Results 91 to 100 of about 6,046 (231)

Nitrogen Starvation Acclimation in Synechococcus elongatus: Redox-Control and the Role of Nitrate Reduction as an Electron Sink

Life, 2015
Nitrogen starvation acclimation in non-diazotrophic cyanobacteria is characterized by a process termed chlorosis, where the light harvesting pigments are degraded and the cells gradually tune down photosynthetic and metabolic activities.
Alexander Klotz, Edgar Reinhold, Sofía Doello, Karl Forchhammer   +3 more
doaj   +1 more source

Preclinical Evaluation of Berry Extracts as a Nutritional Intervention to Alleviate Myocardial Ischemia–Reperfusion Injury and Atherosclerosis Development

Phytotherapy Research, EarlyView.
Schematic representation of the experimental design and the proposed mechanisms underlying the cardioprotective and anti‐atherosclerotic effects of Greek‐derived berry extracts. C57BL/6 mice with WD–induced MS and ApoE−/− mice with atherosclerosis received chronic supplementation with WMex or BBex.
Lydia Symeonidi, Panagiota‐Efstathia Nikolaou, Panagiotis Stathopoulos, Andriana Christodoulou, Alexandra Svouraki, Panagiotis Efentakis, Christina Chania, Angeliki Choustoulaki, Maria Xenaki, Anna Agapaki, Maria Tsoumani, Nikolaos Kostomitsopoulos, Ioulia Tseti, Gemma Vilahur, Alexios‐Leandros Skaltsounis, Ioanna Andreadou   +15 more
wiley   +1 more source

Characterization of the periplasmic redox network that sustains the versatile anaerobic metabolism of Shewanella oneidensis MR-1

Frontiers in Microbiology, 2015
The versatile anaerobic metabolism of the Gram-negative bacterium Shewanella oneidensis MR-1 (SOMR-1) relies on a multitude of redox proteins found in its periplasm.
Mónica N. Alves, Sónia E. Neto, Alexandra S. Alves, Afonso eCarrêlo, Isabel ePacheco, Bruno M. Fonseca, Catarina M. Paquete, Cláudio M. Soares, Ricardo O Louro   +8 more
doaj   +1 more source

Responsive nitric oxide‐releasing antibacterial materials for biofilm‐associated infections: Mechanisms, design strategies, and applications

Responsive Materials, EarlyView.
This review summarizes the recent progress in responsive NO‐releasing materials and their applications in biofilm‐associated infectious diseases. The design principles and response mechanisms are given to provide inspiration toward the future development of multi‐responsive NO‐releasing materials.
Wenyue Sun, Meiqi Li, Di Nan, Jiaqi Zhao, Yu Chen, Yao Gao, Shichen Zhang, Kirsten L. Van Landuyt, Manlin Qi   +8 more
wiley   +1 more source

Siroheme Is Essential for Assimilation of Nitrate and Sulfate as Well as Detoxification of Nitric Oxide but Dispensable for Murine Virulence of Aspergillus fumigatus

Frontiers in Microbiology, 2018
The saprophytic mold Aspergillus fumigatus is the most common airborne fungal pathogen causing severe invasive fungal infections in immunocompromised patients.
Anna-Maria Dietl, Ulrike Binder, Yana Shadkchan, Nir Osherov, Hubertus Haas   +4 more
doaj   +1 more source

Structure and functional genes associated with carbon, nitrogen, phosphorus, and sulfur cycling processes in periphyton: A comparison between natural and artificial rivers

River, EarlyView.
Network analysis of functional genes among prokaryotes, and eukaryotes in natural and artificial rivers. Abstract Periphyton in aquatic ecosystems plays vital roles in the elemental cycle process and is vulnerable to anthropogenic interference. However, few studies have explored the elemental cycles of carbon (C), nitrogen (N), phosphorus (P), and ...
Yulu Tian, Jiezhang Mo, Jiaxin Liu, Chenghao Li, Jiahua Guo   +4 more
wiley   +1 more source

Bidirectional catalysis by copper-containing nitrite reductase

, 2004
The copper-containing nitrite reductase from Alcaligenes faecalis S-6 was found to catalyze the oxidation of nitric oxide to nitrite, the reverse of its physiological reaction.
Canters, GW, Canters, G.W., Vries, S. de, de Vries, S, Verbeet, MP, Verbeet, M.P., Wijma, H.J., Wijma, HJ   +7 more
core   +1 more source

Degradable versus inert microplastics: Effects on soil organic carbon persistence via microbial drivers in an agroecosystem

Functional Ecology, EarlyView.
Read the free Plain Language Summary for this article on the Journal blog. Abstract Microplastics (MPs) are widespread in terrestrial ecosystems, raising global concerns that they may disrupt soil organic carbon (SOC) cycling and undermine agroecosystem contributions to climate mitigation.
Meng‐Ying Li, Wei Wang, Yue Ma, Jia‐Yao Yang, Shu‐Tong Liu, Xiao‐Bin Xiong, Tingting Zhao, Yuanze Sun, Saddam Saqib, Muhammd Ashraf, Matthias C. Rillig, You‐Cai Xiong   +11 more
wiley   +1 more source

Sensing Nitrite through a Pseudoazurin–Nitrite Reductase Electron Transfer Relay

ChemPhysChem, 2005
AbstractNitrite is converted to nitric oxide by haem or copper‐containing enzymes in denitrifying bacteria during the process of denitrification. In designing an efficient biosensor, this enzymic turnover must be quantitatively assessed. The enzyme nitrite reductase from Alcaligenes faecalis contains a redox‐active blue copper centre and a nonblue ...
Astier, Y., Canters, G.W., Davis, J.J., Hill, H.A.O., Verbeet, M.P., Wijma, H.J.   +5 more
openaire   +3 more sources

A QM/MM Study of Nitrite Binding Modes in a Three-Domain Heme-Cu Nitrite Reductase

Molecules, 2018
Copper-containing nitrite reductases (CuNiRs) play a key role in the global nitrogen cycle by reducing nitrite (NO2−) to nitric oxide, a reaction that involves one electron and two protons.
Kakali Sen, Michael A. Hough, Richard W. Strange, Chin W. Yong, Thomas W. Keal   +4 more
doaj   +1 more source