Role of Mycorrhiza in Re-forestation at Heavy Metal-Contaminated Sites

Gherghel, Felicia; Krause, Katrin

doi:10.1007/978-3-642-23327-2_10

Cited by 4 publications

(1 citation statement)

References 87 publications

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“…In the presented study, ECM fungi found on oak roots, such as S. brunnea, T. terrestris, L. proxima and P. involutus were identified as typical mycobionts of young oaks in early succession [76]. The pyrophilous ascomycete S. brunnea is a frequent companion in forest nurseries and considered a contaminant in the production of tree seedlings mycorrhized with edible truffle species [77].…”

Section: Mycorrhizal Colonizationmentioning

confidence: 99%

The Effect of Silver and Copper Nanoparticles on the Condition of English Oak (Quercus robur L.) Seedlings in a Container Nursery Experiment

Olchowik

Bzdyk

Studnicki

et al. 2017

Forests

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Some studies indicate that metal nanoparticles can be used in plant cultivation as fungicides and growth stimulators. The aim of this study was to evaluate the effect of silver (AgNPs) and copper nanoparticles (CuNPs) on the growth parameters, on the extent of leaves infected by powdery mildew and on spontaneous ectomycorrhizal colonization of English oak (Quercus robur L.) seedlings growing in containers. Nanoparticles were applied to foliage four times during one vegetation season, at four concentrations: 0, 5, 25 and 50 ppm. The adsorption of NPs to leaves was observed by microscopical imaging (TEM). The tested concentrations of AgNPs and CuNPs did not have any significant effect on the growth parameters of the oak seedlings. TEM results showed disturbances in the shape of plastids, plastoglobules and the starch content of oak leaves treated with 50 ppm Cu-and AgNPs, while no changes in the ultrastructure of stems and roots of oak plants treated with NPs were observed. No significant difference in powdery mildew disease intensity was observed after NP foliar app lication. Four ectomycorrhizal taxa were detected on oak roots (Sphaerosporella brunnea, Thelephora terrestris, Paxillus involutus and Laccaria proxima). Oak seedlings treated (foliar) with CuNPs and AgNPs at 25 ppm were characterised by the highest degree of mycorrhization (respectively, 37.1% and 37.5%) among all treatments including the control treatment. None of the tested NPs manifested phytotoxicity in the examined Q. robur seedlings under container nursery conditions.

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Section: Mycorrhizal Colonizationmentioning

confidence: 99%

The Effect of Silver and Copper Nanoparticles on the Condition of English Oak (Quercus robur L.) Seedlings in a Container Nursery Experiment

Olchowik

Bzdyk

Studnicki

et al. 2017

Forests

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11 Ectomycorrhiza-Specific Gene Expression

Kothe

Schlunk

Senftleben

et al. 2013

Agricultural Applications

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A transporter for abiotic stress and plant metabolite resistance in the ectomycorrhizal fungus Tricholoma vaccinum

Schlunk

Krause

Wirth

et al. 2015

Environ Sci Pollut Res

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Fungi exposed to toxic substances including heavy metals, xenobiotics, or secondary metabolites formed by co-occurring plants or other microorganisms require a detoxification system provided by exporters of several classes of transmembrane proteins. In case of mycorrhiza, plant metabolites need to be exported at the plant interface, while the extraradical hyphae may prevent heavy metal uptake, thus acting as a biofilter to the host plant at high environmental concentrations. One major family of such transporter proteins is the multidrug and toxic compound extrusion (MATE) class, a member of which, Mte1, was studied in the ectomycorrhizal fungus Tricholoma vaccinum. Phylogenetic analyses placed the protein in a subgroup of basidiomycete MATE sequences. The gene mte1 was found to be induced during symbiotic interaction. It mediated detoxification of xenobiotics and metal ions such as Cu, Li, Al, and Ni, as well as secondary plant metabolites if heterologously expressed in Saccharomyces cerevisiae.

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Role of Mycorrhiza in Re-forestation at Heavy Metal-Contaminated Sites

Cited by 4 publications

References 87 publications

The Effect of Silver and Copper Nanoparticles on the Condition of English Oak (Quercus robur L.) Seedlings in a Container Nursery Experiment

The Effect of Silver and Copper Nanoparticles on the Condition of English Oak (Quercus robur L.) Seedlings in a Container Nursery Experiment

11 Ectomycorrhiza-Specific Gene Expression

A transporter for abiotic stress and plant metabolite resistance in the ectomycorrhizal fungus Tricholoma vaccinum

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