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Holland 1987 Blackie

From Bioblast
Publications in the MiPMap
Holland KT, Knapp JS, Shouesmith JG (1987) Anaerobic bacteria. Blackie, Glasgow and London 206 pp.

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Holland KT, Knapp JS, Shouesmith JG (1987) Blackie, Glasgow and London

Abstract: This book is appropriate for advanced undergraduate students of micro biology and biological sciences in universities and colleges, as well as for research workers entering the field and requiring a broad contemporary view of anaerobic bacteria and associated concepts. Obligate anaerobes, together with microaerophils, are characterized by their sensitivity to oxygen. This dictates specialized laboratory methods a fact which has led to many students being less familiar with anaerobes than their distribution and importance would warrant The metabolic strategies such as methanogenesis, an oxygenic photosynthesis and diverse fermenta tive pathways which do not have equivalents in aerobic bacteria also make anaerobes worthy of attention. In these limited pages an attempt has been made to cover the varied aspects of anaerobic bacteria, and a bibliography has been included, which will allow individual topics to be pursued in greater detail.

β€’ Bioblast editor: Gnaiger E

Selected quotes

  • Such anaerobic life is almost entirely bacterial and ideed most prokaryotic species, unlike most eukaryotees, are capable of prolonged growth in the complete absence of oxygen. Many of these organisms, such as Escherichia coli, grow more efficiently in the presence of oxygen and are facultative anaerobes. .. There are, however, large numbers of bacteria, such as the clostridia, which readly grow anaerobically, but are unable to utilize oxygen productively, and in addition are inhibited or even killed by oxygen. These are the obligate anaerobes.. . In addition, there is increasing awareness of the prevalence of microaerophilic bacteria. These are more difficult to recognize, since they are inhibited by atmospheric oxygen concentrations and therefore resemble obligate anaerobes, but their growth is also stimulated by low oxygen concentrations.
  • A physiologically based definition might involve the inability of the obligate anaerobe to metabolize oxygen usefully with consequent increased growth, and the term anoxybiontic has been used to describe this situation.
  • Although oxygen restricts the growth of anaerobes to oxygen-deficient environments, where other life forms are at a disadvantage, such environments are not extreme in the same way as those at high temperatures or high salinity, where only restricted ranges of organisms grow. For microbes anaerobic niches are commonplace and nutritionally diverse, and the variety of anaerobes is great. Anoxia is therefore an extreme environment only to the laboratory worker, who must use special methods for the cultivation of anaerobes ..


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