Control of the red tide dinoflagellate Cochlodinium polykrikoides by ozone in seawater

Shin, Minjung; Lee, Hye-Jin; Kim, Min‐Sik; Park, Noh-Back; Lee, Chang Ha

doi:10.1016/j.watres.2016.11.050

Cited by 16 publications

(4 citation statements)

References 44 publications

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“…Currently, the control methods of ichthyotoxic red tides have become a research hotspot of the marine ecological environment in the global region. The physical and chemical methods of controlling ichthyotoxic red tides are immediate [ 28 , 29 , 30 ]; however, they have the disadvantage of being costly or not available on a large scale, as well as posing a risk of potential secondary pollution to the marine ecological environment. Research on the biological control methods of ichthyotoxic red tides such as the feeding of marine zooplankton [ 31 ], co-culture of fish with macroalgae and associated bacteria [ 32 ], addition of algae-inhibiting microorganisms [ 33 ] and antialgal compounds from marine macroalgae [ 11 , 15 ], etc., has gained attention and gradually developed.…”

Section: Discussionmentioning

confidence: 99%

Purification and Screening of the Antialgal Activity of Seaweed Extracts and a New Glycolipid Derivative against Two Ichthyotoxic Red Tide Microalgae Amphidinium carterae and Karenia mikimotoi

Sun,

Li,

et al. 2024

Marine Drugs

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Ichthyotoxic red tide is a problem that the world is facing and needs to solve. The use of antialgal compounds from marine macroalgae to suppress ichthyotoxic red tide is considered a promising biological control method. Antialgal substances were screened and isolated from Bangia fusco-purpurea, Gelidium amansii, Gloiopeltis furcate, Hizikia fusifarme, Laminaria japonica, Palmaria palmata, and Sargassum sp. to obtain new materials for the development of algaecides against ichthyotoxic red tide microalgae using bioactivity-guided isolation methods. The fractions of seven macroalgae exhibited selective inhibitory activities against Amphidinium carterae and Karenia mikimotoi, of which the ethyl acetate fractions had the strongest and broadest antialgal activities for the two tested red tide microalgae. Their inhibitory effects on A. carterae and K. mikimotoi were even stronger than that of potassium dichromate, such as ethyl acetate fractions of B. purpurea, H. fusifarme, and Sargassum sp. Thin-layer chromatography and ultraviolet spectroscopy were further carried out to screen the ethyl acetate fraction of Sargassum sp. Finally, a new glycolipid derivative, 2-O-eicosanoyl-3-O-(6-amino-6-deoxy)-β-D-glucopyranosyl-glycerol, was isolated and identified from Sargassum sp., and it was isolated for the first time from marine macroalgae. The significant antialgal effects of 2-O-eicosanoyl-3-O-(6-amino-6-deoxy)-β-D-glucopyranosyl-glycerol on A. carterae and K. mikimotoi were determined.

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Section: Discussionmentioning

confidence: 99%

Purification and Screening of the Antialgal Activity of Seaweed Extracts and a New Glycolipid Derivative against Two Ichthyotoxic Red Tide Microalgae Amphidinium carterae and Karenia mikimotoi

Sun,

Li,

et al. 2024

Marine Drugs

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“…Physical methods, such as algae fishing, ultrasonic algal killing, UV irradiation, and pumping mixed water layers, have the advantage of quick results [10][11][12][13], but their labor costs are extremely high; therefore, they can only be used in small bodies of water. Chemical methods based on chemical algaecides and flocculants are cost-effective but can also cause secondary environmental pollution [14][15][16][17]. Biological control is an environmentally friendly approach that reduces the dominant position of harmful algae in the aquatic environment through predation, parasitism, and competition, thereby achieving a new ecological balance [18][19][20].…”

Section: Introductionmentioning

confidence: 99%

Visible-Light-Activated Carbon Dot Photocatalyst for ROS-Mediated Inhibition of Algae Growth

Song,

Xu,

et al. 2023

IJMS

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The growing occurrence of detrimental algal blooms resulting from industrial and agricultural activities emphasizes the urgency of implementing efficient removal strategies. In this study, we have successfully synthesized stable and biocompatible carbon dots (R-CDs) capable of generating reactive oxygen species (ROS) upon exposure to natural light irradiation. Phaeocystis globosa Scherffel (PGS) was selected as a representative model for conducting anti-algal experiments. Remarkably, in the presence of R-CDs, the complete eradication of harmful algae within a simulated light exposure period of 27 h was achieved. Furthermore, fluorescence lifetime imaging microscopy (FLIM) was first employed to study the physiological processes involved in the oxidative stress induced by PGS when subjected to ROS attack. The findings of this study demonstrate the potential of R-CDs as a highly promising anti-algal agent. This elucidation of the mechanism contributes to a comprehensive understanding of the efficacy and effectiveness of such agents in combating algal growth, further inspiring the development of other anti-algal agents.

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“…Enormous efforts have been made to develop methods for preventing the proliferation of C. polykrikoides . Physico–chemical methods using ozone [14], yellow clay [15] and aminoclay [16] can mitigate C. polykrikoides . These approaches, however, are costly and may cause non-target toxicity.…”

Section: Introductionmentioning

confidence: 99%

Cochlodiniinecator piscidefendens gen. nov., sp. nov., an algicidal bacterium against the ichthyotoxic dinoflagellate Cochlodinium polykrikoides

Lee

et al. 2021

International Journal of Systematic and Evolutionary Microbiology

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Harmful algal blooms caused by Cochlodinium polykrikoides result in enormous economic damage to the aquaculture industry. Biological control methods have attracted wide attention due to their environmental-friendliness. In this study, a novel algicidal bacterium, designated strain M26A2MT, was determined for its taxonomic position and was evaluated for its potential to mitigate C. polykrikoides blooms. Strain M26A2MT exhibited the highest 16S rRNA gene sequence similarity to the type strains of Planktotalea lamellibrachiae (97.3%), Halocynthiibacter namhaensis (97.2%), Pseudohalocynthiibacter aestuariivivens (96.8%) and Halocynthiibacter arcticus (96.4%) in the family Rhodobacteraceae . The predominant fatty acids were C10 : 0 3-OH and summed feature 8 (comprising C18 : 1 ω7c and/or C18 : 1 ω6c). The major polar lipids were phosphatidylcholine, phosphatidylglycerol, phosphatidylethanolamine, one unidentified aminolipid and three unidentified lipids. Q-10 was the respiratory quinone. Strain M26A2MT exerted significant algicidal activity against C. polykrikoides cells by destroying the membrane integrity and the photosynthetic system. Our findings suggest that strain M26A2MT shows a high potential to control outbreaks of C. polykrikoides. Based on the polyphasic characterization, strain M26A2MT is considered to represent a novel species within a novel genus of the family Rhodobacteraceae , for which the name Cochlodiniinecator piscidefendens gen. nov., sp. nov. is proposed. The type strain is M26A2MT (=KCTC 82083T=JCM 34119T).

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Control of the red tide dinoflagellate Cochlodinium polykrikoides by ozone in seawater

Cited by 16 publications

References 44 publications

Purification and Screening of the Antialgal Activity of Seaweed Extracts and a New Glycolipid Derivative against Two Ichthyotoxic Red Tide Microalgae Amphidinium carterae and Karenia mikimotoi

Purification and Screening of the Antialgal Activity of Seaweed Extracts and a New Glycolipid Derivative against Two Ichthyotoxic Red Tide Microalgae Amphidinium carterae and Karenia mikimotoi

Visible-Light-Activated Carbon Dot Photocatalyst for ROS-Mediated Inhibition of Algae Growth

Cochlodiniinecator piscidefendens gen. nov., sp. nov., an algicidal bacterium against the ichthyotoxic dinoflagellate Cochlodinium polykrikoides

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