Results 141 to 150 of about 347,780 (327)

Enzymatic activity toward poly(L-lactic acid) implants [PDF]

open access: yes, 1990
Tissue reactions toward biodegradable poly(L-lactic acid) implants were monitored by studying the activity pattern of seven enzymes as a function of time: alkaline phosphatase, acid phosphatase, -naphthyl acetyl esterase, -glucuronidase, ATP-ase, NADH ...
Feijen, J.   +4 more
core   +4 more sources

The Role of N6‐Methyladenosine Modification in Health and Disease

open access: yesMedComm, Volume 7, Issue 6, June 2026.
N6‐methyladenosine (m6A) is the most prevalent internal RNA modification in eukaryotes, acting as a pivotal epitranscriptomic regulator of RNA metabolism. This modification plays a dual role: it maintains physiological homeostasis under normal conditions but drives disease progression when dysregulated.
Linghuan Li   +6 more
wiley   +1 more source

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

open access: yesMolecules, 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   +4 more
doaj   +1 more source

0099. Nitrite reductase activity during sepsis [PDF]

open access: gold, 2014
Violette C. Simon   +4 more
openalex   +1 more source

Enzymatic Properties of the Ferredoxin-Dependent Nitrite Reductase from Chlamydomonas reinhardtii. Evidence for hydroxylamine as a late intermediate in ammonia production

open access: yesPhotosynthesis Research, 2009
The ferredoxin-dependent nitrite reductase from the green alga Chlamydomonas reinhardtii has been cloned, expressed in Escherichia coli as a His-tagged recombinant protein, and purified to homogeneity.
M. Hirasawa   +11 more
semanticscholar   +1 more source

Effect of Metal Cations on Selenite Bioreduction by a Consortium of Halophilic/Halotolerant Bacteria and/or Yeast

open access: yesEnvironmental Microbiology Reports, Volume 18, Issue 3, June 2026.
Evaluation the effects of potentially toxic co‐contaminating metal cations, including cadmium (Cd), lead (Pb), and Zinc (Zn), on the bioreduction of selenite by a consortium of halotolerant and halophilic bacteria and/or yeast. ABSTRACT Selenium oxyanion pollution in the environment, often originating from anthropogenic industrial activities, causes ...
Elham Lashani   +3 more
wiley   +1 more source

Diatom Proteomics Reveals Unique Acclimation Strategies to Mitigate Fe Limitation [PDF]

open access: yes, 2015
Phytoplankton growth rates are limited by the supply of iron (Fe) in approximately one third of the open ocean, with major implications for carbon dioxide sequestration and carbon (C) biogeochemistry.
Boyd, Philip W.   +7 more
core   +1 more source

Elucidating the Functional and Taxonomic Diversity of Soil Microbial Communities From Three Commercial Soybean Farms in South Africa

open access: yesEnvironmental Microbiology Reports, Volume 18, Issue 3, June 2026.
Prior to inoculation of soybeans, South African soils contain no Bradyhizobia that nodulate and fix nitrogen in soybeans. Soybean cultivation with prolonged inoculation resulted in the establishment and dominance of Bradyrhizobia in three soybean farms in South Africa as revealed by a microbial community study using shotgun metagenomics. ABSTRACT Prior
Khumbudzo Ndhlovu   +5 more
wiley   +1 more source

The Seasonal and Spatial Patterns of Planktonic Bacterial and Fungal Community Structure and the Response to Environmental Factors in the Danjiangkou Reservoir, China

open access: yesEnvironmental Microbiology Reports, Volume 18, Issue 3, June 2026.
This study investigated the spatial and temporal distribution patterns of bacterial and fungal communities in the Danjiangkou Reservoir during dry season and wet season, revealing the mechanism by which seasonal variations drive changes in microbial community composition and function through their influence on the physicochemical properties of the ...
Yarui Cheng   +5 more
wiley   +1 more source

Analysis of Microbial Diversity Dominating Nitrite Enzymatic Degradation and Acidic Degradation in the Fermentation Broth of Northeast Sauerkraut

open access: yesFoods
Nitrite hazard is an important food safety issue in the production process of Chinese Northeastern sauerkraut, but this nitrite can be eliminated through microbial enzymatic degradation and acidic degradation as fermentation progresses.
Xiangru Xu   +3 more
doaj   +1 more source

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