Comparison of the suitability of two lichen species and one higher plant for monitoring airborne heavy metals

Aprile, Giuseppa Grazia; Salvatore, M. Di; Carratù, G.; Mingo, Antonio; Carafa, A. M.

doi:10.1007/s10661-009-0796-x

Cited by 24 publications

(13 citation statements)

References 23 publications

(32 reference statements)

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“…Previous research has found a high correlation between heavy metals in air and automobile traffic in the urban parts of Loja [12,46]. A similar pattern has been found in many other areas of the world, that is, that air pollution caused by heavy metal deposition generally tends to be higher in urban zones with more traffic, than in rural areas with less traffic [1,16,26,33,51] The accumulation of Cd, Cu, Pb and Mn in Parmotrema arnoldii and Tillandsia usneoides tissues showed a similar pattern, with more heavy metals in urban areas than in nearby forest controls. The strong enrichment of heavy metals at the urban sites of Loja is not unexpected, particularly enrichment of lead from particle deposition as a result of an increased volume of traffic [12,46].…”

Section: Discussionsupporting

confidence: 67%

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Lichens and Bromeliads as Bioindicators of Heavy Metal Deposition in Ecuador

et al. 2019

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We evaluated heavy metal deposition in Parmotrema arnoldii and Tillandsia usneoides in response to air pollution in Loja city, Ecuador. We assessed heavy metal (cadmium, copper, manganese, lead and zinc) content in these organisms at nine study sites inside Loja city and three control sites in nearby forests. Concentrations of all studied heavy metals (i.e., cadmium (Cd), copper (Cu), lead (Pb), manganese (Mn) and zinc (Zn)) were highest in downtown Loja. Our study confirms that passive monitoring using lichens and/or bromeliads can be an efficient tool to evaluate heavy metal deposition related to urbanization (e.g., vehicle emissions). We recommend these organisms to be used in cost-effective monitoring of air pollution in tropical countries.

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Section: Discussionsupporting

confidence: 67%

“…[29]), and species in the genus Parmotrema A. Massal. [30][31][32][33][34][35]), are effective indicators of heavy metal deposition. Moreover, epiphytic vascular plants, particularly bromeliads in the genus Tillandsia L., are efficient bioaccumulators of heavy metal deposition [16,[36][37][38].…”

Section: Of 10mentioning

confidence: 99%

Lichens and Bromeliads as Bioindicators of Heavy Metal Deposition in Ecuador

et al. 2019

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“…Based on this, an index of relative uptake rate (RUR, Equation (1)) was calculated according to Aprile et al [37] and used to estimate the daily rate of nutrient accumulation(mg per mg of existing nutrient element per each day).…”

Section: Plant Sampling and Measurementsmentioning

confidence: 99%

“…After transplanting, salinity stress immediately and significantly affected the relative growth rate and dry matter accumulation (DAS 30-37; Table 1). The relative growth rate of plants (RGR Plant ) and the relative growth rate of roots (RGR Root ) of transplanted seedlings (DAS [30][31][32][33][34][35][36][37] Sustainability 2015, 7,[15967][15968][15969][15970][15971][15972][15973][15974][15975][15976][15977][15978][15979][15980][15981] were significantly reduced due to increasing salinity ( Figure 1A,B). However, in inoculated (AMF+) plants, RGR Plant was significantly reduced under severe salt stress (100 mM¨NaCl) only, while in non-inoculated (AMF´) plants both moderate (50 mM¨NaCl) and severe salinity caused a significant reduction of RGR Plant .…”

Section: Growthmentioning

confidence: 99%

AMF Inoculation Enhances Growth and Improves the Nutrient Uptake Rates of Transplanted, Salt-Stressed Tomato Seedlings

2015

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Abstract:The study aimed to investigate the effects of commercially available AMF inoculate (Glomus sp. mixture) on the growth and the nutrient acquisition in tomato (Solanumlycopersicum L.) plants directly after transplanting and under different levels of salinity. Inoculated (AMF+) and non-inoculated (AMF´) tomato plants were subjected to three levels of NaCl salinity (0, 50, and 100 mM¨NaCl). Seven days after transplanting, plants were analyzed for dry matter and RGR of whole plants and root systems. Leaf tissue was analyzed for mineral concentration before and after transplanting; leaf nutrient content and relative uptake rates (RUR) were calculated. AMF inoculation did not affect plant dry matter or RGR under fresh water-irrigation. The growth rate of AMF´plants did significantly decline under both moderate (77%) and severe (61%) salt stress compared to the fresh water-irrigated controls, while the decline was much less (88% and 75%,respectively)and statistically non-significant in salt-stressed AMF+ plants. Interestingly, root system dry matter of AMF+ plants (0.098 g plant -1 ) remained significantly greater under severe soil salinity compared to non-inoculated seedlings (0.082 g plant -1 ). The relative uptake rates of N, P, Mg, Ca, Mn, and Fe were enhanced in inoculated tomato seedlings and remained higher under (moderate) salt stress compared to AMF´plants This study suggests that inoculation with commercial AMF during nursery establishment contributes to alleviation of salt stress by maintaining a favorable nutrient profile. Therefore, nursery inoculation seems to be a viable solution to attenuate the effects of increasing soil salinity levels, especially in greenhouses with low natural abundance of AMF spores.

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“…It has been found that lichens are able to accumulate various metals (cadmium, lead, zinc, etc. ) at high levels (Garty 2001, Aprile et al 2010. Ever since the industrial revolution in the 1800s lichens have been recognized as bioindicators of air quality and, nowadays, they are commonly used to indicate the presence of air pollutants.…”

Section: Introductionmentioning

confidence: 99%

The Impact of Cadmium on Photosynthetic Performance and Secondary Metabolites in the Lichens Parmelia sulcata, Flavoparmelia caperata and Evernia prunastri

Maslać¹,

Maslać²,

Tkalec³

2016

Acta Botanica Croatica

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-Lichens are one of the most common air quality bioindicators. Airborne heavy metal pollution causes various physiological changes in lichens, but sensitivity to metal pollution is species specifi c. In this research, three lichen species (Parmelia sulcata, Flavoparmelia caperata and Evernia prunastri) were exposed to cadmium (50 mg L -1 ) in laboratory conditions. Photosynthetic effi ciency of photosystem II and content of secondary metabolites were determined after one, three and eight days of exposure. In all investigated species treatment of lichen thalli with cadmium signifi cantly changed F v /F m and R Fd only after eight days of exposure. Quantifi cation of metabolites showed a decreased content of the medullary depsidones salazinic acid (in P. sulcata) and protocetraric acid (in F. caperata) but increased content of cortical depside atranorin (in P. sulcata) and dibenzofurane usnic acid (in F. caperata) after cadmium exposure. However, no changes in secondary metabolites were found in E. prunastri. Results show that investigated species are relatively resistant to short-term cadmium-exposure and that secondary metabolites could have an important role in the protection of primary metabolism from negative cadmium impacts, at least in some species.

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Comparison of the suitability of two lichen species and one higher plant for monitoring airborne heavy metals

Cited by 24 publications

References 23 publications

Lichens and Bromeliads as Bioindicators of Heavy Metal Deposition in Ecuador

Lichens and Bromeliads as Bioindicators of Heavy Metal Deposition in Ecuador

AMF Inoculation Enhances Growth and Improves the Nutrient Uptake Rates of Transplanted, Salt-Stressed Tomato Seedlings

The Impact of Cadmium on Photosynthetic Performance and Secondary Metabolites in the Lichens Parmelia sulcata, Flavoparmelia caperata and Evernia prunastri

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