Results 61 to 70 of about 14,501 (252)
Nghiên cứu này đánh giá khả năng sinh trưởng và xử lý nước thải nuôi trồng thủy sản lợ mặn của vi khuẩn quang hợp Rhodopseudomonas sp. phân lập được ở ven biển tỉnh Thừa Thiên Huế.
Le Van Tuan +2 more
doaj +1 more source
Abstract Biological nitrogen fixation in symbiotic diazotrophs is subject to oxygen regulation by an oxygen‐sensing FixLJ two‐component system under micro‐oxic conditions. However, it remains unclear whether this mechanism is conserved in free‐living diazotrophs.
Lingwei Cui +6 more
wiley +1 more source
Engineering Fluoroacetate Dehalogenase by Growth‐Based Selections on Non‐Natural Organofluorides
We present a high‐throughput selection system to engineer fluoroacetate dehalogenases (FAcDs). By challenging E. coli populations that produce diverse FAcD libraries to grow on non‐natural organofluorides as their sole carbon source, we isolated a panel of FAcD variants with improved activity and altered substrate specificity.
Suzanne C. Jansen +2 more
wiley +2 more sources
Polyesterase activity and thermostability of carboxylesterases from Thermoleophilum album YS‐3
Three novel α/β‐hydrolases from thermophilic bacterium Thermoleophilum album display carboxylesterase and polyesterase activity. These enzymes hydrolyse PET, PLA and PCL both at high and moderate temperatures. TA21 shows superior activity, efficiently converting MHET to terephthalic acid. Structural features underlying substrate binding highlight their
Tatyana N. Chernikova +6 more
wiley +1 more source
Structural Homology of Reaction Centers from Rhodopseudomonas sphaeroides and Rhodopseudomonas viridis as Determined by X-ray Diffraction [PDF]
Crystals of the reaction center (RC) from Rhodopseudomonas sphaeroides with the space group P2_12_12_1, have been studied by x-ray diffraction. The Patterson search (molecular replacement) technique was used to analyze the data, with the structure of the
Allen, J. P. +10 more
core +1 more source
Background Whole-cell biocatalysis has been exploited to convert a variety of substrates into high-value bulk or chiral fine chemicals. However, the traditional whole-cell biocatalysis typically utilizes the heterotrophic microbes as the biocatalyst ...
Yang Zhang +5 more
doaj +1 more source
Urologic Bacteriome: The Hero or the Villain in Prostate Cancer Onset, Progression, and Treatment?
ABSTRACT Prostate cancer (PCa) is the second most frequently diagnosed cancer in men worldwide and the fifth leading cause of cancer‐related mortality, presenting urgent unmet clinical needs in diagnosis and treatment. The recognition of the microbiome as a key factor in human health has prompted numerous studies, revealing an exciting new approach to ...
Lara R. S. Fonseca +6 more
wiley +1 more source
Photosynthetic primary production in the Mesoproterozoic
Summary The Mesoproterozoic atmosphere had more CO2 and less O2 than at present. While the upper ocean was oxygenated, the deeper ocean was euxinic or ferruginous. Primary production was performed by Chlorobia, Cyanobacteria, Proteobacteria, and Archaeplastida.
Patricia Sánchez‐Baracaldo +1 more
wiley +1 more source
Hydrolysis and Oxidation of Recalcitrant Substrates by Microbial Isolates from Hot Springs
Traditional energy sources pollute the environment. Microbial fuel cells are an alternative energy source that can reduce the environmental burden. Microbial fuel cells also remove recalcitrant wastes from wastewater. This research featured the enzymatic
Anastasiya I. Dmitrieva +5 more
doaj +1 more source
Reduction of selenite to red elemental selenium by Rhodopseudomonas palustris strain N.
The trace metal selenium is in demand for health supplements to human and animal nutrition. We studied the reduction of selenite (SeO₃⁻²) to red elemental selenium by Rhodopseudomonas palustris strain N.
Baozhen Li +9 more
doaj +1 more source

