Contribution of arbuscular mycorrhizal fungi in attenuation of heavy metal impact on Calendula officinalis development

Hristozkova, Marieta; Geneva, Maria; Stancheva, Ira; Boychinova, M.; Djonova, Efrosina

doi:10.1016/j.apsoil.2016.01.008

Cited by 80 publications

(19 citation statements)

References 38 publications

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“…plants and favoring their development in Mn mining soil. Similar results with AMF have also been observed by Nogueira et al (2007) in Glycine max L. Merrill plants grown in soil with excess Mn and by Hristozkova et al (2016) in Calendula officinalis L. plants grown in soil contaminated with cadmium and lead.…”

Section: Resultssupporting

confidence: 85%

Arbuscular Mycorrhizal Fungi in the Phytostabilization of Soil Degraded by Manganese Mining

Garcia¹,

Gomes²,

Filho³

et al. 2018

JAS

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Mining and processing of manganese (Mn) minerals are activities that may result in the generation of large amounts of wastes and serious environmental impacts. Several strategies have been employed to remediate areas with high Mn concentrations, but many of them imply high investments and high risk of secondary pollution. This study aimed to evaluate the phytostabilization potential of Mimosa caesalpiniaefolia Benth. in Mn mining soil influenced by inoculation with arbuscular mycorrhizal fungi (AMF). The experimental design was completely randomized, with four treatments [not inoculated (control), inoculated with Rhizophagus clarus; inoculated with Claroideoglomus etunicatum and inoculated with Rhizophagus clarus + Claroideoglomus etunicatum (Mix)], and four replicates. Inoculation with Mix and C. etunicatum had higher efficiency in protecting plants against excess Mn, due to the greater retention of this element in the roots and lower translocation to the shoots. Inoculation with R. clarus did not influence plant development and reduction of Mn contents in the shoots. The association of the AMF Mix and C. etunicatum with the species Mimosa caesalpiniaefolia Benth. enhances Mn phytostabilization in mining soils with high concentration of this element. The use of multivariate analyses proved to be an important tool with respect to the behavior of biometric, chemical and microbiological variables in mining soil with high Mn concentration.

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Section: Resultssupporting

confidence: 85%

Arbuscular Mycorrhizal Fungi in the Phytostabilization of Soil Degraded by Manganese Mining

Garcia¹,

Gomes²,

Filho³

et al. 2018

JAS

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“…The symbiotic association between mycorrhizal fungi and plant roots increases the root surface area and the soil volume explored and consequently the nutrient uptake, especially P (Bressan et al, 2001;Rooney et al, 2011;Sharif and Claassen, 2011;Smith et al, 2011;Zhao et al, 2015). In addition to increasing P uptake, the symbiosis between roots and mycorrhizal fungi can make plants more resistant to water stress (Zarik et al, 2016), stimulate biological nitrogen fixation (Whabi et al, 2016), increase tolerance to heavy metals (Hritozkova et al, 2016), promote soil aggregation (Leifheit;Verbruggen;Rillig, 2015) and even mitigate adverse effects of soil pH (Moreira;Siqueira, 2006). Therefore, the mycorrhizal fungi play an important role in the integrated management of soil fertility (Cozzolino;Meo;Piccolo, 2013).…”

Section: Introductionmentioning

confidence: 99%

Long-term phosphate fertilization, mycorrhizal inoculation and historical land use influence on soybean growth and P uptake

et al. 2016

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Phosphorus is a key-nutrient in the fertility management of highly weathered tropical soils. So, this work was carried out with the objective of evaluating the influence of the interaction between P doses, mycorrhizal inoculation and historical land use on soybean growth and P uptake in five Latosols (Oxisols) with contrasting chemical, physical and mineralogical properties under a continuous long-term phosphate fertilization (more than 15 years). The plants were cultivated in 4.5L-plastic pots containing 4 kg of soil in a completely randomized design, four replications and 2x2x2 factorial scheme with two P doses; and with or without mycorrhizal inoculation; and soils cultivated for long periods and non-cultivated (under native vegetation). There were two cultivations of ten weeks each. Shoot dry mass, P content and accumulation in the shoot dry mass were evaluated after each cultivation period. The cultivation history reduced the response to P application and inoculation. The soybean response to inoculation was greater in cultivated soils and when the lower P dose was applied. The soybean response magnitude to these variables was different among the studied Latosols. The mineralogical and chemical attributes of the Latosols were determinants.Index terms: Mycorrhiza; Latosols (Oxisols); available P; long-term cultivation. RESUMOO P é um nutriente chave no manejo da fertilidade de solos tropicais altamente intemperizados. Este trabalho foi conduzido com o objetivo de avaliar a influência da interação entre doses de P, inoculação micorrízica e histórico de uso do solo no crescimento da soja e absorção de P em cinco Latossolos com atributos físicos, químicos e mineralógicos contrastantes recebendo adubação fosfatada por longo período (> 15 anos). As plantas foram cultivadas em potes plásticos (4,5 L) contendo 4 kg de solo em um delineamento inteiramente casualizado, quatro repetições e esquema fatorial 2x2x2 correspondente a: duas doses de P; com e sem inoculação micorrízica; solos previamente cultivados e não cultivados (sob vegetação nativa). Foram realizados dois cultivos de dez semanas cada. Após cada um dos cultivos, avaliaram-se a massa seca da parte aérea, concentração e acúmulo de P na parte aérea. O cultivo do solo reduziu a resposta à aplicação de P e inoculação. A resposta da soja à inoculação foi maior nos solos cultivados e quando a menor dose de P foi aplicada. A magnitude dessas respostas foi diferente entre os Latossolos estudados, sendo os atributos mineralógicos e químicos dos Latossolos determinantes.Termos para indexação: Micorrizas; Latossolos; P disponível; cultivo do solo.

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“…To date there has been little study of AM fungi in relation to 232 Th, however, it has been previously observed that in the presence of R. irregularis, Medicago truncatula plants showed reduced shoot concentration of 232 Th but the fungi had no influence on root concentration of the radionuclide (Roos and Jakobsen, 2008 (Hristozkova et al, 2016;Zhou et al, 2017).…”

Section: Discussionmentioning

confidence: 99%

Multiple environmental factors influence 238U, 232Th and 226Ra bioaccumulation in arbuscular mycorrhizal-associated plants

Davies

Rosas-Moreno

Cox

et al. 2018

Science of The Total Environment

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Ecological consequences of low-dose radioactivity from natural sources or radioactive waste are important to understand but knowledge gaps still remain. In particular, the soil transfer and bioaccumulation of radionuclides into plant roots is poorly studied. Furthermore, better knowledge of arbuscular mycorrhizal (AM) fungi association may help understand the complexities of radionuclide bioaccumulation within the rhizosphere. Plant bioaccumulation of uranium, thorium and radium was demonstrated at two field sites, where plant tissue concentrations reached up to 46.93 μg gU, 0.67 μg gTh and 18.27 kBq kgRa. High root retention of uranium was consistent in all plant species studied. In contrast, most plants showed greater bioaccumulation of thorium and radium into above-ground tissues. The influence of specific soil parameters on root radionuclide bioaccumulation was examined. Total organic carbon significantly explained the variation in root uranium concentration, while other soil factors including copper concentration, magnesium concentration and pH significantly correlated with root concentrations of uranium, radium and thorium, respectively. All four orders of Glomeromycota were associated with root samples from both sites and all plant species studied showed varying association with AM fungi, ranging from zero to >60% root colonisation by fungal arbuscules. Previous laboratory studies using single plant-fungal species association had found a positive role of AM fungi in root uranium transfer, but no significant correlation between the amount of fungal infection and root uranium content in the field samples was found here. However, there was a significant negative correlation between AM fungal infection and radium accumulation. This study is the first to examine the role of AM fungi in radionuclide soil-plant transfer at a community level within the natural environment. We conclude that biotic factors alongside various abiotic factors influence the soil-plant transfer of radionuclides and future mechanistic studies are needed to explain these interactions in more detail.

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Contribution of arbuscular mycorrhizal fungi in attenuation of heavy metal impact on Calendula officinalis development

Cited by 80 publications

References 38 publications

Arbuscular Mycorrhizal Fungi in the Phytostabilization of Soil Degraded by Manganese Mining

Arbuscular Mycorrhizal Fungi in the Phytostabilization of Soil Degraded by Manganese Mining

Long-term phosphate fertilization, mycorrhizal inoculation and historical land use influence on soybean growth and P uptake

Multiple environmental factors influence 238U, 232Th and 226Ra bioaccumulation in arbuscular mycorrhizal-associated plants

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