Spatial and temporal changes in bacterial community structure in adjacent waters of Dagu River estuary of Jiaozhou Bay (China) revealed by high-throughput sequencing

Yang, Zhibo; Wang, Jing; Shang, Congcong; Yang, Shijie; Hao, Ya; Tang, Xuexi; Xiao, Hui

doi:10.1016/j.rsma.2022.102302

Cited by 3 publications

(2 citation statements)

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“…Planktons come in a variety of sizes and forms. Planktons can be classified under three classes: plants, animals, and bacteria (phytoplanktons, zooplanktons, and bacterioplanktons) …”

Section: Introductionmentioning

confidence: 99%

“…Planktons can be classified under three classes: plants, animals, and bacteria (phytoplanktons, zooplanktons, and bacterioplanktons). 8 Animal planktons (zooplanktons) are ranged from protozoans and rotifers as small microscopic organisms to macroplanktons of larger size, including fish larvae, shrimp, and jellyfish. Macroplanktons are not like phytoplanktons, light-independent for nutrition.…”

Section: Introductionmentioning

confidence: 99%

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Growth Inhibition of Sulfate-Reducing Bacteria during Gas and Oil Production Using Novel Schiff Base Diquaternary Biocides: Synthesis, Antimicrobial, and Toxicological Assessment

et al. 2022

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Upstream crude oil production equipment is always exposed to destruction damagingly which is caused by sulfate-reducing bacterium (SRB) activities that produce H 2 S gas, which leads to increased metal corrosion (bio-fouling) rates and inflicts effective infrastructure damage. Hence, oil and gas reservoirs must be injected with biocides and inhibitors which still offer the foremost protection against harmful microbial activity. However, because of the economic and environmental risks associated with biocides, the oil and gas sectors improve better methods for their usage. This work describes the synthesis and evaluation of the biological activities as the cytotoxicity and antimicrobial properties of a series of diquaternary cationic biocides that were studied during the inhibition of microbial biofilms. The prepared diquaternary compound was synthesized by coupling vanillin and 4-aminoantipyrene to achieve the corresponding Schiff base, followed by a quaternization reaction using 1,6-bromohexane, 1,8bromooctane, and 1,12-bromododecane. The increase of their alkyl chain length from 6 to 12 methylene groups increased the obtained antimicrobial activity and cytotoxicity. Antimicrobial efficacies of Q1−3 against various biofilm-forming microorganisms, including bacteria and fungi, were examined utilizing the diameter of inhibition zone procedures. The results revealed that cytotoxic efficacies of Q1−3 were significantly associated mainly with maximum surface excess and interfacial characteristics. The cytotoxic efficiencies of Q1−3 biocides demonstrated promising results due to their comparatively higher efficacies against SRB. Q3 exhibited the highest cytotoxic biocide against the gram +ve, gram −ve, and SRB species according to the inhibition zone diameter test. The toxicity of the studied microorganisms depended on the nature and type of the target microorganism and the hydrophobicity of the biocide molecules. Cytotoxicity assessment and antimicrobial activity displayed increased activity by the increase in their alkyl chain length.

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“…Planktons come in a variety of sizes and forms. Planktons can be classified under three classes: plants, animals, and bacteria (phytoplanktons, zooplanktons, and bacterioplanktons) …”

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%