Chapter8 Microbial genetics 8.4 Plasmids 8.5 Genetic Conjugation, Transformation, transduction 8.6 Transposons and Insertion Sequences

Microbial molecular biology and genetics A clone: a population of cells that are derived asexually from a parental cell and are genetically identical. Genome: all the genes present in cell or virus. Central dogma:dna→rna→ protein transcription translation

1.1 研究内容 1.2 发展历史 1.3 应用举例 1.4 当前研究动态

7.1 An overview of metabolism Metabolism may be divided into two major parts: catabolism and anabolism. Catabolism: larger and more Waste products complex molecules are broken Nutrients Biosynthesis down into smaller, simpler Energy molecules with the release of for growth energy

一、复习 二、观察分析忍考 三、引入新课内容

Effect of environmental factors on growth Water availability, pH, temperature, oxygen concentration, pressure, radiation, and a number of other environmental factors influence microbial growth. Yet many microorganisms, and particularly bacteria, have managed to adapt and flourish under environmental extremes that would destroy most organisms

一、微生物的纯培养技术。 1、 分离菌种： 2、 培养：移接至斜面

Important Persons in Microbiology History 1684 Antonie van Leeuwenhoek (discovery of bacteria) 1857-1864 Louis Pasteur (lactic acid fermentation, yeast alcohol fermentation, spontaneous generation theory “swan neck flasks”) 1881-1884 Robert Koch (pure culture, cause of tuberculosis, Koch’s postulates, cause of (霍乱) cholera）

代谢（metabolism）： 细胞内发生的各种化学反应的总称 代谢 分解代谢(catabolism) 合成代谢(anabolism)

Chapter 10 Microbial Ecology 10.1 Microorganisms in nature ecosystem 10.2 Microbial population interactions 10.3 Biogeochemical cycles 10.4 Plant-microbe interactions 10.5 Bioremediation