scholarly journals Reactive oxygen species alter chemical composition and adsorptive fractionation of soil-derived organic matter

Geoderma ◽  
2021 ◽  
Vol 384 ◽  
pp. 114805
Author(s):  
Kaizad F. Patel ◽  
Václav Tejnecký ◽  
Tsutomu Ohno ◽  
Vanessa L. Bailey ◽  
Rachel L. Sleighter ◽  
...  
Keyword(s):  
Reactive Oxygen Species ◽  
Organic Matter ◽  
Chemical Composition ◽  
Reactive Oxygen ◽  
Oxygen Species

scholarly journals The role of reactive oxygen species in the degradation of lignin derived dissolved organic matter

2017 ◽  
Vol 208 ◽  
pp. 171-184 ◽  
Author(s):  
Derek C. Waggoner ◽  
Andrew S. Wozniak ◽  
Rose M. Cory ◽  
Patrick G. Hatcher
Keyword(s):  
Reactive Oxygen Species ◽  
Organic Matter ◽  
Dissolved Organic Matter ◽  
Reactive Oxygen ◽  
Oxygen Species

Complex organic corona formation on carbon nanotubes reduces microbial toxicity by suppressing reactive oxygen species production

2016 ◽  
Vol 3 (1) ◽  
pp. 181-189 ◽  
Author(s):  
J. R. Lawrence ◽  
G. D. W. Swerhone ◽  
J. J. Dynes ◽  
A. P. Hitchcock ◽  
D. R. Korber
Keyword(s):  
Reactive Oxygen Species ◽  
Carbon Nanotubes ◽  
Organic Matter ◽  
Reactive Oxygen Species Production ◽  
Reactive Oxygen ◽  
Oxygen Species ◽  
Microbial Toxicity ◽  
Corona Formation ◽  
Species Production ◽  
Complex Organic

Interactions of carbon nanotubes with organic matter and microbes creates a corona which reduces toxicity.

scholarly journals Warming Alters Plant Chemical and Nutrient Compositions by Affecting Metabolites in Cunninghamia lanceolata (Lamb.) Hook

Forests ◽  
2019 ◽  
Vol 10 (7) ◽  
pp. 553
Author(s):  
Qiufang Zhang ◽  
Zhijie Yang ◽  
Tingting Chen ◽  
Xiaoying Gong ◽  
Decheng Xiong ◽  
...  
Keyword(s):  
Reactive Oxygen Species ◽  
Amino Acids ◽  
Heat Stress ◽  
Chemical Composition ◽  
Phenolic Compounds ◽  
Reactive Oxygen ◽  
Moisture Stress ◽  
Cunninghamia Lanceolata ◽  
Oxygen Species ◽  
Plant Chemical

Research Highlights: Warming alters the chemical composition of Cunninghamia lanceolata (Lamb.) Hook, resulting in increased production of macromolecular compounds that protect against heat stress. Background and Objectives: Low latitude forests are experiencing obvious climatic warming; however, the plant physiological responses to warming are not well understood. As warming induces moisture stress, we hypothesized that warming activates metabolites (i.e., lipids, phenolic compounds, amino acids) and causes damage to the leaves, exemplified by the increased concentrations of reactive oxygen species. Materials and Methods: We conducted a warming experiment in a C. lanceolata plantation. Plant physiological traits associated with nutrient status, reactive oxygen species, antioxidant enzymes species, and metabolites were measured. Results: Warming altered the chemical composition of C. lanceolata as it increased C:N ratios of leaves and roots. In particular, the concentrations of N and P in leaves and roots were significantly decreased under the warming condition, which might be related to the biomass production, namely, a dilution effect. Under the warming condition, most of the phospholipid compounds and proteins significantly increased. Leaf C, carbohydrates, amino acids, organic acids, flavonoids, and phenolic compounds were identified to have significantly lower concentrations under the warming treatment than those under the control treatment. These results suggested that moisture stress under the warming treatment may drive C deficiency and metabolic restriction in plants. Conclusions: Under the warming condition, C. lanceolata changed its energy utilization strategy and invested more resources to produce macromolecular compounds for protecting against heat stress. Warming in sub-tropical forests alters plant chemical properties, and thus may have an important consequence for nutrient cycling and soil C sequestration.

Photo-production of reactive oxygen species and degradation of dissolved organic matter by hematite nanoplates functionalized by adsorbed oxalate

2020 ◽  
Vol 7 (8) ◽  
pp. 2278-2292 ◽  
Author(s):  
Xiaopeng Huang ◽  
Qian Zhao ◽  
Robert P. Young ◽  
Xin Zhang ◽  
Eric D. Walter ◽  
...  
Keyword(s):  
Reactive Oxygen Species ◽  
Organic Matter ◽  
Dissolved Organic Matter ◽  
Reactive Oxygen ◽  
Euphotic Zone ◽  
Aquatic Systems ◽  
Oxygen Species ◽  
Geochemical Cycling ◽  
Photo Production

The geochemical cycling of iron and carbon can couple in unique ways in the euphotic zone of aquatic systems.

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