Low-Molecular-Mass Organic Acids in the Forest Soil Environment

Hubová, Petra; Tejnecký, Václav; Ash, Christopher; Borůvka, Luboš; Drábek, Ondřej

doi:10.2174/1570193x14666161130163034

Cited by 19 publications

(10 citation statements)

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“…Dissolved organic carbon and low molecular mass of organic acids. On the base of previous results, the most differences among land use are focused on top parts of the soil profile where LMMOA was mostly found (Hubová et al 2017). The description of this part of the profile is therefore extended to DOC and LMMOA evaluation (Figure 4, Table 5).…”

Section: Drift Spectramentioning

confidence: 95%

“…The quality of humus was determined by the absorbance ratio of sodium pyrophosphate (Na 4 P 2 O 7 ) soil extract at 400 nm and 600 nm (E4/E6, respectively) (Sparks 1996). The content of LMMOA was measured using ion chromatography (IC) with suppressed conductivity (Hubová et al 2017). Dissolved organic carbon content was measured by the wet dichromate oxidation method according to Tejnecký et al (2014).…”

Section: Methodsmentioning

confidence: 99%

“…Citrate concentration is higher under forest while lactate concentration is higher under grassland and cropland. Hubová et al (2017) showed that more acidic soil contains a higher concentration of citrate. The big value of standard deviation in LMMOA is natural for this slightly stable and highly variable component of soil organic matter.…”

Section: Drift Spectramentioning

confidence: 99%

“…The low molecular mass organic acid (LMMOA), which makes up about 10% of dissolved organic carbon (DOC), also characterises the compositions of soil organic matter. They are carboxylic acids of low molecular weight (Ash et al 2016) and could be aromatic or aliphatic (Hubová et al 2017). LMMOA are understood as relatively variable and unstable components of SOM (Strobel 2001).…”

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confidence: 99%

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Comparison of soil organic matter composition under different land uses by DRIFT spectroscopy

Thai¹,

Pavlů²,

Tejnecký³

et al. 2021

Plant Soil Environ.

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The study aimed to estimate and characterise soil organic matter under different land uses (cropland, grassland, and forest) and soil depths. The soil organic matter composition of the soil was assessed by diffuse reflectance infrared spectroscopy (DRIFT). Humic and fulvic acids (HAs, FAs) were extracted from soils and their compositions were evaluated by DRIFT. Low molecular mass organic acids content was also measured. Our result revealed that the largest differences of the spectra in the composition of organic matter were observed in the upper parts of the soil profile. The forest soil spectra had more intense aliphatic bands, carboxylic, and CH bands than spectra of grassland and cropland soils. The difference of HAs spectra was at 3 010 to 2 800/cm where the most intensive aliphatic bands were in forest soil HAs, followed by grassland and cropland soil HAs. The grassland topsoil FAs spectrum differs most from the other land uses. It has lower peaks around 1 660–1 600/cm and 1 200/cm than cropland and forest. The concentration of low molecular mass organic acid (LMMOA) was the highest in the forest soil and the most abundant acid was citrate.

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Section: Drift Spectramentioning

confidence: 95%

Section: Methodsmentioning

confidence: 99%

Section: Drift Spectramentioning

confidence: 99%

mentioning

confidence: 99%

See 2 more Smart Citations

Comparison of soil organic matter composition under different land uses by DRIFT spectroscopy

Thai¹,

Pavlů²,

Tejnecký³

et al. 2021

Plant Soil Environ.

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“…Dissolved organic matter (DOM) is one of the most active components of organic matter, which has a bene cial effect on the growth of plants (Trevisan et al 2010). It mainly originates from roots secretions and decomposed plant and animal bodies (Hubova et al 2017), but measures such as straw return and farmyard manure application in agroecosystems can bring in large amounts of DOM (Gondek et al 2018;Huang et al 2019). The DOM is rich in a variety of organic components with different molecular weights and negatively charged functional groups (Shan et al 2019), which can change the soil physicochemical properties when it enters the soil (Mei et al 2020) and affect the behavior of soil adsorption, desorption and complexation of Cd (Zhou et al 2017;Yuan et al 2015), which in turn affects the morphology, transformation, migration and bioeffectiveness of Cd (Pan and Zhou 2007; Lu et al 2020), ultimately causes changes in the Cd content in plants, resulting in changes in plant growth.…”

Section: Introductionmentioning

confidence: 99%

Effect of Dissolve Organic Matter Nn Cd Contaminated Cotton (Gossypium Hirsutum L.) Growth and Cd Uptake

Tao

Luo

Chen

et al. 2021

Preprint

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In this study, we investigated the effects of originating from cotton straw dissolved organic matter (CM) and farmyard manure dissolved organic matter (FM) on the physiological growth and Cd uptake and transport of cotton under two exogenous Cd addition gradients (5 mg·kg− 1 and 10 mg·kg− 1; 0 mg·kg− 1 as control) by pot experiments, and characterized the structures of CM and FM by UV-Visible spectroscopy. The results showed that CM had more low aromatic and low molecular weight hydrophibic fulvic acid fractions than FM. Cd stress reduced the total biomass (especially the lints), leaf photosynthetic intensity and SPAD value, increased the Cd content and transport coefficient in all parts of cotton, and stimulated the oxidative stress response in leaves. At low Cd levels (no exogenous Cd addition), application of DOM promoted cotton growth and increased leaf photosynthetic intensity and SPAD values; at medium to high Cd levels (5 mg·kg− 1 and 10 mg·kg− 1 exgenous Cd addition), application of DOM exhibited inhibitory effects on cotton growth (as shown by reduced leaf photosynthetic capacity, altered membrane antioxidant regulation) and changed Cd content in various parts of cotton. In addition, the inhibitory effect of CM on cotton growth and the ability to change Cd content in all parts was greater than that of FM. The redundancy analysis showed that the effect of DOM addition on cotton growth changed from promotion to inhibition when the level of exogenous Cd contamination reached 5 mg·kg− 1. Therefore, both straw return and farmyard manure application (especially straw return) in agricultural fields with high Cd contamination levels (≥ 5 mg·kg− 1) can be harmful to cotton physiological growth and pose a threat to cotton production.

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Roles of Organic Acids in Plant Stress Tolerance, Food Security, and Soil Remediation

Farhad,

Rana,

Ahmad

et al. 2023

Climate-Resilient Agriculture, Vol 1

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Low-Molecular-Mass Organic Acids in the Forest Soil Environment

Cited by 19 publications

References 0 publications

Comparison of soil organic matter composition under different land uses by DRIFT spectroscopy

Comparison of soil organic matter composition under different land uses by DRIFT spectroscopy

Effect of Dissolve Organic Matter Nn Cd Contaminated Cotton (Gossypium Hirsutum L.) Growth and Cd Uptake

Roles of Organic Acids in Plant Stress Tolerance, Food Security, and Soil Remediation

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