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Books > Science & Mathematics > Biology, life sciences > Microbiology (non-medical) > Bacteriology
Coliforms are widely used as indicators of water quality and
sanitary status, and levels are regulated as standards and
legislation in many jurisdictions. The group of organisms known as
coliform bacteria are commonly used to gauge quality and potential
for health risk of potable and recreational waters, and are
stimulated in water quality standards and legislation of many
jurisdictions worldwide. The contents of this book includes an
overview about the involvement of biofilms in waterborne diseases;
currently employed methods of analysis for coliform bacteria; the
testing of coliformic bacteria for water departments using
automated sampling and analysis; the prevalence of E.coli outbreaks
linked to the consumption of certain products; and finally, a
review of the sources of coliform bacteria in freshwaters.
The ability of various microorganisms to attach to surfaces and
create biofilms on them is rather a cause of concern for many
industries, including for those occupied with food production and
processing. Thus, the attachment of bacterial pathogens to food
processing equipment is considered as an essential contributing
factor in foodborne disease outbreaks, since this may ultimately
lead to the contamination of food products. Improperly cleaned
surfaces promote soil build-up, and, in the presence of water,
contribute to the development of microbial biofilms which may
contain pathogenic bacteria, such as Salmonella. Salmonella
enterica is one of the most significant enteric foodborne bacterial
pathogens, with host-adapted strains able to cause systemic human
infections and persist for long periods of time, posing significant
public health problems. This book discusses the prevalence, risk
factors and treatment options of Salmonella.
Enterococcus faecalis is a gram-positive, coccus shaped, lactic
acid bacterium, with demonstrated ubiquity across multiple
anatomical sites. Enterococcus faecalis isolates have been isolated
from clinical samples as the etiological agent in patients with
overt infections, and from body sites previously thought to be
sterile but absent of signs and symptoms of infection. E. faecalis
is implicated in both human health and disease, recognised as a
commensal, a probiotic and an opportunistic multiply resistant
pathogen. E faecalis has emerged as a key pathogen in nosocomial
infections. Enterococcus faecalis is a commensal bacterium
inhabiting the gastro-intestinal tract of humans. Interestingly,
although it is not clear whether E faecalis is part of the oral
cavity microbiome, it is frequently recovered from root canal
infections. Specifically, it is the major pathogen found in
persistent infections associated with root canal treatment failure.
Moreover, E faecalis is one of the leading multidrug resistant
nosocomial pathogens, causing infective endocarditis, and
participating in urinary tract, wound, and device- device-related
infections. This book discusses the molecular characteristics, its
role in nonsocomial infections and the antibacterial effects of
Enterococcus faecalis. It begins by discussing the virulence
factors of enterococcus faecalis and concludes with E faecalis in
dental infections.
Chronic wounds, by definition, are those that remain in a chronic
inflammatory state and therefore fail to follow normal patterns of
the healing process. The chronic wounds present a challenge to
physicians and patients alike because they are very difficult to
heal, inflict a huge cost to society and impair the quality of life
for millions of people. There are many factors that contribute to
the development of chronic wounds. One of the most clinically
significant impediments to wound healing is infections. Bacteria
biofilm formation in wounds is the best unifying explanation for
the failure of chronic wounds to heal. This book discusses how the
formulation of effective and inexpensive products will be useful to
resolve infected chronic wounds with biofilm-producing bacteria.
While we have a feeling that our 'thought experiment' could bear
fruit, we are far from the idea that equivalent expressions by the
brain and the immune function point to an axis of both systems.
Al-though major players, they also depend on the regulation of the
rest of the body. As we focus here rather on a social context, many
more factors are to be accounted for. Shanty-towns, rather than
being seen in a dismissive context, may provide clues to historical
conditions, a tip off perhaps to update the idea of
'individualistic' immunity. Subjected to all kinds of inward and
outward interferences, obviously, a historical approach is complex.
Urban overcrowding, by replacing nomadic life, allowed multiple
interacting brains to develop civilization and science. The fact
that survival under prolonged siege had been recorded, filthy food
and water supply notwithstanding, suggests that collective immune
adaptation may not be out of question either. Fortunately,
experimental evidence in mice and other animal comes in support to
our hypothesis of collective immunity. As yet no consensus about
immune stimulation or downplaying has been reached, our aim being
the possibility of reciprocal immune influence as such.
This book is a facsimile reprint and may contain imperfections such
as marks, notations, marginalia and flawed pages.
Pathological bacteria are only 5% of the bacterial population. The
other 95% promote the health and well-being of Earth. The digestive
tract holds trillions of archaebacteria from over 4 1/2 billion
years ago. When in danger, bacteria create shells for protection.
Are humans evolved shells in order to protect the bacteria from
atmospheric oxygen? Life forms are descended from prokaryote
archaebacteria, for whom oxygen is unnecessary. After millions of
years of evolution, can bacteria now direct humans to return the
planet, through pollution, ozone depletion, or a nuclear disaster,
to a more manageable level of oxygen from a present 21% to less
than 1%? No bacteria reside in the cranial brain. Was the enteric
nervous system the first brain? Are the archaebacteria within the
gastrointestinal tract directing the actions of the body? Are the
archaebacteria the architects and directors of evolution?
Blackwell is proud to announce Professor Barry Marshall, along with
Dr. Robin Warren, have been awarded the Nobel Prize in physiology
or medicine.
Providing background and the human touch of a discovery process
taking almost a century, "Helicobacter Pioneers" is a collection of
accounts from pioneering researchers of "Helicobacter pylori," of
who had firsthand knowledge of the pioneer.
A remarkable work with original accounts that will never date,
this book will inspire readers interested in gastroenterology,
microbiology, or any facet of medical or scientific history.
"Although most people are aware that bacteria are all around us,
few would guess that they produce such distinctive and accessible
signs. Whether you're walking on the beach, visiting a zoo or
aquarium, buying groceries, looking for fossils, drinking beer,
traipsing through a swamp, or cleaning scum from beneath a dripping
outdoor faucet, you're surrounded by bacterial field marks. You
don't need a laboratory or fancy equipment to find out what kind of
bacteria are there—this guide will tell you how."—from the
Introduction Bacteria are an integral aspect of every habitat in
which they occur and affect the lives of humans, other animals, and
plants in many ways. Too often, we equate "bacterium" with
"pathogen" and think of bacteria as things to avoid. In a
fascinating guide perfect for naturalists, students, teachers, and
tourists alike, Betsey Dexter Dyer lets the reader know that it is
possible to observe bacteria with all the senses. Many groups of
bacteria can be easily identified in the field (or in the
refrigerator) without a microscope. Written for curious souls of
all ages, A Field Guide to Bacteria opens our eyes—and noses and
ears—to this hidden (or neglected) world around us. Useful
illustrations, including 120 color photographs, accompany Dyer's
lively text throughout.
Functional Analysis of Bacterial Genes: A Practical Manual summarises the principles and the key methods used to analyse the function of genes in bacteria. Written by members of the Bacillus subtilis Functional Analysis Consortium, this book provides a guide to the many approaches for the systematic analysis of gene function. Features include: - In-depth discussion of the theory and application of the methods
- A step-by-step practical guide to each method
- Experimental examples to indicate expected results
- Contact information for suppliers and resource centres
Written by internationally recognised authors, Functional Analysis of Bacterial Genes: A Practical Manual will be a valuable resource to researchers and technicians using functional analysis for many bacterial species, whether in the academic departments of microbiology or genetics, the biotechnology, biomedicine or pharmaceutical industries, or other centres of genomics and bioinformatics. "This volume, and the pioneering effort it represents, will be of interest not only to those of us who are specialists in B. subtilis but to all microbiologists and genome scientists who face the formidable task of uncovering the functions of the myriad uncharacterised genes that are emerging from large-scale sequencing." -Richard Losick , The Biological Laboratories, Harvard University, Cambridge, Massachusetts, USA
The Archaea, or archaebacteria, constitute the fifth kingdom of living organisms, as distinct from true bacteria as from fungi, animals, and plants. They were very likely the first life forms, from which all other living things evolved, because they are naturally adapted to thrive in the anoxic extreme environments that prevailed when life originated on the earth. Less than 20 years ago they were discovered inhabiting hot springs, salt pans, animal rumens, deep sea vents, soils, and deeply buried sediments in environments in which other life forms could not survive. Their discovery has given a unique vantage on the principles of life, because they present unique life histories and metabolisms, in effect a novel, previously unrecognized type of life. Many of the Archaea are of significant commercial importance; for instance, PCR, which has revolutionized molecular biology, is based on enzymes found in a member of the Archaea that was originally found in a hot geyser pool in Yellowstone National Park.
Pseudomonas aeruginosais characterized by its metabolic versatility
and found ubiquitously in soil and aquatic habitats and persists
survival on various surfaces of plants, animals and humans.
Diversity in Pseudomonas characteristics have led to recent
technological advances and lay out important avenues of research
focused on the role of Pseudomonas and the molecular mechanisms of
their beneficial actions. This book brings together respectedP.
aeruginosaexperts from around the world to provide a timely,
extensive and updated review of Pseudomonas research. It covers
various aspects in applications of Pseudomonas in molecular
engineering of genetic tools for Pseudomonas protein expression,
medical and environmental fields including biofilm development,
quorum sensing, heavy metal bioremediation and photodynamic therapy
as well as the industrially-important lipoxygenase biocatalysis
properties. This book is essential reading for scientists working
with Pseudomonas and serves as a ready reference and text book for
graduate students, young field microbiologists and research
scientists in academia, research institutes and industry.
This book provides the bird's eye view of the latest scientific
research centered around the importance of gut bacteria in
influencing our health and well-being and their impact on lifestyle
diseases. The scientific information is presented in an
easy-to-understand language while being interspersed with fun-facts
and anecdotal accounts, which entertain the audience while helping
them acquire this fundamental and relevant scientific knowledge.
The authors explain in a lay-person friendly terminology about the
role of gut bacteria in determining the state of both our physical
andmental well-being. The authors then share insights about the
role of gut bacteria in predisposition to various lifestyle
diseases such as diabetes, obesity, metabolic syndrome, and
response to stress, utilizing the latest published scientific
research in peer-reviewed journals. -"What are the gut bacteria?"
-"What are the various factors which affect their composition and
numbers?" "How do they perform such vital functions?" -"How do they
protect us from the biggest killers of today's mankind- the
lifestyle diseases?" -And most importantly, "how can we harness
this knowledge for our benefit?" This book answers these questions
in an easy language for readers without any background in biology.
The information provided in the book is useful to anyone who wants
to lead a healthy life. It is worth reading even for the health
care professionals as their current curriculum does not entail
extensive information about the gut-bacteria and their significance
in determining our health.
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