Effects of flooding and aging on phytoremediation of typical polycyclic aromatic hydrocarbons in mangrove sediments by Kandelia obovata seedlings

Li, Ruilong; Liu, Beibei; Zhu, Yaxian; Zhang, Yong

doi:10.1016/j.ecoenv.2016.02.002

Cited by 16 publications

(4 citation statements)

References 40 publications

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“…Similar phenomena were also observed in salt-stressed plants, where increased salt stress led to a significant reduction in plant Pn and Tr as well as an increase in Ci [23,64]. It has been reported that leaves with a higher stomatal aperture exhibit elevated gs and Tr [53]. However, no significant change was observed in Tr after BDE-47 exposure in this study, which may be attributed to the extensive leaf sclerification and enhanced water retention capacity of the plants.…”

Section: Discussionsupporting

confidence: 84%

“…The plants were continuously cultivated with natural light and ventilation while adding salt water with a salinity of 10‰ every 5 d to maintain water stability. At the 30th day, the position of the basins was changed over to avoid the effects of light direction [53]. After 60 d of exposure, the gas exchange parameters and fluorescence parameters of the living leaves were first measured (methods are described below).…”

Section: Plant Exposure and Samplingmentioning

confidence: 99%

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2,2′,4,4′-Tetrabromodiphenyl Ether (BDE-47) at Environmental Levels Influenced Photosynthesis in the Mangrove Species Kandelia obovata

Xue,

Shi,

Xiang

et al. 2024

Toxics

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2,2′,4,4′-tetra-bromodiphenytol ether (BDE-47) is one of the ubiquitous organic pollutants in mangrove sediments. To reveal the toxic effects of BDE-47 on mangrove plants, the mangrove species Kandelia obovate was used to investigate the photosynthetic capacity effects and the molecular mechanisms involved after BDE-47 exposure at environment-related levels (50, 500, and 5000 ng g−1 dw). After a 60-day exposure, the photosynthetic capacity was inhibited in K. obovata seedlings, and a decrease in the stomatal density and damage in the chloroplast ultrastructure in the leaves were found. Transcriptome sequencing showed that, following exposure to BDE-47, gene expression in photosynthesis-related pathways was predominantly suppressed in the leaves. The bioinformatics analysis indicated that BDE-47 exerts toxicity by inhibiting photosystem I activity and chlorophyll a/b-binding protein-related genes in the leaves of K. obovata. Thus, this study provides preliminary theoretical evidence for the toxic mechanism effect of BDE-47 on photosynthesis in mangrove species.

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Section: Discussionsupporting

confidence: 84%

Section: Plant Exposure and Samplingmentioning

confidence: 99%

2,2′,4,4′-Tetrabromodiphenyl Ether (BDE-47) at Environmental Levels Influenced Photosynthesis in the Mangrove Species Kandelia obovata

Xue,

Shi,

Xiang

et al. 2024

Toxics

View full text Add to dashboard Cite

show abstract

“…Flooding, Aging, Light and Temperature Enzyme activity rises when the environment is flooded. As a result, in flooded or aged mangrove sediment, the percentage of PAHs removed from the contaminated site is higher [205]. Microorganisms degrade the majority of the contaminant in this situation [206].…”

Section: Climate Considerationsmentioning

confidence: 99%

“…The accessibility of a soil-bound chemical for absorption and possible toxicity that can be chemically absorbed to reach an organism's systemic circulation is referred to as bioavailability [224]. Phyto-availability of toxic metals can be improved with two conventional techniques: the use of synthetic chelates and a lowering of soil pH [205,[225][226][227][228][229]. To lower the pH of the soil, A unique technique is employed; the soil is treated with acids or acid-producing fertilizers [229][230][231][232].…”

Section: Common Approaches To Increase Toxic Metal Bioavailabilitymentioning

confidence: 99%

Phytoremediation of Toxic Metals: A Sustainable Green Solution for Clean Environment

Babu¹,

Hossain

Rahman

et al. 2021

Applied Sciences

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Contamination of aquatic ecosystems by various sources has become a major worry all over the world. Pollutants can enter the human body through the food chain from aquatic and soil habitats. These pollutants can cause various chronic diseases in humans and mortality if they collect in the body over an extended period. Although the phytoremediation technique cannot completely remove harmful materials, it is an environmentally benign, cost-effective, and natural process that has no negative effects on the environment. The main types of phytoremediation, their mechanisms, and strategies to raise the remediation rate and the use of genetically altered plants, phytoremediation plant prospects, economics, and usable plants are reviewed in this review. Several factors influence the phytoremediation process, including types of contaminants, pollutant characteristics, and plant species selection, climate considerations, flooding and aging, the effect of salt, soil parameters, and redox potential. Phytoremediation’s environmental and economic efficiency, use, and relevance are depicted in our work. Multiple recent breakthroughs in phytoremediation technologies are also mentioned in this review.

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Characterization of Hydrocarbon-Degrading Bacteria in Constructed Wetland Microcosms Used to Treat Crude Oil Polluted Water

Hashmat

Afzal

Fatima

et al. 2018

Bull Environ Contam Toxicol

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Effects of flooding and aging on phytoremediation of typical polycyclic aromatic hydrocarbons in mangrove sediments by Kandelia obovata seedlings

Cited by 16 publications

References 40 publications

2,2′,4,4′-Tetrabromodiphenyl Ether (BDE-47) at Environmental Levels Influenced Photosynthesis in the Mangrove Species Kandelia obovata

2,2′,4,4′-Tetrabromodiphenyl Ether (BDE-47) at Environmental Levels Influenced Photosynthesis in the Mangrove Species Kandelia obovata

Phytoremediation of Toxic Metals: A Sustainable Green Solution for Clean Environment

Characterization of Hydrocarbon-Degrading Bacteria in Constructed Wetland Microcosms Used to Treat Crude Oil Polluted Water

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