Shifting the balance from qualitative to quantitative analysis of arbuscular mycorrhizal communities in field soils

Robinson‐Boyer, Louisa; Grzyb, Izabela; Jeffries, Peter

doi:10.1016/j.funeco.2008.11.001

Cited by 43 publications

(19 citation statements)

References 75 publications

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“…The diversity assessment indicated Glomus to be the dominant and frequent genus associated with the rhizosphere of grasses. This is in accordance with Robinson-Boyer et al (2009) who indicated the frequent and abundant occurrence of Glomus spores than spores of other genera in different soil and vegetation types. The AM fungal species richness observed (2.0 to 2.79) in the percent study is almost similar or higher than those reported in other studies.…”

Section: Discussionsupporting

confidence: 93%

“…The lack of correlation between these mycorrhizal variables could be attributed to colonization initiated by propagules other than spores like AM fungal hyphae in the soil or mycorrhizal roots of adjacent plants (Smith and Read 2008) Spore analysis can provide an effective assay of AM fungal community (Robison-Boyer et al 2009). Earlier studies have shown variation in AM fungal communities between study sites and between plant species within the same site (Chaudhry et al 2006(Chaudhry et al , 2009Robinson-Boyer et al 2009). Our study also indicated the site related differences in AM fungal community.…”

Section: Discussionmentioning

confidence: 93%

“…For sites, see Table 2. As, Acaulospora scrobiculata; Gv, Glomus viscosum; Gs, Glomus sinuosum; Gg, Glomus geosporum; Gd, Glomus deserticola; Ga, Glomus aggregatum; Gh, Glomus heterosporum; Gmi, Glomus microcarpum; Gam, Glomus ambisporum; Gm, Glomus mosseae; Sc, Scutellospora calospora studies (Brundrett 1991;Zahka et al 1995;Robinson-Boyer et al 2009) AM fungal spore numbers were not related to the extent of root colonization. The lack of correlation between these mycorrhizal variables could be attributed to colonization initiated by propagules other than spores like AM fungal hyphae in the soil or mycorrhizal roots of adjacent plants (Smith and Read 2008) Spore analysis can provide an effective assay of AM fungal community (Robison-Boyer et al 2009).…”

Section: Discussionmentioning

confidence: 99%

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Arbuscular mycorrhizal and dark septate endophyte fungal associations in South Indian grasses

2010

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Abstracts We examined arbuscular mycorrhizal (AM) and dark septate endophyte (DSE) fungal association in 50 south Indian grasses from four different sites. AM fungal diversity was also compared among the different sites. Forty-four of the 50 grasses examined had AM association and dual association with DSE fungi occurred in 25 grasses. We report for the first time AM and DSE fungal status in 23 and 27 grasses respectively. Arum-type AM morphology was the dominant occurring in 21 grasses with typical Paris-type colonization occurring in 6 grasses. AM morphology is reported for the first time in 35 grasses. Over the different sites, spore density in the soil ranged from 5-22 per 100 g air-dried soil. Spores of 11 AM fungal taxa were isolated from the soil samples of grasses of which nine belonged to Glomus, one to Acaulospora and one to Scutellospora. No significant relationship existed between AM fungal colonization and spore numbers. Species richness was high in site II and Glomus aggregatum, Glomus viscosum and Glomus mosseae were most frequent species at different sites. Overall species diversity indices (Simpson index, Shannon-Weaver index, species equitability index) differed significantly between sites.

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Section: Discussionsupporting

confidence: 93%

Section: Discussionmentioning

confidence: 93%

Section: Discussionmentioning

confidence: 99%

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Arbuscular mycorrhizal and dark septate endophyte fungal associations in South Indian grasses

2010

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“…Thus, identification of spores has also been widely used to characterize AMF communities in soil (10,24,25).…”

mentioning

confidence: 99%

Soil Characteristics Driving Arbuscular Mycorrhizal Fungal Communities in Semiarid Mediterranean Soils

Alguacil

Torres

Montesinos‐Navarro

et al. 2016

Appl Environ Microbiol

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We investigated communities of arbuscular mycorrhizal fungi (AMF) in the roots and the rhizosphere soil of Brachypodium retusum in six different natural soils under field conditions. We explored phylogenetic patterns of AMF composition using indicator species analyses to find AMF associated with a given habitat (root versus rhizosphere) or soil type. We tested whether the AMF characteristics of different habitats or contrasting soils were more closely related than expected by chance. Then we used principal-component analysis and multivariate analysis of variance to test for the relative contribution of each factor in explaining the variation in fungal community composition. Finally, we used redundancy analysis to identify the soil properties that significantly explained the differences in AMF communities across soil types. The results pointed out a tendency of AMF communities in roots to be closely related and different from those in the rhizosphere soil. The indicator species analyses revealed AMF associated with rhizosphere soil and the root habitat. Soil type also determined the distribution of AMF communities in soils, and this effect could not be attributed to a single soil characteristic, as at least three soil properties related to microbial activity, i.e., pH and levels of two micronutrients (Mn and Zn), played significant roles in triggering AMF populations. IMPORTANCECommunities of arbuscular mycorrhizal fungi (AMF) are main components of soil biota that can determine the productivity of ecosystems. These fungal assemblages vary across host plants and ecosystems, but the main ecological processes that shape the structures of these communities are still largely unknown. A field study in six different soil types from semiarid areas revealed that AMF communities are significantly influenced by habitat (soil versus roots) and soil type. In addition, three soil properties related to microbiological activity (i.e., pH and manganese and zinc levels) were the main factors triggering the distribution of AMF. These results contribute to a better understanding of the ecological factors that can shape AMF communities, an important soil microbial group that affects multiple ecosystem functions.A rbuscular mycorrhizal fungi (AMF) represent an important soil microbial group that affects multiple ecosystem functions and processes, including nutrient cycling, plant productivity and competition, and plant diversity. As a consequence, the number of ecological studies concerning AMF has increased considerably in recent years (1-9). Those studies considered AMF communities associated with different host plants in many different ecosystems. However, studies comparing the occurrence of specific AMF species and communities in different soil types are scarce and have focused mainly on cultivated soils and different land uses (10-13). Differences in soil types have been reported to be key factors determining AMF community composition (10), and this is particularly relevant in stressed environments such as serpentine soi...

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“…In this way, spore data can corroborate root and/or soil inventories. Robinson-Boyer et al (2009) present a comprehensive analysis of the merits of spore versus root DNA approaches.…”

Section: Sporesmentioning

confidence: 99%

Molecular approaches for AM fungal community ecology: A primer

Gorzelak

Holland

Xing

et al. 2012

Journal of Microbiological Methods

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Shifting the balance from qualitative to quantitative analysis of arbuscular mycorrhizal communities in field soils

Cited by 43 publications

References 75 publications

Arbuscular mycorrhizal and dark septate endophyte fungal associations in South Indian grasses

Arbuscular mycorrhizal and dark septate endophyte fungal associations in South Indian grasses

Soil Characteristics Driving Arbuscular Mycorrhizal Fungal Communities in Semiarid Mediterranean Soils

Molecular approaches for AM fungal community ecology: A primer

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