Application of Plant-Microbe Interactions in Contaminated Agroecosystem Management

Umaru, Fredrick Fidelis; Owuama, C.I.

doi:10.1007/978-981-13-1187-1_4

Cited by 3 publications

(1 citation statement)

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“…Root exudates include cell exfoliates and lysates, high-molecular-weight gels, and low-molecular-weight organic compounds [6]. Re-searches have shown that root exudates are of great significance for the removal of pollutants because they change the solubility and mobility of metal ions in the environment [7]. The removal rate of Cr(VI) can be increased when maize root exudates are used as a carbon source [8].…”

Section: Introductionmentioning

confidence: 99%

Effects of alfalfa root exudates on the microbial remediation of nitrate-heavy metal complex pollution in groundwater

Li¹,

Dai²,

Wen-juan³

et al. 2021

ScienceAsia

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The effects of root exudate addition on Fe(II) oxidation, nitrate degradation, and heavy metal removal by Clostridium sp. strain PXL2 were studied. The root exudate addition could increase the average oxidation rate of Fe(II) from 0.52 to 0.68 mM Fe(II)/d. The removal rate of nitrate, arsenic, and mercury could be increased from 54% to 95%, 84% to 99%, and 60% to 86%, respectively. The complexation of Fe(III) with the root exudates was analyzed by quenching titration. The results showed that there was a complexation of root exudates with Fe(III). This complexation resulted in increased precipitation of iron oxides and further promoted the removal of heavy metals.

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Section: Introductionmentioning

confidence: 99%