Physiological and biochemical characterization of copper-toxicity tolerance mechanism in grass species native to Pampa Biome and Atlantic Forest for use in phytoremediation

Marques, Anderson César Ramos; Hindersmann, Jacson; Trentin, Edicarla; Conti, Lessandro De; Drescher, Gerson Laerson; Somavilla, André; Tabaldi, Luciane Almeri; Schawalbert, Raíssa; Birck, Thalía Preussler; Nicoloso, Fernando Teixeira; Brunetto, Gustavo

doi:10.1007/s11356-022-22570-3

Cited by 6 publications

(4 citation statements)

References 29 publications

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“…Although the studied species do not present characteristics of hyperaccumulation species, they were adapted to the vineyard environments. On the other hand, there is a need for conduct further research on genotypes or species for phytoremediation in South America, including native species that showed great potential for Cu removal (Marques et al., 2022; Silva et al., 2020).…”

Section: Discussionmentioning

confidence: 99%

Phytoremediation of Cu‐contaminated vineyard soils in Brazil: A compendium of Brazilian pot studies

et al. 2023

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Vineyard soils can be contaminated by copper (Cu) due to successive applications of fungicides and organic fertilizers. Soil remediation can be addressed by altering soil properties or selecting efficient Cu‐extracting cover crops tolerant to Cu toxicity. Our objectives were to synthesize the Cu‐extracting efficiency by plant species tested in Brazil, classify them according to Cu resistance to toxicity, and assess the effect of soil properties on attenuating Cu toxicity. We retrieved results from 41 species and cultivars, totaling 565 observations. Freshly added Cu varied between 50 and 600 mg Cu kg−1 of soil across studies. The partition of Cu removal between the above‐ and below‐ground portions was scaled as a logistic variable to facilitate data synthesis. The data were analyzed using the Adaboost machine learning model. Model accuracy (predicted vs. actual values) reached R2 = 0.862 after relating species, cultivar, Cu addition, clay, SOM, pH, soil test P, and Cu as features to predict the logistic target variable. Tissue Cu concentration varied between 7 and 105 mg Cu kg−1 in the shoot and between 73 and 1340 mg Cu kg−1 in the roots. Among soil properties, organic matter and soil test Cu most influenced the accuracy of the model. Phaseolus vulgaris, Brassica juncea, Ricinus communis, Hordeum vulgare, Sorghum vulgare, Cajanus cajan, Solanum lycopersicum, and Crotolaria spectabilis were the most efficient Cu‐extracting cover crops, as shown by positive values of the logistic variable (shoot removal > root removal). Those Cu‐tolerant plants showed differential capacity to extract Cu in the long run.

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Section: Discussionmentioning

confidence: 99%

Phytoremediation of Cu‐contaminated vineyard soils in Brazil: A compendium of Brazilian pot studies

et al. 2023

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“…Plant root exudates modulate the activity of heavy metals through the regulation of the pH of the rhizosphere, the redox state of the rhizosphere, and the precipitation chelating of heavy metals to reduce the stress. Three native grass species of the Atlantic forest have been found to have phytoremediation potential [108]. Paspalum notatum (fork grass), Paspalum plicatulum (mattress grass), and Paspalum urvillei (roça grass) promote carboxylic groups (-COO-) and Cu + complexation by releasing root exudates to reduce Cu bioavailability and thus promote plant growth [108].…”

Section: Soil Metal Stress Relieved By Root Exudatesmentioning

confidence: 99%

“…Three native grass species of the Atlantic forest have been found to have phytoremediation potential [108]. Paspalum notatum (fork grass), Paspalum plicatulum (mattress grass), and Paspalum urvillei (roça grass) promote carboxylic groups (-COO-) and Cu + complexation by releasing root exudates to reduce Cu bioavailability and thus promote plant growth [108]. The availability of metal in soil is significantly influenced by the pH.…”

Section: Soil Metal Stress Relieved By Root Exudatesmentioning

confidence: 99%

Advances in Plant–Soil Feedback Driven by Root Exudates in Forest Ecosystems

Sun,

Li,

Qiao

et al. 2024

Forests

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Plant–soil feedback (PSF) was initially developed in the field of agricultural practices. In recent years, PSF has been extended to various ecosystems. Root exudates, essential for the exchange of materials, energy, and information at the plant–soil interface, significantly influence PSF. However, how PSF is driven by root secretions and the role of these secretions in different PSF pathways still needs to be further explored, particularly in forest ecosystems. Soil nutrients, microbial communities, and nematodes are important research topics in the process of PSF driven by root exudates. Investigating these aspects driven by root exudates provides valuable insights into the complex interactions both above ground and below the surface. This research can offer theoretical support and guidance for building stable, healthy, and sustainable forest ecosystems in the future.

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“…Cu plays an important role in several physiological processes in plants, e.g., supporting disease resistance, photosynthesis, Frontiers in Sustainable Food Systems 05 frontiersin.org respiration, carbohydrate distribution, N and cell wall metabolism, and seed production (Ramos Marques et al, 2022). Cu is generally regarded as harmless, but at elevated contents, Cu toxicity in humans can result in abnormalities of kidney functions (Zhen et al, 2022).…”

Section: Evolution Of Microelements Content During Composting Of Orga...mentioning

confidence: 99%

Dynamics of nutrient elements and potentially toxic elements during composting with different organic wastes

Gao

Wang

Tan

et al. 2023

Front. Sustain. Food Syst.

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The presence and bioavailability of potentially toxic elements in the soil–plant system are major limitations to the application of compost to agricultural soils. In this study, the content changes of nutrients and potentially toxic elements in four organic wastes, namely household waste, sewage sludge, chicken manure, and cow/sheep manure, were analyzed during composting, and the quality of compost products was assessed in view of their impact on the environment. The objective of this study was to determine the evolution of 21 metal elements, including macroelements (Na, K, Ca, Mg), microelements (Fe, Mn, Zn, Cu, Mo, Ni), and potentially toxic elements (Ti, Al, Cr, Cd, Pb, Sb, Li, Co, Be, In, and Sn) during composting. Results showed that the contents of these elements varied considerably between different organic wastes. The contents of some elements (Na, K, Ca, Fe, Ti, Cu) increased substantially after composting due to organic matter decomposition and weight loss, whereas other elements (Mg, Co, Mo, Cr, In) decreased due to water leaching. The compost obtained was characterized by heavy metal contents not exceeding the permissible limits. Principal component analysis (PCA) was carried out to further analyze the relationships between the studied elements in different organic waste and compost products. The PCA results revealed that the macroelements (Na, K, Ca, Mg) contents negatively correlated with PC1, whereas microelements and potentially toxic elements positively correlated with PC1. From the results of the PCA, it was possible to classify the different compost products.

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Physiological and biochemical characterization of copper-toxicity tolerance mechanism in grass species native to Pampa Biome and Atlantic Forest for use in phytoremediation

Cited by 6 publications

References 29 publications

Phytoremediation of Cu‐contaminated vineyard soils in Brazil: A compendium of Brazilian pot studies

Phytoremediation of Cu‐contaminated vineyard soils in Brazil: A compendium of Brazilian pot studies

Advances in Plant–Soil Feedback Driven by Root Exudates in Forest Ecosystems

Dynamics of nutrient elements and potentially toxic elements during composting with different organic wastes

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