Assessment of the Removal Capacity, Tolerance, and Anatomical Adaptation of Different Plant Species to Benzene Contamination

Campos, V.; Souto, Lauter Silva; Medeiros, Thales Augusto de Miranda; Toledo, S.P.A.; Sayeg, Isaac Jamil; Ramos, René; Shinzato, Mirian Chieko

doi:10.1007/s11270-014-2033-7

Cited by 10 publications

(6 citation statements)

References 26 publications

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“…In a study by Campos et al, Impatiens walleriana was affected by benzene exposure. Yellow coloration and white patches were observed on the leaves and flowers (30). In this experiment, there was no significant change in R. hyrcanus and D. racemosa stems.…”

Section: Discussionmentioning

confidence: 45%

Phytoremediation of BTEX from indoor air by Hyrcanian plants

Fooladi

Moogouei

Jozi

et al. 2019

Environ Health Eng Manag

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Background: Phytoremediation is one of the available and simple techniques for removing benzene, toluene, ethylbenzene, and xylene (BTEX) from indoor air. This study aimed to evaluate phytoremediation of low concentrations of BTEX by Hyrcanian plants including Ruscus hyrcanus and Danae racemosa. Methods: The test chamber was used to evaluate the removal of BTEX. Benzene, toluene, ethylbenzene, and xylene were injected into the chamber using Gastight syringes (Hamilton) to generate the concentration of 10 (benzene), 20 (toluene), 20 (ethylbenzene), and 50 (xylene) µL/L Results: Ruscus hyrcanus was able to remove BTEX (10, 20, 20, and 50 µL/L) from air after 3 days. D. racemosa could uptake BTEX (10, 20, 20, and 50 µL/L) from air after 4 days. Removal efficiency was calculated based on leaf area and volume of the chamber. R. hyrcanus showed the highest removal efficiency ranged from 8.5075 mg/m3 /h.cm2 for benzene to 86.66 mg/m3 /h.cm2 for xylene. The increase in BTEX phytoremediation was assessed after repeated exposures. A significant phytoremediation efficiency was obtained after the third injection of BTEX to the chamber. Afterwards, the effects of BTEX on anatomical and morphological structure of plants were studied. The results of Photomicrography showed that tissue structures of leaves and stems changed. Study of D. racemosa and R. hyrcanus stems showed that vascular bundles also changed. The development of crystal in vacuole of spongy parenchyma was the main anatomical change of R. hyrcanus and D. racemose compared to the control samples. Conclusion: It can be concluded that R. hyrcanus and D. racemosa can be used for phytoremediation of indoor air pollution.

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Section: Discussionmentioning

confidence: 45%

Phytoremediation of BTEX from indoor air by Hyrcanian plants

Fooladi

Moogouei

Jozi

et al. 2019

Environ Health Eng Manag

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“…Thus, the use of plants as depollution agents has aroused increasing interest and has been evaluated mainly in soils contaminated with trace metals (Chowdhury et al 2015;Houda et al 2016;Kaewtubtim et al 2016), crude oil and its derivatives (Fatima et al 2016;Liao et al 2016), and other organic compounds (Ignatowicz 2016; Lafleur et al 2016). The use of plants that can tolerate and simultaneously extract toxic substances may offer an interesting alternative for in situ decontamination (Campos et al 2014).…”

Section: Resultsmentioning

confidence: 99%

“…According to Campos et al (2014), I. walleriana absorbs benzene through the roots, and is translocated to and accumulated mainly in its aerial portion and then volatilized. This mechanism of the plant may have prevented the large amount of contaminant in the leaf tissues from triggering an intense process of ROS production, which would lead to protein and lipid peroxidation.…”

Section: Histochemical Testmentioning

confidence: 99%

Disturbance response indicators ofImpatiens wallerianaexposed to benzene and chromium

Campos

Lessa

Ramos

et al. 2017

International Journal of Phytoremediation

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The purpose of this study was to evaluate the remediation potential and disturbance response indicators of Impatiens walleriana exposed to benzene and chromium. Numerous studies over the years have found abundant evidence of the carcinogenicity of benzene and chromium (VI) in humans. Benzene and chromium are two toxic industrial chemicals commonly found together at contaminated sites, and one of the most common management strategies employed in the recovery of sites contaminated by petroleum products and trace metals is in situ remediation. Given that increasing interest has focused on the use of plants as depollution agents, direct injection tests and benzene misting were performed on I. walleriana to evaluate the remediation potential of this species. I. walleriana accumulated hexavalent chromium, mainly in the root system (164.23 mg kg), to the detriment of the aerial part (39.72 mg kg), and presented visible damage only at the highest concentration (30 mg L). Unlike chromium (VI), chromium (III) was retained almost entirely by the soil, leaving it available for removal by phytotechnology. However, after the contamination stopped, I. walleriana responded positively to the detoxification process, recovering its stem stiffness and leaf color. I. walleriana showed visible changes such as leaf chlorosis during the ten days of benzene contamination. When benzene is absorbed by the roots, it is translocated to and accumulated in the plant's aerial part. This mechanism the plant uses ensures its tolerance to the organic compound, enabling the species to survive and reproduce after treatment with benzene. Although I. walleriana accumulates minor amounts of hexavalent chromium in the aerial part, this amount suffices to induce greater oxidative stress and to increase the amount of hydrogen peroxide when compared to that of benzene. It was therefore concluded that I. walleriana is a species that possesses desirable characteristics for phytotechnology.

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“…Pollutant-tolerating plants, on the other hand, direct more energy to tolerating toxicity in the air (such as through thick leaves, low special leaf area, high APDP), and less on expanding their leaf area. Thus in plants with large TLA and less tolerance, decreasing the removal capacity of unit leaf area (APDP) also can help them to defend against the toxicity of air pollution (Campos et al 2014). Our summation for APDP over PDP in PGLS (Table 4) explains that the contribution of the plant trait that causes environmental adaptability directly modifies the removal capacity of the unit leaf area and not of the entire plant.…”

Section: Direct Effects Of Plant Trait Variation On the Removal Capacitymentioning

confidence: 97%

Effects of trait variation, environment, and phylogeny on the air pollutant removal capacity of indoor plants

Chen

et al. 2015

Preprint

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Although it is well known that plants have the capacity to remove indoor air pollutants, there has been little research to investigate how this ability is regulated by the environment and evolutionary processes. In this study, we tested the capacity of 58 common indoor plants to remove three specific air pollutants. We also measured the traits, phylogenetic signals, and cultivated environments of these plants to analyze their relationship with the air pollutant removal capacity using Spearman’s correlation, Blomberg’s K test, and phylogenetic generalized least-squares. While we found trait variation had a significant correlation with removal capacity, we did not, however, detect a phylogenetic signal with removal capacity. Trait variation and environmental factors both contributed to the removal capacity in phylogenetic generalized least-squares, but again, without phylogeny. Our results show that plant trait variation, especially total leaf area, could play an important role in plant’s capacity to remove pollutants from indoor air. Moreover, environmental changes, not the phylogeny, could result in trait modification, improving the tolerance and purification capacities of these plants. The findings outlined here will help to explain how plants living with air pollution can adapt as well as the application of plants for the purpose of indoor air purification.

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Assessment of the Removal Capacity, Tolerance, and Anatomical Adaptation of Different Plant Species to Benzene Contamination

Cited by 10 publications

References 26 publications

Phytoremediation of BTEX from indoor air by Hyrcanian plants

Phytoremediation of BTEX from indoor air by Hyrcanian plants

Disturbance response indicators ofImpatiens wallerianaexposed to benzene and chromium

Effects of trait variation, environment, and phylogeny on the air pollutant removal capacity of indoor plants

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