Results 41 to 50 of about 264,167 (309)

Microbial pathways for nitrogen loss in an upland soil [PDF]

Environmental Microbiology, 2018
Summary The distribution and importance of anaerobic ammonium oxidation (anammox) and nitrite‐dependent anaerobic methane oxidation (n‐damo) have been identified in aquatic ecosystems; their role in agricultural upland soils however has not yet been well investigated.
Guibing Zhu, Shanyun Wang, Yixiao Li, Linjie Zhuang, Siyan Zhao, Cheng Wang, Marcel M. M. Kuypers, Mike S. M. Jetten, Yongguan Zhu   +8 more
openaire   +4 more sources

Electrotrophic microbial communities driving cathodic bioelectrochemical nitrogen and carbon fixation [PDF]

, 2021
The electrostimulation of complex microbial communities for biomass production represents a challenging opportunity with several industrial applications in terms of organic carbon storage and soil fertility improvement.
Zecchin Sarah, Bombelli Paolo, Zanetti Rocco, Cavalca Lucia, Schievano Andrea   +4 more
core  

Structural insights into an engineered feruloyl esterase with improved MHET degrading properties

FEBS Letters, EarlyView.
A feruloyl esterase was engineered to mimic key features of MHETase, enhancing the degradation of PET oligomers. Structural and computational analysis reveal how a point mutation stabilizes the active site and reshapes the binding cleft, expading substrate scope.
Panagiota Karampa, Konstantinos Makryniotis, Theofani‐Iosifina Sousani, Evangelos Topakas, Vangelis Daskalakis, Maria Dimarogona   +5 more
wiley   +1 more source

C2α‐carbanion‐protonating glutamate discloses tradeoffs between substrate accommodation and reaction rate in actinobacterial 2‐hydroxyacyl‐CoA lyase

FEBS Open Bio, EarlyView.
Enzymes of the 2‐hydroxyacyl‐CoA lyase group catalyze the condensation of formyl‐CoA with aldehydes or ketones. Thus, by structural adaptation of active sites, practically any pharmaceutically and industrially important 2‐hydroxyacid could be biotechnologically synthesized. Combining crystal structure analysis, active site mutations and kinetic assays,
Michael Zahn, Barbara Seroka, Ryszard Lazny, Zenon Lotowski, Thore Rohwerder   +4 more
wiley   +1 more source

Evolutionarily divergent DUF4465 domains have a common vitamin B12‐binding function

FEBS Open Bio, EarlyView.
We show that DUF4465 family proteins, widespread across bacteria from gut microbiomes, hydrothermal vents, and soil, share a common vitamin B12‐binding function. These augmented β‐jellyroll proteins bind vitamin B12 via extended loops. Our findings establish sequence‐diverse DUF4465 proteins as a widespread class of B12‐binding proteins, highlighting ...
Charlea Clarke, Michal Banasik, Rokas Juodeikis, Martin J. Warren, Richard W. Pickersgill   +4 more
wiley   +1 more source

Zein‐Based Adhesives: Sustainable Extraction and Application in Bioadhesive Technologies

Advanced Engineering Materials, EarlyView.
Zein is extracted from corn gluten meal using a simple and scalable process with high yield (~90%). The resulting protein is applied in bioadhesives modified with Ca2+ and Fe3+ ions, exhibiting substrate‐dependent adhesion. The findings demonstrate competitive bonding performance and highlight the role of ionic interactions in tuning adhesion ...
Paula Bertolino Sanvezzo, Daniela Winsley Valereto Friozi, Vinícius de Oliveira, Marcia Cristina Branciforti   +3 more
wiley   +1 more source

Nitrogen cycling and microbial cooperation in the terrestrial subsurface

The ISME Journal, 2022
Abstract The nitrogen cycle plays a major role in aquatic nitrogen transformations, including in the terrestrial subsurface. However, the variety of transformations remains understudied. To determine how nitrogen cycling microorganisms respond to different aquifer chemistries, we sampled groundwater with varying nutrient and oxygen ...
Olivia E Mosley, Emilie Gios, Murray Close, Louise Weaver, Chris Daughney, Kim M Handley   +5 more
openaire   +2 more sources

Incorporation of Selenium into Sol–Gel‐Derived Bioactive Glass: Influence on Glass Structure, Bioactivity, and its Selective Cytotoxicity

Advanced Engineering Materials, EarlyView.
Selenium was incorporated into a sol–gel‐derived bioactive glass to enable sustained therapeutic ion release. The selenium‐containing glass preserved bioactivity while selectively inducing cytotoxicity in osteosarcoma cells and maintaining osteoblastic viability.
Breno Rocha Barrioni, Thalita Marcolan Valverde, Talita Martins, Guilherme Mattos Jardim Costa, Alfredo Miranda de Goes, Marcello Rosa Dumont, Eduardo Henrique Martins Nunes, Marivalda de Magalhães Pereira   +7 more
wiley   +1 more source

Composting swine carcasses with nitrogen transformation microbial strains: Succession of microbial community and nitrogen functional genes

Science of The Total Environment, 2019
In this study, nitrogen transformation strains, including three ammonium transformation strains, one nitrite strain and one nitrogen fixer, were inoculated at different swine carcass composting stages to regulate the nitrogen transformation and control the nitrogen loss. The final total nitrogen content was significantly increased (p 
Xu-Chen Yang, Zhen-Zhen Han, Xin-Yi Ruan, Jin Chai, Si-Wen Jiang, Rong Zheng   +5 more
openaire   +2 more sources

Repression of potential nitrification activities by matgrass sward species

, 2010
Soil nitrification is a key process in regulating the relative availability of the various inorganic N forms to plants. In the current study, we investigated the effect of different plant species on numbers of ammoniaoxidizing microbial cells by ...
Aline J. Paalman, Smits, N.A.C., Bobbink, R., Nina Antonia Cornelia Smits, Hefting, M M., Hendrikus J. Laanbroek, Mariet M. Hefting, Hefting, M.M., Roland Bobbink, Paalman, A.J., Laanbroek, H.J.   +10 more
core   +1 more source