The bacterial community structure in epiphytic biofilm on submerged macrophyte Potamogetom crispus L. and its contribution to heavy metal accumulation in an urban industrial area in Hangzhou

Geng, Ningbo; Xia, Yinfeng; Lu, Debao; Bai, Yu; Zhao, Yufeng; Wang, Hui; Ren, Lingxiao; Xu, Cundong; Hua, Ertian; Sun, Guangmin; Chen, Xiaoyang

doi:10.1016/j.jhazmat.2022.128455

Cited by 21 publications

(7 citation statements)

References 47 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The phytoremediation technique is based on the potential of a variable of species of plants capable to remove, stabilize or kidnap organic or inorganic compounds. It is also one of the effective methods for reducing environmental contamination by HM [11]. Thus, different species have been studied to perform phytoremediation, highlighting the hyperaccumulator species [36].…”

Section: Phytoremediation In Aquatic Environmentsmentioning

confidence: 99%

“…Water pollution by organic and inorganic contaminants represents a current challenge, and the attempt to remove these elements is the object of study of different studies [4]. Several pollutants have recently been analyzed in the literature for their remediation by biological agents, such as pharmaceuticals and cosmetics [5]; polycyclic aromatic hydrocarbons [6]; artificial chemicals [7]; microplastics [8]; agrochemicals and pesticides [9]; primary nutrients [10]; HM [8,[11][12][13][14][15].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Bioremediation of Aquatic Environments Contaminated with Heavy Metals: A Review of Mechanisms, Solutions and Perspectives

et al. 2023

View full text Add to dashboard Cite

The degradation of water resources is related to anthropic actions such as rapid urbanization and industrial and agricultural activities with inefficient land use and occupation management. Water pollution caused by organic and inorganic contaminants represents a current challenge for researchers and humanity. One of the techniques used to remove pollutants from aquatic environments is bioremediation, through the metabolism of living organisms, and especially phytoremediation, with plants as a decontamination agent. Aiming to demonstrate the current mechanisms, solutions, and perspectives regarding bioremediation, and especially phytoremediation in aquatic environments, a literature review was conducted, highlighting the following subjects: heavy metals as contaminants, phytoremediation, evaluation of resistance mechanisms, removal of heavy metals by microorganisms and biofilters of the artificial floating islands type. From the literature research carried out, it can be concluded that alternatives such as macrophyte plants have proved to be an effective and efficient alternative with a high potential for removal of contaminants in aquatic environments, including concomitantly with microorganisms. There was no mechanism well-defined for specific absorption of heavy metals by plants; however, some results can indicate that if there was sporadic contamination with some contaminants, the plants can be indicators with some adsorption and absorption, even with low concentration in the watercourse by the moment of the evaluation. It is necessary to study bioremediation methods, resistance mechanisms, tolerance, and removal efficiencies for each biological agent chosen. Within the bioremediation processes of aquatic environments, the use of macrophyte plants with a high capacity for phytoremediation of metals, used combined with bioremediating microorganisms, such as biofilters, is an interesting perspective to remove contaminants.

show abstract

Section: Phytoremediation In Aquatic Environmentsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Bioremediation of Aquatic Environments Contaminated with Heavy Metals: A Review of Mechanisms, Solutions and Perspectives

et al. 2023

View full text Add to dashboard Cite

show abstract

“…Together with extracellular polymeric substances, biofilms help in PTEs remediation by surface precipitation and ion exchange process (D'Acunto et al, 2016;Hu et al, 2019;Li and Yu, 2014). Geng et al (2022) reported that Pseudomonas spp. had significantly higher Cr accumulation (8.3 mg kg − 1 ) than Cu (3.9 mg kg − 1 ).…”

Section: Tablementioning

confidence: 99%

Roles and significance of chelating agents for potentially toxic elements (PTEs) phytoremediation in soil: A review

Zulkernain

Uvarajan

2023

Journal of Environmental Management

View full text Add to dashboard Cite

“…For example, Fan et al (2021) found that most metal (loid) concentrations (apart from Hg and Cr) were greater in epiphytic bio lms than those in submerged macrophytes (Potamogeton lucens L. and Myriophyllum verticillatum L.). Besides, Geng et al (2022) explored the bacterial community structure in epiphytic bio lm on Potamogetom crispus L. and its contribution to heavy metal (Cu and Cr) accumulation in an urban industrial area in Hangzhou. The ndings indicated that the epiphytic bio lm had a bene cial effect on metal bioaccumulation and this ability increased with the hydrodynamic forces.…”

Section: Introductionmentioning

confidence: 99%

The impacts of cadmium exposure on epiphytic bacterial communities and water quality in mesocosmic wetlands.

Chen,

Adjei,

Samwini

et al. 2024

Preprint

View full text Add to dashboard Cite

The damaging magnitudes of heavy metal pollution on freshwater ecosystems are well known, though research on the specific impacts of cadmium (Cd) on water quality and microbial communities in epiphytic biofilms is lacking. In this study, high-throughput sequencing and Scanning Electron Microscopy (SEM) were used to explore the effects of Cd on water quality and bacterial morphology, biodiversity, interactions, and ecological functions in epiphytic biofilms affixed to submerged plants that were natural and synthetic (Vallisneria natans, Potamogeton maackianus, and artificial macrophytes) in constructed wetlands. The results showed that Cd exposure significantly reduced the ability of natural and artificial plants to remove total nitrogen (TN) (5.7-50%), total phosphorus (TP) (12.5-97.1%), and chemical oxygen demand (COD) (9.45-21.8%), and affected the morphology of epiphytic bacteria. The bacterial β-diversity indices were significantly affected by Cd exposure, whereas bacterial α-diversity revealed a reverse trend. Notwithstanding Cd application induced the fluctuation (increase/decrease) in bacterial composition dynamics, but the relative abundance of Proteobacteria and Cyanobacteria spiked from 11.3-57.2% and 6.08- 94.35 %, respectively, in natural and artificial plants. Besides, Cd loading disturbed all bacterial network structures, with interactions particularly vulnerable in P. maackianus. Our study demonstrated that Cd exposure alters the bacterial diversity, food web structure, and predicted metabolic functions such as metabolism, translation, cell motility, signal transduction, membrane transport, and biodegradation of xenobiotics in epiphytic bacterial biofilms. These findings highlight the detrimental effects of Cd on epiphytic bacterial communities and nutrient removal in constructed wetlands.

show abstract

The bacterial community structure in epiphytic biofilm on submerged macrophyte Potamogetom crispus L. and its contribution to heavy metal accumulation in an urban industrial area in Hangzhou

Cited by 21 publications

References 47 publications

Bioremediation of Aquatic Environments Contaminated with Heavy Metals: A Review of Mechanisms, Solutions and Perspectives

Bioremediation of Aquatic Environments Contaminated with Heavy Metals: A Review of Mechanisms, Solutions and Perspectives

Roles and significance of chelating agents for potentially toxic elements (PTEs) phytoremediation in soil: A review

The impacts of cadmium exposure on epiphytic bacterial communities and water quality in mesocosmic wetlands.

Contact Info

Product

Resources

About