Diversity of arbuscular mycorrhizal fungi in grassland spontaneously developed on area polluted by a fertilizer plant

Renker, Carsten; Blanke, Verena; Buscot, François

doi:10.1016/j.envpol.2004.11.002

Cited by 59 publications

(35 citation statements)

References 47 publications

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“…Lack of detection of Archaeosporaceae in both samples (maize roots and soils) did not probably depend on the primers used since NS31/AM1 successfully amplified many Archaeospora sequences from Collinsia sparsiflora roots in Californian soils (Schechter and Bruns 2008). On the other hand, whilst Archaeospora species have frequently been found in trap cultures, they have never been detected in arable soils (Hijri et al 2006), which is in agreement with the results of other molecular studies on AMF communities in Central Europe (Daniell et al 2001;Vandenkoornhuyse et al 2002;Gollotte et al 2004;Scheublin et al 2004;Renker et al 2005;Börstler et al 2006).…”

Section: Each Primer Combination Contributes To Amf Diversity Descripsupporting

confidence: 80%

Effects of different management practices on arbuscular mycorrhizal fungal diversity in maize fields by a molecular approach

et al. 2012

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Effects of different management practices on arbuscular mycorrhizal fungal diversity in maize fields by a molecular approach / R. Borriello; E. Lumini; M. Girlanda; P. Bonfante; V. Bianciotto. AbstractAs obligate mutualistic symbionts, arbuscular mycorrhizal fungi (AMF) colonize the roots of many agricultural crops, and it is often claimed that agricultural practices are detrimental to AMF. As a result, agroecosystems impoverished in AMF may not get the fully expected range of benefits from these fungi. Using molecular markers on DNA extracted directly from soil and roots, we studied the effects of different management practices (tillage and N fertilization) on the AMF communities colonizing an experimental maize field in Central Italy. Our molecular analysis based on three different nuclear rRNA regions (18S, 28S and ITS) allowed us to assess AMF biodiversity. Glomeraceae members were the main colonizer, and they co-occurred with Gigasporaceae and Paraglomus regardless of the management practices applied. Diversisporaceae and Entrophosporaceae members were instead detected in the N-fertilized soils and in the untreated soil, respectively. The results obtained indicated that the general AMF assemblages structure and composition in the maize field plots appear to be primarily influenced by N fertilization and, to a lesser extent, by tillage. This study also validates the usefulness of multiple molecular markers to consolidate and refine the assessment of the environmental AMF diversity.

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Section: Each Primer Combination Contributes To Amf Diversity Descripsupporting

confidence: 80%

Effects of different management practices on arbuscular mycorrhizal fungal diversity in maize fields by a molecular approach

et al. 2012

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“…From molecular analysis, the AM fungal OTU compositions of the indigenous spores did not correspond with that of colonized roots. Recently, increasing evidence from molecular approaches has shown a poor match between the species of AM fungal spores and AM fungi in roots of grassland plants (Clapp et al 1995;Merryweather and Fitter 1998;Renker et al 2005;Börstler et al 2006;Hempel et al 2007;Li et al 2010). These results are similar to our results in ASS.…”

Section: Discussionsupporting

confidence: 94%

Molecular diversity and spore density of indigenous arbuscular mycorrhizal fungi in acid sulfate soil in Thailand

Higo

Isobe

Kang³

et al. 2010

Ann Microbiol

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Acid sulfate soil (ASS) has an extremely low pH (3.0) and a high capacity to fix phosphate; symptoms of phosphate deficiency are commonly observed in many crop plants. Arbuscular mycorrhizal (AM) fungi form mutualistic relationships with plant roots, and improve uptake of phosphate from soil. However, there is little information on the actual situation of AM fungi in ASS in Thailand. The purpose of the present study is to determine the indigenous AM fungal density and species in ASS in Thailand. AM fungal spores were retrieved and identified by molecular approaches from ASS field at the central plain of Thailand. This study showed that AM fungal spore density in ASS was 0.232 spores per g dry soil. Among the plant species growing in the natural ASS, there was no AM fungal colonization in the roots of four plant species, i.e. Digitaria sp., Fimbristylis sp., Mimosa pudica L., and Sesbania sp.; however, AM colonization was found in Wedelia roots. Using phylogenetic analysis, four operational taxonomic units (OTUs), i.e., one Glomus, one Entrophospora, one Paraglomus and one unknown species were identified from the AM fungal spores. Five OTUs, i.e., two Glomus, one Acaulospora, one Entrophospora and one unknown Glomeromycota were indentified from Wedelia roots. To our knowledge, this is the first report of the actual situation of AM fungi in ASS in Thailand determined by using molecular approaches.

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“…On the other hand, reasonable degrees of root colonization (>70% of the root length being colonized) were observed in maize and soybeans in North American soils with available P well above those required for maximum yield (Lu & Miller 1989;Khalil et al 1992). Moreover, AMF were still colonizing plants growing in a P-polluted soil with available P (calcium acetate-calcium lactate extraction) content reaching 12 g kg -1 soil (Renker et aL 2005). The responses of AMF root colonization to N fertilization are less consistent than for E Inputs of N into soil, through mineral fertilizers or aerial depositions, usually decrease root colonization (EgertonWarburton & Allen 2000;Baum et al 2002), but moderate N inputs may have positive effects on the colonization of roots of tall-grass prairie plants (Eom et al 1999).…”

Section: Inputs Of Fertilizersmentioning

confidence: 91%

The effects of agricultural practices on arbuscular mycorrhizal fungi

2006

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Arbuscular mycorrhizal fungi (AMF) form symbiotic associations with the majority of land plants, including many important agricultural crops. These fungi facilitate plant nutrient uptake, promote soil aggregation and use a significant portion of reduced carbon from the plants. AMF functional traits differ considerably among and within species, meaning that functional properties of a mycorrhizal community depend on its composition. Here we review studies exploring the effects of agricultural practices such as tillage, crop rotation, fertilization, pesticide application, irrigation and grazing on AMF communities. Although it is difficult to generalize the results of studies performed under different soil and climatic conditions, some universal patterns emerge. For example, soil tillage reduces the abundance of Scutellospora spp.; phosphorus fertilization lowers the extent of AMF root colonization; and diversification of crops results in more diverse AMF communities. We now need to design simple and reliable field tests for quantifying the effects of AMF communities on crop growth, yields and sustainability of the agro-ecosystems.

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Diversity of arbuscular mycorrhizal fungi in grassland spontaneously developed on area polluted by a fertilizer plant

Cited by 59 publications

References 47 publications

Effects of different management practices on arbuscular mycorrhizal fungal diversity in maize fields by a molecular approach

Effects of different management practices on arbuscular mycorrhizal fungal diversity in maize fields by a molecular approach

Molecular diversity and spore density of indigenous arbuscular mycorrhizal fungi in acid sulfate soil in Thailand

The effects of agricultural practices on arbuscular mycorrhizal fungi

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