Behaviour of Micro-organisms

Behaviour of Micro-organisms

Author: A. Perez-Miravete

Publisher: Springer Science & Business Media

Published: 2012-12-06

Total Pages: 315

ISBN-13: 1468419625

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Organisms are constantly being bombarded by stimuli in their envi ronment (and also by internal stimuli), and a common way of responding is by movement. This is an aspect of irritability, or excitability, or behaviour. Response to stimuli by movement is found in all organisms: it represents one of the universalities of biology. Yet at the molecular level it is one of the least understood of biological phenomena. Micro-organisms are no exception. If motile, they respond to stimuli by active movement (taxis); if sessile, they respond by growth movements (tropisms). Responses by movement are known among micro-organisms to such stimuli as chemicals, electric current, gravity, light, temperature, touch, and vibrations. The behaviour of micro-organisms is an exciting subject, first of all for its own sake, but in addition because it may reveal facts and concepts that are applicable to understanding behaviour in more complicated organisms (even us) and because it may, help to understand the movement of cells and tissues during differentiation and development of higher plants and animals.


Book Synopsis Behaviour of Micro-organisms by : A. Perez-Miravete

Download or read book Behaviour of Micro-organisms written by A. Perez-Miravete and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 315 pages. Available in PDF, EPUB and Kindle. Book excerpt: Organisms are constantly being bombarded by stimuli in their envi ronment (and also by internal stimuli), and a common way of responding is by movement. This is an aspect of irritability, or excitability, or behaviour. Response to stimuli by movement is found in all organisms: it represents one of the universalities of biology. Yet at the molecular level it is one of the least understood of biological phenomena. Micro-organisms are no exception. If motile, they respond to stimuli by active movement (taxis); if sessile, they respond by growth movements (tropisms). Responses by movement are known among micro-organisms to such stimuli as chemicals, electric current, gravity, light, temperature, touch, and vibrations. The behaviour of micro-organisms is an exciting subject, first of all for its own sake, but in addition because it may reveal facts and concepts that are applicable to understanding behaviour in more complicated organisms (even us) and because it may, help to understand the movement of cells and tissues during differentiation and development of higher plants and animals.


Behaviour of Micro-Organisms

Behaviour of Micro-Organisms

Author: M. A. Perer

Publisher:

Published: 1996

Total Pages:

ISBN-13:

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Book Synopsis Behaviour of Micro-Organisms by : M. A. Perer

Download or read book Behaviour of Micro-Organisms written by M. A. Perer and published by . This book was released on 1996 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:


Behaviour of Micro-organisms

Behaviour of Micro-organisms

Author: A. Perez-Miravete

Publisher:

Published: 1973

Total Pages: 301

ISBN-13: 9781468419634

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Book Synopsis Behaviour of Micro-organisms by : A. Perez-Miravete

Download or read book Behaviour of Micro-organisms written by A. Perez-Miravete and published by . This book was released on 1973 with total page 301 pages. Available in PDF, EPUB and Kindle. Book excerpt:


Behaviour of Micro-Organisms

Behaviour of Micro-Organisms

Author: Miravete Perez A.

Publisher:

Published: 1970

Total Pages:

ISBN-13:

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Book Synopsis Behaviour of Micro-Organisms by : Miravete Perez A.

Download or read book Behaviour of Micro-Organisms written by Miravete Perez A. and published by . This book was released on 1970 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:


The Social Biology of Microbial Communities

The Social Biology of Microbial Communities

Author: Institute of Medicine

Publisher: National Academies Press

Published: 2013-01-10

Total Pages: 633

ISBN-13: 0309264324

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Beginning with the germ theory of disease in the 19th century and extending through most of the 20th century, microbes were believed to live their lives as solitary, unicellular, disease-causing organisms . This perception stemmed from the focus of most investigators on organisms that could be grown in the laboratory as cellular monocultures, often dispersed in liquid, and under ambient conditions of temperature, lighting, and humidity. Most such inquiries were designed to identify microbial pathogens by satisfying Koch's postulates.3 This pathogen-centric approach to the study of microorganisms produced a metaphorical "war" against these microbial invaders waged with antibiotic therapies, while simultaneously obscuring the dynamic relationships that exist among and between host organisms and their associated microorganisms-only a tiny fraction of which act as pathogens. Despite their obvious importance, very little is actually known about the processes and factors that influence the assembly, function, and stability of microbial communities. Gaining this knowledge will require a seismic shift away from the study of individual microbes in isolation to inquiries into the nature of diverse and often complex microbial communities, the forces that shape them, and their relationships with other communities and organisms, including their multicellular hosts. On March 6 and 7, 2012, the Institute of Medicine's (IOM's) Forum on Microbial Threats hosted a public workshop to explore the emerging science of the "social biology" of microbial communities. Workshop presentations and discussions embraced a wide spectrum of topics, experimental systems, and theoretical perspectives representative of the current, multifaceted exploration of the microbial frontier. Participants discussed ecological, evolutionary, and genetic factors contributing to the assembly, function, and stability of microbial communities; how microbial communities adapt and respond to environmental stimuli; theoretical and experimental approaches to advance this nascent field; and potential applications of knowledge gained from the study of microbial communities for the improvement of human, animal, plant, and ecosystem health and toward a deeper understanding of microbial diversity and evolution. The Social Biology of Microbial Communities: Workshop Summary further explains the happenings of the workshop.


Book Synopsis The Social Biology of Microbial Communities by : Institute of Medicine

Download or read book The Social Biology of Microbial Communities written by Institute of Medicine and published by National Academies Press. This book was released on 2013-01-10 with total page 633 pages. Available in PDF, EPUB and Kindle. Book excerpt: Beginning with the germ theory of disease in the 19th century and extending through most of the 20th century, microbes were believed to live their lives as solitary, unicellular, disease-causing organisms . This perception stemmed from the focus of most investigators on organisms that could be grown in the laboratory as cellular monocultures, often dispersed in liquid, and under ambient conditions of temperature, lighting, and humidity. Most such inquiries were designed to identify microbial pathogens by satisfying Koch's postulates.3 This pathogen-centric approach to the study of microorganisms produced a metaphorical "war" against these microbial invaders waged with antibiotic therapies, while simultaneously obscuring the dynamic relationships that exist among and between host organisms and their associated microorganisms-only a tiny fraction of which act as pathogens. Despite their obvious importance, very little is actually known about the processes and factors that influence the assembly, function, and stability of microbial communities. Gaining this knowledge will require a seismic shift away from the study of individual microbes in isolation to inquiries into the nature of diverse and often complex microbial communities, the forces that shape them, and their relationships with other communities and organisms, including their multicellular hosts. On March 6 and 7, 2012, the Institute of Medicine's (IOM's) Forum on Microbial Threats hosted a public workshop to explore the emerging science of the "social biology" of microbial communities. Workshop presentations and discussions embraced a wide spectrum of topics, experimental systems, and theoretical perspectives representative of the current, multifaceted exploration of the microbial frontier. Participants discussed ecological, evolutionary, and genetic factors contributing to the assembly, function, and stability of microbial communities; how microbial communities adapt and respond to environmental stimuli; theoretical and experimental approaches to advance this nascent field; and potential applications of knowledge gained from the study of microbial communities for the improvement of human, animal, plant, and ecosystem health and toward a deeper understanding of microbial diversity and evolution. The Social Biology of Microbial Communities: Workshop Summary further explains the happenings of the workshop.


Life at small scale

Life at small scale

Author: David B. Dusenbery

Publisher:

Published: 1996

Total Pages: 214

ISBN-13:

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In Life at Small Scale, noted biophysicist David B. Dusenbery describes how microbes obtain and use information from their environments to meet the fundamental challenges all organisms face - getting food, avoiding predators and competitors, and dispersing progeny. As Dusenbery demonstrates, these organisms are hardly as simple as is often presumed. Despite their size (or rather because of it), microbes develop some surprisingly complex behaviors, all in response to the physical demands of the worlds they inhabit. Thus the pages of this captivating, richly illustrated volume are filled with descriptions of organisms that have devised remarkably sophisticated, often bizarre ways of moving, navigating, communicating, eating, resisting enemies, besting rivals, and reproducing. From fungi that launch their spores as projectiles, to "magnetic" bacteria that align like compass needles with the Earth's magnetic field, to the microbes that disperse when we sneeze, Life at Small Scale introduces an intriguing cast of characters, exploring their lives and environments in exquisite detail. It also shows how knowledge gained from the study of microbes helps us understand life on human and global scales as well. Here then is definite proof: there is more to life than what meets the eye.


Book Synopsis Life at small scale by : David B. Dusenbery

Download or read book Life at small scale written by David B. Dusenbery and published by . This book was released on 1996 with total page 214 pages. Available in PDF, EPUB and Kindle. Book excerpt: In Life at Small Scale, noted biophysicist David B. Dusenbery describes how microbes obtain and use information from their environments to meet the fundamental challenges all organisms face - getting food, avoiding predators and competitors, and dispersing progeny. As Dusenbery demonstrates, these organisms are hardly as simple as is often presumed. Despite their size (or rather because of it), microbes develop some surprisingly complex behaviors, all in response to the physical demands of the worlds they inhabit. Thus the pages of this captivating, richly illustrated volume are filled with descriptions of organisms that have devised remarkably sophisticated, often bizarre ways of moving, navigating, communicating, eating, resisting enemies, besting rivals, and reproducing. From fungi that launch their spores as projectiles, to "magnetic" bacteria that align like compass needles with the Earth's magnetic field, to the microbes that disperse when we sneeze, Life at Small Scale introduces an intriguing cast of characters, exploring their lives and environments in exquisite detail. It also shows how knowledge gained from the study of microbes helps us understand life on human and global scales as well. Here then is definite proof: there is more to life than what meets the eye.


Microbiomes of the Built Environment

Microbiomes of the Built Environment

Author: National Academies of Sciences, Engineering, and Medicine

Publisher: National Academies Press

Published: 2017-10-06

Total Pages: 318

ISBN-13: 0309449839

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People's desire to understand the environments in which they live is a natural one. People spend most of their time in spaces and structures designed, built, and managed by humans, and it is estimated that people in developed countries now spend 90 percent of their lives indoors. As people move from homes to workplaces, traveling in cars and on transit systems, microorganisms are continually with and around them. The human-associated microbes that are shed, along with the human behaviors that affect their transport and removal, make significant contributions to the diversity of the indoor microbiome. The characteristics of "healthy" indoor environments cannot yet be defined, nor do microbial, clinical, and building researchers yet understand how to modify features of indoor environmentsâ€"such as building ventilation systems and the chemistry of building materialsâ€"in ways that would have predictable impacts on microbial communities to promote health and prevent disease. The factors that affect the environments within buildings, the ways in which building characteristics influence the composition and function of indoor microbial communities, and the ways in which these microbial communities relate to human health and well-being are extraordinarily complex and can be explored only as a dynamic, interconnected ecosystem by engaging the fields of microbial biology and ecology, chemistry, building science, and human physiology. This report reviews what is known about the intersection of these disciplines, and how new tools may facilitate advances in understanding the ecosystem of built environments, indoor microbiomes, and effects on human health and well-being. It offers a research agenda to generate the information needed so that stakeholders with an interest in understanding the impacts of built environments will be able to make more informed decisions.


Book Synopsis Microbiomes of the Built Environment by : National Academies of Sciences, Engineering, and Medicine

Download or read book Microbiomes of the Built Environment written by National Academies of Sciences, Engineering, and Medicine and published by National Academies Press. This book was released on 2017-10-06 with total page 318 pages. Available in PDF, EPUB and Kindle. Book excerpt: People's desire to understand the environments in which they live is a natural one. People spend most of their time in spaces and structures designed, built, and managed by humans, and it is estimated that people in developed countries now spend 90 percent of their lives indoors. As people move from homes to workplaces, traveling in cars and on transit systems, microorganisms are continually with and around them. The human-associated microbes that are shed, along with the human behaviors that affect their transport and removal, make significant contributions to the diversity of the indoor microbiome. The characteristics of "healthy" indoor environments cannot yet be defined, nor do microbial, clinical, and building researchers yet understand how to modify features of indoor environmentsâ€"such as building ventilation systems and the chemistry of building materialsâ€"in ways that would have predictable impacts on microbial communities to promote health and prevent disease. The factors that affect the environments within buildings, the ways in which building characteristics influence the composition and function of indoor microbial communities, and the ways in which these microbial communities relate to human health and well-being are extraordinarily complex and can be explored only as a dynamic, interconnected ecosystem by engaging the fields of microbial biology and ecology, chemistry, building science, and human physiology. This report reviews what is known about the intersection of these disciplines, and how new tools may facilitate advances in understanding the ecosystem of built environments, indoor microbiomes, and effects on human health and well-being. It offers a research agenda to generate the information needed so that stakeholders with an interest in understanding the impacts of built environments will be able to make more informed decisions.


Mammalian Brain Development

Mammalian Brain Development

Author: Damir Janigro

Publisher: Springer Science & Business Media

Published: 2009-09-18

Total Pages: 227

ISBN-13: 1607612879

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Denis Noble Nearly a decade after completion of the first draft of the entire Human Genome sequence we are in a better position to assess the nature and the consequences of that heroic achievement, which can be seen as the culmination of the molecular biological revolution of the second half of the twentieth century. The achievement itself was celebrated at the highest levels (President and Prime Minister) on both sides of the Atlantic, and rightly so. DNA sequencing has become sufficiently c- mon now, even to the extent of being used in law courts, that it is easy to forget how technically difficult it was and how cleverly the sequencing teams solved those problems in the exciting race to finish by the turn of the century [1, 2]. The fanfares were misplaced, however, in an important respect. The metaphors used to describe the project and its biological significance gave the impression to the public at large, and to many scientists themselves, that this sequence would reveal the secrets of life. DNA had already been likened to a computer program [3]. The “genetic program” for life was therefore to be found in those sequences: A kind of map that had simply to be unfolded during development. The even more colo- ful “book of life” metaphor gave the promise that reading that book would lead to a veritable outpouring of new cures for diseases, hundreds of new drug targets, and a brave new world of medicine.


Book Synopsis Mammalian Brain Development by : Damir Janigro

Download or read book Mammalian Brain Development written by Damir Janigro and published by Springer Science & Business Media. This book was released on 2009-09-18 with total page 227 pages. Available in PDF, EPUB and Kindle. Book excerpt: Denis Noble Nearly a decade after completion of the first draft of the entire Human Genome sequence we are in a better position to assess the nature and the consequences of that heroic achievement, which can be seen as the culmination of the molecular biological revolution of the second half of the twentieth century. The achievement itself was celebrated at the highest levels (President and Prime Minister) on both sides of the Atlantic, and rightly so. DNA sequencing has become sufficiently c- mon now, even to the extent of being used in law courts, that it is easy to forget how technically difficult it was and how cleverly the sequencing teams solved those problems in the exciting race to finish by the turn of the century [1, 2]. The fanfares were misplaced, however, in an important respect. The metaphors used to describe the project and its biological significance gave the impression to the public at large, and to many scientists themselves, that this sequence would reveal the secrets of life. DNA had already been likened to a computer program [3]. The “genetic program” for life was therefore to be found in those sequences: A kind of map that had simply to be unfolded during development. The even more colo- ful “book of life” metaphor gave the promise that reading that book would lead to a veritable outpouring of new cures for diseases, hundreds of new drug targets, and a brave new world of medicine.


Predictive Microbiology

Predictive Microbiology

Author: Thomas Alexander McMeekin

Publisher: Wiley-Blackwell

Published: 1993

Total Pages: 368

ISBN-13:

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Four authors with backgrounds in food microbiology, food chemistry, mathematics, and statistics, explain how techniques of predictive microbiology can allow an objective evaluation of the effects of processing, distribution, and storage on the microbiological safety and quality of foods. The trick is to understand the microbial ecology of a process or of a food at a particular point in the chain, then use mathematical relationships between microbial growth and the expected environmental conditions, to predict the growth or survival of selected organisms. Annotation copyright by Book News, Inc., Portland, OR


Book Synopsis Predictive Microbiology by : Thomas Alexander McMeekin

Download or read book Predictive Microbiology written by Thomas Alexander McMeekin and published by Wiley-Blackwell. This book was released on 1993 with total page 368 pages. Available in PDF, EPUB and Kindle. Book excerpt: Four authors with backgrounds in food microbiology, food chemistry, mathematics, and statistics, explain how techniques of predictive microbiology can allow an objective evaluation of the effects of processing, distribution, and storage on the microbiological safety and quality of foods. The trick is to understand the microbial ecology of a process or of a food at a particular point in the chain, then use mathematical relationships between microbial growth and the expected environmental conditions, to predict the growth or survival of selected organisms. Annotation copyright by Book News, Inc., Portland, OR


Microorganisms in Foods

Microorganisms in Foods

Author: Fred S. Thatcher

Publisher:

Published: 1968

Total Pages: 258

ISBN-13:

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Book Synopsis Microorganisms in Foods by : Fred S. Thatcher

Download or read book Microorganisms in Foods written by Fred S. Thatcher and published by . This book was released on 1968 with total page 258 pages. Available in PDF, EPUB and Kindle. Book excerpt: