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Marine microbiology : ecology and applications / Colin Munn ; with foreword by Farooq Azam.
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Title:Marine microbiology : ecology and applications / Colin Munn ; with foreword by Farooq Azam.
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Author/Creator:Munn, C. B. (Colin B.)
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Published/Created:New York : Garland Science, ©2011.
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Location:WOODWARD LIBRARY stacksWhere is this?
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Call Number: QW80 .M966 2011
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Number of Items:1
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Status:Available
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Location:WOODWARD LIBRARY stacksWhere is this?
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Library of Congress Subjects:Marine microbiology.
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Medical Subjects: Marine Biology.
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Edition:2nd ed.
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Description:xvi, 364 pages : illustrations (some color), maps (chiefly color) ; 28 cm.
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Summary:Overview: Marine Microbiology brings together microbial biology and ecology to create an integrated approach that addresses environmental management, human health, and economic concerns. The Second Edition takes into account many new discoveries in the field including the role of microbes in ocean processes and nutrient cycles, the importance of viruses, the beneficial role of marine microbes in biotechnology, biofuels, metagenomics and synthetic biology, and new research on the impact of climate change and ocean acidification. The first three sections review the main features of the marine environment and key aspects of marine microbial life; the second section examines the role of marine microorganisms in ecology; and the final section considers some of the applications of this knowledge in areas such as disease and biodegradation.
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Notes:Includes bibliographical references and index.
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ISBN:9780815365174 (alk. paper)
0815365179 (alk. paper)
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Contents:Machine generated contents note: ch. 1 Microbes in the Marine Environment
Marine microbiology is one of the most exciting and important areas of modern science
Marine microbiology encompasses all microscopic organisms and viruses
Marine microbes are found in all three domains of cellular life
Horizontal gene transfer confounds our understanding of evolution
Viruses are noncellular entities with great importance in marine ecosystems
Microbial processes shape the living world
Marine microbes show great variation in size
world's oceans and seas form an interconnected water system
upper surface of the ocean is in constant motion owing to winds
Deep-water circulation systems transport water between the ocean basins
Seawater is a complex mixture of inorganic and organic compounds
Light and temperature have important effects on microbial processes
Marine microbes form a major component of the plankton
Microbes, particles, and dissolved nutrients are not evenly distributed in seawater
Microbes play a key role in the formation of sediments
Microbes colonize surfaces through formation of biofilms
Microbes in sea ice form an important part of the food chain in polar regions
Microbial activity at hydrothermal vents provides an oasis of life in the deep sea
Cold seeps also support diverse life
Living organisms are the habitats of many microbes
Conclusions
References
Further reading
ch. 2 Methods in Marine Microbiology
Sampling, General Experimental Procedures, And Remote Sensing
aim of microbial ecology is the study of the diversity and activities of microbes in situ
Measurement of specific cell constituents may be used as biomarkers of microbial activity
Remote sensing and sampling permits analysis of microbial activities
Microbiological sampling requires special techniques
Mecocosm experiments attempt to simulate natural conditions
Microelectrodes and biosensors are used to measure environmental changes
Isotopes are used to study microbial transformations of compounds
Direct Observation And Enumeration Of Microbes
Light and electron microscopy are used to study morphology and structure of microbes
Epifluorescence light microscopy enables enumeration of marine microbes
Confocal laser scanning microscopy enables recognition of living microbes within their habitat
Flow cytometry measures the number and size of particles
Culture-Based Methods For Isolation And Identification Of Microbes
Different microbes require specific culture media and conditions for growth
Enrichment culture selects for microbes with specific growth requirements
Phenotypic testing is used for identification and detailed characterization of many cultured bacteria
Analysis of microbial components can be used for bacterial classification and identification
Nucleic-Acid-Based Methods
use of nucleic-acid based methods has had a major impact on the study of marine microbial diversity
Sequencing of ribosomal RNA genes is the most widely used tool in studies of microbial diversity
first step in all nucleic acid investigations involves the isolation of genomic DNA or RNA from the culture or community
polymerase chain reaction (PCR)
Genomic fingerprinting is used for detailed analysis of cultured microbes
Determination of GC ratios and DNA-DNA hybridization is used in bacterial taxonomy
DNA sequencing is a major tool in marine microbiology
"Next-generation" technologies allow inexpensive high-throughput sequencing
Sequence data are used for phylogenetic analysis
Denaturing gradient gel electrophoresis (DGGE) and terminal restriction fragment length polymorphism (TRFLP) are widely used to assess composition of microbial communities
Elucidating the full genome sequence of microbes has provided major insights into their functional roles
Metagenomics is revolutionizing our understanding of marine microbial ecology
Fluorescent hybridization (FISH) allows visualization and quantification of specific microbes
Metatranscriptomics and metaproteomics reveal metabolic activities in the environment
Microarrays enable assessment of gene activity in the environment
Conclusions
References
Further reading
ch. 3 Metabolic Diversity and Ecophysiology
All cells need to obtain energy and conserve it in the compound ATP
All cells need carbon as the major component of cellular material
Phototrophy involves conversion of light energy to chemical energy
Oxygenic photosynthesis involves two distinct but coupled photosystems
Anaerobic anoxygenic photosynthesis uses only one type of reaction center
Aerobic anoxygenic phototrophy is widespread in planktonic bacteria
Some phototrophs use rhodopsins as light-harvesting pigments
Chemolithotrophs use inorganic electron donors as a source of energy and reducing power
Thiotrophic bacteria use sulfur compounds as electron donor
Many chemolithotrophs use hydrogen as an electron donor
Nitrification by Bacteria and Archaea is a major process in the marine nitrogen cycle
Calvin-Benson cycle is the main method of carbon dioxide fixation in autotrophs
Some Archaea and Bacteria use alternative pathways to fix CO2
Fixation of nitrogen makes this essential element available for building cellular material in all life
Many marine microbes obtain energy by the fermentation of organic compounds
Aerobic and anaerobic respiration use external electron acceptors
Reduction of nitrate and denitrification result in release of nitrogen and other gases
Sulfate reduction is a major process in marine sediments
Methanogenesis is a special type of metabolism carried out only by a group of Archaea
Aerobic catabolism of methane and other C1 compounds is widespread in coastal and oceanic habitats
Use of complex macromolecules requires the synthesis of extracellular enzymes
Acquisition of iron is a major challenge for marine microbes
growth of bacterial cells depends on availability of nutrients and environmental factors
Bacteria adapt to starvation by a series of coordinated changes to cell metabolism
Most marine microbes are adapted to an oligotrophic lifestyle and grow very slowly
Some bacteria enter a "viable but nonculturable" state in the environment
Nutrients are acquired via specialized transport mechanisms
Growth efficiency of many marine bacteria is probably low
Microbes use a variety of mechanisms to regulate cellular activities
Some bacteria use motility in the quest for nutrients and optimal conditions
Formation of biofilms is an important step in microbial colonization of surfaces
Pili are important for bacterial attachment to surfaces and exchange of genetic information
Antagonistic interactions between microbes occur on particles or surfaces
Quorum sensing is an intercellular communication system for regulation of gene expression
Most marine microbes grow at low temperatures
Microbes growing in hydrothermal systems are adapted to very high temperatures
Microbes that inhabit the deep ocean must withstand a very high hydrostatic pressure
Microbes vary in their requirements for oxygen or tolerance of its presence
Ultraviolet irradiation has lethal and mutagenic effects
Microbes are protected from osmotic damage by various mechanisms
Conclusions
References
Further reading
ch. 4 Marine Bacteria
Overview Of Diversity Of The Bacteria
domain Bacteria contains about 80 phyla, many of which have no cultivated members
There is no generally accepted concept for the definition of bacterial species
Bacteria show a variety of cell forms and structure
cell wall is an important feature of bacterial cells
Many Bacteria produce a glycocalyx or capsule
Phylogenetic studies of planktonic Bacteria reveal a small number of major clades
Major Types Of Marine Bacteria, Grouped By Phenotype
Several groups of bacteria carry out anoxygenic photosynthesis
Nitrifying bacteria grow chemolithotrophically using reduced inorganic nitrogen compounds as electron donors
wide range of Proteobacteria can grow chemolithotrophically using reduced sulfur compounds
Aerobic methanotrophs and methylotrophs are widespread in coastal and oceanic habitats
pseudomonads are a heterogeneous group of chemoorganotrophic, aerobic, rod-shaped Proteobacteria
Free-living aerobic nitrogen-fixing bacteria are important in sediments
Enterobacteriaceae is a large and well-defined family of Gammaproteobacteria
Vibrio and related genera have worldwide distribution in coastal and ocean water and sediments
Some members of the Vibrionaceae are bioluminescent
Oceanospiralles are characterized by their ability to break down complex organic compounds
Magnetotactic bacteria orient themselves in the Earth's magnetic field
Bdellovibrio is a predator of other bacteria
Budding and stalked Proteobacteria show asymmetric cell division
Sulfur- and sulfate-reducing bacteria have a major role in the sulfur cycle
Cyanobacteria carry out oxygenic photosynthesis
Many marine Cyanobacteria carry out nitrogen fixation
genera Prochlorococcus and Synechococcus dominate the picoplankton in large areas of the Earth's oceans
Cyanobacteria are important in the formation of microbial mats in shallow water
Firmicutes are a major branch of Gram-positive Bacteria
Epulopiscium fishelsoni and related species are giant bacteria with a unique "viviparous" lifestyle
Actinobacteria is a large phylum including the mycobacteria and actinomycetes
Contents note continued: Cytophaga-Flavobacterium-Bacteroides group is morphologically and metabolically diverse
Planctomycetes are a group with cells that show some similarities to eukaryotes
Verrucomicrobia is a poorly characterized phylum of Bacteria
spirochetes are Gram-negative, tightly coiled, flexuous bacteria distinguished by very active motility
Aquifex and Thermotoga are hyperthermophiles
Conclusions
References
Further reading
ch. 5 Marine Archaea
Several aspects of cell structure and function distinguish the Archaea from the Bacteria
Euryarcheaota and Crenarchaeota form the major branches of the Archaea
Many members of the Euryarchaeota produce methane
Archaea in deep sediments can carry out anaerobic oxidation of methane coupled to sulfate reduction
Thermococcus and Pyrococcus are hyperthermophiles found at hydrothermal vents
Archaeoglobus and Ferroglobus are hyperthermophilic sulfate-reducers and iron-oxidizers
Some Euryarchaeota exist in hypersaline environments
Nanoarchaeum is an obligate parasite of another archaeon, Igniococcus
Crenarchaeota include hyperthermophiles and psychrophiles
Hyperthermophilic Crenarchaeota belong to the order Desulfurococcales
psychrophilic marine Crenarchaeota are major members of the plankton
Conclusions
References
Further reading
ch. 6 Marine Eukaryotic Microbes
term "protist" is used to describe an extremely diverse collection of unicellular eukaryotic microbes
Systems for the classification of eukaryotic microbes are still developing
Many protists possess flagella
euglenids may be phototrophic, heterotrophic, or mixotrophic
bicosoecids are a group of highly active bacterivorous flagellates
choanoflagellates have a unique feeding mechanism
Dinoflagellates have critical roles in marine systems
Dinoflagellates undertake diurnal vertical migration
Some dinoflagellates exhibit bioluminescence
ciliates are voracious grazers of other protists and bacteria
haptophytes (prymnesiophytes) are major components of ocean phytoplankton
Diatoms are extremely diverse and abundant primary producers in the oceans
Diatoms and their products
-past and present
-have many applications
Protists in the picoplankton size range are extremely widespread and diverse
Raphidophytes are stramenopiles which may cause harmful blooms
Thraustochytrids and labyrinthulids play an important role in breakdown and absorption of organic matter
Amoebozoa may be important grazers of bacteria associated with particles
Radiolarians and foraminifera have highly diverse morphologies with mineral shells
Marine fungi are especially important in decomposition of complex materials in coastal habitats
Conclusions
References
Further reading
ch. 7 Marine Viruses
Viruses are extremely diverse in structure and genetic composition
Viruses are the most abundant biological entities in seawater
Phages are viruses that infect bacterial and archaeal cells
life cycle of phages shows a number of distinct stages
Lysogeny occurs when the phage genome is integrated into the host genome
Large DNA viruses are important pathogens of planktonic protists
Photosynthetic protists are also infected by RNA viruses
role of viruses as pathogens of heterotrophic protists remains unclear
Loss of infectivity of viruses arises from irreparable damage to the nucleic acid or protein capsid
Measurement of virus production rates is important for assessing the role of virus-induced mortality
Viral mortality "lubricates" the biological pump
Viral mortality plays a major role in structuring diversity of microbial communities
Marine viruses show enormous genetic diversity
Viromes are reservoirs of genetic diversity and exchange
Conclusions
References
Further reading
ch. 8 Microbes in Ocean Processes
-Carbon Cycling
Development of the microbial loop concept transformed our understanding of ocean processes
fate of carbon dominates consideration of the microbial ecology of the oceans
Marine phytoplankton are responsible for about half of the global CO2 fixation
As well as light, photosynthetic activity depends on the availability of nutrients
importance of various components of the microbial loop varies according to circumstances
microbial loop results in retention of dissolved nutrients
Ingestion of bacteria by protists plays a key role in the microbial loop
"viral shunt" catalyzes nutrient regeneration in the upper ocean
Eutrophication of coastal waters affects microbial activity
Conclusions
References
Further reading
ch. 9 Microbes in Ocean Processes
-Nitrogen, Sulfur, Iron, and Phosphorus Cycling
Nutrient Limitation
Key elements may act as limiting nutrients for different groups of microbes
Productivity of surface waters shows marked geographical variations
Ocean microbes require iron
Nitrogen Cycle
Major shifts in our understanding of the marine nitrogen cycle are in progress
New nitrogen-fixers have been discovered recently
Fixed nitrogen is returned to the inorganic pool by ammonification and nitrification
Denitrification and anammox reactions return nitrogen to its elemental form
Microbial processes in sediments are a major contributor to nitrogen cycling
Sulfur Cycle
oceans contain large quantities of sulphur
-an essential element for life
Metabolism of organic sulfur compounds is especially important in surface waters
fraction of DMSP production leads to release of the gas dimethyl sulfide (DMS)
Microbial sulfate reduction and sulfide oxidation occur in sediments, vents, and seeps
Phosphorus Cycle
Phosphorus is often a limiting or colimiting nutrient
Marine microbes are adapted to low and variable levels of phosphorus
Conclusions
References
Further reading
ch. 10 Symbiotic Associations
Zooxanthellae and other photosynthetic endosymbionts are vital for the nutrition of many marine animals
Coral bleaching occurs due to the breakdown of the symbiosis between zooxanthellae and their host
Scleractinian corals are multipartner symbiotic systems (holobionts)
Photosynthetic zooxanthellae boost the growth of giant clams in nutrient-poor waters
Worms and clams at hydrothermal vents obtain nutrition from chemosynthetic bacterial endosymbionts
Chemosynthetic symbionts are widely distributed in marine invertebrates
Animals colonizing whale falls depend on autotrophic and heterotrophic symbionts
Some hydrothermal vent animals have dense populations of bacteria on their surface
Some fish and invertebrates use bacteria to make light
bobtail squid uses bacterial bioluminescence for camouflage
Endosymbionts of bryozoans produce compounds that protect the host from predation
Sponges contain dense communities of specific microbes
Some protists with endosymbionts can switch from heterotrophic to phototrophic metabolism
Viruses may help a sea slug to use "stolen" chloroplasts for photosynthesis
Conclusions
References
Further reading
ch. 11 Microbial Diseases of Marine Organisms
Diseases Of Invertebrates
Diseases of invertebrates have major ecological and economic impact
Infectious diseases of corals have emerged as a major threat to their survival
fungus Aspergillus sydowii caused a mass mortality of sea fans in the Caribbean Sea
Black band disease of corals is a long-established disease of corals worldwide
White plague and white pox are major diseases affecting Caribbean reefs
Extensive tissue necrosis of corals may involve bacteria and protistan parasites
role of viruses in coral diseases is unclear
Sponge disease is a poorly investigated global phenomenon
Vibrios are a major cause of important diseases of cultured mollusks
wide range of other bacteria can cause infections in bivalve mollusks
Virus infections are a major problem in oyster culture
Bacterial and viral diseases are major problems in aquaculture of crustaceans
Expansion of intensive prawn culture has been accompanied by a dramatic spread in viral diseases
Bacteria can cause epizootics with high mortalities in crustaceans
Parasitic dinoflagellates are major pathogens of crustaceans
Diseases Of Vertebrates
Microbial diseases of fish cause major losses in aquaculture, but effects on natural populations are harder to determine
importance of fish diseases in aquaculture has led to the development of specialized branches of veterinary science and diagnostic microbiology
Bacteria produce infections in fish using a range of pathogenic mechanisms
Vibrios are responsible for some of the main infections of marine fish
Pasteurellosis is a major disease in warm-water marine fish
Aeromonas salmonicida has a broad geographic range affecting fish in fresh and marine waters
Marine flexibacteriosis is caused by an opportunist pathogen of low virulence
Piscirickettsia and Francisella are intracellular proteobacteria causing economically important diseases in salmon and cod
Intracellular Gram-positive bacteria cause chronic infections of fish
Several Gram-positive cocci cause diseases affecting the central nervous system of fish
Viruses cause numerous diseases of marine fish
Infectious salmon anemia virus is one of the most important pathogens in salmon culture
Viral hemorrhagic septicemia virus infects many species of wild fish
Lymphocystis virus causes a highly contagious chronic skin infection of fish
Contents note continued: Birnaviruses appear to be widespread in marine fish and invertebrates
Viral nervous necrosis is an emerging disease with major impact
Protists can cause disease in fish via infections, toxins, and direct physical effects
Dinoflagellate and diatom toxins can affect marine mammals
Mass mortalities in the late twentieth century prompted the study of viral diseases of marine mammals
Viruses from nine different families have been linked to diseases of marine mammals
Several species of bacteria and fungi infect marine mammals
Sea turtles are affected by a virus promoting growth of tumors
Diseases Of Seaweeds And Seagrasses
Fungi, bacteria, and protists cause ecologically and economically important diseases of seaweeds and seagrasses
Many species of algae contain virus-like particles
Conclusions
References
Further reading
ch. 12 Marine Microbes as Agents of Human Disease
Pathogenic vibrios are common in marine and estuarine environments
Cholera is a major human disease with a reservoir in coastal environments
Vibrio cholerae produces disease in humans owing to production of a toxin and other pathogenic factors
Control of cholera remains a major world health problem
Mobile genetic elements play a major role in the virulence of Vibrio cholerae
Non-O1 and non-O139 serotypes of Vibrio cholerae are widely distributed in coastal and estuarine waters
Vibrio vulnificus causes serious illness associated with seafood
Distribution of Vibrio vulnificus in the marine environment is affected by temperature and salinity
Vibrio vulnificus and other marine vibrios can cause wound infections
Seafood-borne infection by Vibrio parahaemolyticus is common throughout the world
Scombroid fish poisoning is a result of bacterial enzymic activity
Botulism is a rare lethal intoxication from seafood
Fugu poisoning is caused by a neurotoxin of probable bacterial origin
Some diseases of marine mammals and fish can be transmitted to humans
Toxic dinoflagellates and diatoms pose serious threats to human health
Paralytic shellfish poisoning is caused by saxitoxins produced by dinoflagellates
Management of paralytic shellfish poisoning depends on assaying toxins in shellfish
Brevetoxin can cause illness via ingestion or inhalation during red tides
Diarrhetic shellfish poisoning and azaspiracid poisoning result in gastrointestinal symptoms
Amnesic shellfish poisoning is caused by toxic diatoms
Ciguatera fish poisoning has a major impact on the health of tropical islanders
Dinoflagellates and diatoms probably produce toxins as antipredator defense mechanisms
incidence of harmful algal blooms and toxin-associated diseases is increasing owing to the interaction of many complex factors
Coastal waters must be regularly monitored to assess the development of harmful algal blooms
Conclusions
References
Further reading
ch. 13 Microbial Aspects of Marine Biofouling, Biodeterioration, and Pollution
Biofouling And Biodeterioration
Microbial biofilms are often the first phase in biofouling
Microbially induced corrosion occurs as a result of the activities of microorganisms within biofilms on metals, alloys and composite materials
Microbes cause biodeterioration of marine wooden structures and timber
Microbial growth and metabolism are the major cause of spoilage of seafood products
Processing, packaging, and inhibitors of spoilage are used to extend shelf-life
Some seafood products are produced by deliberate manipulation of microbial activities
Microbial Aspects Of Marine Pollution By Sewage
Coastal pollution by wastewater is a significant source of human disease
range of human viruses are present in seawater contaminated by sewage
Fecal indicator bacteria have been used for many years to test public health risks in marine water
Escherichia coli and coliforms are unreliable indicators of human fecal pollution of the sea
fecal streptococci or enterococci are more reliable indicators for monitoring marine water quality
Molecular-based methods permit quicker analysis of indicator organisms and microbial source tracking
variety of alternative indicator species have been investigated
Different countries use different quality standards for marine waters
Sewage pollution of water in which shellfish are harvested for human consumption poses a serious health hazard
Many countries have microbiological standards for the classification of waters in which shellfish are cultivated
Direct testing for pathogens in shellfish is possible using molecular techniques
Oil And Other Chemical Pollution
Oil pollution of the marine environment is a major problem
range of microbes are responsible for biodegradation of oil at sea
fate of oil depends on a combination of physical and biological processes
Biodegradation is enhanced by addition of emulsifiers
Addition of nutrients is necessary to increase the rate of oil biodegradation
Bioremediation has been used to lessen the impact of oil spills on vulnerable coasts
Microbes are important in the distribution of persistent organic pollutants
Bacteria are effective in the removal of heavy metals from contaminated sediments
Microbial systems can be used for monitoring the environment for toxic chemicals
Mobilization of mercury by bacterial metabolism leads to accumulation of toxic mehylmercury
Conclusions
References
Further reading
ch. 14 Marine Microbes and Biotechnology
Enzymes from marine microbes have many applications
DNA polymerases from hydrothermal vent organisms are widely used in molecular biology
Metagenomics and bioinformatics lead to new biotechnological developments
Polymers from marine bacteria are finding increasing applications
Microalgae are promising new sources of biofuels
Marine microbes are a rich source of biomedical products
Bioactive compounds from marine invertebrates may be produced by microbial symbionts
New antimicrobial compounds may be discovered through study of complex microbial communities
Marine microbes are the source of a range of health-promoting products
New approaches to antifouling have been discovered through study of microbial colonization of surfaces
Marine microbes are a rich source for biomimetics, nanotechnology, and bioelectronics
Microbial biotechnology has many applications in aquaculture
Most bacterial pathogens can be killed or inhibited by antimicrobial agents
Resistance to antimicrobial agents is a major problem in aquaculture
Vaccination of finfish is widely used in aquaculture
Recombinant DNA technology is used to produce vaccines for diseases caused by viruses and some bacteria
DNA vaccination or genetic immunization depends on expression of a sequence encoding the protective antigen
Probiotics, prebiotics, and immunostimulants are widely used in marine aquaculture
Conclusions
References
Further reading
ch. 15 Concluding Remarks.