Results 31 to 40 of about 854 (165)

Unusual Plastoquinones in Non-Phototrophic Nitrifying Bacteria. [PDF]

Environ Microbiol Rep
Chemolithoautotrophic nitrifying bacteria of the genus Nitrospira exclusively possess unusual methyl‐plastoquinones with a standard redox potential below that of canonical plastoquinone and ubiquinone, suggesting functional roles in bidirectional electron transport.
Bale NJ, Fujimura H, Pjevac P, Koenen M, Ikeda H, Itagaki S, Yamamoto Y, Palmetzhofer J, Sedlacek CJ, Palabikyan H, Sinninghe Damsté JS, Wagner M, Shiigi H, Daims H.   +13 more
europepmc   +2 more sources

Potential survival strategies of novel comammox and nitrite-oxidizing Nitrospira synthesizing osmoprotectants in a wastewater microbiome treating high-ammonia brackish landfill leachate [PDF]

Microbiome
Background In the late stages of landfill operation, leachate becomes brackish and contains high concentrations of ammonia with limited organic carbon.
Shohei Yasuda, Alejandro Palomo, Barth F. Smets, Akihiko Terada   +3 more
doaj   +2 more sources

Ammonium Removal in Aquaponics Indicates Participation of Comammox Nitrospira. [PDF]

Curr Microbiol, 2021
AbstractAquaponic systems are sustainable solutions for food production combining fish growth (aquaculture) and production of vegetables (hydroponic) in one recirculating system. In aquaponics, nitrogen-enriched wastewater from fish in the aquaculture serves as fertilizer for the plants in the hydroponics, while the nitrogen-depleted and detoxified ...
Heise J, Müller H, Probst AJ, Meckenstock RU.   +3 more
europepmc   +5 more sources

Hot spring distribution and survival mechanisms of thermophilic comammox Nitrospira. [PDF]

ISME J, 2023
Abstract The recent discovery of Nitrospira species capable of complete ammonia oxidation (comammox) in non-marine natural and engineered ecosystems under mesothermal conditions has changed our understanding of microbial nitrification.
Zhang Y, Liu T, Li MM, Hua ZS, Evans P, Qu Y, Tan S, Zheng M, Lu H, Jiao JY, Lücker S, Daims H, Li WJ, Guo J.   +13 more
europepmc   +8 more sources

Competitive and substrate limited environments drive metabolic heterogeneity for comammox Nitrospira. [PDF]

ISME Commun, 2023
Abstract Nitrospira has been revealed as a high versatile genus. Although previously considered only responsible for the conversion of nitrite to nitrate, now we know that Nitrospira can perform complete ammonia oxidation to nitrate too (comammox).
Martinez-Rabert E, Smith CJ, Sloan WT, Gonzalez-Cabaleiro R.   +3 more
europepmc   +3 more sources

Transcriptional activity of ammonia oxidisers in response to soil temperature, moisture and nitrogen amendment [PDF]

Frontiers in Microbiology
The contrasting response of AOA, AOB, and comammox Nitrospira amoA transcript abundance to temperature, moisture, and nitrogen was investigated using soil microcosms.
Chris Chisholm, Hong Di, Keith Cameron, Andriy Podolyan, Jupei Shen, Limei Zhang, Kosala Sirisena, Xueying Che   +7 more
doaj   +2 more sources

Comammox Nitrospira clade B contributes to nitrification in soil

Soil Biology and Biochemistry, 2019
Abstract Comammox, one nitrifying microorganism carries out the complete oxidation of ammonia to nitrate, have been recently discovered, and are found in a wide range of environments, including soil. However, conditions under which they actually contribute to nitrification in soil have not yet been demonstrated.
Wang, Zhihui, Cao, Yanqiang, Zhu-Barker, Xia, Nicol, Graeme W., Wright, Alan, Jia, Zhongjun, Jiang, Xianjun   +6 more
openaire   +4 more sources

Functional redundancy and niche complementarity maintain nitrification stability in rapid sand filters [PDF]

Frontiers in Microbiology
Nitrification in drinking water biofilters is mediated by a complex guild of ammonia oxidizers, yet the mechanisms facilitating the coexistence of these functionally redundant nitrifier guild members are not well understood.
Alejandro Palomo, Alejandro Palomo, Alejandro Palomo, S. Jane Fowler, S. Jane Fowler, Ibrahim M. Nemer, Borja Valverde-Pérez, Yan Zheng, Yan Zheng, Yunjie Ma, Yunjie Ma, Barth F. Smets, Barth F. Smets   +12 more
doaj   +2 more sources

Comparative enrichment of complete ammonium oxidation bacteria in floccular sludge reactors: Sequencing batch reactor vs. continuous stirred tank reactor [PDF]

Water Research X
This study attempted to compare the enrichment of complete ammonium oxidation (comammox) bacteria, which are affiliated with Nitrospira and not able to generate nitrous oxide (N2O, a potent greenhouse gas) through biological pathways, in two commonly ...
Ying Zhu, Jiaying Hou, Fangang Meng, Meiying Xu, Limin Lin, Linyan Yang, Xueming Chen   +6 more
doaj   +2 more sources

Monitoring complete ammonia oxidizers bacteria: relevant players for nitrogen removal from wastewater [PDF]

AMB Express
COMAMMOX (Complete Ammonia Oxidizers) bacteria seem to play an important role in nitrification, being able to directly transform ammonia into nitrates. Due to the relevance of this process in WWTPs, different approaches were used in this work to monitor ...
Javier Duque, Leire Besga-Oyanarte, Miguel De Celis, Susana Serrano, José Luis Alonso, Antonio Santos, Lucía Arregui   +6 more
doaj   +2 more sources