Effects of Pesticides on the Growth of Ectomycorrhizal Fungi and Ectomycorrhiza Formation

Marin, Miguel Angel Ramirez

doi:10.1007/978-3-642-15196-5_14

Cited by 5 publications

(4 citation statements)

References 81 publications

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“…50% reduction of each species) appears a safe conclusion based on the known physiological impact of the fungicide (e.g. Teste et al ., ; Amiri et al ., ; Marin, ). The polynomial regression ‘transfer function’ approach assisted in identifying the underlying factors responsible for generating the different seedling responses and, when used in conjunction with the fungicide treatment, provided strong evidence for mediation of local adaptation in hosts by fungal symbiont populations and nonfungal soil factors.…”

Section: Discussionmentioning

confidence: 99%

“…Half of the seedlings (576 = 12 seedlings 9 6 seed origins 9 8 soils) were treated biweekly with 400 ml of Topas 250E fungicide at a concentration of 0.5 g l À1 propiconazole, whereas the other half was left as an untreated control. Propiconazole is a systemic fungicide of the triazole chemical family that inhibits ergosterol synthesis, which is necessary for fungal cell wall formation, thus it has a broad effective range across the fungi (Marin, 2011). Growth of EMF (Manninen et al, 1998;Zambonelli & Iotti, 2001;Walker et al, 2010), arbuscular mycorrhizal fungi (Kjøller & Rosendahl, 2000) and fungal pathogens (Amiri et al, 2008) are all suppressed by this fungicide.…”

Section: Glasshouse Techniquesmentioning

confidence: 99%

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Local adaptation in migrated interior Douglas‐fir seedlings is mediated by ectomycorrhizas and other soil factors

Pickles

Twieg²,

O’Neill

et al. 2015

New Phytologist

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SummarySeparating edaphic impacts on tree distributions from those of climate and geography is notoriously difficult. Aboveground and belowground factors play important roles, and determining their relative contribution to tree success will greatly assist in refining predictive models and forestry strategies in a changing climate.In a common glasshouse, seedlings of interior Douglas-fir (Pseudotsuga menziesii var. glauca) from multiple populations were grown in multiple forest soils. Fungicide was applied to half of the seedlings to separate soil fungal and nonfungal impacts on seedling performance. Soils of varying geographic and climatic distance from seed origin were compared, using a transfer function approach.Seedling height and biomass were optimized following seed transfer into drier soils, whereas survival was optimized when elevation transfer was minimised. Fungicide application reduced ectomycorrhizal root colonization by c. 50%, with treated seedlings exhibiting greater survival but reduced biomass.Local adaptation of Douglas-fir populations to soils was mediated by soil fungi to some extent in 56% of soil origin by response variable combinations. Mediation by edaphic factors in general occurred in 81% of combinations. Soil biota, hitherto unaccounted for in climate models, interacts with biogeography to influence plant ranges in a changing climate.

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Section: Discussionmentioning

confidence: 99%

Section: Glasshouse Techniquesmentioning

confidence: 99%

Local adaptation in migrated interior Douglas‐fir seedlings is mediated by ectomycorrhizas and other soil factors

Pickles

Twieg²,

O’Neill

et al. 2015

New Phytologist

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“…Sequences of the genus Paxillus were predominant in the bulk soil (43.6%). This ectomycorrhizal fungal genus comprises several species reported as degraders of chlorobenzoic acids, atrazine and dichlorophenoxy-acetic acid (Dittmann et al, 2002;Marin, 2010). On the other hand, Cryptococcus sequences were the most abundant in the rhizosphere soil (63.7%).…”

Section: Microbial Community Compositionmentioning

confidence: 99%

Chemical and microbiological characterization of an aged PCB-contaminated soil

Stella

Covino

Burianová

et al. 2015

Science of The Total Environment

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“…Fagaceae as the dominants or co-dominants of temperate and mediterranean forests are one example of economically important forest tree families with obligate ECM symbiosis [26]. In ECM tree species, the formation of ectomycorrhizae is the natural state, and ECM symbiosis can be considered an extension of their root systems and a factor to take into account when assessing their quality [27]. ECM fungi are beneficial for plant growth because they can actively release nutrients from mineral particles and rock surfaces via weathering [28,29], mobilising nutrients such as N and P from structural and other organic polymers which are otherwise unavailable to plant roots [30].…”

Section: Introductionmentioning

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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Effects of Pesticides on the Growth of Ectomycorrhizal Fungi and Ectomycorrhiza Formation

Cited by 5 publications

References 81 publications

Local adaptation in migrated interior Douglas‐fir seedlings is mediated by ectomycorrhizas and other soil factors

Local adaptation in migrated interior Douglas‐fir seedlings is mediated by ectomycorrhizas and other soil factors

Chemical and microbiological characterization of an aged PCB-contaminated soil

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

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