Arbuscular mycorrhizal abundance in contaminated soils around a zinc and lead deposit

Zarei, Mehdi; Saleh‐Rastin, N.; Jouzani, Gholamreza Salehi; Savaghebi, G.; Buscot, François

doi:10.1016/j.ejsobi.2008.06.004

Cited by 53 publications

(34 citation statements)

References 34 publications

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“…Zarei et al [55,63,64] found from 60 to 131 spores per 150 g of dry soil at a site adjacent to a Zn and Pb open pit mine. Pawłowska et al [65] determined 30-38 spores per 150 g of substrate from calamine spoil mound, del Val et al [19] 45-345 spores per 150 g of soil contaminated by addition of sewage sludge and Wu et al [66] 132-492 spores per 150 g of soil contaminated by As/Pb/Zn mines.…”

Section: Discussionmentioning

confidence: 99%

Arbuscular mycorrhiza of Deschampsia cespitosa (Poaceae) at different soil depths in highly metal-contaminated site in southern Poland

et al. 2013

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This study presents root colonization of Deschampsia cespitosa growing in the immediate vicinity of a former Pb/Zn smelter by arbuscular mycorhizal fungi (AMF) and dark septated endophytes (DSE) at different soil depths. AMF spores and species distribution in soil profile were also assessed. Arbuscular mycorrhiza (AM) and DSE were found in D. cespitosa roots at all investigated soil levels. However, mycorrhizal colonization in topsoil was extremely low with sporadically occurring arbuscules. AM parameters: frequency of mycorrhization of root fragments (F%), intensity of root cortex colonization (M%), intensity of colonization within individual mycorrhizal roots (m%), and arbuscule abundance in the root system (A%) were markedly higher at 20–40, 40–60 cm soil levels and differed in a statistically significant manner from AM parameters from 0–10 and 10–20 cm layers. Mycorrhizal colonization was negatively correlated with bioavailable Cd, Pb and Zn concentrations. The number of AMF spores in topsoil was very low and increased with soil depth (20–40 and 40–60 cm). At the study area spores of three morphologically distinctive AMF species were found: Archaeospora trappei, Funneliformis mosseae and Scutellospora dipurpurescens. The fourth species Glomus tenue colonized roots of D. cespitosa and was observed in the root cortex at 20–40 and 40–60 soil depth, however, its spores were not found at the site.

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Section: Discussionmentioning

confidence: 99%

Arbuscular mycorrhiza of Deschampsia cespitosa (Poaceae) at different soil depths in highly metal-contaminated site in southern Poland

et al. 2013

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Section: Importancementioning

confidence: 99%

“…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 soils (14-16), thermal soils (17), heavy metal soils, and saline soils (18)(19)(20)(21)(22)(23).Traditionally, studies on AMF abundance and distribution have been made by spore extraction from soil and identification based on the morphology and ontogeny of the spores. Thus, identification of spores has also been widely used to characterize AMF communities in soil (10,24,25).…”

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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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“…The physical (Page et al, 1982), chemical (Lindsay andNorvell, 1978;Page et al, 1982) and biological (Gerdemann and Nicolson, 1963;Jenkis, 1964;Zarei et al, 2008) properties of the selected soil are shown in Table 1 …”

Section: Soil Characteristics and Treatmentsmentioning

confidence: 99%

“…In mycorrhizal treatments, 70 g of G. mosseae inoculum (containing spore numbers of 9 g -1 substrate and root colonization of 81%) was added to each pot at sowing time just below the maize seeds. The potential of the inoculum was measured following the methods described by Zarei et al (2008), for spore extraction and counting, and evaluation of root colonization. In bacterial treatments, each seed of maize (var.…”

Section: Microbial Inoculation Of Soil and Plant Growth Conditionsmentioning

confidence: 99%

Influence of arbuscular mycorrhizal fungi and an improving growth bacterium on Cd uptake and maize growth in Cd-polluted soils

Malekzadeh

Alikhani

Savaghebi-Firoozabadi

et al. 1970

Span. j. agric. res.

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In a pot experiment, the effects of the bacterium strain Micrococcus roseus, native soil arbuscular mycorrhizal fungi (AMF) and the fungus Glomus mosseae on the growth, P, N, Fe, Mn, Zn and Cd uptake of maize in a soil polluted with Cd were investigated. A three-factor experiment was set up in a randomized complete design with three replicates of each treatment. The factors in the experiment were as follows: 1) AMF with two levels, G 1 (native AMF) and G 2 (G. mosseae + G 1 ); 2) bacterium promoting plant growth with two levels, B 0 (no inoculation) and B 1 (inoculation with M. roseus); and 3) cadmium with three levels (0, 100 and 200 mg Cd kg -1 soil). G 2 significantly increased root colonization, plant biomass, shoot nutrients and Cd uptake of plants in comparison with G 1 in Cd polluted conditions. The single presence of AMF contributed to the stabilization of Cd in roots and soil. Shoot and root dry weights, and shoot nutrients uptake of plants co-inoculated with bacterium and AMF were higher than mycorrhizal plants in the soil polluted with Cd. Plants co-inoculated with bacterium and G 2 had higher amount of shoot Cd uptake, root Cd uptake, Cd phytoextraction, translocation, and uptake efficiencies under both Cd concentrations than only mycorrhizal plants. The results showed that, most of the Cd was sequestered in roots of plants co-inoculated with bacterium and native AMF in the soil with 100 and 200 mg Cd kg -1 . Additional key words: cadmium; Glomus mosseae; Micrococcus roseus; native AMF; phytoremediation; Zea mays L. ResumenInfluencia de los hongos micorrícicos arbusculares y de una bacteria promotora del crecimiento en la absorción de Cd y el crecimiento del maíz en suelos contaminados con Cd Se investigaron, en un experimento en macetas, los efectos de la bacteria Micrococcus roseus, hongos micorrícicos arbusculares (AMF) nativos del suelo y el hongo Glomus mosseae en el crecimiento, así como en la absorción de P, N, Fe, Mn, Zn y Cd por el maíz en un suelo contaminado con Cd. Se estableció un experimento trifactorial en un diseño completamente al azar con tres repeticiones por tratamiento. Los factores fueron: 1) AMF con dos niveles, G 1 (AMF nativos) y G 2 (G. mosseae + G 1 ), 2) bacterias promotoras del crecimiento de las plantas con dos niveles, B 0 (sin inoculación) y B 1 (inoculación con M. roseus); y 3) cadmio a tres niveles (0, 100 y 200 mg Cd kg -1 suelo). En condiciones de contaminación con Cd, G 2 aumentó significativamente, comparado con G 1 , la colonización de las raíces, la biomasa vegetal, y la absorción de nutrientes y Cd en los brotes de las plantas. La sola presencia de AMF contribuyó a la estabilización de Cd en las raíces y el suelo. En el suelo contaminado con Cd, el peso seco de los brotes y las raíces, y la absorción de los nutrientes de los brotes en las plantas coinoculadas con la bacteria y los AMF fueron mayores que en las plantas micorrizadas. Las plantas coinoculadas con la bacteria y G 2 presentaron mayor cantidad de absorción de Cd en los brotes y raíces, fitoe...

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Arbuscular mycorrhizal abundance in contaminated soils around a zinc and lead deposit

Cited by 53 publications

References 34 publications

Arbuscular mycorrhiza of Deschampsia cespitosa (Poaceae) at different soil depths in highly metal-contaminated site in southern Poland

Arbuscular mycorrhiza of Deschampsia cespitosa (Poaceae) at different soil depths in highly metal-contaminated site in southern Poland

Soil Characteristics Driving Arbuscular Mycorrhizal Fungal Communities in Semiarid Mediterranean Soils

Influence of arbuscular mycorrhizal fungi and an improving growth bacterium on Cd uptake and maize growth in Cd-polluted soils

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