The role of arbuscular mycorrhiza in mercury and mineral nutrient uptake in maize

Debeljak, Marta; Elteren, Johannes T. van; Špruk, Ana; Izmer, Andrei; Vanhaecke, Frank; Vogel‐Mikuš, Katarina

doi:10.1016/j.chemosphere.2018.08.147

Cited by 49 publications

(18 citation statements)

References 33 publications

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“…X-ray spectroscopic techniques have been employed to investigate Hg uptake and its 2-dimensional distribution in plants [25], fish [26], and whale brains [27]. LA-ICP-MS mapping experiments focusing on Hg have been reported as well, e.g., analyzing thin sections of plants [28,29], fruit flies [30], glass eels [31], rodent tissues [32], eagle liver tissue [33], and human soft tissues [34]. In most cases, these experiments were carried out on samples with artificially elevated Hg concentrations, e.g., by adding Hg to the animal feed or plant substrate.…”

Section: Introductionmentioning

confidence: 99%

Quantitative mapping of mercury and selenium in mushroom fruit bodies with laser ablation–inductively coupled plasma-mass spectrometry

et al. 2022

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This work describes the development of a novel method for quantitative mapping of Hg and Se in mushroom fruit body tissues with laser ablation coupled to inductively coupled plasma-mass spectrometry (LA-ICP-MS). Different parameters of the protocol for preparation of the standards used for quantification via external calibration were assessed, e.g., the dissolution temperature of gelatin standards and the addition of chitosan and l-cysteine as additives to the gelatin-based calibration droplets to better match the sample matrix. While chitosan was not suited for this purpose, the presence of l-cysteine considerably improved the figures of merit of the calibration, leading to limits of detection of 0.006 and 0.3 µg g−1 for Hg and Se, respectively, at a pixel size of 20 × 20 µm. Further, an in-house reference material, ideally suited for the validation of the method for application to mushroom samples, was successfully prepared from a paste of Boletus edulis. The newly developed method was used to investigate the distribution of Hg and Se in tissue sections of five porcini mushroom individuals of three different species (Boletus edulis, Boletus aereus, and Boletus pinophilus) and one sample of a parasol mushroom (Macrolepiota procera). For one sample, additional areas were ablated at higher spatial resolution, with a laser spot size down to 5 µm, which allows a detailed investigation of the spatial distribution of Hg and Se in mushrooms. Graphical abstract

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Section: Introductionmentioning

confidence: 99%

Quantitative mapping of mercury and selenium in mushroom fruit bodies with laser ablation–inductively coupled plasma-mass spectrometry

et al. 2022

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“…In contrast, AMF from a Hg-contaminated site was less effective than a commercial inoculum in terms of promoting plant biomass and photosynthetic pigment content when associated with Zea mays, in soil containing 50 mg Hg 2+ kg −1 dw [173]. Its presence increased the metal's mobility both from soil to roots and within the plant, and impaired mineral uptake [173]. It was concluded that the inoculum native to the contaminated site might not have been compatible with the plant, and that although it was adapted to Hg-contaminated soil, its negative effects on plant growth exceeded any beneficial effects it had on Hg uptake.…”

Section: Fungimentioning

confidence: 87%

“…It was hypothesized that fungal metallothioneins (MTs) or PCs could have bound the metal and transferred it to the roots, as the tetrathiol Hg complexation detected was correlated with the fungus of 37 samples [44]. In contrast, AMF from a Hg-contaminated site was less effective than a commercial inoculum in terms of promoting plant biomass and photosynthetic pigment content when associated with Zea mays, in soil containing 50 mg Hg 2+ kg −1 dw [173]. Its presence increased the metal's mobility both from soil to roots and within the plant, and impaired mineral uptake [173].…”

Section: Fungimentioning

confidence: 99%

Phytoremediation and Microorganisms-Assisted Phytoremediation of Mercury-Contaminated Soils: Challenges and Perspectives

Tiodar

Văcar

Podar

2021

IJERPH

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Mercury (Hg) pollution is a global threat to human and environmental health because of its toxicity, mobility and long-term persistence. Although costly engineering-based technologies can be used to treat heavily Hg-contaminated areas, they are not suitable for decontaminating agricultural or extensively-polluted soils. Emerging phyto- and bioremediation strategies for decontaminating Hg-polluted soils generally involve low investment, simple operation, and in situ application, and they are less destructive for the ecosystem. Current understanding of the uptake, translocation and sequestration of Hg in plants is reviewed to highlight new avenues for exploration in phytoremediation research, and different phytoremediation strategies (phytostabilization, phytoextraction and phytovolatilization) are discussed. Research aimed at identifying suitable plant species and associated-microorganisms for use in phytoremediation of Hg-contaminated soils is also surveyed. Investigation into the potential use of transgenic plants in Hg-phytoremediation is described. Recent research on exploiting the beneficial interactions between plants and microorganisms (bacteria and fungi) that are Hg-resistant and secrete plant growth promoting compounds is reviewed. We highlight areas where more research is required into the effective use of phytoremediation on Hg-contaminated sites, and conclude that the approaches it offers provide considerable potential for the future.

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“…Claroideoglomus claroideum increased growth in plant [114] Mercury toxicity Zea mays Glomus sp., fungi from Glomeromycota Enhanced biomass of plant and increased content of mercury in central cylinder of AMF colonized plants [115] Cu toxicity…”

Section: Helianthus Annuus Lmentioning

confidence: 99%

Arbuscular Mycorrhizal Fungi Symbiosis to Enhance Plant–Soil Interaction

et al. 2022

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Arbuscular mycorrhizal fungi (AMF) form a symbiotic relationship with plants; a symbiotic relationship is one in which both partners benefit from each other. Fungi benefit plants by improving uptake of water and nutrients, especially phosphorous, while plants provide 10–20% of their photosynthates to fungus. AMF tend to make associations with 85% of plant families and play a significant role in the sustainability of an ecosystem. Plants’ growth and productivity are negatively affected by various biotic and abiotic stresses. AMF proved to enhance plants’ tolerance against various stresses, such as drought, salinity, high temperature, and heavy metals. There are some obstacles impeding the beneficial formation of AMF communities, such as heavy tillage practices, high fertilizer rates, unchecked pesticide application, and monocultures. Keeping in view the stress-extenuation potential of AMF, the present review sheds light on their role in reducing erosion, nutrient leaching, and tolerance to abiotic stresses. In addition, recent advances in commercial production of AMF are discussed.

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The role of arbuscular mycorrhiza in mercury and mineral nutrient uptake in maize

Cited by 49 publications

References 33 publications

Quantitative mapping of mercury and selenium in mushroom fruit bodies with laser ablation–inductively coupled plasma-mass spectrometry

Quantitative mapping of mercury and selenium in mushroom fruit bodies with laser ablation–inductively coupled plasma-mass spectrometry

Phytoremediation and Microorganisms-Assisted Phytoremediation of Mercury-Contaminated Soils: Challenges and Perspectives

Arbuscular Mycorrhizal Fungi Symbiosis to Enhance Plant–Soil Interaction

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