Lead uptake by the symbiotic Daucus carota L.–Glomus intraradices system and its effect on the morphology of extra- and intraradical fungal microstructures

Alvarado-López, Carlos Juan; Dasgupta‐Schubert, N.; Ambriz, Jorge Enrique; Arteaga‐Velázquez, J. C.; Villegas, Javier

doi:10.1007/s11356-018-3569-7

Cited by 9 publications

(3 citation statements)

References 43 publications

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“…Colonization by AMF was positively related to Pb uptake in our study with both total colonization intensity and proportion arbuscules leading to more Pb uptake into shoots, whereas proportion arbuscules (but not total colonization) were positively related to Pb uptake into roots. Contrary to some studies that show a protective effect of AMF colonization for plant hosts (Alvarado‐López et al., 2019; Riaz et al., 2021), AMFs in this case were contributing to greater plant Pb. We suggest that this could be due to one or more of the following factors: (1) Greater AMF colonization effectively extends the root absorptive area and, as a result, mines a greater amount of nutrient and toxic elements from the surrounding soil.…”

Section: Discussioncontrasting

confidence: 99%

“…Our finding of the relationship between vesicle storage structures and less As uptake into shoots suggests that this could be one mechanism by which AMF improve both plant health and crop safety. Although there is some evidence of other toxic elements such as Pb accumulating in these fungal storage structures (Alvarado‐López et al., 2019; Riaz et al., 2021), to our knowledge, this interaction has not yet been reported for As. It is important to note that the soils in our study had As levels that were elevated but not nearly as high as are often used in other experiments (He & Lilleksov, 2014), which could influence this relationship.…”

Section: Discussionmentioning

confidence: 71%

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Mycorrhizal fungi and soil factors influence toxic element uptake in urban grown produce

Bowdish

Duran

Richardson

et al. 2023

Urban Agric & Regnl Food Sys

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Despite the need for more urban‐grown produce, toxic elements contaminated soils continue to be a major barrier to food production and food sovereignty in urban areas and a continued health and environmental justice issue. Although the US EPA provides recommendations regarding levels of soil lead that are safe for gardening, soil abiotic and biotic factors as well as plant identity play a major role in determining the actual crop uptake of toxic elements. This study evaluated the role of crop identity, harvested tissue, and soil factors, including arbuscular mycorrhizal (AM) fungi on crop uptake of lead (Pb) and arsenic (As) in an urban community farm. Crop species varied in their Pb and As accumulations, both by crop identity and also by plant tissue. Crop uptake of lead increased with lower soil pH (range 5.3–6.9) and lower soil P (range 365–1771 mg kg−1 total P). For mycorrhizal crops, greater intensity of AM fungal colonization and the prevalence of arbuscules were associated with greater lead uptake, but the presence of more storage vesicles was related to less As uptake into leaves. These findings can help inform crop selection and soil management to improve soil stabilization of toxic elements in moderately contaminated soils while serving as a platform for community conversations about the importance of soil management in healthy urban food production.

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Section: Discussioncontrasting

confidence: 99%

Section: Discussionmentioning

confidence: 71%

Mycorrhizal fungi and soil factors influence toxic element uptake in urban grown produce

Bowdish

Duran

Richardson

et al. 2023

Urban Agric & Regnl Food Sys

View full text Add to dashboard Cite

show abstract

“…HMs are transported through extraradical mycelium, and in mycorrhizal plants, metal ions mainly accumulate in the fungal structures within the root's cortical cells [89]. Alvarado-López et al ( 2019) discovered that Pb treatment was capable of inducing AMF colonization within the roots of carrots (Daucus carota), resulting in a greater percentage increase in the number of vesicles and mycelium [90]. The adsorption and filtration effects within intraradical mycelium can limit the movement of HM ions into plant roots' cytoplasm [91].…”

Section: Pollutant Retention Inside Fungal Structurementioning

confidence: 99%

Sustainable Remediation of Soil and Water Utilizing Arbuscular Mycorrhizal Fungi: A Review

Zhang,

Wang,

et al. 2024

Microorganisms

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Phytoremediation is recognized as an environmentally friendly technique. However, the low biomass production, high time consumption, and exposure to combined toxic stress from contaminated media weaken the potential of phytoremediation. As a class of plant-beneficial microorganisms, arbuscular mycorrhizal fungi (AMF) can promote plant nutrient uptake, improve plant habitats, and regulate abiotic stresses, and the utilization of AMF to enhance phytoremediation is considered to be an effective way to enhance the remediation efficiency. In this paper, we searched 520 papers published during the period 2000–2023 on the topic of AMF-assisted phytoremediation from the Web of Science core collection database. We analyzed the author co-authorship, country, and keyword co-occurrence clustering by VOSviewer. We summarized the advances in research and proposed prospective studies on AMF-assisted phytoremediation. The bibliometric analyses showed that heavy metal, soil, stress tolerance, and growth promotion were the research hotspots. AMF–plant symbiosis has been used in water and soil in different scenarios for the remediation of heavy metal pollution and organic pollution, among others. The potential mechanisms of pollutant removal in which AMF are directly involved through hyphal exudate binding and stabilization, accumulation in their structures, and nutrient exchange with the host plant are highlighted. In addition, the tolerance strategies of AMF through influencing the subcellular distribution of contaminants as well as chemical form shifts, activation of plant defenses, and induction of differential gene expression in plants are presented. We proposed that future research should screen anaerobic-tolerant AMF strains, examine bacterial interactions with AMF, and utilize AMF for combined pollutant removal to accelerate practical applications.

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Combined effect of putrescine and mycorrhizal fungi in phytoremediation of Lallemantia iberica in Pb-contaminated soils

Ansari

Andalibi

Zarei

et al. 2021

Environ Sci Pollut Res

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Lead uptake by the symbiotic Daucus carota L.–Glomus intraradices system and its effect on the morphology of extra- and intraradical fungal microstructures

Cited by 9 publications

References 43 publications

Mycorrhizal fungi and soil factors influence toxic element uptake in urban grown produce

Mycorrhizal fungi and soil factors influence toxic element uptake in urban grown produce

Sustainable Remediation of Soil and Water Utilizing Arbuscular Mycorrhizal Fungi: A Review

Combined effect of putrescine and mycorrhizal fungi in phytoremediation of Lallemantia iberica in Pb-contaminated soils

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