Article
Multidisciplinary Sciences
Sina Schorn, Soeren Ahmerkamp, Emma Bullock, Miriam Weber, Christian Lott, Manuel Liebeke, Gaute Lavik, Marcel M. M. Kuypers, Jon S. Graf, Jana Milucka
Summary: Marine coastlines colonized by seagrasses are a significant net source of methane emissions, primarily driven by methylated compounds produced by the plants. Methane production continues even after the plants die off, likely due to the presence of methylated compounds in detached plant leaves and rhizomes. The study also identified gene sequences associated with key methane-producing enzymes in the seagrass sediments, suggesting their involvement in methane metabolism.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2022)
Review
Microbiology
James G. Volmer, Harley McRae, Mark Morrison
Summary: Methanogenic archaea are diverse microorganisms that play an important role in global carbon cycling by producing methane. Recent studies have found a high prevalence of methanogens in the host-associated microbiome of various animal species. There is increasing evidence to suggest that methanogens may have significant implications for human health and disease.
FRONTIERS IN MICROBIOLOGY
(2023)
Article
Engineering, Environmental
Panagiotis Tsapekos, Merlin Alvarado-Morales, Irini Angelidaki
Summary: Competition between homoacetogenic bacteria and methanogenic archaea for H2 in biological biogas upgrading process reduces methane production capacities. This study investigated the effect of different feeding regimes on the competition and found that adapted inoculum can produce high methane yield without acetate accumulation, while non-adapted inoculum resulted in acetate accumulation. Thermodynamic analysis showed that hydrogenotrophic methanogenesis has lower permissive H2 partial pressures compared to homoacetogenesis. A kinetic model was developed to study the influence of variables on different pathways and the model efficiently describes the dynamics of compounds involved.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
Article
Multidisciplinary Sciences
Tomohiro Watanabe, Olivia Pfeil-Gardiner, Joerg Kahnt, Juergen Koch, Seigo Shima, Bonnie J. Murphy
Summary: The study reports enzymological and structural characteristics of the CO2 reduction reaction in the methanogenic pathway, revealing the mechanism of the complex using formate and F-420 electron reduction form. Conformational changes in HdrA mediate electron bifurcation, while FmdF directly transfers electrons to the CO2 reduction site, confirming the ubiquity of this complex.
Review
Microbiology
Katie E. Shalvarjian, Dipti D. Nayak
Summary: Methanogenesis is a significant metabolic process carried out by methanogens in the Archaea domain. Although genes involved in methanogenic metabolism have been identified and characterized, the regulation of methane production in response to various signals remains less understood.
CURRENT OPINION IN MICROBIOLOGY
(2021)
Article
Microbiology
Guillaume Borrel, Khaled Fadhlaoui, Wajdi Ben Hania, Nadia Gaci, Gerard Pehau-Arnaudet, Prem Prashant Chaudhary, Pascal Vandekerckove, Nathalie Ballet, Monique Alric, Paul William O'Toole, Marie-Laure Fardeau, Bernard Ollivier, Jean-Francois Brugere
Summary: The methanogenic strain Mx-05(T), isolated from human fecal microbiome, belongs to the order Methanomassiliicoccales. It can reduce methanol, monomethylamine, dimethylamine, and trimethylamine into methane using H-2 as an electron donor. The strain requires specific medium factors and can grow within certain temperature, pH, and NaCl concentration ranges.
Article
Multidisciplinary Sciences
Kershanthen Thevasundaram, Joseph J. Gallagher, Freeman Cherng, Michelle C. Y. Chang
Summary: The conversion of CO2 to value-added products allows capture and recycling of greenhouse gas emissions. Methanogenic archaea offer a potential route for non-photosynthetic CO2 fixation and microbial fermentation to synthesize chemicals. By engineering Methanococcus maripaludis, an autotrophic microbial species, the production of value-added chemicals from CO2 can be optimized.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2022)
Article
Environmental Sciences
Mingwei Cai, Xiuran Yin, Xiaoyu Tang, Cuijing Zhang, Qingfei Zheng, Meng Li
Summary: The study investigated methanogens in vegetated coastal ecosystems and found that mangroves have more diverse methane-producing archaea compared to saltmarshes and seagrasses, where methylotrophic methanogenesis is predominant. The research identified 13 groups of methanogenic archaea being transcribed in VCEs, with Methanosarcinales being the most predominant. This suggests potential distinct methane production contributions in different VCEs to global warming.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Environmental Sciences
Celine Lavergne, Polette Aguilar-Munoz, Natalia Calle, Frederic Thalasso, Maria Soledad Astorga-Espana, Armando Sepulveda-Jauregui, Karla Martinez-Cruz, Laure Gandois, Andres Mansilla, Rolando Chamy, Maialen Barret, Lea Cabrol
Summary: Freshwater ecosystems play a significant role in methane emissions and this study investigated the effects of temperature on microbial community structure and methane production pathways in sub-Antarctic lake sediments. The research found that temperature had a significant impact on methane production rates, particularly when methanogenic precursors such as acetate and H-2/CO2 were introduced.
ENVIRONMENT INTERNATIONAL
(2021)
Article
Microbiology
Om Prakash, Jeremy A. Dodsworth, Xiuzhu Dong, James G. Ferry, Stephane L'Haridon, Hiroyuki Imachi, Yoichi Kamagata, Sung-Keun Rhee, Isita Sagar, Viktoria Shcherbakova, Dirk Wagner, William B. Whitman
Summary: Methanogenic archaea are diverse prokaryotes capable of producing methane as their main product. With advancements in technology, taxonomy criteria for these archaea need to be revised. The previously recommended minimum standards for phenotypic characterization of pure cultures are mostly maintained. Obtaining whole genome sequences for type strains and comparing them with close relatives using genomic indices is now mandatory. Additionally, culture purity is not essential and alternative methods like single-cell or metagenomics can be used for taxonomic description.
INTERNATIONAL JOURNAL OF SYSTEMATIC AND EVOLUTIONARY MICROBIOLOGY
(2023)
Article
Environmental Sciences
Yaling Gou, Yun Song, Sucai Yang, Yan Yang, Yanan Cheng, Jiabin Li, Tengfei Zhang, Yanjun Cheng, Hongqi Wang
Summary: This study investigated the effectiveness and efficiency of NaHCO3 as an electron acceptor for the degradation of polycyclic aromatic hydrocarbons (PAHs) by bacteria and archaea in highly contaminated soil. The results showed that CO2 addition promoted PAH degradation and increased soil bacterial abundances with incubation time.
ENVIRONMENTAL POLLUTION
(2022)
Article
Environmental Sciences
Debin Wu, Yuan Zhao, Lei Cheng, Zhuo Zhou, Qiusheng Wu, Qian Wang, Quan Yuan
Summary: This study found that sediment organic carbon content is positively correlated with methane production rates in cascade hydropower reservoirs, but not significantly correlated with total CO2 production rates. The anaerobic decomposition rates of sediments do not significantly increase along with the increase of SOC content.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Environmental Sciences
Sevcan Aydin, Kubra Can, Mahmut Caliskan, Jose L. Balcazar
Summary: This study explored the effect of a bacteriophage cocktail, pyophage, on the treatment of wastewater containing antibiotics in an anaerobic membrane bioreactor. The results showed that pyophage improved COD removal efficiency, delayed membrane fouling, and promoted biogas production through alterations to the microbial community structure and composition.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Review
Microbiology
Kailin Gao, Yahai Lu
Summary: Methanogens have been shown to be capable of extracellular electron transfers for growth and metabolism. They can directly capture electrons from other microbes and perform electromethanogenesis under limited conditions involving electron-transfer mediators.
FRONTIERS IN MICROBIOLOGY
(2021)
Article
Geochemistry & Geophysics
J. Alonso-Henar, E. Rodriguez-Escudero, P. Herrero-Barbero, M. Tsige, J. J. Martinez-Diaz
Summary: The fault rock architecture of the Alhama de Murcia Fault (AMF) in SE Spain differs significantly from classical models, showing larger symmetry and heterogeneity within the shear zone, ranging from a stable fault core to intensely deformed damage zone, recording multiple seismic events.
Article
Microbiology
Sheng-Chung Chen, Mei-Fei Chen, Mei-Chin Lai, Chieh-Yin Weng, Sue-Yao Wu, Saulwood Lin, Tsanyao F. Yang, Po-Chun Chen
INTERNATIONAL JOURNAL OF SYSTEMATIC AND EVOLUTIONARY MICROBIOLOGY
(2015)
Article
Microbiology
Chieh-Yin Weng, Sheng-Chung Chen, Mei-Chin Lai, Sue-Yao Wu, Saulwood Lin, Tsanyao F. Yang, Po-Chun Chen
INTERNATIONAL JOURNAL OF SYSTEMATIC AND EVOLUTIONARY MICROBIOLOGY
(2015)
Article
Immunology
Wen-Tsung Lee, Mei-Chin Lai
JOURNAL OF MICROBIOLOGY IMMUNOLOGY AND INFECTION
(2015)
Article
Multidisciplinary Sciences
Chao-Jen Shih, Sheng-Chung Chen, Chieh-Yin Weng, Mei-Chin Lai, Yu-Liang Yang
SCIENTIFIC REPORTS
(2015)
Article
Multidisciplinary Sciences
Sheng-Chia Chen, Chi-Hung Huang, Shu-Jung Lai, Jai-Shin Liu, Pin-Kuei Fu, Shih-Ting Tseng, Chia Shin Yang, Mei-Chin Lai, Tzu-Ping Ko, Yeh Chen
SCIENTIFIC REPORTS
(2015)
Article
Multidisciplinary Sciences
Shu-Jung Lai, Yu-Chen Deng, Mei-Chin Lai
Article
Multidisciplinary Sciences
Wan-Ling Wu, Shu-Jung Lai, Jhih-Tian Yang, Jeffy Chern, Suh-Yuen Liang, Chi-Chi Chou, Chih-Horng Kuo, Mei-Chin Lai, Shih-Hsiung Wu
SCIENTIFIC REPORTS
(2016)
Article
Multidisciplinary Sciences
Yi-Ru Lee, Te-Sheng Lin, Shu-Jung Lai, Mu-Sen Liu, Mei-Chin Lai, Nei-Li Chan
SCIENTIFIC REPORTS
(2016)
Article
Microbiology
Jiun-Yan Ding, Sheng-Chung Chen, Mei-Chin Lai, Tsai-Ling Liao
INTERNATIONAL JOURNAL OF SYSTEMATIC AND EVOLUTIONARY MICROBIOLOGY
(2017)
Article
Multidisciplinary Sciences
Huei-Mien Ke, Anuphap Prachumwat, Chun-Ping Yu, Yi-Ting Yang, Sutitcha Promsri, Kuan-Fu Liu, Chu-Fang Lo, Mei-Yeh Jade Lu, Mei-Chin Lai, Isheng J. Tsai, Wen-Hsiung Li
SCIENTIFIC REPORTS
(2017)
Article
Microbiology
Sheng-Chung Chen, Hsing-Hua Huang, Mei-Chin Lai, Chieh-Yin Weng, Hsiu-Hui Chiu, Sen-Lin Tang, Denis Yu Rogozin, Andrey G. Degermendzhy
INTERNATIONAL JOURNAL OF SYSTEMATIC AND EVOLUTIONARY MICROBIOLOGY
(2018)
Article
Immunology
Chuan-Chuan Hung, Mei-Chin Lai
JOURNAL OF MICROBIOLOGY IMMUNOLOGY AND INFECTION
(2013)
Article
Biochemistry & Molecular Biology
Shu-Jung Lai, Mei-Chin Lai, Ren-Jye Lee, Yu-Hsuan Chen, Hungchen Emilie Yen
PLANT MOLECULAR BIOLOGY
(2014)
Article
Microbiology
Shu-Jung Lai, I-Fan Tu, Wan-Ling Wu, Jhih-Tian Yang, Louis Y. P. Luk, Mei-Chin Lai, Yu-Hsuan Tsai, Shih-Hsiung Wu
Article
Microbiology
Sheng-Chung Chen, Mei-Fei Chen, Chieh-Yin Weng, Mei-Chin Lai, Sue-Yao Wu
GENOME ANNOUNCEMENTS
(2016)