Suppression of other soil microorganisms by mycelium of arbuscular mycorrhizal fungi in root-free soil

Welc, Monika; Ravnskov, Sabine; Kieliszewska-Rokicka, Barbara; Larsen, John

doi:10.1016/j.soilbio.2010.05.024

Cited by 56 publications

(48 citation statements)

References 52 publications

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“…Root-free compartment with sand:soil and AE Benomyl Cellulose PLFA Abundance of most microbial groups suppressed (particularly when G. mosseae present) which was unaffected by cellulose amendment Welc et al (2010) added) undoubtedly contributes to the variation reported. Many studies have followed changes in the microbial community using PLFA analysis (see Table 2.4), and as previously noted, this approach can have issues with sensitivity and resolution.…”

Section: G Mosseae G Intraradicesmentioning

confidence: 93%

“…Consequently, interactions between AMF and the microbial community will determine the nutrients available for capture by the AMF. Welc et al (2010) reported that the presence of AMF largely suppressed other soil microorganisms irrespective of the presence or absence of an organic substrate (cellulose), while Ravnskov et al (1999) found the influence of AMF on the microbial community differed depending on the type of organic substrate added (see Table 2.4). For example, in organic amendments the presence of AMF hyphae have been found to have a positive (Ravnskov et al, 1999) or no effect (Herman et al, 2012) on saprotrophic fungi (Table 2.4).…”

Section: Interactions With Soil Microorganisms In Organic Substratesmentioning

confidence: 99%

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Interactions Between Arbuscular Mycorrhizal Fungi and Organic Material Substrates

Hodge

2014

Advances in Applied Microbiology

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Section: G Mosseae G Intraradicesmentioning

confidence: 93%

Section: Interactions With Soil Microorganisms In Organic Substratesmentioning

confidence: 99%

Interactions Between Arbuscular Mycorrhizal Fungi and Organic Material Substrates

Hodge

2014

Advances in Applied Microbiology

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“…In addition, Welc et al (2010) reported that AMF mycelium could suppress the soil bacterial community. Furthermore, many specific bacterial taxa are highly associated with AMF as they colonize and live on the surface of the hyphae (Cruz and Ishii, 2011; Iffis et al, 2014).…”

Section: Introductionmentioning

confidence: 99%

The Arbuscular Mycorrhizal Fungus Funneliformis mosseae Alters Bacterial Communities in Subtropical Forest Soils during Litter Decomposition

Gui¹,

Purahong²,

Hyde³

et al. 2017

Front. Microbiol.

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Bacterial communities and arbuscular mycorrhizal fungi (AMF) co-occur in the soil, however, the interaction between these two groups during litter decomposition remains largely unexplored. In order to investigate the effect of AMF on soil bacterial communities, we designed dual compartment microcosms, where AMF (Funneliformis mosseae) was allowed access (AM) to, or excluded (NM) from, a compartment containing forest soil and litterbags. Soil samples from this compartment were analyzed at 0, 90, 120, 150, and 180 days. For each sample, Illumina sequencing was used to assess any changes in the soil bacterial communities. We found that most of the obtained operational taxonomic units (OTUs) from both treatments belonged to the phylum of Proteobacteria, Acidobacteria, and Actinobacteria. The community composition of bacteria at phylum and class levels was slightly influenced by both time and AMF. In addition, time and AMF significantly affected bacterial genera (e.g., Candidatus Solibacter, Dyella, Phenylobacterium) involved in litter decomposition. Opposite to the bacterial community composition, we found that overall soil bacterial OTU richness and diversity are relatively stable and were not significantly influenced by either time or AMF inoculation. OTU richness at phylum and class levels also showed consistent results with overall bacterial OTU richness. Our study provides new insight into the influence of AMF on soil bacterial communities at the genus level.

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“…While quantitative changes in bacterial numbers in the soil surrounding the AMF are seldom reported, changes in bacterial composition may occur (Olsson et al, 1996;Andrade et al, 1997). After the addition of substrates to soil, direct interactions between AMF and other key microorganisms have been investigated (Larsen et al, 1998;Green et al, 1999;Albertsen et al, 2006;Welc et al, 2010); however, these studies have tended to concentrate on only a small number of other organisms (Larsen et al, 1998;Green et al, 1999) and often in artificial media. After the addition of substrates to soil, direct interactions between AMF and other key microorganisms have been investigated (Larsen et al, 1998;Green et al, 1999;Albertsen et al, 2006;Welc et al, 2010); however, these studies have tended to concentrate on only a small number of other organisms (Larsen et al, 1998;Green et al, 1999) and often in artificial media.…”

Section: Introductionmentioning

confidence: 99%

Interactions between an arbuscular mycorrhizal fungus and a soil microbial community mediating litter decomposition

Herman

Firestone

Nuccio

et al. 2012

FEMS Microbiol Ecol

221

153

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We investigated arbuscular mycorrhizal fungi (AMF) alteration of microbial mediation of litter decomposition. AMF (Glomus hoi) were either allowed access to or excluded from Plantago lanceolata L. root litter embedded in soil; litter was labeled with either (13) C only or (13) C and (15) N. Plant N uptake was significantly increased if AMF accessed the litter, and (15) N analysis of the plant material indicated that 2-3% of plant N originated from litter. Succession of the soil community mediating decomposition was assessed by phospholipid fatty acids (PLFA) combined with (13) C-PLFA. During the first 21 days of decomposition, saprotrophic fungi and Gram-negative bacteria were the dominant consumers of litter C. As decomposition progressed however, (13) C content of the fungal biomarkers declined substantially, and Gram-negative and Gram-positive bacteria became the primary reservoirs of labeled litter C. The putative PLFA marker for AMF (16:1ω5c) originated primarily from non-AMF sources. In AMF-invaded root litter, Gram-negative, Gram-positive, and 16:1ω5c markers became less (13) C-enriched relative to their counterparts in non-AMF-invaded microcosms during active decomposition. These patterns of (13) C: (12) C enrichment may result from AMF supply of (12) C from the plant to the decomposing soil microbial community; such C inputs could alter the microbial mediation of litter decomposition.

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Suppression of other soil microorganisms by mycelium of arbuscular mycorrhizal fungi in root-free soil

Cited by 56 publications

References 52 publications

Interactions Between Arbuscular Mycorrhizal Fungi and Organic Material Substrates

Interactions Between Arbuscular Mycorrhizal Fungi and Organic Material Substrates

The Arbuscular Mycorrhizal Fungus Funneliformis mosseae Alters Bacterial Communities in Subtropical Forest Soils during Litter Decomposition

Interactions between an arbuscular mycorrhizal fungus and a soil microbial community mediating litter decomposition

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