Copper accumulation in agricultural soils: Risks for the food chain and soil microbial populations

Biofuel Production with Castor Bean: A Win–Win Strategy for Marginal Land

“…Copper accumulation, originating from the long-term use of Cu-based fungicides, carries an environmental risk of a progressive increase of Cu in agricultural soils [174]. Lead, considered one of the most hazardous PTEs, can have a geological origin in soils or be released into the environment by smelting, battery recycling, and mining [11].…”

“…Depending on soil type, CB is able to remove 5900 g•ha −1 of Cu in Inceptisol and 3052 g•ha −1 in Mollisol, with root copper concentration 90 times higher than that in leaves and stems [55]. Castor bean plants exhibit a bioconcentration factor (BCF, a ratio of element concentration in the plant shoots to element concentration in the soil [172,174,176]) and translocation factor (TF, ratio of element concentration in shoots and roots [177,178]) <1, indicating that CB is not a Cu accumulator plant and is well suited for phytostabilization due its low metal transfer rate [35,55,179]. Copper accumulation in CB seems to be directly related to phosphorous content in soils [35].…”

Catalyzing Holistic Agriculture Innovation Through Industrial Biotechnology

“…256,265,266 Agronomic practices such as tillage, chemicals application for weed and pest controls, row spacing, and the use of cover crops also influence rhizosphere and phyllosphere microbiomes by altering the physical and chemical structure of the environment or directly targeting members of the microbial communities. [267][268][269][270][271] The many opportunities that exist for intervening in plant metaphenomic systems underscore the challenges we face in trying to take a holistic approach to developing microbial solutions for agriculture. It is clear such an effort must be multidisciplinary in nature.…”

A Novel Method for Treating Heavy Metal-Contaminated Soil: The Combined Electrokinetics and Permeable Reactive Barrier Technique

“…The research of Aponte et al indicated that the soil enzyme activity decreased linearly in response to the contamination of heavy metals, which would change the cycling of carbon, nitrogen, phosphorus, sulphur in soil, and thus affects the soil ecosystem. In addition, heavy metal contamination could also pose selective pressure on the soil microbes, and alters their community structures (Aponte et al, 2020;Fagnano et al, 2020;Ma et al, 2020). Plants can absorb cadmium (Cd) from contaminated soil and transport it to their various organs, while Cd can lead to fading of the leaves, reduced photosynthesis, growth inhibition, malnutrition, abnormal nitrogen metabolism, and other symptoms in plants (Ali et al, 2015).…”