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Book Spatial and Temporal Patterns of Diversity and Community Composition in Marine Molluscan Microbiomes

Download or read book Spatial and Temporal Patterns of Diversity and Community Composition in Marine Molluscan Microbiomes written by Alexander Theodore Neu and published by . This book was released on 2021 with total page 186 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ecological communities have been shown to vary in some predictable ways through space, time, and along environmental gradients, suggesting there may be underlying "rules" in ecology which govern these patterns and processes. However, nearly all our knowledge of these trends comes from studies of large eukaryotes such as plants and animals, and we know very little about how these eukaryotic patterns compare to those of bacteria and archaea, the most dominant life forms on the planet. The goal of this dissertation is to determine whether ecological patterns that are evident in plants and animals are also applicable to host-associated microbes. First, I investigated whether these microbes exhibit large-scale spatial trends in diversity and community composition that are concordant with those of their eukaryotic hosts. Specifically, I investigated changes in community composition across a marine biogeographic boundary and changes in diversity along a latitudinal transect. Results showed that microbiome compositions varied significantly between geographic sites, but that the identity of the host species played a greater role than geography in determining community composition. Further, microbes associated with the California mussel, Mytilus californianus, did not show a traditional latitudinal diversity gradient, and latitudinal diversity patterns varied based on microbial group and host body site. Next, I investigated whether host-associated microbial communities vary over time and in response to environmental change in similar ways to their eukaryotic hosts. I found that over an 11-year period, and in response to environmental change, microbial communities of the bean clam, Donax gouldii, significantly differed in composition, but not in richness. Further, I found that microbes did not regularly diverge in concordance with their intertidal gastropod hosts in the ~3.5 million years since the closure of the Isthmus of Panama, though this was dependent on the host taxa and the body site from which the microbes were collected. Finally, I investigated whether current methodologies for determining the core microbiome are guided by ecological and evolutionary principles and identify critical areas for future research. Overall, this dissertation shows that large-scale patterns in host-associated microbial taxa are often context-dependent and distinct from those of their hosts.

Book Temporal and Spatial Patterns in Marine Cyanophage Communities

Download or read book Temporal and Spatial Patterns in Marine Cyanophage Communities written by China Hanson and published by . This book was released on 2012 with total page 173 pages. Available in PDF, EPUB and Kindle. Book excerpt: Biogeography, the study of species distributions over space and time, provides valuable information on the factors controlling biodiversity. Microorganisms are now widely recognized as exhibiting biogeographic patterns similar to larger organisms. However, the biogeography of viruses has been slower to develop despite their important role in ecosystems. After first proposing a theoretical framework with which to study microbial biogeographic patterns, the goal of this dissertation was to demonstrate whether an ecologically important subset of viruses - cyanophages, or viruses that infect the marine cyanobacterium, Synechococcus - also exhibit such patterns. I isolated cyanophages every month for three years in Southern California, and at one point in time at two additional locations in the coastal U.S.I then taxonomically characterized nearly 4,000 isolates by amplifying and sequencing a cyanophage-specific marker gene in each isolate. To more accurately detect possible spatial patterns, I also characterized a subset of isolates for their host range phenotypes, which provided additional biological variability than could be assessed by the marker gene alone. I found that coastal marine cyanophage communities are both temporally dynamic as well as spatially structured. Within the regional scale of Southern California, these communities were strikingly seasonal - that is, their composition changed in tune with the seasons in an annually recurring manner. I found that this seasonal pattern over three years was primarily related to forecasted UV irradiance, with UV explaining nearly 33% of the temporal variation in cyanophage composition. Moreover, I found that at larger spatial scales, cyanophage community composition was also highly structured in space, both taxonomically and phenotypically. These results provide strong evidence that phages exhibit spatial and temporal biogeographic patterns. Because phages are susceptible to degradation by light, the results further suggest that their distributional patterns may be partially driven by selective environmental factors, namely UV radiation, acting directly on phages; rather than solely being influenced by the presence of susceptible hosts. The library of isolates collected here offers a unique opportunity to test this hypothesis. Overall, this work adds to the growing evidence that all microbes, including phages, exhibit biogeographic patterns that are in large part driven by environmental selection.

Book Microbes Among Marine Giants

Download or read book Microbes Among Marine Giants written by and published by . This book was released on 2018 with total page 171 pages. Available in PDF, EPUB and Kindle. Book excerpt: Kelp forest ecosystems are distributed on the rocky reefs of coastal regions worldwide. Kelps (order Laminariales) are a diverse group of brown macroalgae containing numerous species including giant kelp, Macrocystis pyrifera. The giant kelp dominates the kelp forests of southern California, engineering complex three-dimensional habitat which provides foundational shelter, nursery, and nutrients to marine organisms including invertebrates, fish, and marine mammals. While the kelp forests of southern California are well-regarded for their ecological and economic importance, traditional ecological surveys have ignored the most abundant fraction within the ecosystem - microbes. Microbes, including bacteria, archaea, and micro-eukaryotes, are present on all submerged surfaces in marine ecosystems, including microbiomes on macroorganisms. Microbes serve key ecological roles, including cycling of nutrients such as carbon and nitrogen to higher trophic levels within the ecosystem. Host-associated microbes have a symbiotic relationship with the host, providing environmentally-limited nutrients and protection from pathogen invasion in exchange for settlement substrate and host-derived metabolic exudates. Despite the known importance of microbes in marine ecosystems, microbes are absent from classic ecological models describing the top-down and bottom-up regulating forces structuring kelp populations. Thus, for my dissertation I aimed to address the lack of knowledge on the microbial ecology of southern California kelp forests, including the interactions between the predominant macroalgae and the associated microbiomes. In Chapter 1, I established a baseline description of the taxonomic structure and functional potential of microbial communities residing within the Macrocystis pyrifera-dominated kelp forest of Point Loma, CA, and identified sources of variation in microbiome profiles. The Point Loma kelp forest is subject to fluctuations in environmental conditions resulting from seasonality and stratification, which has an influence on kelp forest productivity. However, the potential direct and indirect effects of altered kelp forest environmental conditions on the microbial community structure and function has yet to be described, and as such I aimed to address this for Chapter 1. I sampled microbiomes from both the M. pyrifera biofilm and the adjacent water column seasonally over a three year investigation (2013-2016). I described the microbiomes in great depth using culture-independent whole genome shotgun metagenomics, and assessed the spatial and temporal variability in microbiome composition, function, and diversity. The microbiomes of the kelp and water were distinct in both taxonomic composition and functional potential. Kelp microbiomes remained stable across vertical depth, did not change significantly across season, and were not influenced by biophysical measurements of the surrounding environmental conditions. In contrast, the water-associated microbiomes varied significantly across depth with distinct community profiles above and below the thermocline stratification, showed significant changes across season, and seasonal changes within microbiome structure were strongly correlated with biophysical measurements of kelp forest productivity. Overall, my results showed that while free-living microbiomes were structured by the surrounding environmental conditions, host factors outweighed environmental factors in structuring hostassociated microbiomes. In Chapter 2, I examined the potential shifts in the baseline kelp forest microbiomes resulting from disturbance caused by the spread of an invasive alga, and the potential microbial influence in the alga's invasion strategy. This investigation took place at Santa Catalina Island within the Channel Islands 40 km offshore southern California, throughout the progression of the species invasion (2014-2018). Catalina Island has historically boasted dense populations of the native alga Macrocystis pyrifera, but has undergone disturbance due to the invasion and spread of invasive alga, Sargassum horneri. Invasive species cause significant alterations to ecosystems with both physical and chemical influences which deter and inhibit recovery of native species; however, whether there is a microbial influence in the invasion strategy of alga S. horneri is unknown. First, I described the microbiome of the invasive S. horneri and compared it to the native M. pyrifera, and found the microbiomes of the two macroalgal species to be distinct; specifically, the S. horneri microbiome was enriched in potentially pathogenic Vibrios. Next, I identified the potential for S. horneri presence to induce changes in the surrounding microbiomes. In 2018 as the native alga M. pyrifera was attempting to recover from disturbance, M. pyrifera and S. horneri existed in an interface at some sites. Where the two were in direct contact, I observed evidence of tissue bleaching and deterioration of the native alga, and investigated whether this detriment was a direct result of microbial pathogens. I did not find evidence of S. horneri microbiome inoculation onto the adjacent M. pyrifera; rather, the bleached M. pyrifera showed dysbiosis where the microbiome was lost completely compared to healthy M. pyrifera individuals nearby. However, I did find evidence of S. horneri microbiome inoculation onto the benthic substrate directly below the invasive alga, which resulted in an enrichment of Vibrios compared to the microbiome from benthic substrate beneath native M. pyrifera, and the enrichment of Vibrios on the benthic substrate occurred concurrently with a lack of native algal recovery at those locations. My findings suggest that the invasive species S. horneri has altered the baseline microbiome structure in the kelp forest, and the induced microbial changes may have an ongoing influence on the native species as they attempt to recover from disturbance. In Chapter 3, I investigated the microbial influence on a key stage of recruitment of the giant kelp, Macrocystis pyrifera. Macroalgae, including kelps, rely on recruitment processes to maintain adult populations and recover from disturbances. During kelp recruitment processes, microscopic propagules are released into the kelp forest water column where they are suspended until settlement onto the benthic substrate. Microscopic propagules are highly susceptible to abiotic conditions including UV irradiation, temperature, and nutrients, and biotic conditions including grazing. However, the influence of microbes on kelp propagule success has not been widely studied. Given that microbes are abundant in marine ecosystems (106 cells per ml of seawater) and are present on every submerged surface, microbes are likely to interact with kelp propagules during recruitment processes. For this investigation I reared M. pyrifera microscopic propagules in laboratory microcosms and exposed them to environmentally-sourced microbial communities within treatments. First, I investigated whether the presence of microbes influenced M. pyrifera propagules, and found that removing microbes in seawater increased propagule recruitment success. I then assessed the propagule success when exposed to a nearshore (Point Loma, CA) microbial community compared to an offshore (Santa Catalina Island, CA) microbial community, at multiple levels of microbial abundance. At the time the experiment was conducted, Catalina Island fostered a pristine kelp forest with lower anthropogenic influence compared to the nearshore Point Loma kelp forest. The nearshore (Point Loma) microbial community treatments yielded similar results to the first experiment, where removing microbes resulted in higher kelp propagule success. In contrast, kelp propagules exposed to offshore (Catalina) microbes had the greatest success when microbes were present at intermediate abundances, rather than removed completely. In both treatments, a microbialization of the seawater resulted in observed morphological detriment to kelp propagules. This study suggests that kelp forest microbes have an influence on a key stage of kelp recruitment, and the composition of the microbial community is important in recruitment success. Collectively, my dissertation shows that microbes influence kelp forest ecosystem dynamics and must be incorporated into future population and community models for a more holistic description of the ecosystem.

Book Investigating Bacterial Community Structure Over Temporal and Spatial Scales in the Northwest Atlantic Ocean

Download or read book Investigating Bacterial Community Structure Over Temporal and Spatial Scales in the Northwest Atlantic Ocean written by Jackie Zorz and published by . This book was released on 2017 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Bacteria are important members of every marine ecosystem and the composition of their communities has implications for global biogeochemical cycling. The Northwest Atlantic Ocean is an ecologically and economically significant region that exhibits wide ranges in physiochemical parameters that vary seasonally. In this thesis the bacterial community structure of two areas within the Northwest Atlantic Ocean, the Scotian Shelf and the Bedford Basin, were analyzed using 16S rRNA gene sequencing. The Scotian Shelf was analyzed spatially over two time points. Environmental parameters of the region, seasonality, and depth were found to heavily influence community structure. In the Bedford Basin, a weekly bacterial time series was established and the first year of data from the deepest samples were analyzed. The deep basin exhibited seasonal patterns with respect to community similarity, diversity, and composition. Overall, these datasets provide novel information regarding community composition and drivers of community shifts in this region.

Book Dimensions of Microbial Biodiversity in the North Pacific Subtropical Gyre

Download or read book Dimensions of Microbial Biodiversity in the North Pacific Subtropical Gyre written by Jessica A. Bryant and published by . This book was released on 2017 with total page 233 pages. Available in PDF, EPUB and Kindle. Book excerpt: Microorganisms support all life in the oceans and are fundamental to maintaining a habitable biosphere on Earth. However an understanding of their taxonomic and functional distributions across space and time are just beginning to emerge and numerous niches within the marine environment are still awaiting exploration. The motivation for this thesis is to improve our understanding of distributions of microbes and their metabolic potential at Station ALOHA, a long-term study site representative of the North Pacific Subtropical Gyre (NPSG). We observed changes in diversity and community composition at Station ALOHA across time, ocean depth and on plastic debris, a new anthropogenically derived niche in the NPSG. Despite surface waters only experiencing mild seasonal variation in the abiotic environment, using near monthly picoplankton samples collected across a 2-year period at 25m depth, we observed that microbial community composition correlated with solar irradiance, thereby demonstrating seasonal trends. Ocean surface microbes are known to differ fundamentally from those found in the ocean's interior, yet the nature of the transitions from shallow to deep surface water communities is not well understood. Using a high resolution depth series across twelve time points, we observed that microbial communities partitioned into four groups that consisted of all samples above the deep chlorophyll maximum (DCM), 125m samples below the DCM, all 200 m samples and all 500, 770 and 1000m samples. Our data also revealed a sharp discontinuity in genomic traits including GC%, genome size and proteome elemental composition spanning the DCM, suggesting that nitrogen limitation was key to shaping this sharp genomic transition zone across disparate clades. In contrast, we observed that plastic debris in the NPSG forms a habitat for complex microbial assemblages that have organisms, lifestyles and metabolic pathways that are distinct and potentially less nutrient limited than picoplankton in the surrounding water column. Taken together this work helps expand our understanding of spatial and temporal distributions of microorganisms at Station ALOHA and can help direct future microbial oceanography surveys, highlighting new directions for future research.

Book Spatiotemporal Modeling of Microbial Communities

Download or read book Spatiotemporal Modeling of Microbial Communities written by Liat Shenhav and published by . This book was released on 2020 with total page 102 pages. Available in PDF, EPUB and Kindle. Book excerpt: Microbial communities can undergo rapid changes, that can both cause and indicate host disease, rendering longitudinal microbiome studies key for understanding microbiome-associated disorders. However, most standard statistical methods, based on random samples, are not applicable for addressing the methodological and statistical challenges associated with repeated, structured observations of a complex ecosystem. Therefore, to elucidate how and why our microbiome varies in time, and whether these trajectories are consistent across humans, we developed new methods for modeling the temporal and spatial dynamics of microbial communities. We developed a method to identify 'time-dependent' microbes (Shenhav et al., PLoS Computational Biology 2019) and showed that their temporal patterns differentiate between the developing microbial communities of infants and those of adults. We also developed models to deconvolute the dynamics of microbial community formation. Using these methods, we found significant differences between vaginally- and cesarean-delivered infants in terms of initial colonization and succession of their gut microbial community (Shenhav et al., Nature Methods 2019) as well as the trajectories of these communities in the first years of life (Martino*, Shenhav* et al., Nature Biotechnology). These models, designed to identify and predict time-dependent patterns, will help researchers better understand the temporal nature of the human microbiome from the time of its formation at birth and throughout life.

Book Diversity and Community Composition of Active Microbial Communities in Southern High Latitude Ecosystems

Download or read book Diversity and Community Composition of Active Microbial Communities in Southern High Latitude Ecosystems written by Claudia Maturana Martínez and published by . This book was released on 2021 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Southern high latitudes marine ecosystems (HLME) are highly sensitive to climate change, impacting physical, chemical, and biological processes, however, their prominent role in climate modulation and water masses circulation, contrast with the relatively low number of studies on their functioning. Relatively few studies on bacterioplankton community structure have been reported for southern Chilean Patagonia and for the Southern Ocean (SO) on a large scale, and none have targeted the active fraction of the bacterioplankton community. We used 16S rRNA sequencing to analyze and describe the community structure of the active bacterioplankton communities in southern HLME. The main objective of this thesis was to characterize de diversity and abundance of bacterioplankton communities along environmental and geographical gradients in southern HLME. First, we investigated whether nearby fjords of the southern Chilean Patagonia, with similar climate and location but different freshwater inflows, had different communities. Second, we investigated interannual changes experienced by the bacterioplankton community of the Yendegaia fjord. Third, we examined the large-scale spatial structure of the bacterioplankton community along a transect across the Pacific sector of the SO. Ours results show that southern polar bacterioplanktonic communities are structured according to physical, chemical, and biological parameters characteristic of the area. In addition, we also demonstrated that changes in environmental, spatial, and temporal parameters affect the structure of bacterioplanktonic communities. Thus, highlighting the importance of microbial ecology studies in areas sensitive to global climate change such as southern HLME.

Book Microbiome Interplay and Control

    Book Details:
  • Author : Christine Moissl-Eichinger
  • Publisher : Frontiers Media SA
  • Release : 2018-07-05
  • ISBN : 288945505X
  • Pages : 421 pages

Download or read book Microbiome Interplay and Control written by Christine Moissl-Eichinger and published by Frontiers Media SA. This book was released on 2018-07-05 with total page 421 pages. Available in PDF, EPUB and Kindle. Book excerpt: In complex systems, such as our body or a plant, the host is living together with thousands of microbes, which support the entire system in function and health. The stability of a microbiome is influenced by environmental changes, introduction of microbes and microbial communities, or other factors. As learned in the past, microbial diversity is the key and low-diverse microbiomes often mirror out-of-control situations or disease. It is now our task to understand the molecular principles behind the complex interaction of microbes in, on and around us in order to optimize and control the function of the microbial community – by changing the environment or the addition of the right microorganisms. This Research Topic focuses on studies (including e.g. original research, perspectives, mini reviews, and opinion papers) that investigate and discuss: 1) The role of the microbiome for the host/environmental system 2) The exchange and change of microbes and microbial communities (interplay) 3) The influence of external factors toward the stability of a microbiome 4) Methods, possibilities and approaches to change and control a system’s microbiome (e.g. in human or plant disease) 5) Experimental systems and approaches in microbiome research. The articles span the areas: human health and disease, animal and plant microbiomes, microbial interplay and control, methodology and the built environment microbiome.

Book Marine Macroecology

    Book Details:
  • Author : Jon D. Witman
  • Publisher : University of Chicago Press
  • Release : 2009-10-15
  • ISBN : 0226904148
  • Pages : 442 pages

Download or read book Marine Macroecology written by Jon D. Witman and published by University of Chicago Press. This book was released on 2009-10-15 with total page 442 pages. Available in PDF, EPUB and Kindle. Book excerpt: Pioneered in the late 1980s, the concept of macroecology—a framework for studying ecological communities with a focus on patterns and processes—revolutionized the field. Although this approach has been applied mainly to terrestrial ecosystems, there is increasing interest in quantifying macroecological patterns in the sea and understanding the processes that generate them. Taking stock of the current work in the field and advocating a research agenda for the decades ahead, Marine Macroecology draws together insights and approaches from a diverse group of scientists to show how marine ecology can benefit from the adoption of macroecological approaches. Divided into three parts, Marine Macroecology first provides an overview of marine diversity patterns and offers case studies of specific habitats and taxonomic groups. In the second part, contributors focus on process-based explanations for marine ecological patterns. The third part presents new approaches to understanding processes driving the macroecolgical patterns in the sea. Uniting unique insights from different perspectives with the common goal of identifying and understanding large-scale biodiversity patterns, Marine Macroecology will inspire the next wave of marine ecologists to approach their research from a macroecological perspective.

Book Meiobenthology

    Book Details:
  • Author : Olav Giere
  • Publisher : Springer Science & Business Media
  • Release : 2013-03-14
  • ISBN : 366202912X
  • Pages : 339 pages

Download or read book Meiobenthology written by Olav Giere and published by Springer Science & Business Media. This book was released on 2013-03-14 with total page 339 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is a comprehensive treatise on meiobenthology, the science of small animals which live, often disregarded even by zoologists, in huge numbers in all aquatic sediments. Covering all the scientific literature on the subject, particular emphasis is placed on ecological and systematic aspects. After a survey of the biotope conditions and important methods, the animals are introduced in a systematic account. This is followed by a report on the meiobenthos in relevant biotopes. The book concludes with an analysis of the productive role and the position of meiofauna in the food web and perspectives for future research.

Book The Ocean and Cryosphere in a Changing Climate

Download or read book The Ocean and Cryosphere in a Changing Climate written by Intergovernmental Panel on Climate Change (IPCC) and published by Cambridge University Press. This book was released on 2022-04-30 with total page 755 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Intergovernmental Panel on Climate Change (IPCC) is the leading international body for assessing the science related to climate change. It provides policymakers with regular assessments of the scientific basis of human-induced climate change, its impacts and future risks, and options for adaptation and mitigation. This IPCC Special Report on the Ocean and Cryosphere in a Changing Climate is the most comprehensive and up-to-date assessment of the observed and projected changes to the ocean and cryosphere and their associated impacts and risks, with a focus on resilience, risk management response options, and adaptation measures, considering both their potential and limitations. It brings together knowledge on physical and biogeochemical changes, the interplay with ecosystem changes, and the implications for human communities. It serves policymakers, decision makers, stakeholders, and all interested parties with unbiased, up-to-date, policy-relevant information. This title is also available as Open Access on Cambridge Core.

Book Art  Biology  and Conservation

    Book Details:
  • Author : Robert John Koestler
  • Publisher : Metropolitan Museum of Art
  • Release : 2003
  • ISBN : 1588391078
  • Pages : 574 pages

Download or read book Art Biology and Conservation written by Robert John Koestler and published by Metropolitan Museum of Art. This book was released on 2003 with total page 574 pages. Available in PDF, EPUB and Kindle. Book excerpt: Despite the perception that artworks are timeless and unchanging, they are actually subject to biological attack from a variety of sources--from bacteria to fungi to insects. This groundbreaking volume, which publishes the proceedings of a conference held at The Metropolitan Museum of Art in 2002, explores how the development of these organisms can be arrested while preserving both the work of art and the health of the conservator.The richly illustrated text, containing the writings of over 40 scientists and conservators, is divided into sections on stone and mural paintings, paper, textiles, wood and archaeological materials, treatment and prevention, and special topics. The artworks and cultural properties discussed include, among many others, Paleolithic cave paintings, Tiffany drawings, huts built by early Antarctic explorers, and a collection of toothbrushes taken from Auschwitz victims.

Book Lake Taihu  China

    Book Details:
  • Author : Boqiang Qin
  • Publisher : Springer Science & Business Media
  • Release : 2008-07-22
  • ISBN : 1402085559
  • Pages : 349 pages

Download or read book Lake Taihu China written by Boqiang Qin and published by Springer Science & Business Media. This book was released on 2008-07-22 with total page 349 pages. Available in PDF, EPUB and Kindle. Book excerpt: 2 In China, there are more than 2,759 lakes with surface area greater than 1km , and 2 the total lake area is 91,019km . One-third of these lakes are freshwater lakes, and the majority are situated in the middle and lower reaches of the Changjiang River or in eastern China’s coastal areas. These lakes function as drinking water supplies, ood control systems, aquaculture and tourism resources, navigation channels, etc. Recently, many shallow lakes in China have been subject to rapid eutrophication and suffer from algal blooms. This issue has resulted in a shortage of drinking water and in degradation of their ecosystems. The control of eutrophication of shallow lakes is one of the main issues with which the local people and Chinese governments are concerned today. Lake Taihu is the third largest freshwater lake in China, with an area of about 2 2338km and a mean depth of 1. 9m, a typical shallow lake located in the delta of Changjiang River, the most industrialized and urbanized area in China. Its main function is supplying drinking water for the surrounding cities, such as Wuxi, Suzhou, and Shanghai, but tourism, aquaculture, sheries, and navigation are imp- tant as well. However, with economic development and increased population in the lake basin, Lake Taihu has suffered increasingly from serious eutrophication. The environmental issue of Lake Taihu is now a very common one, as most lakes from eastern China are confronted with it.

Book Intestinal Microorganisms of Termites and Other Invertebrates

Download or read book Intestinal Microorganisms of Termites and Other Invertebrates written by Helmut König and published by Springer Science & Business Media. This book was released on 2006 with total page 522 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is the first work to focus on microbes in gut systems of soil animals. Beginning with an overview of the biology of soil invertebrates, the text turns to the gut microbiota of termites, which are important soil processors in tropical and subtropical regions. Coverage extends to intestinal microbiota of such other litter decomposers as earthworms, springtails, millipedes, and woodlice. Thoroughly illustrated, including color photographs.

Book The Prokaryotes

    Book Details:
  • Author : Edward F. DeLong
  • Publisher : Springer
  • Release : 2014-10-13
  • ISBN : 9783642301193
  • Pages : 567 pages

Download or read book The Prokaryotes written by Edward F. DeLong and published by Springer. This book was released on 2014-10-13 with total page 567 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Prokaryotes is a comprehensive, multi-authored, peer reviewed reference work on Bacteria and Achaea. This fourth edition of The Prokaryotes is organized to cover all taxonomic diversity, using the family level to delineate chapters. Different from other resources, this new Springer product includes not only taxonomy, but also prokaryotic biology and technology of taxa in a broad context. Technological aspects highlight the usefulness of prokaryotes in processes and products, including biocontrol agents and as genetics tools. The content of the expanded fourth edition is divided into two parts: Part 1 contains review chapters dealing with the most important general concepts in molecular, applied and general prokaryote biology; Part 2 describes the known properties of specific taxonomic groups. Two completely new sections have been added to Part 1: bacterial communities and human bacteriology. The bacterial communities section reflects the growing realization that studies on pure cultures of bacteria have led to an incomplete picture of the microbial world for two fundamental reasons: the vast majority of bacteria in soil, water and associated with biological tissues are currently not culturable, and that an understanding of microbial ecology requires knowledge on how different bacterial species interact with each other in their natural environment. The new section on human microbiology deals with bacteria associated with healthy humans and bacterial pathogenesis. Each of the major human diseases caused by bacteria is reviewed, from identifying the pathogens by classical clinical and non-culturing techniques to the biochemical mechanisms of the disease process. The 4th edition of The Prokaryotes is the most complete resource on the biology of prokaryotes. The following volumes are published consecutively within the 4th Edition: Prokaryotic Biology and Symbiotic Associations Prokaryotic Communities and Ecophysiology Prokaryotic Physiology and Biochemistry Applied Bacteriology and Biotechnology Human Microbiology Actinobacteria Firmicutes Alphaproteobacteria and Betaproteobacteria Gammaproteobacteria Deltaproteobacteria and Epsilonproteobacteria Other Major Lineages of Bacteria and the Archaea

Book Biodiversity and Human Health

Download or read book Biodiversity and Human Health written by Francesca Grifo and published by Island Press. This book was released on 1997-02-01 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The implications of biodiversity loss for the global environment have been widely discussed, but only recently has attention been paid to its direct and serious effects on human health. Biodiversity loss affects the spread of human diseases, causes a loss of medical models, diminishes the supplies of raw materials for drug discovery and biotechnology, and threatens food production and water quality. Biodiversity and Human Health brings together leading thinkers on the global environment and biomedicine to explore the human health consequences of the loss of biological diversity. Based on a two-day conference sponsored by the National Institutes of Health, the National Science Foundation, and the Smithsonian Institution, the book opens a dialogue among experts from the fields of public health, biology, epidemiology, botany, ecology, demography, and pharmacology on this vital but often neglected concern. Contributors discuss the uses and significance of biodiversity to the practice of medicine today, and develop strategies for conservation of these critical resources. Topics examined include: the causes and consequences of biodiversity loss emerging infectious diseases and the loss of biodiversity the significance and use of both prescription and herbal biodiversity-derived remedies indigenous and local peoples and their health care systems sustainable use of biodiversity for medicine an agenda for the future In addition to the editors, contributors include Anthony Artuso, Byron Bailey, Jensa Bell, Bhaswati Bhattacharya, Michael Boyd, Mary S. Campbell, Eric Chivian, Paul Cox, Gordon Cragg, Andrew Dobson, Kate Duffy-Mazan, Robert Engelman, Paul Epstein, Alexandra S. Fairfield, John Grupenhoff, Daniel Janzen, Catherine A. Laughin, Katy Moran, Robert McCaleb, Thomas Mays, David Newman, Charles Peters, Walter Reid, and John Vandermeer. The book provides a common framework for physicians and biomedical researchers who wish to learn more about environmental concerns, and for members of the environmental community who desire a greater understanding of biomedical issues.