Effects of Escherichia coli pollution on decomposition of aquatic plants: Variation due to microbial community composition and the release and cycling of nutrients

Wu, Jian-yi; Gu, Li; Hua, Zulin; Li, Xiaoqing; Lü, Ying; Chu, Kejian

doi:10.1016/j.jhazmat.2020.123252

Cited by 19 publications

(9 citation statements)

References 53 publications

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“…In addition, abundant taxa occupied broader niches than the rare ones ( Figure 4 ), availing an array of resources supporting their survival. Furthermore, we observed a decrease in the γ-proteobacteria (class of E. coli O157:H7) in the abundant taxa of INV group ( Figures 1A,B ), due to niche competition because of the similar resource preferences with O157:H7, and this might trigger that the taxa better utilize or look out for niches that have not been exploited by O157:H7 ( Mallon et al, 2018 ; Wu et al, 2021 ). Similar results have been communicated for Pseudomonas invasion in soil system, which reduced the relative abundance of resident bacteria which exploited the same resources ( Fliessbach et al, 2009 ; Gómez et al, 2016 ).…”

Section: Discussionmentioning

confidence: 95%

“…On the contrary, more abundant taxa affiliated to Chloroflexi and Verrucomicrobia, which are involved in the carbon cycle ( Bergmann et al, 2011 ; Hug et al, 2013 ) were observed in the INV group ( Figures 1A,B ). Similarly, Wu et al (2021) revealed that E. coli invasion resulted in enhanced relative abundance of Chloroflexi in residual biofilms of emergent aquatic plants. Furthermore, the change in community compositions post-invasion resulted in shifts in the niche structure as well as an increased niche breadth across all samples ( Figure 4 ), which corroborates with the results of Mallon et al (2018) .…”

Section: Discussionmentioning

confidence: 97%

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Divergent Temporal Response of Abundant and Rare Bacterial Communities to Transient Escherichia coli O157:H7 Invasion

et al. 2021

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The release of Escherichia coli (E. coli) O157:H7 has been widely found in various environments, but little is known about the probable influence of the transient E. coli O157:H7 invasion on the native microbial community. Here, we investigated the temporal response of two bacterial biospheres (abundant and rare) of two marsh sediments against E. coli O157:H7 during a 60-day incubation. The diversity of both biospheres showed no evident response to O157:H7 invasion. Temporal factor exhibited greater effects on bacterial variation than O157:H7 invasion. We found that O157:H7 invasion led to an increase in the niche breadth of the bacterial community while decreasing the efficiency of bacterial interaction of the abundant taxa. Moreover, the rare biosphere exhibited enhanced stability against O157:H7 invasion compared with the abundant biosphere, acting as the backbone in resisting external disturbance. Furthermore, each subcommunity assembly showed different randomness levels. The stochastic events were relatively more important in constraining the abundant taxa assembly after invasion. Collectively, E. coli O157:H7 exhibited diverse tangible impact on both biospheres, which unearthed differential responses of abundant and rare biosphere against transient microbial invasion.

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Section: Discussionmentioning

confidence: 95%

Section: Discussionmentioning

confidence: 97%

Divergent Temporal Response of Abundant and Rare Bacterial Communities to Transient Escherichia coli O157:H7 Invasion

et al. 2021

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“…We also collected 5 g of submerged plant leaves from each plant cluster on each sampling date. After sampling, the leaves were transferred into 50 ml sterile centrifuge tubes containing 30 ml of sterile ultrapure water from a water purification system (Direct –Q5 UV; Merck Millipore, Darmstadt, Germany) and treated with ultrasonic waves for 5 min using an ultrasonic cleaner (JP-020S; Skymen, Shenzhen, China) to release the epiphytic bacteria from the leaves ( Xia et al, 2020 ; Wu et al, 2021 ). The eluents were collected and centrifuged at 10,000× g for 5 min to collect the bacterial pellets.…”

Section: Methodsmentioning

confidence: 99%

Comparison of epiphytic and intestinal bacterial communities in freshwater snails (Bellamya aeruginosa) living on submerged plants

Liu

2022

PeerJ

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The combination of submerged plants and snails can combat eutrophication of freshwater systems by suppressing algal growth and assimilating nutrients. By consuming epiphytes, snails can benefit the growth of submerged plants. However, the efficiency of this phytoremediation strategy may depend on the microbes associated with the plants and snails. In this study, we compared the epiphytic bacterial communities on submerged plants (Vallisneria natans and Cabomba caroliniana) and intestinal bacterial communities of a snail, Bellamya aeruginosa, found on these plants using 16S rRNA gene sequencing. Epiphytic bacterial communities were similar between the two plant species and snails shared a high proportion of snail intestinal bacterial OTUs (75%) and genera (85%) with plants they grazed on. However, significant variations of Bray-Curtis distances differentiated epiphytic and intestinal bacterial communities. In addition, between the top 50 genera shared by intestinal and epiphytic bacterial communities, more Spearman correlations were detected within bacterial communities associated with snails than between communities associated with plants (190 vs. 143), and the correlations in epiphytic bacterial networks were more concentrated on certain genera, indicating they possessed distinct bacterial networks. This suggests the bacterial communities associated with snails do not depend strongly on the plant they graze on, which may be important for better understanding the role of snails in aquatic eco-restoration.

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“…Eschericia coli, Staphylococcus aureus, and salmonella thypimurium are commonly found in water [52]. Water media is one distribution media that has much contact with humans.…”

Section: J Anti-microbial Activitymentioning

confidence: 99%

Expansion of Hand Hygiene Compliance and Decreasing Counterfeiting of Sanitation Products in the Era of the COVID-19 through Diversification and Standardization of Alcohol-Based Gel and Wipes Hand Sanitizer

Kusumawati¹,

Setiarso²,

Santoso³

et al. 2022

International Journal on Advanced Science, Engineering and Information Technology

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The increasing cases of infection and the number of deaths triggered by COVID-19 make all prevention and treatment efforts urgent. Increased discipline to maintain hand hygiene must be sought immediately to break the chain of its spread. The availability of alcohol-based hand sanitizer products with various specifications is needed to ensure increased discipline in hand hygiene. This study carried out the diversification of alcohol-based hand sanitizers by varying the active ingredients and preparations. The effect of alcohol on the characteristics and anti-microbial activity of the gel and wipe hand sanitizer products was studied to obtain optimal benefits. The best hand sanitizer characteristics are shown in gel formulation 3 with bioethanol as an active ingredient, which has pH 5.88, good homogeneity, density 0.95 g/cm 3 , viscosity 2783.69 cPs, dispersibility 5.16 cm, adhesion 3.21 s, and dry time 29.27 s. While the best formulation of wipe hand sanitizer produced by formulation 3 made from bioethanol has a pH of 6.14, good homogeneity, density 0.86 g/cm 3 , viscosity 2.812 cPs, spreadability 15.34 cm, adhesion 1.92 s, and dry time 18.20 s. The biological activity test results of the two best hand sanitizer formulations, gel, and wipe preparations, showed good anti-microbial activity against Escherichia coli, Staphylococcus aureus, and Salmonella. In addition, the two preparations of hand sanitizer products were also detected to have good stability characteristics up to 4 weeks of storage time.

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Effects of Escherichia coli pollution on decomposition of aquatic plants: Variation due to microbial community composition and the release and cycling of nutrients

Cited by 19 publications

References 53 publications

Divergent Temporal Response of Abundant and Rare Bacterial Communities to Transient Escherichia coli O157:H7 Invasion

Divergent Temporal Response of Abundant and Rare Bacterial Communities to Transient Escherichia coli O157:H7 Invasion

Comparison of epiphytic and intestinal bacterial communities in freshwater snails (Bellamya aeruginosa) living on submerged plants

Expansion of Hand Hygiene Compliance and Decreasing Counterfeiting of Sanitation Products in the Era of the COVID-19 through Diversification and Standardization of Alcohol-Based Gel and Wipes Hand Sanitizer

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