Fungal growth and effects of different wood decomposing fungi on the indigenous bacterial community of polluted and unpolluted soils

Tornberg, Karin; Bååth, Erland; Olsson, Stefan

doi:10.1007/s00374-002-0574-1

Cited by 68 publications

(26 citation statements)

References 36 publications

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“…The effect of fungi on bacterial communities in soil can be decisive. In an experiment, where wooddecomposing basidiomycetes were growing through soil between different woody resources, it was found that the bacterial communities in the soil became characteristic for the species of fungus growing through it (Fig 6) (Tornberg et al, 2003). This large mycelial impact on the bacterial species composition is probably caused by a combination of stimulatory and inhibitory effects.…”

Section: Mycelial Interactions With Other Microorganismsmentioning

confidence: 99%

Fungal translocation - creating and responding to environmental heterogeneity

Lindahl

Olsson²

2004

Mycologist

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Section: Mycelial Interactions With Other Microorganismsmentioning

confidence: 99%

Fungal translocation - creating and responding to environmental heterogeneity

Lindahl

Olsson²

2004

Mycologist

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“…Previous studies of saprotrophic basidiomycetes in wood showed that fungi can selectively affect the composition of microbial communities (Tornberg et al ., 2003; Folman et al ., 2008; Valášková et al ., 2009; de Boer et al ., 2010). White‐rot fungi produce organic acids, which act as chelating agents in the formation of reactive radicals during lignin decomposition, but also ensure high efficiency of polysaccharide hydrolysis by acidification of the environment.…”

Section: Discussionmentioning

confidence: 99%

Saprotrophic basidiomycete mycelia and their interspecific interactions affect the spatial distribution of extracellular enzymes in soil

Šnajdr

Dobiášová

Větrovský

et al. 2011

FEMS Microbiology Ecology

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Saprotrophic cord-forming basidiomycetes are important decomposers of lignocellulosic substrates in soil. The production of extracellular hydrolytic enzymes was studied during the growth of two saprotrophic basidiomycetes, Hypholoma fasciculare and Phanerochaete velutina, across the surface of nonsterile soil microcosms, along with the effects of these basidiomycetes on fungi and bacteria within the soil. Higher activities of α-glucosidase, β-glucosidase, cellobiohydrolase, β-xylosidase, phosphomonoesterase and phosphodiesterase, but not of arylsulphatase, were recorded beneath the mycelia. Despite the fact that H. fasciculare, with exploitative hyphal growth, produced much denser hyphal cover on the soil surface than P. velutina, with explorative growth, both fungi produced similar amounts of extracellular enzymes. In the areas where the mycelia of H. fasciculare and P. velutina interacted, the activities of N-acetylglucosaminidase, α-glucosidase and phosphomonoesterase, the enzymes potentially involved in hyphal cell wall damage, and the utilization of compounds released from damaged hyphae of interacting fungi, were particularly increased. No significant differences in fungal biomass were observed between basidiomycete-colonized and noncolonized soil, but bacterial biomass was reduced in soil with H. fasciculare. The increases in the activities of β-xylosidase, β-glucosidase, phosphomonoesterase and cellobiohydrolase with increasing fungal:bacterial biomass ratio indicate the positive effects of fungal enzymes on nutrient release and bacterial abundance, which is reflected in the positive correlation of bacterial and fungal biomass content.

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“…We selected 18:2ω6c and 18:1ω9c as fungi markers [38]. The PLFAs 14:0, 15:0, 16:0, 16:1ω5c, 17:0, and 18:0 were detected in both bacteria and fungi; thus, they were used to assess the unclassified markers [39][40][41]. The sum of all selected phospholipids was used to estimate the total microbial biomass and for the analysis of microbial community structure.…”

Section: Phospholipid Fatty Acid Analysismentioning

confidence: 99%

Nitrogen Addition Affects Soil Respiration Primarily through Changes in Microbial Community Structure and Biomass in a Subtropical Natural Forest

Zhou

Liu

Xie

et al. 2019

Forests

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Forest soil respiration plays an important role in global carbon (C) cycling. Owing to the high degree of C and nitrogen (N) cycle coupling, N deposition rates may greatly influence forest soil respiration, and possibly even global C cycling. Soil microbes play a crucial role in regulating the biosphere–atmosphere C exchange; however, how microbes respond to N addition remains uncertain. To better understand this process, the experiment was performed in the Castanopsis kawakamii Hayata Nature Reserve, in the subtropical zone of China. Treatments involved applying different levels of N (0, 40, and 80 kg ha−2 year−1) over a three-year period (January 2013–December 2015) to explore how soil physicochemical properties, respiration rate, phospholipid fatty acid (PLFA) concentration, and solid state 13C nuclear magnetic resonance responded to various N addition rate. Results showed that high levels of N addition significantly decreased soil respiration; however, low levels of N addition significantly increased soil respiration. High levels of N reduced soil pH and enhanced P and C co-limitation of microorganisms, leading to significant reductions in total PLFA and changes in the structure of microbial communities. Significant linear relationships were observed between annual cumulative respiration and the concentration of microbial biomass (total PLFA, gram-positive bacteria (G+), gram-negative bacteria (G−), total bacteria, and fungi) and the microbial community structure (G+: G− ratio). Taken together, increasing N deposition changed microbial community structure and suppressed microbial biomass, ultimately leading to recalcitrant C accumulation and soil C emissions decrease in subtropical forest.

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Fungal growth and effects of different wood decomposing fungi on the indigenous bacterial community of polluted and unpolluted soils

Cited by 68 publications

References 36 publications

Fungal translocation - creating and responding to environmental heterogeneity

Fungal translocation - creating and responding to environmental heterogeneity

Saprotrophic basidiomycete mycelia and their interspecific interactions affect the spatial distribution of extracellular enzymes in soil

Nitrogen Addition Affects Soil Respiration Primarily through Changes in Microbial Community Structure and Biomass in a Subtropical Natural Forest

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