Results 91 to 100 of about 88,950 (284)

H₂-Independent Growth of the Hydrogenotrophic Methanogen Methanococcus maripaludis

mBio, 2013
Hydrogenotrophic methanogenic Archaea require reduced ferredoxin as an anaplerotic source of electrons for methanogenesis. H2 oxidation by the hydrogenase Eha provides these electrons, consistent with an H2 requirement for growth.
Kyle C. Costa, Thomas J. Lie, Michael A. Jacobs, John A. Leigh   +3 more
doaj   +1 more source

Biomaterial design strategies for enhancing mitochondrial transplantation therapy

BMEMat, EarlyView.
Biomaterials to facilitate mitochondrial transplantation therapy: biomaterials as barriers to protect mitochondria from pathophysiological microenvironments, like osmotic stress caused by the excessive concentration of calcium ion, reactive oxygen species, and advanced glycation end products; biomaterials integrating with biochemical cues to improve ...
Shaoyang Kang, Yushan Zhang, Hang Li, Sirui Peng, Donghao Lyu, Chunxiao Zhou, Sheng Ding, Zujian Feng, Pingsheng Huang, Chuangnian Zhang, Hongjun Wang, Deling Kong, Weiwei Wang   +12 more
wiley   +1 more source

Functional indicators of response mechanisms to nitrogen deposition, ozone, and their interaction in two Mediterranean tree species [PDF]

, 2017
The effects of nitrogen (N) deposition, tropospheric ozone (O3) and their interaction were investigated in two Mediterranean tree species, Fraxinus ornus L. (deciduous) and Quercus ilex L.
Basile, Adriana, Fusaro, Lina, Karam, Elham Asadi, Manes, Fausto, Maresca, Viviana, Palma, Adriano, Salvatori, Elisabetta   +6 more
core   +2 more sources

Influence of Nanomaterials and Nanocomposites on the Nutrient Composition

Food Safety and Health, EarlyView.
Nanomaterials and nanocomposites enhance crop nutrition and food quality by improving nutrient availability, plant uptake, and bioavailability through controlled delivery and nano‐encapsulation. Their applications in agriculture and food systems enable sustainable biofortification, improved preservation, and functional foods, while emphasizing safety ...
Akanksha Dwivedi, Roohi Yusufi, G. N. Darwhekar, Kuldeep Vinchurkar, Vijay R. Chidrawar   +4 more
wiley   +1 more source

Electron transport phosphorylation in rumen butyrivibrios: unprecedented ATP yield for glucose fermentation to butyrate. [PDF]

, 2015
From a genomic analysis of rumen butyrivibrios (Butyrivibrio and Pseudobutyrivibrio sp.), we have re-evaluated the contribution of electron transport phosphorylation (ETP) to ATP formation in this group.
Firkins, Jeffrey L, Hackmann, Timothy J
core   +2 more sources

Deep Proteomic Profiles of the Antarctic Diatom Fragilariopsis Cylindrus Under Varying Iron and Manganese Conditions

PROTEOMICS, EarlyView.
ABSTRACT Fragilariopsis cylindrus is a key diatom in the Southern Ocean, where low iron and manganese availability constrain primary production and biogeochemical activity. The molecular mechanisms used by polar diatoms, including F. cylindrus, to cope with trace metal limitations remain largely unexplored.
Loay J. Jabre, Elden Rowland, J. Scott P. McCain, Erin M. Bertrand   +3 more
wiley   +1 more source

The oxygen-independent metabolism of cyclic monoterpenes in Castellaniella defragrans 65Phen [PDF]

, 2014
BACKGROUND: The facultatively anaerobic betaproteobacterium Castellaniella defragrans 65Phen utilizes acyclic, monocyclic and bicyclic monoterpenes as sole carbon source under oxic as well as anoxic conditions.
Becher, D., Disch, E., Harder, J., Huettel, B., Markert, S., Petasch, J., Reinhardt, R., Schweder, T.   +7 more
core   +2 more sources

Structural Analysis and Inhibitor Modeling of Bacterioferritin From Brucella abortus

Proteins: Structure, Function, and Bioinformatics, EarlyView.
ABSTRACT Iron homeostasis in various pathogenic bacteria is regulated by bacterioferritins (Bfr) which function to store Fe3+ and release Fe2+ as needed for metabolic processes. The Bfr structure consists of 18 kDa subunits in which dimer pairs bind a heme molecule and are assembled into a highly symmetrical 24‐meric spherical structure with an ...
Lijun Liu, Elizabeth K. Harmon, Justin K. Craig, Huili Yao, Kevin P. Battaile, David K. Johnson, Sandhya Subramanian, Wesley C. Van Voorhis, Mario Rivera, Scott Lovell   +9 more
wiley   +1 more source

Protease-associated import systems are widespread in Gram-negative bacteria.

PLoS Genetics, 2019
Bacteria have evolved sophisticated uptake machineries in order to obtain the nutrients required for growth. Gram-negative plant pathogens of the genus Pectobacterium obtain iron from the protein ferredoxin, which is produced by their plant hosts.
Rhys Grinter, Pok Man Leung, Lakshmi C Wijeyewickrema, Dene Littler, Simone Beckham, Robert N Pike, Daniel Walker, Chris Greening, Trevor Lithgow   +8 more
doaj   +1 more source

Ferredoxin containing bacteriocins suggest a novel mechanism of iron uptake in Pectobacterium spp.

PLoS ONE, 2012
In order to kill competing strains of the same or closely related bacterial species, many bacteria produce potent narrow-spectrum protein antibiotics known as bacteriocins. Two sequenced strains of the phytopathogenic bacterium Pectobacterium carotovorum
Rhys Grinter, Joel Milner, Daniel Walker
doaj   +1 more source