Inoculation of Pinus halepensis
with the Ectomycorrhizal Fungi Scleroderma
Helps in Phytoremediation of Soil Polymetallic
Pollution

Ouatiki, Elmehdi; Tounsi, Abdessamad; Amir, Soumia; Midhat, Laila; Radi, Mohamed; Ouahmane, Lahcen

doi:10.15244/pjoes/131979

Cited by 4 publications

(4 citation statements)

References 31 publications

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“…However, the presence of Pb in soil may interfere with the symbiosis establishment, hindering the plant-fungus recognition or slowing down the root colonization. The negative effect of Pb and other heavy metals on the abundance of ectomycorrhizas was already demonstrated by different authors (Bojarczuk & Kieliszewska-Rokicka, 2010;Chappelka et al, 1991;Ouatiki et al, 2021).…”

Section: Discussionmentioning

confidence: 70%

The bianchetto truffle (Tuber borchii) a lead‐resistant ectomycorrhizal fungus increases Quercus cerris phytoremediation potential

Sisti

Zeppa

Amicucci

et al. 2022

Environmental Microbiology

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Tuber borchii is a European edible truffle which forms ectomycorrhizas with several soft-and hardwood plants. In this article, the effects of high level of Pb on the in vitro growth of five T. borchii strains and the molecular mechanisms involved in Pb tolerance were studied. Moreover, the effects of the Pb treatment on T. borchii ectomycorrhizas and on the growth, element uptake and distribution in different organs of Quercus cerris seedlings were investigated. The results showed an extraordinary tolerance of T. borchii mycelium to Pb: all the tested strains were able to grow at Pb concentration over 4000 mg L À1 . The mechanisms of tolerance seem related to Pb sequestration in the vacuole and its immobilization as crystal of Pb oxalate outside the hyphae rather than detoxification processes, considering the low expression of glutaredoxin and thioredoxin genes. T. borchii-Q. cerris mycorrhizas tolerate a soil concentration of Pb from 1869 to 4030 mg kg À1 although, at these Pb concentrations, T. borchii showed a reduced ability to colonize roots. T. borchii mycorrhization increased the uptake of Pb by Q. cerris. Mycorrhization and Pb treatment also significantly influenced the uptake and translocation in the plant of other elements.

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Section: Discussionmentioning

confidence: 70%

The bianchetto truffle (Tuber borchii) a lead‐resistant ectomycorrhizal fungus increases Quercus cerris phytoremediation potential

Sisti

Zeppa

Amicucci

et al. 2022

Environmental Microbiology

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“…Zn, Cd, Pb) in P. halepenisi seedlings when grown under greenhouse conditions in a mixture of polymetallic mine tailings and sand (Ouatiki et al 2022). In a related study, (Ouatiki et al 2021) reported that Scleroderma-containing inoculants also resulted in an increase in the biomass of inoculated P. halepensis seedlings.…”

Section: Discussionmentioning

confidence: 96%

“…For example, a greenhouse study by Cumming and Weinstein (1990) indicated that the aluminum tolerance of the Pitch pine can be influenced by its symbiotic association with the ectomycorrhizal fungus Pisolithus tinctorus . Greenhouse studies have also shown that certain ECMF species can ameliorate the toxic effects of zinc (Adriaensen et al 2006) and cadmium on Pinus sylvestris (Krznaric et al 2009) and P. halepensis (Ouatiki et al 2021; Ouatiki et al 2022). Field studies of pre‐inoculated Jack pine ( P. banksiana ) seedlings have shown that the persistence of ECMF species can be influenced by multiple factors, including the physicochemical characteristics of the soils in which they reside (McAfee & Fortin 1986).…”

Section: Introductionmentioning

confidence: 99%

Ectomycorrhizal diversity on the roots of Pitch pine (Pinus rigidaMill.) saplings as influenced by remediation and soil metal content

Eardly

Cloutier

Chung

et al. 2022

Restoration Ecology

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From 1913 to 1980, two zinc smelters in Palmerton, Pennsylvania, emitted large quantities of atmospheric pollutants nearly eliminating forests along a ridge above the town. In 2008, a remediation treatment was applied to the land above one of the smelters that included the planting of several locally adapted plant species. It also included mineral fertilization and mycorrhizal inoculation. One of the species, the Pitch pine (Pinus rigida, Mill.), is a native tree that is both tolerant of metalliferous soils and obligatorily ectomycorrhizal. This report summarizes the results of two observational studies conducted 5 years after the remediation treatment. The first study's objective was to compare ectomycorrhizal communities on treated Pitch pine saplings, with communities on naturally regenerating saplings in an adjacent non-remediated area. The second study's objective was to determine if the composition of the fungal communities on root tips of naturally regenerating Pitch pine saplings differed with distance from the smelters. Fungal community compositions were determined using internal transcribed spacer rRNA sequences. Comparisons of sequences from the remediated and non-remediated sites revealed that communities at the remediated sites had lower taxonomic diversity and were dominated by members of a genus in the remediation inoculant. The results of the smelter-proximity study indicated that although fungal diversity did not differ markedly with distance from the smelters, the relative abundances of some taxa were greater on saplings growing directly above the smelters, where the soils contained highest concentrations of zinc and cadmium.

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“…Phytoremediation innovations are available for various environments and types of contaminants [17][18][19][20][21][22][23][24][25][26][27][28][29][30][31]. However, the innovation of the present paper was the screening of native plant species for their potential and suitability for remediation of the study area.…”

Section: Introductionmentioning

confidence: 99%

Phytoremediation Potential of Native Hyperaccumulator Plants Growing on Heavy Metal-Contaminated Soil of Khatunabad Copper Smelter and Refinery, Iran

Siyar

Ardejani

Norouzi

et al. 2022

Water

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The characterization of prospective plants is one of the critical issues in the efficiency and success of the phytoremediation process. Due to adaption and tolerance to different environmental stresses, native plant species have priority in this method. This study examined fifty plants of five species, namely Launaea acanthodes, Artemisia sp., Cousinia congesta, Peganum harmala, and Stipa sp., growing near a smelter and refinery in Iran to identify potential species for phytoextraction and phytostabilization. Therefore, Pb, Ni, Mn, Mo, S, and Cu concentrations in sampled plants and soils were analyzed. Three different pollution indices, namely metal accumulation index (MAI), translocation factor (TF), and bioconcentration factor (BCF) were used for evaluating the metal concentrations in roots and shoots of each plant species. The results indicated that Artemisia sp., with values of 3.21, 1.09, and 1.14 for MAI, BCF, and TF, respectively, is appropriate for phytoextraction in the study area. Plants such as Launaea acanthodes and Cousinia congesta with high BCF and low TF values showed the potential for phytostabilization. Investigating the indices for different elements demonstrated that Launaea acanthodes had a BCF value greater than 1 and a TF value less than 1; therefore, this plant could be used in the phytoremediation of arsenic through the phytostabilization technique. Furthermore, copper has very low bioavailability in these plant species. In addition, these native plant species were highly capable of accumulating sulfur from the soil because the BCF and TF indices for all inspected species were higher than 1; for Launaea acanthodes, the relevant TF value was about 10. The proposed native plant could be applied in practical applications of phytoremediation for soil remediation of contaminated sites around the metal factories and mines in southeastern Iran.

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Inoculation of Pinus halepensis with the Ectomycorrhizal Fungi Scleroderma Helps in Phytoremediation of Soil Polymetallic Pollution

Cited by 4 publications

References 31 publications

The bianchetto truffle (Tuber borchii) a lead‐resistant ectomycorrhizal fungus increases Quercus cerris phytoremediation potential

The bianchetto truffle (Tuber borchii) a lead‐resistant ectomycorrhizal fungus increases Quercus cerris phytoremediation potential

Ectomycorrhizal diversity on the roots of Pitch pine (Pinus rigidaMill.) saplings as influenced by remediation and soil metal content

Phytoremediation Potential of Native Hyperaccumulator Plants Growing on Heavy Metal-Contaminated Soil of Khatunabad Copper Smelter and Refinery, Iran

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