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 with gelatin or agar melted [...]
This article throws light upon the eight main phases in which the growth curve of bacteria is divided. The phases are: 1. 1. Initial Stationary 2. Accelerated Growth 3. Logarithmic Growth 4. Decreasing Growth Rate 5. Maximum Stationary 6. Increasing Death Rate 7. Logarithmic Death 8. Survival or Decreasing Growth Rate. Phase # 1. Initial Stationary: This phase is characterized [...]
After reading this article you will learn about the continuous culture of micro-organisms. The typical bacterial growth curve includes three transitional periods between growth phases. This means that not all the cells are in identical physiological conditions. Time is required for some cells to catch up with others. In terms of physiological conditions, the growth curve includes young, actively metabolizing [...]