Periphyton reduces cyanobacterial blooms by promoting potentially cyanobactericidal bacteria

Le, Ve Van; Ko, So-Ra; Kang, Mingyeong; Shin, Yuna; Lim, Byung-Jin; Kang, Yoon-Ho; Oh, Hee‐Mock; Ahn, Chi‐Yong

doi:10.1007/s10811-023-02949-6

Cited by 8 publications

(2 citation statements)

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“…The excessive growth of cyanobacteria, termed cyanobacterial blooms, negatively affects drinking water quality and disrupts ecosystems [14]. Periphyton, a complex microbiota composed of algae, bacteria and fungi, has been considered a promising approach to mitigate cyanobacterial blooms by altering the bacterial community [15]. As part of a study investigating how periphyton controls cyanobacterial blooms, strain HBC34 T was isolated from periphyton, and its taxonomic position was identified.…”

Section: Introductionmentioning

confidence: 99%

Sphingobium cyanobacteriorum sp. nov., isolated from fresh water

Le,

Ko,

Kim

et al. 2024

International Journal of Systematic and Evolutionary Microbiology

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A novel Gram-stain-negative, yellow-pigmented, short rod-shaped bacterial strain, HBC34T, was isolated from a freshwater sample collected from Daechung Reservoir, Republic of Korea. The results of 16S rRNA gene sequence analysis indicated that HBC34T was affiliated with the genus Sphingobium and shared the highest sequence similarity to the type strains of Sphingobium vermicomposti (98.01 %), Sphingobium psychrophilum (97.87 %) and Sphingobium rhizovicinum (97.59 %). The average nucleotide identity (ANI) and digital DNA–DNA hybridisation (dDDH) values between HBC34T and species of the genus Sphingobium with validly published names were below 84.01 and 28.1 %, respectively. These values were lower than the accepted species-delineation thresholds, supporting its recognition as representing a novel species of the genus Sphingobium. The major fatty acids (>10 % of the total fatty acids) were identified as summed feature 8 (C18 : 1ω7c and/or C18 : 1ω6c) and summed feature 3 (C16 : 1ω7c and/or C16 : 1ω6c). The main polar lipids were phosphatidylglycerol, phosphatidylcholine, phosphatidylethanolamine, two phospholipids and two unidentified polar lipids. The respiratory quinone was Q-10. The genomic DNA G+C content of HBC34T was 64.04 %. The polyphasic evidence supports the classification of HBC34T as the type strain of a novel species of the genus Sphingobium, for which the name Sphingobium cyanobacteriorum sp. nov is proposed. The type strain is HBC34T (= KCTC 8002T= LMG 33140T).

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Section: Introductionmentioning

confidence: 99%

Sphingobium cyanobacteriorum sp. nov., isolated from fresh water

Le,

Ko,

Kim

et al. 2024

International Journal of Systematic and Evolutionary Microbiology

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“…Eutrophication, a common issue caused by excessive input of nitrogen and phosphorus, accelerates the proliferation of cyanobacteria [14]. Periphyton is a complex microbiota that can inhibit the growth of cyanobacteria by competing for nutrients [15], releasing allelochemicals [16] and potentially promoting cyanobactericidal bacteria [17]. Hanging bio-contactor (HBC) was considered a supporting material for growing periphyton due to its low cost and ease of handling [18].…”

Section: Introductionmentioning

confidence: 99%

Novosphingobium cyanobacteriorum sp. nov., isolated from a eutrophic reservoir during the Microcystis bloom period

Kang,

Van Le,

et al. 2023

International Journal of Systematic and Evolutionary Microbiology

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A novel Gram-stain-negative, aerobic and rod-shaped bacterial strain, HBC54T, was isolated from periphyton during a Microcystis bloom. Based on the results of the 16S rRNA gene sequence analysis, strain HBC54T was closely related to Novosphingobium aerophilum 4Y4T (98.36 %), Novosphingobium aromaticivorans DSM 12444T (98.08 %), Novosphingobium huizhouense c7T (97.94 %), Novosphingobium percolationis c1T (97.65 %), Novosphingobium subterraneum DSM 12447T (97.58 %), Novosphingobium olei TW-4T (97.58 %) and Novosphingobium flavum UCT-28T (97.37 %). The average nucleotide identity and digital DNA–DNA hybridization values between HBC54T and its related type stains were below 78.97 and 23.7 %, which are lower than the threshold values for species delineation. The major fatty acids (>10.0 %) were identified as C14 : 0 2-OH, summed feature 3 (C16 : 1 ω7c and/or C16 : 1 ω6c) and summed feature 8 (C18 : 1 ω7c and/or C18 : 1 ω6c) and the respiratory quinone was ubiquinone Q-10. The main polar lipids detected in the strain were phosphatidylethanolamine, phosphatidylglycerol, phosphatidylcholine, diphosphatidylglycerol and three unidentified phospholipids. The genomic DNA G+C content was 64.8 mol%. Strain HBC54T is considered to represent a novel species within the genus Novosphingobium , for which the name Novosphingobium cyanobacteriorum sp. nov. is proposed. The type strain is HBC54T (=KCTC 92033T=LMG 32427T).

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