Geomicrobial functional groups: A window on the interaction between life and environments

Xie, Shucheng; Yang, Huan; Luo, Genming; Huang, Xianyu; Liu, Deng; Wang, Yongbiao; Gong, Yiming; Xu, Ran

doi:10.1007/s11434-011-4860-x

Cited by 11 publications

(8 citation statements)

References 210 publications

(263 reference statements)

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“…Due to the redox activity of iron, it becomes a major player in the biogeochemical cycle. Fe 2+ produced by organic matter reduction can supply microbial life activities in a reducing environment [2,5].…”

Section: The Utilization Of Fe 2+ In Methanogans and Srbmentioning

confidence: 99%

“…Microorganisms represented by bacteria are the most widely distributed life forms on Earth, and various types of inorganic minerals are the basis of the inorganic world. Microorganisms and minerals are closely involved on multiple levels: microbial formation of minerals, microbial dissolution of minerals, and redox between microorganisms and minerals with polyvalent metallic elements [1][2][3]. Among these interactions, redox is considered the key pathway influencing elemental geochemical cycles on the Earth's surface [2,4,5].…”

Section: Introductionmentioning

confidence: 99%

“…Microorganisms and minerals are closely involved on multiple levels: microbial formation of minerals, microbial dissolution of minerals, and redox between microorganisms and minerals with polyvalent metallic elements [1][2][3]. Among these interactions, redox is considered the key pathway influencing elemental geochemical cycles on the Earth's surface [2,4,5]. On the one hand, chemoautotroph microbes obtain electron energy though the oxidation of reduced minerals, such as sulfide minerals and divalent iron minerals.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Can Primary Ferroan Dolomite and Ankerite Be Precipitated? Its Implications for Formation of Submarine Methane-Derived Authigenic Carbonate (MDAC) Chimney

You

et al. 2019

Minerals

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Microbes can mediate the precipitation of primary dolomite under surface conditions. Meanwhile, primary dolomite mediated by microbes often contains more Fe2+ than standard dolomite in modern microbial culture experiments. Ferroan dolomite and ankerite have been regarded as secondary products. This paper reviews the process and possible mechanisms of microbial mediated precipitation of primary ferroan dolomite and/or ankerite. In the microbial geochemical Fe cycle, many dissimilatory iron-reducing bacteria (DIRB), sulfate-reducing bacteria (SRB), and methanogens can reduce Fe3+ to Fe2+, while SRB and methanogens can also promote the precipitation of primary dolomite. There are an oxygen respiration zone (ORZ), an iron reduction zone (IRZ), a sulfate reduction zone (SRZ), and a methanogenesis zone (MZ) from top to bottom in the muddy sediment diagenesis zone. DIRB in IRZ provide the lower section with Fe2+, which composes many enzymes and proteins to participate in metabolic processes of SRB and methanogens. Lastly, heterogeneous nucleation of ferroan dolomite on extracellular polymeric substances (EPS) and cell surfaces is mediated by SRB and methanogens. Exploring the origin of microbial ferroan dolomite may help to solve the “dolomite problem”.

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Section: The Utilization Of Fe 2+ In Methanogans and Srbmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Can Primary Ferroan Dolomite and Ankerite Be Precipitated? Its Implications for Formation of Submarine Methane-Derived Authigenic Carbonate (MDAC) Chimney

You

et al. 2019

Minerals

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“…More intriguingly, even where laboratory cultured representatives are available, caution is required in to infer the characteristics of the lab culture to the physiology or geochemical roles of the microbes in nature. Even closely related microbial species or even the same species (as basically classified by 16S rRNA gene identities of more than 97%) may have significant different physiologies and/or metabolic characteristics, it would be more crucial to understand or define the "Geomicrobial Functional Groups" in the environments [89]. Novel experimental approaches using in situ experiments such as FLOCS like systems describe above, and enrichment experiment using stable isotope labeled elements would be powerful to directly link the microbial identity with its physiology and metabolic functioning.…”

Section: Future and Challenges Of Deep Biosphere Investigationmentioning

confidence: 99%

Discovering the roles of subsurface microorganisms: Progress and future of deep biosphere investigation

Wang

Orcutt

et al. 2012

Chin. Sci. Bull.

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The discovery of the marine "deep biosphere"-microorganisms living deep below the seafloor-is one of the most significant and exciting discoveries since the ocean drilling program began more than 40 years ago. Study of the deep biosphere has become a research frontier and a hot spot both for geological and biological sciences. Here, we introduce the history of the discovery of the deep biosphere, and then we describe the types of environments for life below the seafloor, the energy sources for the living creatures, the diversity of organisms within the deep biosphere, and the new tools and technologies used in this research field. We will highlight several recently completed Integrated Ocean Drilling Program Expeditions, which targeted the subseafloor deep biosphere within the crust and sediments. Finally, future research directions and challenges of deep biosphere investigation towards uncovering the roles of subsurface microorganisms will be briefly addressed.

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“…These microbes include bacteria, archaea and eukaryotes (Burton and Lappin-Scott 2005;Ehrlich and Newman 2009). The microbes with the greatest diversity and abundance may play an important part in understanding the relationship between organisms and environments, such as: (1) methanogens, methaneoxidizing bacteria and archaea, which are related to carbon cycle; (2) sulfur-reducing bacteria and archaea, which are related to sulfur metabolism; (3) anoxygenic phototrophic bacteria and nitrate-reducing bacteria, which are related to iron oxidation; and (4) dissimilatory iron-reducing bacteria, which are related to iron reduction (Gong et al 2007(Gong et al , 2008Xie et al 2012).…”

Section: Introductionmentioning

confidence: 99%

Types and microbial genesis of carbonate microbodies in Zoophycos from the Pennsylvanian to Cisuralian Taiyuan Formation in North China

et al. 2018

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Many kinds of ichnofossil Zoophycos occur commonly in the carbonate rocks of Pennsylvanian to Cisuralian Taiyuan Formation in North China. In this study, carbonate microbodies types were identified in four differently-colored fillings of Zoophycos using scanning electron microscopy (SEM) and energy dispersive spectroscopy (EDS). Based on the morphologic characteristics, these carbonate microbodies can be divided into three groups, i.e., spheroids, framboids and rhabditiforms. According to the structural features of surface and individual or aggregate morphologies, the three groups can be further subdivided into thirteen types: (1) smooth spheroids; (2) spheroids with tiny thorns; (3) spheroids with a finely granulated surface; (4) spheroids with a flocculent surface; (5) spheroids with a vermiform surface; (6) framboid monomers; (7) framboid colonies; (8) linear smooth rhabditiform bodies; (9) smooth rhabditiform bodies with expanding ends; (10) biserial rhabditiform bodies; (11) spiral rhabditiform bodies; (12) thorny rhabditiform bodies; and (13) branched rhabditiform bodies. This paper not only describes the morphology, composition and occurrence of the various carbonate microbodies, but also discusses their possible microbial genesis, as follows: (1) carbonate spherical microbodies most likely were generated after globular bacterial cells had been fully displaced by minerals; (2) framboid monomers and colonies corresponding to the morphology of biogenic strawberry (or raspberry) pyrite, with their appearance and internal structure possibly inheriting the morphology of microbial cells, were indirectly generated by some microenvironmental changes due to microbial activity; (3) the morphological features, size, occurrences and preservation of filamentous and rhabditiform microbodies indicate that they may be biogenic structures, and possibly mineralized microbial fossils; and (4) some kind of symbiotic relationship exists between microbial action and the Zoophycos trace-makers. Besides, the differently-colored fillings of Zoophycos are most likely closely related to differences in the composition of microbial taxa, which in turn reflect different microenvironmental conditions.

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Geomicrobial functional groups: A window on the interaction between life and environments

Cited by 11 publications

References 210 publications

Can Primary Ferroan Dolomite and Ankerite Be Precipitated? Its Implications for Formation of Submarine Methane-Derived Authigenic Carbonate (MDAC) Chimney

Can Primary Ferroan Dolomite and Ankerite Be Precipitated? Its Implications for Formation of Submarine Methane-Derived Authigenic Carbonate (MDAC) Chimney

Discovering the roles of subsurface microorganisms: Progress and future of deep biosphere investigation

Types and microbial genesis of carbonate microbodies in Zoophycos from the Pennsylvanian to Cisuralian Taiyuan Formation in North China

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