Results 31 to 40 of about 7,987 (160)

Population Kinetics and Mechanistic Aspects of Saccharomyces cerevisiae Growth in Relation to Selenium Sulfide Nanoparticle Synthesis

Frontiers in Microbiology, 2020
Biosynthesis of nanoparticles (NPs) by microorganisms is a cost- and energy-effective approach. However, how the production of NPs affects the population of producing organism remains as an unresolved question.
Farnoush Asghari-Paskiabi, Farnoush Asghari-Paskiabi, Mohammad Imani, Sana Eybpoosh, Hashem Rafii-Tabar, Mehdi Razzaghi-Abyaneh   +5 more
doaj   +1 more source

Deconstructing the Dissimilatory Sulfate Reduction Pathway: Isotope Fractionation of a Mutant Unable of Growth on Sulfate

Frontiers in Microbiology, 2018
The sulfur isotope record provides key insight into the history of Earth's redox conditions. A detailed understanding of the metabolisms driving this cycle, and specifically microbial sulfate reduction (MSR), is crucial for accurate paleoenvironmental ...
Emma Bertran, William D. Leavitt, William D. Leavitt, Andre Pellerin, Grant M. Zane, Judy D. Wall, Itay Halevy, Boswell A. Wing, David T. Johnston   +8 more
doaj   +1 more source

Micrografting Provides Evidence for Systemic Regulation of Sulfur Metabolism between Shoot and Root

Plants, 2021
The uptake of sulfate by roots and its reductive assimilation mainly in the leaves are not only essential for plant growth and development but also for defense responses against biotic and abiotic stresses. The latter functions result in stimulus-induced
Ilaria Forieri, Rasha Aref, Markus Wirtz, Rüdiger Hell   +3 more
doaj   +1 more source

Characterization and genome analysis of the first facultatively alkaliphilic Thermodesulfovibrio isolated from the deep terrestrial subsurface

Frontiers in Microbiology, 2016
Members of the genus Thermodesulfovibrio belong to the Nitrospirae phylum and all isolates characterized to date are neutrophiles. They have been isolated from terrestrial hot springs and thermophilic methanogenic anaerobic sludges.
Yulia Frank, Vitaly Kadnikov, Anastasia Lukina, David Banks, Alexey Beletsky, Andrey Mardanov, Elena Sen’kina, Marat Avakyan, Olga Karnachuk, Nikolai Ravin   +9 more
doaj   +1 more source

Mechanisms and evolution of oxidative sulfur metabolism in green sulfur bacteria

Frontiers in Microbiology, 2011
Green sulfur bacteria (GSB) constitute a closely related group of photoautotrophic and thiotrophic bacteria with limited phenotypic variation. They typically oxidize sulfide and thiosulfate to sulfate with sulfur globules as an intermediate.
Lea Haarup Gregersen, Donald A Bryant, Niels-Ulrik eFrigaard   +2 more
doaj   +1 more source

Evaluation of 50-mer oligonucleotide arrays for detecting microbial populations in environmental samples

BioTechniques, 2004
Microarrays fabricated with oligonucleotides longer than 40 bp have been introduced for monitoring whole genome expression but have not been evaluated with environmental samples.
Sonia M. Tiquia, Liyou Wu, Song C. Chong, Sergei Passovets, Dong Xu, Ying Xu, Jizhong Zhou   +6 more
doaj   +1 more source

Flavin Interaction in NADPH-Sulfite Reductase

Zeitschrift für Naturforschung B, 1972
E. coli NADPH-sulfite reductase, depleted of FMN but retaining its FAD, has been prepared by photoirradiation of native enzyme in 30% — saturated ammonium sulfate. FMN-depleted enzyme loses its ability to reduce (using NADPH) ferricyanide, cytochrome c, sulfite, or the enzyme’s own heme-like chromophore.
L M, Siegel, E J, Faeder, H, Kamin
openaire   +2 more sources

Enhancement of thioredoxin/glutaredoxin-mediated L-cysteine synthesis from S-sulfocysteine increases L-cysteine production in Escherichia coli

Microbial Cell Factories, 2012
Background Escherichia coli has two L-cysteine biosynthetic pathways; one is synthesized from O-acetyl L-serine (OAS) and sulfate by L-cysteine synthase (CysK), and another is produced via S-sulfocysteine (SSC) from OAS and thiosulfate by SSC synthase ...
Nakatani Takeshi, Ohtsu Iwao, Nonaka Gen, Wiriyathanawudhiwong Natthawut, Morigasaki Susumu, Takagi Hiroshi   +5 more
doaj   +1 more source

High-throughput genetics enables identification of nutrient utilization and accessory energy metabolism genes in a model methanogen

mBio
Archaea are widespread in the environment and play fundamental roles in diverse ecosystems; however, characterization of their unique biology requires advanced tools. This is particularly challenging when characterizing gene function.
Leslie A. Day, Hans K. Carlson, Dallas R. Fonseca, Adam P. Arkin, Morgan N. Price, Adam M. Deutschbauer, Kyle C. Costa   +6 more
doaj   +1 more source

Transcriptomic evidence for microbial sulfur cycling in the eastern tropical North Pacific oxygen minimum zone

Frontiers in Microbiology, 2015
Microbial communities play central roles in ocean biogeochemical cycles, and are particularly important in in oceanic oxygen minimum zones (OMZs). However, the key carbon, nitrogen, and sulfur (S) cycling processes catalyzed by OMZ microbial communities
Molly Carolan, J Michael Beman
doaj   +1 more source