The great potential for phytoremediation of abandoned tailings pond using ectomycorrhizal Pinus sylvestris

Liu, Binhao; Wang, Shengxiao; Wang, Jie; Zhang, Xinzhe; Shen, Zhenguo; Shi, Liang; Chen, Yahua

doi:10.1016/j.scitotenv.2020.137475

Cited by 51 publications

(35 citation statements)

References 47 publications

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“…In ectomycorrhizal symbioses, host plants and fungi share a mutualistic rela-Forests 2021, 12, 332 2 of 18 tionship. Studies have reported that plants participating in ectomycorrhizal symbiosis have increased growth [9], higher endurance to biotic and abiotic stresses, including large potential for the phytoremediation of abandoned tailings pond [10], and improved tolerance to water-deficiency conditions [11]. However, owing to differences in the host plant and mycorrhizal fungal species [12], there are conflicting reports regarding the success of ectomycorrhizal symbiosis.…”

Section: Introductionmentioning

confidence: 99%

Role of Suillus placidus in Improving the Drought Tolerance of Masson Pine (Pinus massoniana Lamb.) Seedlings

Wang

Zhao

et al. 2021

Forests

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Masson pine is an important afforestation species in southern China, where seasonal drought is common. The present study focused on the effects of Suillus placidus, an ectomycorrhizal fungus, inoculation on the growth and physiological and biochemical performance of masson pine seedlings under four different watering treatments (well-watered, mild drought, moderate drought, and severe drought) to evaluate the symbiotic relationship between S. placidus and masson pine seedlings. Ectomycorrhizal-inoculated (ECM) and non-inoculated (NM) seedlings were grown in pots and maintained for 60 days using the weighing method. Results showed that seedlings' growth, dry weight, RWC, chlorophyll content, PSII efficiency, and photosynthesis decreased as drought stress intensified in both ECM and NM plants. This suggests that drought stress significantly limits the growth and photosynthetic performance of masson pine seedlings. Nevertheless, increased An/gs and proline contents in both NM and ECM prevented oxidative damage caused by drought stress. In addition, increased peroxidase (POD) activity is an essential defense mechanism of ECM seedling under drought stress. Compared with NM, ECM seedlings showed faster growth, higher RWC, and photosynthetic performance, and lower lipid peroxidation in cell membranes under drought stress, as indicated by higher POD activity and lower proline and malondialdehyde (MDA). Our experiment found that S. placidus inoculation can enhance the drought resistance of masson pine seedlings by increasing antioxidant enzyme activity, water use efficiency, and proline content, thereby enhancing growth under water-deficiency conditions. S. placidus can be used to cultivate high-quality seedlings and improve their survival in regions that experience seasonal droughts.

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Section: Introductionmentioning

confidence: 99%

Role of Suillus placidus in Improving the Drought Tolerance of Masson Pine (Pinus massoniana Lamb.) Seedlings

Wang

Zhao

et al. 2021

Forests

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“…The inoculation of Pinus sylvestris with the ECM fungi showed greater tolerance to heavy metal, enhanced survival rates, increased nutrient absorption and growth of plants. At the same time, the ECM fungi could survive in heavy metal tailings ponds [23]. Other researchers approved that after one month of planting, Pinus densiflora inoculated with Pisolithus sp.…”

Section: Author Copy • Author Copy • Author Copy • Author Copy • Author Copy • Author Copy • Author Copy • Author Copy • Author Copymentioning

confidence: 98%

“…Thirty species were identified, often in fairly humid places, they are associated with different families of host plants of great importance: Pinaceae, Myrtaceae, Fagaceae [20]. Many researchers confirmed that this symbiotic relationship improves the supply of water and nutrients for plants, enhances their resistance to stressful conditions [21,22] and reduces the available heavy metals in the soil, thereby decreasing their toxicity to host plants [23].…”

Section: Introductionmentioning

confidence: 99%

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

Ouatiki¹,

Tounsi²,

Amir³

et al. 2021

Pol. J. Environ. Stud.

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This study aims to evaluate the effectiveness of Pinus halepensis inoculated with the ectomycorrhizal fungi spores belonging to Scleroderma in phytoremediation of polymetallic soil. Tailings were collected in the Kettara polymetallic abandoned mine in southern Morocco and diluted with sand in the following proportions, 10%, 25%, 50% and 75%. The pots experiment was conducted for six months under greenhouse conditions. The results show that the studied plant reveals a great tolerance even at high proportion of contaminated soil (75%). The average length and biomass of the aerial and root parts of both inoculated and non-inoculated seedlings decreased with the increase of the proportion of the polluted soil. The inoculated seedlings have shown higher length and biomass than non-inoculated seedlings. The symbiotic association between Pinus halepensis and the fungus Scleroderma could be proposed as an ultimate solution for the phytoremediation of polluted soils.

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“…For inorganic pollutants such as trace metals or metalloïds, some endophytic fungi, especially AMF that can increase the uptake of arsenic or other metals such as zinc, copper or lead [39]. Nevertheless, it has been shown that the most effective fungi in terms of host plant adaptation are ectomycorrhizae and ericoid mycorrhizae [35,40,41]. Indeed, the great development of the extraracinar mycelium allows it to explore a large volume of soil but also to store more metals and transform them into a less toxic form thanks to a wide range of enzymatic activities.…”

Section: Using Fungi-assisted Phytoremediationmentioning

confidence: 99%

Phytoremediation: An Ecological Solution for Decontamination of Polluted Urban Soils

Jusselme¹,

Bousserrhıne²,

Abbad-Andaloussi³

et al. 2021

Soil Contamination - Threats and Sustainable Solutions

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Urbanization and industrialization are the main causes of increasing contaminated soils in cities all around the world. This leads to numerous abandoned lands, reduction in biodiversity, and thereby posing a serious health risk for urban inhabitants. The development of effective and ecological remediation approaches is necessary. Phytoremediation is well known as an ecological solution with good acceptation for remediation of contaminated soils. Since, urban soils are particularly characterized by their highly disturbed, heterogeneous and low fertility, the application of phytoremediation to rehabilitate contaminated soils in urban areas is until now very limited at the laboratory scale and even less at the field scale. In this context, we have to take into account all these parameters and precautions when it's application. The main objective of this chapter is to discuss how to take phytoremediation approaches from a proven technology to an accepted practice in an urban context. An overview of urban soil types is provided following phytoremediation's application for urban soils with the focus on inorganic and organic pollutants, to provide a frame of reference for the subsequent discussion on better utilization of phytoremediation. At last, we offer suggestion on how to gain greater acceptance for phytoremediation by urban inhabitants.

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The great potential for phytoremediation of abandoned tailings pond using ectomycorrhizal Pinus sylvestris

Cited by 51 publications

References 47 publications

Role of Suillus placidus in Improving the Drought Tolerance of Masson Pine (Pinus massoniana Lamb.) Seedlings

Role of Suillus placidus in Improving the Drought Tolerance of Masson Pine (Pinus massoniana Lamb.) Seedlings

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

Phytoremediation: An Ecological Solution for Decontamination of Polluted Urban Soils

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