2,4-Dichlorophenoxyacetic acid (2,4-D) sorption and degradation dynamics in three agricultural soils

Boivin, Arnaud; Amellal, Samira; Schiavon, Michel; Genuchten, Martinus Th. van

doi:10.1016/j.envpol.2005.02.016

Cited by 153 publications

(87 citation statements)

References 22 publications

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“…Therefore, their dissipation was mainly due to biodegradation mediated by microbial processes. Biodegradation process, catalyzed by soil microbes, is governed by both abiotic and biotic factors (Boivin et al 2005). There were several possible ways through which root exudate components enhanced the biodegradation of BDE-28 and BDE-47 in the soils.…”

Section: Discussionmentioning

confidence: 99%

Influences of artificial root exudate components on the behaviors of BDE-28 and BDE-47 in soils: desorption, availability, and biodegradation

Huang

Wang

et al. 2016

Environ Sci Pollut Res

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Behaviors of BDE-28 and BDE-47 in two distinct soils (Phaeozem and Acrisol) as affected by the separate addition of root exudate components (i.e., oxalic acid, glycine, and fructose) were investigated by a soil microcosm incubation experiment. The results showed that root exudate components promoted the desorption of BDE-28 (57.6-235.0 %) and BDE-47 (56.9-223.7 %) from the soils due to the enhancement of their water solubilities. The addition of root exudate components increased the n-butanol extractability of BDE-28 and BDE-47 by 20.3-72.5 and 48.6-169.2 %, respectively, which had a positive correlation with the concentrations of dissolved organic carbon (DOC) in the soils (p < 0.01), suggesting that the increase of DOC in the soils by root exudate components was the major factor to enhance the extractability. Fructose and oxalic acid promoted the desorption and increased the availability of BDE-28 and BDE-47 in the soils more efficiently than glycine. The addition of different root exudate components resulted in distinct shifts in soil microbial community structure (p < 0.05). Oxalic acid caused the greatest impacts on the soil bacterial communities and increased the degradation rates of BDE-28 and BDE-47 most obviously. The findings of this study clarified the roles of root exudate components in affecting the behaviors of polybrominated diphenyl ethers (PBDEs) in soils.

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Section: Discussionmentioning

confidence: 99%

Influences of artificial root exudate components on the behaviors of BDE-28 and BDE-47 in soils: desorption, availability, and biodegradation

Huang

Wang

et al. 2016

Environ Sci Pollut Res

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“…Although 2,4-D is highly mobile, rapid mineralization rates may reduce the potential of 2,4-D to affect groundwater (Boivin et al, 2005). The compound 2,4-D has been detected in streams and shallow groundwater at low concentrations, in both rural and urban areas (McPherson et al, 2003).…”

Section: Characterization Of the Physico-chemical Properties Of The Hmentioning

confidence: 99%

Herbicides Persistence in Rice Paddy Water in Southern Brazil

Zanella¹,

Adaime²,

Peixoto³

et al. 2011

Herbicides - Mechanisms and Mode of Action

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“…The overall mineralization rates of [pyrimidine-4,6-14 C] ZJ0273 and [benzyl-U-14 C] ZJ0273 were correlated with soil pH (p < 0.05) and organic matter content (p < 0.05). The soil S 1 was more acidic (pH 4.20) and also had less organic matter than the other two soils (Table 1), which may have brought about limited microbial activity in this soil and hence a limited mineralization potential (Boivin et al, 2005). The slow mineralization of ZJ0273 in acidic soil and implications for risk assessment and management merit were further investigated.…”

Section: Mineralizationmentioning

confidence: 99%

Environment Behavior and Fate of a New Pyrimidynyloxybenzoic Herbicide ZJ0273 in Aerobic Soil

Wang¹,

Zhang²,

Yu³

et al. 2011

Herbicides and Environment

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2,4-Dichlorophenoxyacetic acid (2,4-D) sorption and degradation dynamics in three agricultural soils

Cited by 153 publications

References 22 publications

Influences of artificial root exudate components on the behaviors of BDE-28 and BDE-47 in soils: desorption, availability, and biodegradation

Influences of artificial root exudate components on the behaviors of BDE-28 and BDE-47 in soils: desorption, availability, and biodegradation

Herbicides Persistence in Rice Paddy Water in Southern Brazil

Environment Behavior and Fate of a New Pyrimidynyloxybenzoic Herbicide ZJ0273 in Aerobic Soil

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