Ectomycorrhizal impact on Zn accumulation of Populus tremula L. grown in metalliferous soil with increasing levels of Zn concentration

Langer, Ingrid; Santner, Jakob; Krpata, Doris; Fitz, Walter J.; Wenzel, Walter W.; Schweiger, Peter

doi:10.1007/s11104-011-1098-y

Cited by 31 publications

(16 citation statements)

References 54 publications

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“…Increased Cd accumulation in ectomycorrhizal fungi-colonized plants has been found in previous studies (Sell et al 2005;Baum et al 2006;Krpata et al 2008Krpata et al , 2009Sousa et al 2012). Induction of Cd accumulation by EMs in these plants has been mainly ascribed to (1) fungal exudates, for example oxalic acid, that enhance Cd bioavailability in the rhizosphere, (2) modified Cd 2+ mobility in the root apoplast due to the Hartig net, and (3) changes in hormonal balance or metabolites of host plants Sell et al 2005;Colpaert et al 2011;Osobova et al 2011;Langer et al 2012). The present data show that active PM H + -ATPases-driven Cd 2+ uptake is a major factor for increased Cd accumulation in mycorrhizal plants.…”

Section: Ems Improve Poplar Growth Nutrient and Carbohydrate Status mentioning

confidence: 64%

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Ectomycorrhizas with Paxillus involutus enhance cadmium uptake and tolerance in Populus × canescens

Ma¹,

et al. 2013

Plant Cell & Environment

128

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ABSTRACTuptake, transport and detoxification processes were increased in EMs compared to non-mycorrhizal roots. Higher CO2 assimilation, improved nutrient and carbohydrate status, and alleviated oxidative stress were found in mycorrhizal compared to non-mycorrhizal poplars despite higher Cd 2+ accumulation. These results indicate that mycorrhizas increase Cd 2+ uptake, probably by an enlarged root volume and overexpression of genes involved in Cd 2+ uptake and transport, and concurrently enhance Po. × canescens Cd tolerance by increased detoxification, improved nutrient and carbohydrate status and defence preparedness.

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Section: Ems Improve Poplar Growth Nutrient and Carbohydrate Status mentioning

confidence: 64%

“…; Langer et al . ). The present data show that active PM H + ‐ATPases‐driven Cd 2+ uptake is a major factor for increased Cd accumulation in mycorrhizal plants.…”

Section: Discussionmentioning

confidence: 97%

Ectomycorrhizas with Paxillus involutus enhance cadmium uptake and tolerance in Populus × canescens

Ma¹,

et al. 2013

Plant Cell & Environment

128

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“…However, the use of such mobilizing agents is generally not recommended due to the associated potential risks of groundwater contamination as a result of leaching of TEs. Other practices such as inoculation with mycorrhizal fungi and plant-associated bacteria (rhizobacteria and endophytes) have been reported to improve plant growth and/or modify soil metal mobility and their uptake/translocation by woody crops (Sell et al 2005;Baum et al 2006;Kuffner et al 2008;Langer et al 2012a). Pioneer studies already showed the positive influence of mycorrhizae on plant growth in TE-contaminated soils and mined lands.…”

Section: Phytoextraction Options Based On Srcmentioning

confidence: 99%

Agronomic Practices for Improving Gentle Remediation of Trace Element-Contaminated Soils

Kidd

Mench

Álvarez-López

et al. 2015

International Journal of Phytoremediation

211

104

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The last few decades have seen the rise of Gentle soil Remediation Options (GRO), which notably include in situ contaminant stabilization ("inactivation") and plant-based (generally termed "phytoremediation") options. For trace element (TE)-contaminated sites, GRO aim to either decrease their labile pool and/or total content in the soil, thereby reducing related pollutant linkages. Much research has been dedicated to the screening and selection of TE-tolerant plant species and genotypes for application in GRO. However, the number of field trials demonstrating successful GRO remains well below the number of studies carried out at a greenhouse level. The move from greenhouse to field conditions requires incorporating agronomical knowledge into the remediation process and the ecological restoration of ecosystem services. This review summarizes agronomic practices against their demonstrated or potential positive effect on GRO performance, including plant selection, soil management practices, crop rotation, short rotation coppice, intercropping/row cropping, planting methods and plant densities, harvest and fertilization management, pest and weed control and irrigation management. Potentially negative effects of GRO, e.g., the introduction of potentially invasive species, are also discussed. Lessons learnt from long-term European field case sites are given for aiding the choice of appropriate management practices and plant species.

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“…Poplars are among the superior hardwood trees used as a source of wood biomass for bioenergy production, plywood confection, phytoremediation and, owing to their superior biomass productivity, they have been used for short-rotation coppice cultures [1]. Genetic variability in terms of tree growth, agronomic traits (e.g., plant height, time to maturity), and timber quality is found within the Populus genus, particularly among the interspecific hybrids [2,3].…”

Section: Introductionmentioning

confidence: 99%

Former Land Use and Host Genotype Influence the Mycorrhizal Colonization of Poplar Roots

Gherghel

Behringer

Haubrich

et al. 2014

Forests

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Abstract:The present paper analyses the community structure of ectomycorrhiza (ECM) and arbuscular mycorrhiza (AM) fungi associated with seven different poplar clone types growing in a patch system on soil from four different former land use types, originating from spruce forest, poplar stand, grassland and cornfield. We determined the extent to which ECM and AM play a role on the studied factors (genotype, former land use type and host growth). The diversity of ECM and AM fungal communities was estimated by morphological and molecular analyses of the 18S and ITS of the rDNA genes. Fifteen ECM fungal taxa and four AM groups were distinguished in the roots of the poplars grown for 18 months on soil originating from the respective land use types. The poplar clones showed significantly different rates of shoot length and AM colonization, especially concerning the occurrence of Glomus intraradices and Scutellospora sp. Populus deltoides had significantly higher Scutellospora sp. abundance. Although ECM abundance and OPEN ACCESSForests 2014, 5 2981 diversity was high, no significant differences between the different land use types was found. However, some ECM fungi like Paxillus involutus, Laccaria proxima and Laccaria tortilis showed significant preferences for specific land use types. Our findings suggest that both factors, former land use type and poplar genotype, are important determinants of mycorrhizal colonization of the host plants.

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Ectomycorrhizal impact on Zn accumulation of Populus tremula L. grown in metalliferous soil with increasing levels of Zn concentration

Cited by 31 publications

References 54 publications

Ectomycorrhizas with Paxillus involutus enhance cadmium uptake and tolerance in Populus × canescens

Ectomycorrhizas with Paxillus involutus enhance cadmium uptake and tolerance in Populus × canescens

Agronomic Practices for Improving Gentle Remediation of Trace Element-Contaminated Soils

Former Land Use and Host Genotype Influence the Mycorrhizal Colonization of Poplar Roots

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