After reading this article you will learn about the symbiotic and non-symbiotic nitrogen fixing bacteria. Symbiotic N2-Fixing Bacteria: The heterotrophic bacteria that fix di-nitrogen gas (N2) from the atmosphere in plant root nodules (symbiotic bacteria) have a mutually beneficial relationship with their host plants. Legumes (pod-bearing plants such as peas, beans, alfalfa and clovers etc.) […]
Symbiotic and Non-Symbiotic Nitrogen Fixing Bacteria
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Reproduction in Bacteria and Its Processes
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After reading this article you will learn about the reproduction of bacteria and its processes. Reproduction of Bacteria: All growing cells must divide. Most bacteria multiply by transverse, binary fission, in which a single cell divides in two after developing a transverse cell wall. Within a short period, often as short as 20 minutes, a […]
4 Main Growth Characteristics of a Pure Culture of Bacteria
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This article throws light upon the four main growth characteristics of a pure culture of bacteria. The growth characteristics are: 1. Colonies on Agar Media 2. Growth on Agar Slants 3. Growth in Gelatin or Agar Stabs 4. Growth in Broth. Pure Culture: Characteristic # 1. Colonies on Agar Media: The bacterial culture is mixed […]