Effects of several low-molecular weight organic acids and phosphate on the adsorption of acid phosphatase by soil colloids and minerals

Huang, Qiaoyun; Zhao, Zhen‐Hua; Chen, Wenli

doi:10.1016/s0045-6535(03)00238-8

Cited by 69 publications

(31 citation statements)

References 25 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Conventionally, the density fractionation method can only remove the free light particulate organic matter that is not occluded in the microaggregates (Angers, 1998;Peng et al, 2004). Some labile enzymes, microorganisms or aggregate-forming polysaccharides are still preserved in the heavy organic matter or on the surface of the microaggregates (Huang et al, 2003;Taubaso et al, 2004). However, the acid hydrolysis method can largely remove the labile components mentioned above, and the residues (ROC) are the chemically recalcitrant organic carbon (Six et al, 2002).…”

Section: Discussionmentioning

confidence: 99%

Soil Organic Carbon and Its Fractions Across Vegetation Types: Effects of Soil Mineral Surface Area and Microaggregates

Wang

Ouyang

2009

Pedosphere

View full text Add to dashboard Cite

Soil organic carbon (SOC) can act as a sink or source of atmospheric carbon dioxide; therefore, it is important to understand the amount and composition of SOC in terrestrial ecosystems, the spatial variation in SOC, and the underlying mechanisms that stabilize SOC. In this study, density fractionation and acid hydrolysis were used to assess the spatial variation in SOC, the heavy fraction of organic carbon (HFOC), and the resistant organic carbon (ROC) in soils of the southern Hulun Buir region, northeastern China, and to identify the major factors that contribute to this variation. The results showed that as the contents of clay and silt particles (0-50 μm) increased, both methylene blue (MB) adsorption by soil minerals and microaggregate contents increased in the 0-20 and 20-40 cm soil layers (P < 0.05). Although varying with vegetation types, SOC, HFOC, and ROC contents increased significantly with the content of clay and silt particles, MB adsorption by soil minerals, and microaggregate content (P < 0.05), suggesting that soil texture, the MB adsorption by soil minerals, and microaggregate abundance might be important factors influencing the spatial heterogeneity of carbon contents in soils of the southern Hulun Buir region.

show abstract

Section: Discussionmentioning

confidence: 99%

Soil Organic Carbon and Its Fractions Across Vegetation Types: Effects of Soil Mineral Surface Area and Microaggregates

Wang

Ouyang

2009

Pedosphere

View full text Add to dashboard Cite

show abstract

“…Phosphodiesterase activity was significantly increased by citric acid in the sandy and clay soil. Furthermore, Huang et al (2003) reported that LMWOAs may have an effect on the sorption/ desorption activity of acid phosphomonoesterase in soil.…”

Section: Resultsmentioning

confidence: 99%

Combined effect of low-molecular-weight organic acids and creosote on phosphatase activities in sandy soil

Telesiński

Płatkowski

Krzyśko–Łupicka

et al. 2018

pjss

View full text Add to dashboard Cite

Abstract. This paper assesses the impact of creosote and low-molecular-weight organic acids (LMWOAs) on the activity of acid phosphomonoesterase, alkaline phosphomonoesterase, phosphotriesterase, and inorganic pyrophosphatase in soil. The experiment was carried out on loamy sand samples with organic carbon content of 8.71 g·kg -1 , with the following variable factors: dosages of creosote: 0, 0.5%, and 2.5%; type of LMWOAs: oxalic acid, tartaric acid, and citric acid in the amount of 50 mmol·kg -1 of soil; days of experiment: 1, 7, 14, 28, 56, 112. Obtained results showed that contamination with creosote caused decrease in the activity of soil phosphatases. The observed effect did not always increase with increase in the dosage of the pollutant. Among the assayed phosphatases, the biggest changes were noted in the activity of phosphomonoesterases. Application of LMWOAs to contaminated soil mainly effected the inhibition of phospha- tase, especially the activity of acid phosphomonoesterase. Comparison of the effects of LMWOAs showed that the citric acid was the least toxic to soil phosphatases.

show abstract

“…The effects of organic molecules and phosphate on the adsorption of acid phosphatase on various minerals, and kaolinite in particular, have been investigated by Huang et al [97]. The Langmuir affinity constant for AcP adsorption by kaolinite follows the series:…”

Section: Immobilization In Clay Minerals and Related Materialsmentioning

confidence: 99%

Enzyme‐Based Bioinorganic Materials

Forano

Prévot

2007

Bio‐inorganic Hybrid Nanomaterials

View full text Add to dashboard Cite

Trends in research materials currently focus on innovation in the field of intelligent or smart materials [1]. Smart materials are materials that display functionalities able to detect a change in the near environment, answer to a stimulus, modify a property, store, transfer or convert a signal, in a sense behave like living cells. The design of smart materials focuses on the concept of biomimetic materials [2][3][4] in order to reproduce specific and selective properties not deliverable by standard chemical or physical processes. Hence, there has been much effort concentrated on the development of enzyme-based biohybrid materials. Enzyme-based biohybrid materials are under much investigation for the operation of physical or chemical functions. Enzymes display active and selective properties such as molecular recognition, complexation or carrier functions, and a wide range of catalytic reactions (hydrolysis, condensation, redox reaction, isomerization, reaction transfer). Enzymes are thus very attractive as an alternative to traditional catalysts when chemical routes are difficult to apply. Enzymes are able to catalyze regio-and stereo-selective reactions with rate accelerations up to 10-17 fold [17]. They are interesting materials for realization of sensing devices, recognition systems and nanoreactors with many potential industrial developments in biocatalysis [4] for the food industry or effluent treatment [5,6], in biomedical domains for medical implants or enzyme delivery [7], in bioanalysis and affinity chromatography [8,9], and in biosensor technology [10][11][12].Engineering the development of biohybrid enzyme-based materials requires solution of the limitations of the use of enzymes due to their intrinsic fragility against the various environmental stresses and their narrow range of working conditions (e.g. short pH and temperature range). Embedding enzymes in protective matrices in order to solve these problems has been envisaged for many years [13,14]. Immobilization of enzymes in solid supports is seen as a strategy to preserve the active site, to improve the performance of the enzyme, that is, its activity, reaction rate and long-term stability, and to allow enzyme reuse. Physical and chemical properties of the solid supports such as particle size, surface area, pore diameter, mechanical j443 Bio-inorganic Hybrid Nanomaterials. Edited

show abstract

Effects of several low-molecular weight organic acids and phosphate on the adsorption of acid phosphatase by soil colloids and minerals

Cited by 69 publications

References 25 publications

Soil Organic Carbon and Its Fractions Across Vegetation Types: Effects of Soil Mineral Surface Area and Microaggregates

Soil Organic Carbon and Its Fractions Across Vegetation Types: Effects of Soil Mineral Surface Area and Microaggregates

Combined effect of low-molecular-weight organic acids and creosote on phosphatase activities in sandy soil

Enzyme‐Based Bioinorganic Materials

Contact Info

Product

Resources

About