Endospore-forming Soil Bacteria

Endospore-forming Soil Bacteria PDF

Author: Niall A. Logan

Publisher: Springer Science & Business Media

Published: 2011-07-06

Total Pages: 353

ISBN-13: 3642195776

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Aerobic endospore-forming bacteria are found in soils of all kinds, ranging from acid to alkaline, hot to cold, and fertile to desert. It is well known that endospores confer special properties upon their owners and play dominant parts in their life cycles and dispersal, and much has been written about the spores, genetics, and economic importance of these organisms. Much has also been written about soil ecology, but there is a relative dearth of literature that brings together different aspects of the behaviour and characters of endospore-formers with their contributions to soil ecosystems. This Soil Biology volume fills that gap. Following chapters that describe the current classification of these organisms, that review methods for their detection and for studying their life cycles in soils, and that examine their dispersal, other chapters show that they are active and dynamic members of soil floras that interact widely with other soil inhabitants, with roles in nitrogen fixation, denitrification, and soil remediation.

Fate of Nonindigenous, Endospore-Forming Bacteria in Soils. Strategies for Laboratory and Field Investigations

Fate of Nonindigenous, Endospore-Forming Bacteria in Soils. Strategies for Laboratory and Field Investigations PDF

Author:

Publisher:

Published: 2003

Total Pages: 38

ISBN-13:

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Persistence of nonindigenous microorganisms released onto soils or into natural environments can have a significant impact on Department of Defense (DoD) operations. An understanding of competition among various microbial communities is necessary to accurately predict the types of microorganisms that will flourish as well as those that will wane under differing environmental scenarios. In the past, soil microbiology was altered with brute-force techniques such as the saturation of a soil with a decontamination agent. An approach that is more feasible for large areas is to alter soil conditions to promote the desired microbial status or to effectively predict their fate in field conditions. Ultimately, the ability to accurately predict the occurrence of a dominant microbial community will be useful both for predicting the fate of pathogens in the environment and for fostering success in the bioremediation of soils and sediments. Bacillus globigii (BO) was selected to investigate the persistence and fate of nonindigenous bacteria released onto soils. We were able to differentiate BO from indigenous bacteria by combining culturing techniques with lipid-based validation. Enrichment on agar plates produced bright orange BO colonies that were clearly distinct from native microorganisms. These data suggest that there is either an initial loss in viability or an inability to recover 10-15% of the BG soon after inoculation onto the soil.

Microbiology in Dairy Processing

Microbiology in Dairy Processing PDF

Author: Palmiro Poltronieri

Publisher: John Wiley & Sons

Published: 2017-11-29

Total Pages: 345

ISBN-13: 1119114802

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An authoritative guide to microbiological solutions to common challenges encountered in the industrial processing of milk and the production of milk products Microbiology in Dairy Processing offers a comprehensive introduction to the most current knowledge and research in dairy technologies and lactic acid bacteria (LAB) and dairy associated species in the fermentation of dairy products. The text deals with the industrial processing of milk, the problems solved in the industry, and those still affecting the processes. The authors explore culture methods and species selective growth media, to grow, separate, and characterize LAB and dairy associated species, molecular methods for species identification and strains characterization, Next Generation Sequencing for genome characterization, comparative genomics, phenotyping, and current applications in dairy and non-dairy productions. In addition, Microbiology in Dairy Processing covers the Lactic Acid Bacteria and dairy associated species (the beneficial microorganisms used in food fermentation processes): culture methods, phenotyping, and proven applications in dairy and non-dairy productions. The text also reviews the potential future exploitation of the culture of novel strains with useful traits such as probiotics, fermentation of sugars, metabolites produced, bacteriocins. This important resource: Offers solutions both established and novel to the numerous challenges commonly encountered in the industrial processing of milk and the production of milk products Takes a highly practical approach, tackling the problems faced in the workplace by dairy technologists Covers the whole chain of dairy processing from milk collection and storage though processing and the production of various cheese types Written for laboratory technicians and researchers, students learning the protocols for LAB isolation and characterisation, Microbiology in Dairy Processing is the authoritative reference for professionals and students.

Extremophiles as Astrobiological Models

Extremophiles as Astrobiological Models PDF

Author: Joseph Seckbach

Publisher: John Wiley & Sons

Published: 2021-01-13

Total Pages: 416

ISBN-13: 1119591686

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The data in this book are new or updated, and will serve also as Origin of Life and evolutionary studies. Endospores of bacteria have a long history of use as model organisms in astrobiology, including survival in extreme environments and interplanetary transfer of life. Numerous other bacteria as well as archaea, lichens, fungi, algae and tiny animals (tardigrades, or water bears) are now being investigated for their tolerance to extreme conditions in simulated or real space environments. Experimental results from exposure studies on the International Space Station and space probes for up to 1.5 years are presented and discussed. Suggestions for extaterrestrial energy sources are also indicated. Audience Researchers and graduate students in microbiology, biochemistry, molecular biology and astrobiology, as well as anyone interested in the search for extraterrestrial life and its technical preparations.

Bacterial Spore Formers

Bacterial Spore Formers PDF

Author: Ezio Ricca

Publisher: Taylor & Francis

Published: 2004

Total Pages: 244

ISBN-13: 9781904933021

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This comprehensive book describes in detail the most topical emerging areas of scientific importance involving the use of spores and covers their use as probiotics in humans and animals and also with plants. In addition authors present the emerging use of the spore as a tool for nanobiotechnology where the spore can be used for the efficient display of heterologous proteins on the spore surface. The use of this technology and systematics of spore forming bacteria, and the architecture and assembly of spores. The innovative topics covered in this book will be of particular interest to scientists working in all areas of probiotic research and vaccine technology and is recommended reading for microbiologists involved with Bacillus spp. and other spore forming bacteria.

Handbook on Clostridia

Handbook on Clostridia PDF

Author: Peter Duerre

Publisher: CRC Press

Published: 2005-03-29

Total Pages: 1571

ISBN-13: 113550198X

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Clostridia is one of the largest bacterial genera with an enormous potential for biotechnical and medical applications. Despite growing scientific, medical, and industrial interest, information on basic methods, biochemical fundamentals, clinical practice, industrial applications, and novel developments remains scattered in a variety of research ar

Size Limits of Very Small Microorganisms

Size Limits of Very Small Microorganisms PDF

Author: National Research Council

Publisher: National Academies Press

Published: 1999-10-13

Total Pages: 171

ISBN-13: 0309066344

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How small can a free-living organism be? On the surface, this question is straightforward-in principle, the smallest cells can be identified and measured. But understanding what factors determine this lower limit, and addressing the host of other questions that follow on from this knowledge, require a fundamental understanding of the chemistry and ecology of cellular life. The recent report of evidence for life in a martian meteorite and the prospect of searching for biological signatures in intelligently chosen samples from Mars and elsewhere bring a new immediacy to such questions. How do we recognize the morphological or chemical remnants of life in rocks deposited 4 billion years ago on another planet? Are the empirical limits on cell size identified by observation on Earth applicable to life wherever it may occur, or is minimum size a function of the particular chemistry of an individual planetary surface? These questions formed the focus of a workshop on the size limits of very small organisms, organized by the Steering .Group for the Workshop on Size Limits of Very Small Microorganisms and held on October 22 and 23, 1998. Eighteen invited panelists, representing fields ranging from cell biology and molecular genetics to paleontology and mineralogy, joined with an almost equal number of other participants in a wide-ranging exploration of minimum cell size and the challenge of interpreting micro- and nano-scale features of sedimentary rocks found on Earth or elsewhere in the solar system. This document contains the proceedings of that workshop. It includes position papers presented by the individual panelists, arranged by panel, along with a summary, for each of the four sessions, of extensive roundtable discussions that involved the panelists as well as other workshop participants.

Food Borne Pathogens and Antibiotic Resistance

Food Borne Pathogens and Antibiotic Resistance PDF

Author: Om V. Singh

Publisher: John Wiley & Sons

Published: 2017-01-30

Total Pages: 516

ISBN-13: 1119139155

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Food is an essential means for humans and other animals to acquire the necessary elements needed for survival. However, it is also a transport vehicle for foodborne pathogens, which can pose great threats to human health. Use of antibiotics has been enhanced in the human health system; however, selective pressure among bacteria allows the development for antibiotic resistance. Foodborne Pathogens and Antibiotic Resistance bridges technological gaps, focusing on critical aspects of foodborne pathogen detection and mechanisms regulating antibiotic resistance that are relevant to human health and foodborne illnesses This groundbreaking guide: • Introduces the microbial presence on variety of food items for human and animal consumption. • Provides the detection strategies to screen and identify the variety of food pathogens in addition to reviews the literature. • Provides microbial molecular mechanism of food spoilage along with molecular mechanism of microorganisms acquiring antibiotic resistance in food. • Discusses systems biology of food borne pathogens in terms of detection and food spoilage. • Discusses FDA’s regulations and Hazard Analysis and Critical Control Point (HACCP) towards challenges and possibilities of developing global food safety. Foodborne Pathogens and Antibiotic Resistance is an immensely useful resource for graduate students and researchers in the food science, food microbiology, microbiology, and industrial biotechnology.

Bacterial Pathogens and Their Virulence Factors

Bacterial Pathogens and Their Virulence Factors PDF

Author: Douglas I. Johnson

Publisher: Springer

Published: 2017-11-23

Total Pages: 451

ISBN-13: 3319676512

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Bacterial Pathogens and their Virulence Factors contains a detailed description of 32 major bacterial pathogens that affect human health and their associated virulence determinants. Chapter 1 gives an overview of the different types and classes of general virulence factors involved in host cell adherence and invasion, dissemination within the host, host cell damage, and evasion of host defense systems, as well as mechanisms by which these virulence factors are regulated. Chapters 2 through 33 give concise descriptions of the disease states associated with the 32 bacterial genera and their major pathogenic species, along with an in-depth description of the individual virulence factors that have been found to be functionally involved in pathogenicity. A detailed bibliography derived from primary literature and review articles accompanies each of these chapters, allowing the reader to delve more deeply into individual pathogens and their virulence determinants. Chapter 34 discusses the exciting possibilities and initial successes of using detailed information on a pathogen’s virulence toolkit to design new therapeutics aimed at specific virulence traits.