by Published for the Society for General Microbiology by Academic Press in London, Orlando .
Written in English
|Statement||edited by Madilyn Fletcher, George D. Floodgate.|
|Series||Special publications of the Society for General Microbiology ;, 16|
|Contributions||Fletcher, Madilyn., Floodgate, George D., Society for General Microbiology. Ecology Group., Society for General Microbiology. Meeting|
|LC Classifications||QR86 .B29 1985|
|The Physical Object|
|Pagination||x, 196 p. :|
|Number of Pages||196|
|LC Control Number||85013428|
In their natural environment, MC-1 cells, each containing a chain of magnetic iron-oxide nanocrystals 5, tend to swim along local magnetic field lines Cited by: Bacteria - Bacteria - Evolution of bacteria: Bacteria have existed from very early in the history of life on Earth. Bacteria fossils discovered in rocks date from at least the Devonian Period ( million to million years ago), and there are convincing arguments that bacteria have been present since early Precambrian time, about billion years ago. Bacteria - Bacteria - Physical requirements: The physical requirements that are optimal for bacterial growth vary dramatically for different bacterial types. As a group, bacteria display the widest variation of all organisms in their ability to inhabit different environments. Some of the most prominent factors are described in the following sections. The book defines the important microorganisms that are involved in environmental microbiology, the nature of the different possible environments in which they are situated, the methodologies used to monitor microorganisms and their activities, and the possible effects of microorganisms on human activities.
Bacteria: Life History and Ecology. Bacteria grow in a wide variety of habitats and conditions. When most people think of bacteria, they think of disease-causing organisms, like the Streptococcus bacteria growing in culture in this picture, which were isolated from a man with strep throat. While pathogenic bacteria are notorious for such diseases as cholera, tuberculosis, and gonorrhea, such. Not all bacteria are harmful, and some bacteria that live in your body are helpful. For instance, Lactobacillus acidophilus — a harmless bacterium that resides in your intestines — helps you digest food, destroys some disease-causing organisms and provides nutrients. Bacteria grow in very diverse conditions, which explains why they are found nearly everywhere on Earth. Although bacteria are good at adapting to their environments, certain conditions promote bacterial growth more than others. These conditions include temperature, moisture, pH and environmental oxygen. Observations on the distinction between oligotrophic and eutrophic marine bacteria. Appl Environ Microbiol. May; 47 (5)– [PMC free article] [Google Scholar] Meyer-Reil LA. Autoradiography and epifluorescence microscopy combined for the determination of number and spectrum of actively metabolizing bacteria in natural water.
Bacteria are any of a very large group of single-celled microorganisms that display a wide range of metabolic types, geometric shapes and environmental habitats—and niches—of occurrence. Normally only several micrometers in length, bacteria assume the form of spheres, rods, spirals and other shapes. Bacteria are found in a very broad gamut of habitats; for example, bacterial . The purpose of this book is to illustrate a selection of biological prop erties of bacteria that reveal them as important living beings. We have primarily addressed readers who have had some previous educa tion in the natural sciences, and we have assumed a modest under standing of elementary chemical and biological principles. Acidic environments have pH values that are less that 7, neutral environments have values at or near 7, and basic environments have pH values greater than 7. Bacteria that are acidophiles thrive in areas where the pH is less than 5, with an optimal growth value close to a pH of 3. A Look at The Positive Effects Of Connecting With Nature. Author Richard Louv mentioned ‘Nature-Deficit Disorder’ in his famous book ‘Last Child In The Woods.’. According to Louv, nature-deficit disorder is not the presence of an anomaly in the brain; it is the loss of connection of humans to their natural environment.