Results 1 to 10 of about 7,304 (176)

Syntrophic growth with direct interspecies electron transfer as the primary mechanism for energy exchange

Environmental Microbiology Reports, 2013
Summary Direct interspecies electron transfer ( DIET ) through biological electrical connections is an alternative to interspecies H 2 transfer as a mechanism for electron exchange in syntrophic cultures.
Shrestha, Pravin Malla, Rotaru, Amelia-Elena, Aklujkar, Muktak, Liu, Fanghua, Shrestha, Minita, Summers, Zarath M, Malvankar, Nikhil, Flores, Dan Carlo, Lovley, Derek R   +8 more
openaire   +4 more sources

Challenges in engineering direct interspecies electron transfer for enhanced methanogenesis

Renewable and Sustainable Energy Reviews, 2023
Interspecies electron transfer (IET) between fatty acid-oxidizing bacteria and hydrogenotrophic methanogens is key to stable and efficient methanogenesis in the anaerobic digestion (AD) process. Recently discovered direct IET (DIET) enables energetically and kinetically advantageous methanogenesis and facilitating cell-to-cell electrical connections ...
Gahyun Baek, Danbee Kim, Yunjeong Choi, Junho Cha, Changsoo Lee   +4 more
openaire   +2 more sources

Different Routes for Direct Interspecies Electron Transfer with Diverse Electron-Accepting Partners

2022
Abstract Direct interspecies electron transfer (DIET) may be most important in methanogenic environments, but studies to date that have examined the mechanisms for electron transfer from electron-donating partners have primarily focused on co-cultures in which fumarate was the terminal electron acceptor.
Dawn E. Holmes, Jinjie Zhou, Jessica A. Smith, Caiqin Wang, Xinying Liu, Derek R. Lovley   +5 more
openaire   +1 more source

Fumarate disproportionation by Geobacter sulfurreducens and its involvement in biocorrosion and interspecies electron transfer

Science of The Total Environment, 2022
The model electroactive bacterium Geobacter sulfurreducens can acquire electrons directly from solid donors including metals and other species. Reports on this physiology concluding that solid donors are the only electron sources were conducted with fumarate believed to serve exclusively as the terminal electron acceptor (TEA). Here, G.
Xiao-Chen, Shi, Pier-Luc, Tremblay, Miao, Xue, Xinyi, Song, Tian, Zhang   +4 more
openaire   +2 more sources

Hardwiring microbes via direct interspecies electron transfer: mechanisms and applications

Environmental Science: Processes & Impacts, 2016
Direct interspecies electron transfer (DIET) has important implications for the design and operation of biological treatment processes.
Qiwen, Cheng, Douglas F, Call
openaire   +2 more sources

Ethanol-type anaerobic digestion enhanced methanogenic performance by stimulating direct interspecies electron transfer and interspecies hydrogen transfer

Bioresource Technology
Ethanol pre-fermentation of food waste effectively alleviates acidification; however, its effects on interspecies electron transfer remain unknown. This study configured the feed according to COD ratios of ethanol: sodium acetate: sodium propionate: sodium butyrate of 5:2:1.5:1.5 (ethanol-type anaerobic digestion) and 0:5:2.5:2.5 (control), and ...
Shuang, Zhang, Yuanyuan, Ren, Pan, Zhao, Xiaona, Wang, Qunhui, Wang, Xiaohong, Sun   +5 more
openaire   +2 more sources

Direct Interspecies Electron Transfer Between Archaea and Bacteria

2017
Archaea and bacteria living in syntrophic consortia take advantage of the metabolic abilities of their syntrophic partners to overcome energetic barriers and break down compounds that they cannot digest by themselves. Methanogenesis and anaerobic oxidization of methane (AOM) are main processes involved in syntrophic consortia.
Cuiping Zhao, Yuchen Liu
openaire   +1 more source

Comparing the effects of magnetite-mediated direct interspecies electron transfer with biogas mixing-driven interspecies hydrogen transfer on anaerobic digestion

Chemosphere
Although the promotive effect of direct interspecies electron transfer (DIET) on methane production has been well-documented, the practical applicability of DIET in different scenarios have not yet been systematically studied. This study compared the effects of magnetite-mediated DIET with conventional biogas mixing-driven interspecies hydrogen ...
Yaoqi Hou, Qingzhen Qiu, Yongjie Liu, Wenli Huang, Xuesong Yi, Fei Yang, Zhongfang Lei, Weiwei Huang   +7 more
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[Research advances in direct interspecies electron transfer within microbes].

Ying yong sheng tai xue bao = The journal of applied ecology, 2021
Hydrogen and formic acid have been considered as the intermediate electron transporters among microbes for a long time. In recent years, however, it has been found that direct interspecies electron transfer (DIET) might be an alternative beyond hydrogen/formic acid to transfer electron among microbes.
Jian-Ying, Lan, Hai-Ming, Jiang, Xia, Li
openaire   +1 more source

Interspecies Electron Transfer in environmental and engineered syntrophic systems

2014
Syntrophic Interspecies Electron Transfer (IET) has been observed in anoxic environments and mainly requires intermediates such as hydrogen or formate as electron carriers. However direct IET (DIET) is also possible and requires that electrons are transferred via membrane-bound proteins or conductive appendages.
openaire   +3 more sources