Ectomycorrhizae and Their Importance in Forest Ecosystems

Futai, Kazuyoshi; Taniguchi, Takeshi; Kataoka, Ryota

doi:10.1007/978-1-4020-8770-7_11

Cited by 32 publications

(16 citation statements)

References 183 publications

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“…Liu et al [ 67 ] showed the effectiveness of mycorrhization on mineral nutrient uptake by plants. These beneficial effects of mycorrhization on plant nutrition vary considerably, according to the mineral element that is involved [ 69 ]. Nitrogen in the roots and shoots of mycorrhizal Aleppo pines was significantly higher than that of the non-mycorrhizal pines ( Table 3 ).…”

Section: Discussionmentioning

confidence: 99%

Effects of Ectomycorrhizal Fungi and Heavy Metals (Pb, Zn, and Cd) on Growth and Mineral Nutrition of Pinus halepensis Seedlings in North Africa

et al. 2020

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The pollution of soils by heavy metals resulting from mining activities is one of the major environmental problems in North Africa. Mycorrhizoremediation using mycorrhizal fungi and adapted plant species is emerging as one of the most innovative methods to remediate heavy metal pollution. This study aims to assess the growth and the nutritional status of ectomycorrhizal Pinus halepensis seedlings subjected to high concentrations of Pb, Zn, and Cd for possible integration in the restoration of heavy metals contaminated sites. Ectomycorrhizal and non-ectomycorrhizal P. halepensis seedlings were grown in uncontaminated (control) and contaminated soils for 12 months. Growth, mineral nutrition, and heavy metal content were assessed. Results showed that ectomycorrhizae significantly improved shoot and roots dry masses of P. halepensis seedlings, as well as nitrogen shoot content. The absorption of Pb, Zn, and Cd was much higher in the roots than in the shoots, and significantly more pronounced in ectomycorrhizal seedlings—especially for Zn and Cd. The presence of ectomycorrhizae significantly reduced the translocation factor of Zn and Cd and bioaccumulation factor of Pb and Cd, which enhanced the phytostabilizing potential of P. halepensis seedlings. These results support the use of ectomycorrhizal P. halepensis in the remediation of heavy metal contaminated sites.

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Section: Discussionmentioning

confidence: 99%

Effects of Ectomycorrhizal Fungi and Heavy Metals (Pb, Zn, and Cd) on Growth and Mineral Nutrition of Pinus halepensis Seedlings in North Africa

et al. 2020

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“…Ectomycorrhizal fungi colonize roots to form symbioses with many tree species, acquiring photosynthates from the hosts and in turn enhancing plant uptake of soil nitrogen and other nutrients (Smith and Read, 2008). This common symbiotic relationship in forest ecosystems could improve the survival and growth of host plants under biotic and abiotic disturbances, for example, pathogens, drought and acid rain (Hagerberg et al, 2003;Gehring et al, 2017;Zampieri et al, 2017); and this association has been successfully used in reforestation programmes by inoculating seedlings with suitable ectomycorrhizal fungi (Futai et al, 2008). Moreover, previous studies provided evidence that ectomycorrhizal fungi can mobilize the nitrogen present in organic materials (e.g., plant litters), and thus increase the mobility of soil nitrogen (Courty et al, 2010;Rineau et al, 2013).…”

Section: Introductionmentioning

confidence: 99%

Ectomycorrhizal fungi inoculation alleviates simulated acid rain effects on soil ammonia oxidizers and denitrifiers in Masson pine forest

Chen

et al. 2018

Environmental Microbiology

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Summary Acid rain can cause severe effects on soil biota and nutrient biogeochemical cycles in the forest ecosystem, but how plant‐symbiotic ectomycorrhizal fungi will modulate the effects remains unknown. Here, we conducted a full factorial field experiment in a Masson pine forest by simultaneously controlling the acidity of the simulated rain (pH 5.6 vs. pH 3.5) and the ectomycorrhizal fungi Pisolithus tinctorius inoculation (non‐inoculation vs. inoculation), to investigate the effects on ammonia oxidizers and denitrifiers. After 10 months, compared with the control (rain pH 5.6, and non‐inoculation), simulated acid rain (pH 3.5) reduced soil nutrient content, decreased archaeal amoA gene abundance and inhibited denitrification enzyme activity. Also, simulated acid rain altered the community compositions of all the examined functional genes (archaeal amoA, bacterial amoA, nirK, nirS and nosZ). However, inoculation with ectomycorrhizal fungi under acid rain stress recovered soil nutrient content, archaeal amoA gene abundance and denitrification enzyme activity to levels comparable to the control, suggesting that ectomycorrhizal fungi inoculation ameliorates simulated acid rain effects. Taken together, ectomycorrhizal fungi inoculation – potentially through improving soil substrate availability – could alleviate the deleterious effects of acid rain on nitrogen cycling microbes in forest soils.

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“…Concerning ECM effect, it improved the plant water status under stress conditions [ 42 ]. This ameliorative effect has been ascribed to the extended external mycelia of the root systems of ECM fungi, which reach soil pores inaccessible to the roots in water [ 5 , 43 , 44 ].…”

Section: Discussionmentioning

confidence: 99%

Effect of Pisolithus tinctorious on Physiological and Hormonal Traits in Cistus Plants to Water Deficit: Relationships among Water Status, Photosynthetic Activity and Plant Quality

Lorente

Zugasti

Sánchez-Blanco

et al. 2021

Plants

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Cistus species can form ectomycorrhizae and arbuscular mycorrhizal fungus that can bring benefits when plants are under water stress conditions. However, the application of some ectomycorrhizae on the water uptake under drought through physiological traits and hormonal regulation is less known. The experiment was performed during three months in a growth chamber with Cistus albidus plants in which the combined effect of the ectomycorrhiza Pisolithus tinctorious inoculation and two irrigation treatments (control and water-stressed plants) were applied. Irrigation absence caused significant decrease in aerial growth and tended to decrease soil water potential at the root surface, leading to a decrease in leaf water potential. Under these conditions, the abscisic acid and salicylic acid content increased while the precursor of ethylene decreased. Although the mycorrhization percentages were not high, the inoculation of P. tinctorious improved the water status and slightly cushioned the rise in leaf temperature of water-stressed plants. The ectomycorrhiza decreased the scopoletin values in leaves of plants subjected to deficit irrigation, indicating that inoculated plants had been able to synthesize defense mechanisms. Therefore, Pisolithus tinctorious alleviated some of the harmful effects of water scarcity in Cistus plants, being its use a sustainable option in gardening or restoration projects.

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Ectomycorrhizae and Their Importance in Forest Ecosystems

Cited by 32 publications

References 183 publications

Effects of Ectomycorrhizal Fungi and Heavy Metals (Pb, Zn, and Cd) on Growth and Mineral Nutrition of Pinus halepensis Seedlings in North Africa

Effects of Ectomycorrhizal Fungi and Heavy Metals (Pb, Zn, and Cd) on Growth and Mineral Nutrition of Pinus halepensis Seedlings in North Africa

Ectomycorrhizal fungi inoculation alleviates simulated acid rain effects on soil ammonia oxidizers and denitrifiers in Masson pine forest

Effect of Pisolithus tinctorious on Physiological and Hormonal Traits in Cistus Plants to Water Deficit: Relationships among Water Status, Photosynthetic Activity and Plant Quality

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