,8 Mb
Release : 2018
Category : Science
ISBN : 9781782629320
Diatoms are single cell algae composed of silica. They represent one of the most outstanding natural materials with exceptional structural, mechanical, optical, photonic and chemical properties optimized through millions of years of evolution. The unique nano and micro silica structures of the material combined with its availability as a low cost mineral from diatomaceous earth are attractive for solving many of today's environmental, energy and health problems. Diatom Nanotechnology provides a comprehensive overview of the material and its uses. The first part of the book looks at the distinctive porous silica structure of diatoms, the mechanism of their formation and their properties. Individual chapters then explore the broad range of their applications in nanotechnology including nanofabrication, optical biosensors, gas sensors, water purifications, photonics, drug delivery, batteries, solar cells, supercapacitors, new adsorbents and composite materials. With contributions from leading international experts, the book represents an important resource for academics, researchers, industry professionals, postgraduate and advanced level undergraduate students providing them with the latest developments on this emerging and dynamic field.
Author : Gabriel Cristóbal,Saúl Blanco,Gloria Bueno
Publisher : Springer Nature
Page : 294 pages
File Size : 47,8 Mb
Release : 2020-05-28
Category : Science
ISBN : 9783030392123
High-resolution images of phytoplankton cells such as diatoms or desmids, which are useful for monitoring water quality, can now be provided by digital microscopes, facilitating the automated analysis and identification of specimens. Conventional approaches are based on optical microscopy; however, manual image analysis is impractical due to the huge diversity of this group of microalgae and its great morphological plasticity. As such, there is a need for automated recognition techniques for diagnostic tools (e.g. environmental monitoring networks, early warning systems) to improve the management of water resources and decision-making processes. Describing the entire workflow of a bioindicator system, from capture, analysis and identification to the determination of quality indices, this book provides insights into the current state-of-the-art in automatic identification systems in microscopy.
Author : Antonio Silvestro
Publisher : Antonio Silvestro
Page : 35 pages
File Size : 43,5 Mb
Release : 2019-06-15
Category : Science
ISBN : 9781074162368
Research stimulated by curiosity brings out new pieces that make up the puzzle oflife and invention provides the tools to assemble and interpret it. The IndustrialRevolution of past centuries has brought innovations not accompanied by a farsightedvision of the consequences that are manifesting in this globalized twenty-firstcentury, particularly with an increase in energy demand and global warming. Theemerging biotechnology revolution, which applies technology to biological systems,could solve these problems without further deleterious effects if driven bysustainable development. Research and development institutes, subsidized bygovernments, are looking for renewable and sustainable energy resources that wouldreplace polluting fossil fuels nearly depleted.Recently the investigation of the marine microalgae's potential in biotechnologicalapplications is increasing by the realization that the ocean is a relatively untappedsource of energy biomass and novel biomolecules. Microalgae mainly represent thelast generation suitable feedstock for the transport sector, but due to theirbiochemical versatility are useful also for many others industrial fields such asmedical, pharmaceutical, food and cosmetic. Nowadays, biofuel production frommicroalgae biomass is still in progress; the efficiency of each step during the wholeprocess, from culturing to refining, needs to be improved to get yield economicallyreasonable. Coupling each other different industrial applications could lead toovercome the substantial investments with proper earnings making, hopefully in thenext future, this living energy source lucrative, therefore commercially feasible.In the last decades, researchers are focusing their attention on Diatoms, a taxon ofmicroalgae characterized by silica walls derived from secondary symbiotic event.Diatoms are affected by seasonal exponential growth called blooms that place themat the base of the oceans food chain, permit about 40% of atmospheric CO2 fixationand significant influence the biogeochemical cycle of the macronutrients: silicon(Si), nitrogen (N), phosphorus (P). This microalgae's group is a promising candidatefor biodiesel production because of their great lipid accumulation like reserve storagecompound mainly in the form of triacylglycerols (TAG), converted into biodieselthrough a reaction of trans-esterification.The aim of this thesis were the evaluation of the growth curves and biochemicalcomposition (lipids, carbohydrates and proteins) of the marine diatom CyclotellaCryptica grown in batch system by administering the average of the standard mediumf/2 daily or only the day of the inoculation. The growth curve were obtained bymonitoring daily the cellular density (cells/mL) with an optical microscope combinedwith a Bürker chamber. The biological macromolecules quantification, lipids,carbohydrates, and proteins were realized by Folch modified – MTBE, Dubois andLowry methods, respectively. Furthermore, the lipids composition werecharacterized both by Thin Layer Chromatography (TLC) and Nuclear MagneticResonance (NMR)-Eretic method.The results shows that the daily supply of the medium f/2 induce high cell density(2250000±77567 cells/mL) and biomass dry weight (1441.79±148.35 mg/L) thatmainly consist of proteins (88%) and lipid fraction is predominantly composed byphospholipids (PL). Conversely, administering the medium f/2 only the first day letthe diatoms in a starvation condition defined by a little cell density (192222 ± 26851)and biomass dry weight (205.90±22.24 mg/L) with a significant increase in therelative amount of storage compounds: carbohydrates (19%) and lipid (33%)predominantly in form of triacylglycerols (TAG).Typically, microalgae are growth at first in laboratories under strict controlledcondition in closed photobioreactors and then transferred to open-pounds for largescaleproduction.