上泽文通大学 Shanghai Jiao Tong University 1896 1920 1987 2006 Lecture 16-1 Microbial Evolution and Systematics 微生物演化与系统分类 Chapter 16 in BROCK BIOLOGY OF MICROORGANISMS ALIAO TONG UNI Chen Feng School of Life Science and Technology, Shanghai Jiao Tong University
1896 1920 1987 2006 Lecture 16-1 Microbial Evolution and Systematics 微生物演化与系统分类 Chen Feng School of Life Science and Technology, Shanghai Jiao Tong University Chapter 16 in BROCK BIOLOGY OF MICROORGANISMS
Preface The evolutionary history of prokaryotes mirrors the evolutionary history of Earth itself Of the 4.6 billion years that Earth has existed, prokaryotes have thrived for over 4/5 of this time. 原核生物的进化史影射了地球的进化史.在地球存在的46 亿年中，原核生物在其中超过4/5的时间里与地球共存 Chen Feng,Microbiology,Shanghai Jiao Tong University
Chen Feng, Microbiology, Shanghai Jiao Tong University Preface The evolutionary history of prokaryotes mirrors the evolutionary history of Earth itself. Of the 4.6 billion years that Earth has existed, prokaryotes have thrived for over 4/5 of this time. 原核生物的进化史影射了地球的进化史.在地球存在的46 亿年中, 原核生物在其中超过4/5的时间里与地球共存
上降充通大学 Shanghai Jiao Tong University 1896 1920 1987 2006 I.EARLY EARTH,THE ORIGIN OF LIFE, AND MICROBIAL DIVERSIFICATION 宫8 早期地球，生命起源与微生物的多样化 JIAO TONG
1896 1920 1987 2006 I. EARLY EARTH, THE ORIGIN OF LIFE, AND MICROBIAL DIVERSIFICATION 早期地球，生命起源与微生物的多样化
12.1 Early Microbial Life on Earth ©Origin of Earth e Earth is about 4.6 billions years old Chen Feng,Microbiology,Shanghai Jiao Tong University
Chen Feng, Microbiology, Shanghai Jiao Tong University 12.1 Early Microbial Life on Earth Origin of Earth • Earth is about 4.6 billions years old
12.1.1 Conditions on Early Earth:hot and Anoxic Much hotter than now,Liquid water existed 3.86 billion years ago早期地球很热，而液态水在38.6乙 年前开始存在 The atmosphere of early Earth constituted a reducing environment.地球早期大气为还原性环境 H,O/Methane(CH)/Carbon dioxide (CO2)/Nitogen (N2)/Ammonia(NH3) Trace amounts of CO,H2,considerable amounts of sulfide and hydrogen cyanide (HCN) Without 02 Chen Feng,Microbiology,Shanghai Jiao Tong University
Chen Feng, Microbiology, Shanghai Jiao Tong University 12.1.1 Conditions on Early Earth: hot and Anoxic Much hotter than now, Liquid water existed 3.86 billion years ago 早期地球很热, 而液态水在38.6亿 年前开始存在. The atmosphere of early Earth constituted a reducing environment.地球早期大气为还原性环境 • H2O/ Methane (CH4 )/ Carbon dioxide (CO2 )/ Nitogen (N2 )/ Ammonia (NH3 ) • Trace amounts of CO, H2 , considerable amounts of sulfide and hydrogen cyanide (HCN) • Without O2