Uptake of cadmium by the invasive perennial weeds Ranunculus repens and Geranium robertianum under laboratory conditions

O’Keeffe, Juliette; Bendell-Young, Leah I.

doi:10.1039/b202667h

Cited by 6 publications

(1 citation statement)

References 14 publications

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“…O’Keeffe & Bendell‐Young (2002) compared Cd accumulation over a 3‐week period in G. robertianum and Ranunculus repens . Prior to Cd exposure, R. repens contained significantly greater concentration of Cd in leaf and stem than G. robertianum but there was no significant difference between the Cd concentration in the roots of the two species.…”

Section: Structure and Physiologymentioning

confidence: 99%

Geranium robertianum L.

Tofts¹

2004

Journal of Ecology

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Section: Structure and Physiologymentioning

confidence: 99%

Geranium robertianum L.

Tofts¹

2004

Journal of Ecology

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The Effect of Temperature on the Accumulation of Cadmium, Copper, Zinc, and Lead by Scirpus acutus and Typha latifolia: A Comparative Analysis

Bendell

2010

Water Air Soil Pollut

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Wetland plants have a capacity for metal sequestration and have been used to remediate such environmental contaminants. How this capacity will be affected by a warming environment is not wellknown. Our objective was to identify the effect of small environmentally realistic increases in temperature on metal (cadmium, zinc, lead, and copper) accumulation in Typha latifolia as compared with Scirpus acutus. These common wetland plant species were grown in metal-contaminated sediments at 13°C, 16°C, and 18°C for 3 months to determine the effect of environmentally realistic temperatures on metal accumulation. Cd 109 was used as a radiotracer to study the effect of temperature on uptake kinetics. Growth of the two wetland plants differed markedly; S. acutus displayed linear growth reaching a maximum height of ca. 100 cm; by contrast, T. latifolia grew to ca. 40 cm by day 60 with no further growth occurring over the remainder of the 105-day growth period. S. acutus accumulated more cadmium, lead, and zinc from contaminated sediments than T. latifolia, but only within roots and rhizomes. Although not significant, uptake of cadmium, lead, and zinc by both plants was enhanced under warmer conditions and was most pronounced in S. acutus.This was supported by the radiotracer studies which indicated that under the higher temperatures, there was increased rates of Cd 109 uptake by shoots of S. acutus. By contrast, temperature did not affect Cd 109 uptake rate constants in T. latifolia. S. acutus appears to be more effective at sequestering metals from contaminated sediments; this species as compared to T. latifolia may also be more affected by a warming climate. In the design of wetlands for metal remediation, differences in how these two plants sequester metals from their environment should be considered.

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Geranium robertianum L. tolerates various soil types burdened with heavy metals

Hasanović,

Čakar,

Ahatović Hajro

et al. 2023

Environ Sci Pollut Res

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Heavy metals (HMs) are crucial micronutrients for the growth and development of plants, however, human activities such as mining, smelting, and fertilizers have led to toxic levels of HMs in soil. Fortunately, many plant species have developed incredible adaptive mechanisms to survive and thrive in such harsh environments. As a widespread and ruderal species, Geranium robertianum L. inhabits versatile soil types, both polluted and unpolluted. Considering the ubiquity of G. robertianum, the study aimed to determine whether geographically distant populations can tolerate HMs.We collected soil and plant samples from serpentine, an anthropogenic heavy metal contaminated, and a nonmetalliferous site to study the physiological state of G. robertianum. HMs in soil and plants were determined using ame atomic absorption spectrometry. Spectrophotometric methods were used to measure the total content of chlorophylls a and b, total phenolics, phenolic acids, avonoids, and proline. Principal component analysis (PCA) was used to investigate the potential correlation between HMs concentrations gathered from various soil types and plant samples and biochemical data acquired for plant material. A statistically signi cant difference was observed for all localities regarding secondary metabolite parameters. A positive correlation between Ni and Zn in soil and Ni and Zn in plant matter was observed (p<0.0005) indicating higher absorption. Regardless of high concentrations of heavy metals in investigated soils, G. robertianum displayed resilience and was capable of thriving. These results may be ascribed to several protective mechanisms that allow G. robertianum to express normal growth and development and act as a pioneer species.

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Uptake of cadmium by the invasive perennial weeds Ranunculus repens and Geranium robertianum under laboratory conditions

Cited by 6 publications

References 14 publications

Geranium robertianum L.

Geranium robertianum L.

The Effect of Temperature on the Accumulation of Cadmium, Copper, Zinc, and Lead by Scirpus acutus and Typha latifolia: A Comparative Analysis

Geranium robertianum L. tolerates various soil types burdened with heavy metals

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