Arbuscular Mycorrhiza, Heavy Metal,and Salt Tolerance

Bothe, Hermann; Regvar, Marjana; Turnau, Katarzyna

doi:10.1007/978-3-642-02436-8_5

Cited by 23 publications

(12 citation statements)

References 64 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Cation exchange capacity [cmol(+)/kg] was determined according to Houba et al [44]. The fraction of bioavailable metals was obtained by extraction of 3 g of airdried soil (ground to <0.25 mm) with 30 ml 0.01 M CaCl 2 for 5 h; total metal content was determined after extraction of air-dried soil ground to <0.25 mm with concentrated HClO 4 and HF. Concentration of metals was analyzed by using flame atomic absorption spectrophotometry (Varian Spectra AA300).…”

Section: Soil Analysesmentioning

confidence: 99%

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

et al. 2013

View full text Add to dashboard Cite

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.

show abstract

Section: Soil Analysesmentioning

confidence: 99%

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

et al. 2013

View full text Add to dashboard Cite

show abstract

“…The association of roots with soil microorganisms such as mycorrhisal fungi can also attenuate the negative effects of high metal concentrations in soil (Andrade et al, 2003;Bothe et al, 2010). The mycorrhisal association becomes increasingly important for plants growing in contaminated soil that benefit from improved tolerance to other abiotic or biotic stresses in addition to improved mineral nutrition (Gohre and Paszkowski, 2006).…”

Section: Introductionmentioning

confidence: 99%

Lead tolerance and phytoremediation potential of Brazilian leguminous tree species at the seedling stage

Souza

Andrade

Souza

et al. 2012

Journal of Environmental Management

View full text Add to dashboard Cite

“…Mechanisms include metal ions substituting for chemically similar metals as cofactors in enzymes, generating reactive oxygen species, or interfering with the uptake of chemically similar micronutrients (Brady et al 2005; Bothe et al 2010). Even metals which are essential nutrients can be toxic in sufficiently large concentrations (Broadley et al 2007).…”

Section: Introductionmentioning

confidence: 99%

“…For instance, some endemic species grow only where stress associated with naturally metalliferous serpentine soils reduces competition with other species that would otherwise outcompete them (Brady et al 2005). Plants may use several metal tolerance strategies, including hyperaccumulating or excluding metals (Baker 1981), and they have diverse cellular and molecular strategies for alleviating metal toxicity or bioavailability in the soil (Bothe et al 2010). …”

Section: Introductionmentioning

confidence: 99%

Arbuscular mycorrhizal colonization has little consequence for plant heavy metal uptake in contaminated field soils

Dietterich

Gonneau

Casper

2017

Ecological Applications

View full text Add to dashboard Cite

The factors affecting plant uptake of heavy metals from metalliferous soils are deeply important to the remediation of polluted areas. Arbuscular mycorrhizal fungi (AMF), soil-dwelling fungi that engage in an intimate exchange of nutrients with plant roots, are thought to be involved in plant metal uptake as well. Here, we used a novel field-based approach to investigate the effects of AMF on plant metal uptake from soils in Palmerton, PA, USA contaminated with heavy metals from a nearby zinc smelter. Previous studies often focus on one or two plant species or metals, tend to use highly artificial growing conditions and metal applications, and rarely consider metals’ effects on plants and AMF together. In contrast, we examined both direct and AMF-mediated effects of soil concentrations on plant concentrations of 8–13 metals in five wild plant species sampled across a field site with continuous variation in Zn, Pb, Cd, and Cu contamination. Plant and soil metal concentration profiles were closely matched despite high variability in soil metal concentrations even at small spatial scales. However, we observed few effects of soil metals on AMF colonization, and no effects of AMF colonization on plant metal uptake. Manipulating soil chemistry or plant community composition directly may control landscape-level plant metal uptake more effectively than altering AMF communities. Plant species identities may serve as highly local indicators of soil chemical characteristics.

show abstract

Arbuscular Mycorrhiza, Heavy Metal,and Salt Tolerance

Cited by 23 publications

References 64 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

Lead tolerance and phytoremediation potential of Brazilian leguminous tree species at the seedling stage

Arbuscular mycorrhizal colonization has little consequence for plant heavy metal uptake in contaminated field soils

Contact Info

Product

Resources

About