介绍产电微生物胞外电子传递(extracellular electron transfer,EET)研究的背景和意义,概述细胞色素c、菌毛蛋白、电子介体等多种分子在EET过程中的作用,综述近年来利用网络方法和组学方法研究产电微生物EET过程的相关工作。从蛋白网络...介绍产电微生物胞外电子传递(extracellular electron transfer,EET)研究的背景和意义,概述细胞色素c、菌毛蛋白、电子介体等多种分子在EET过程中的作用,综述近年来利用网络方法和组学方法研究产电微生物EET过程的相关工作。从蛋白网络、调控网络与整合网络等方面总结网络分析方法在关键电子传递分子识别、电子传递模块挖掘、电子传递途径推断等方面的应用;从基因组、转录组、蛋白组、多组学与宏组学等方面总结使用组学方法识别电子传递基因及其功能分析方面的研究;介绍整合生物网络与组学数据在产电微生物EET过程生物分子协调利用、关键基因与基因簇识别等方面的研究。探讨当前存在的问题,展望未来整合多种生物网络和组学数据开展产电微生物EET研究的方向。展开更多
Pyrite framboids were found in the Permian-Triassic boundary at Meishan Section,while their sulfur isotopes were determined.The majority of framboids is less than 5μm in diameter,with some large-sized framboids.Also,...Pyrite framboids were found in the Permian-Triassic boundary at Meishan Section,while their sulfur isotopes were determined.The majority of framboids is less than 5μm in diameter,with some large-sized framboids.Also,euhedral gypsums were observed in the boundary clay.The authors suppose that most of the pyrite framboids formed just below the redox boundary and stopped growing after entering the lower water column.The result indicates that it was probably lower dysoxia condition in the temporal ocean.Moreover,the authors also presume that some pyrite was oxidated to sulfates accompanying the fluctuation of redox condition,which would probably be the origin of the negative sulfur isotopes of gypsum and CAS reported before.In addition,sulfur isotope of framboidal pyrite suggests that sulfur is originated from bacterial sulfate reduction in anoxic condition.Therefore, this study confirms that the ocean was widely anoxic during the Permian-Triassic transitional period. However,the redox condition in temporal ocean was probably not stable,with short-term fluctuations.展开更多
文摘介绍产电微生物胞外电子传递(extracellular electron transfer,EET)研究的背景和意义,概述细胞色素c、菌毛蛋白、电子介体等多种分子在EET过程中的作用,综述近年来利用网络方法和组学方法研究产电微生物EET过程的相关工作。从蛋白网络、调控网络与整合网络等方面总结网络分析方法在关键电子传递分子识别、电子传递模块挖掘、电子传递途径推断等方面的应用;从基因组、转录组、蛋白组、多组学与宏组学等方面总结使用组学方法识别电子传递基因及其功能分析方面的研究;介绍整合生物网络与组学数据在产电微生物EET过程生物分子协调利用、关键基因与基因簇识别等方面的研究。探讨当前存在的问题,展望未来整合多种生物网络和组学数据开展产电微生物EET研究的方向。
基金supported by China Scholarship Council,National Natural Science Foundation of China(No40572020)Doctoral Program of Higher Education(No20040290005)
文摘Pyrite framboids were found in the Permian-Triassic boundary at Meishan Section,while their sulfur isotopes were determined.The majority of framboids is less than 5μm in diameter,with some large-sized framboids.Also,euhedral gypsums were observed in the boundary clay.The authors suppose that most of the pyrite framboids formed just below the redox boundary and stopped growing after entering the lower water column.The result indicates that it was probably lower dysoxia condition in the temporal ocean.Moreover,the authors also presume that some pyrite was oxidated to sulfates accompanying the fluctuation of redox condition,which would probably be the origin of the negative sulfur isotopes of gypsum and CAS reported before.In addition,sulfur isotope of framboidal pyrite suggests that sulfur is originated from bacterial sulfate reduction in anoxic condition.Therefore, this study confirms that the ocean was widely anoxic during the Permian-Triassic transitional period. However,the redox condition in temporal ocean was probably not stable,with short-term fluctuations.
