Seasonal differences in tree species' influence on soil microbial communities

Thoms, Carolin; Gleixner, Gerd

doi:10.1016/j.soilbio.2013.05.018

Cited by 114 publications

(58 citation statements)

References 60 publications

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“…A4 in the Supplementary Material) in a cluster is more important for the microbial community structure as reflected in the PLFA amounts and composition than tree diversity per se. This corroborates the assumption of Thoms et al (2010Thoms et al ( , 2013 that their observed trend of increasing PLFA amounts with increasing tree diversity and associated shifts in PLFA composition (especially in early-summer samples) was caused by decreasing beech abundance rather than by increasing tree diversity. However, the results of Thoms et al (2010) also suggest that the observed species-specific effects were partly related to specific edaphic conditions in the plots, which demonstrate the necessity to disentangle the influence of biotic and abiotic environmental factors on the PLFA composition in forest soils.…”

Section: Tree Identity Effects On the Microbial Communitysupporting

confidence: 88%

“…However and in accordance to Thoms and Gleixner (2013), the PLFA 16:1u5 often used as a biomarker for arbuscular mycorrhizal (AM) fungi was highly correlated to the abundance of lime trees, even though the roots of this genus show predominantly ectomycorrhizal colonization (Lang et al, 2011). Also in the PCA and RDA, the PLFA 16:1u5 was only weakly correlated with clusters containing arbuscular mycorrhizal tree species (data not shown).…”

Section: Tree Identity Effects On the Microbial Communitymentioning

confidence: 74%

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Effects of tree identity dominate over tree diversity on the soil microbial community structure

Scheibe

Steffens

Seven

et al. 2015

Soil Biology and Biochemistry

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110

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Section: Tree Identity Effects On the Microbial Communitysupporting

confidence: 88%

Section: Tree Identity Effects On the Microbial Communitymentioning

confidence: 74%

Effects of tree identity dominate over tree diversity on the soil microbial community structure

Scheibe

Steffens

Seven

et al. 2015

Soil Biology and Biochemistry

Self Cite

110

View full text Add to dashboard Cite

“…Therefore, they interact with their environment, e.g., by moving water and nutrients, on a larger spatial scale compared to bacteria (Coleman and Crossley, 1996; van der Heijden et al, 2008; Trevors, 2010), which might result in a more homogeneous distribution of fungal communities in soil. The life cycle of both bacteria and fungi inhabiting forest soils can be strongly affected by seasons through changes in abiotic and biotic factors (Thoms and Gleixner, 2013). …”

Section: Introductionmentioning

confidence: 99%

Fine Spatial Scale Variation of Soil Microbial Communities under European Beech and Norway Spruce

et al. 2016

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The complex interactions between trees and soil microbes in forests as well as their inherent seasonal and spatial variations are poorly understood. In this study, we analyzed the effects of major European tree species (Fagus sylvatica L. and Picea abies (L.) Karst) on soil bacterial and fungal communities. Mineral soil samples were collected from different depths (0–10, 10–20 cm) and at different horizontal distances from beech or spruce trunks (0.5, 1.5, 2.5, 3.5 m) in early summer and autumn. We assessed the composition of soil bacterial and fungal communities based on 16S rRNA gene and ITS DNA sequences. Community composition of bacteria and fungi was most strongly affected by soil pH and tree species. Different ectomycorrhizal fungi (e.g., Tylospora) known to establish mutualistic associations with plant roots showed a tree species preference. Moreover, bacterial and fungal community composition showed spatial and seasonal shifts in soil surrounding beech and spruce. The relative abundance of saprotrophic fungi was higher at a depth of 0–10 vs. 10–20 cm depth. This was presumably a result of changes in nutrient availability, as litter input and organic carbon content decreased with soil depth. Overall bacterial community composition showed strong variations under spruce with increasing distance from the tree trunks, which might be attributed in part to higher fine root biomass near spruce trunks. Furthermore, overall bacterial community composition was strongly affected by season under deciduous trees.

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“…Although several studies on the effect of heavy metals on abundance and diversity of AMF have been conducted, we still have a poor understanding of the factors that determine AMF community structure, symbiotic functioning and adaptive evolution (Antunes et al, 2012). Therefore, a better understanding of AMF communities in heavy metal contaminated areas is important to fully evaluate the plant-AMF (K€ onig et al, 2010;Thoms and Gleixner, 2013), AMFeAMF (Jansa et al, 2008) and AMF-soil (Bedini et al, 2010) interactions. The effects of heavy metals on soil environments are complex because of the complex array of parameters (Wang et al, 2010), and therefore it is crucial to identify specific phylotypes or ecotypes of AMF and their relationship with specific soil environments (Zarei et al, 2010).…”

Section: Introductionmentioning

confidence: 99%

Community structure of arbuscular mycorrhizal fungi associated with Robinia pseudoacacia in uncontaminated and heavy metal contaminated soils

Yang¹,

Song²,

Scheller³

et al. 2015

Soil Biology and Biochemistry

162

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a b s t r a c tThe significance of arbuscular mycorrhizal fungi (AMF) in soil remediation has been widely recognized because of their ability to promote plant growth and increase phytoremediation efficiency in heavy metal (HM) polluted soils by improving plant nutrient absorption and by influencing the fate of the metals in the plant and soil. However, the symbiotic functions of AMF in remediation of polluted soils depend on plantefungusesoil combinations and are greatly influenced by environmental conditions. To better understand the adaptation of plants and the related mycorrhizae to extreme environmental conditions, AMF colonization, spore density and community structure were analyzed in roots or rhizosphere soils of Robinia pseudoacacia. Mycorrhization was compared between uncontaminated soil and heavy metal contaminated soil from a leadezinc mining region of northwest China. Samples were analyzed by restriction fragment length polymorphism (RFLP) screening with AMF-specific primers (NS31 and AM1), and sequencing of rRNA small subunit (SSU). The phylogenetic analysis revealed 28 AMF group types, including six AMF families: Glomeraceae, Claroideoglomeraceae, Diversisporaceae, Acaulosporaceae, Pacisporaceae, and Gigasporaceae. Of all AMF group types, six (21%) were detected based on spore samples alone, four (14%) based on root samples alone, and five (18%) based on samples from root, soil and spore. Glo9 (Rhizophagus intraradices), Glo17 (Funneliformis mosseae) and Acau3 (Acaulospora sp.) were the three most abundant AMF group types in the current study. Soil Pb and Zn concentrations, pH, organic matter content, and phosphorus levels all showed significant correlations with the AMF species compositions in root and soil samples. Overall, the uncontaminated sites had higher species diversity than sites with heavy metal contamination. The study highlights the effects of different soil chemical parameters on AMF colonization, spore density and community structure in contaminated and uncontaminated sites. The tolerant AMF species isolated and identified from this study have potential for application in phytoremediation of heavy metal contaminated areas.

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Seasonal differences in tree species' influence on soil microbial communities

Cited by 114 publications

References 60 publications

Effects of tree identity dominate over tree diversity on the soil microbial community structure

Effects of tree identity dominate over tree diversity on the soil microbial community structure

Fine Spatial Scale Variation of Soil Microbial Communities under European Beech and Norway Spruce

Community structure of arbuscular mycorrhizal fungi associated with Robinia pseudoacacia in uncontaminated and heavy metal contaminated soils

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