上泽充通大￥ Shanghai Jiao Tong University 1896 1920 1987 2006 Lecture 13-2 Metabolic Diversity:Chemolithotrophy Chapter 13in BROCK BIOLOGY OF MICROORGANISMS AUIAO TONG UNI Chen Feng School of Life Science and Biotechnology Shanghai Jiao Tong University
1896 1920 1987 2006 Lecture 13-2 Metabolic Diversity: Chemolithotrophy Chapter 13 in BROCK BIOLOGY OF MICROORGANISMS Chen Feng School of Life Science and Biotechnology Shanghai Jiao Tong University
上泽充通大￥ Shanghai Jiao Tong University 1896 1920 1987 2006 II.Chemolithotrophy:energy from the oxidation of inorganic electron donors 化能无机营养生物：通过氧化无机物而 获得能量
1896 1920 1987 2006 II. Chemolithotrophy: energy from the oxidation of inorganic electron donors 化能无机营养生物: 通过氧化无机物而 获得能量
13.6 The Energetics of Chemolithotrophy Chemolithotrophs are organisms that obtain energy from the oxidation of inorganic compounds化能无机 营养型 Many sources of reduced molecules exist in the environment环境中存在许多还原性分子，可作为其能量 来源 The oxidation of different reduced compounds yields varying amounts of energy不同还原性化合物氧 化后释放的能量大小不同 Chen Feng,Microbiology,SJTU
Chen Feng, Microbiology, SJTU 13.6 The Energetics of Chemolithotrophy Chemolithotrophs are organisms that obtain energy from the oxidation of inorganic compounds 化能无机 营养型 Many sources of reduced molecules exist in the environment 环境中存在许多还原性分子，可作为其能量 来源 The oxidation of different reduced compounds yields varying amounts of energy 不同还原性化合物氧 化后释放的能量大小不同
Autotrophic or Mixotrophic Autotrophic chemolithotrophs:obtain their carbon from CO,化能无机自养生物 Mixotrophic chemolithotrophs:obtain energy form an inorganic compound,but require an organic compound as carbon source.化能无机异养营养生物：能量来自无机 物，但碳源来自有机物 Chen Feng,Microbiology,SJTU
Chen Feng, Microbiology, SJTU Autotrophic or Mixotrophic Autotrophic chemolithotrophs: obtain their carbon from CO2.化能无机自养生物 Mixotrophic chemolithotrophs: obtain energy form an inorganic compound, but require an organic compound as carbon source. 化能无机异养营养生物:能量来自无机 物, 但碳源来自有机物
Inorganic electron donors and energetics 无机电子供体 ATP formation:oxidation of inorganic compounds ATP的形成：来自无机物的氧化 Example:Hydrogen oxidation/reduced sulfur compounds oxidation/iron oxidation/ nitrification ©Carbon sources From the organic compound (mixotrophic) Reducing power for CO2 fixation:Reverse electron transport reactions(autotrophic) Chen Feng,Microbiology,SJTU
Chen Feng, Microbiology, SJTU Inorganic electron donors and energetics 无机电子供体 ATP formation: oxidation of inorganic compounds ATP的形成:来自无机物的氧化 • Example: Hydrogen oxidation/ reduced sulfur compounds oxidation/ iron oxidation/ nitrification Carbon sources • From the organic compound (mixotrophic) • Reducing power for CO2 fixation: Reverse electron transport reactions (autotrophic)