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Allelopathic effects of pyrogallic acid secreted by submerged macrophytes on Microcystis aeruginosa: Role of ROS generation
Sun, X. M.; Lu, Z. Y.; Liu, B. Y.; Zhou, Q. H.; Zhang, Y. Y.; Wu, Z. B.; Liu, BY (reprint author), Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China.
2014
Source PublicationALLELOPATHY JOURNAL
ISSN0971-4693
Volume33Issue:1Pages:121-129
AbstractWe investigated the intracellular O-2(center dot-), H2O2 and OH center dot generation induced by PA in Microcystis aeruginosa using two targeted fluorescent probes and also determining the SOD activity. We found that PA significantly induces the dose-dependent generation of O-2(center dot-) and consequently H2O2, OH center dot. Under dark condition, when exposed to 50 mg L-1 PA for 8 h, the O-2(center dot-) and H2O2/OH center dot levels in M. aeruginosa were 2.00 and 1.91 folds of the respective control. The light enhanced the O-2(center dot-) formation. The low concentration of PA (5 mg L-1) activated the SOD, but was inhibited gradually with increase in PA concentrations, especially under light condition. The results of this study indicated the significant generation of O-2(center dot-) as precursor of H2O2 and OH center dot, which provided original and direct evidence for the oxidative stress of PA to M. aeruginosa. The results also suggested that the futile redox cycling of PA was the main source of excessive intracellular Or and consequent H2O2 and OH center dot, which induced the allelopathic inhibition of M aeruginosa.; We investigated the intracellular O-2(center dot-), H2O2 and OH center dot generation induced by PA in Microcystis aeruginosa using two targeted fluorescent probes and also determining the SOD activity. We found that PA significantly induces the dose-dependent generation of O-2(center dot-) and consequently H2O2, OH center dot. Under dark condition, when exposed to 50 mg L-1 PA for 8 h, the O-2(center dot-) and H2O2/OH center dot levels in M. aeruginosa were 2.00 and 1.91 folds of the respective control. The light enhanced the O-2(center dot-) formation. The low concentration of PA (5 mg L-1) activated the SOD, but was inhibited gradually with increase in PA concentrations, especially under light condition. The results of this study indicated the significant generation of O-2(center dot-) as precursor of H2O2 and OH center dot, which provided original and direct evidence for the oxidative stress of PA to M. aeruginosa. The results also suggested that the futile redox cycling of PA was the main source of excessive intracellular Or and consequent H2O2 and OH center dot, which induced the allelopathic inhibition of M aeruginosa.
SubtypeArticle
KeywordAllelopathy Hydrogen Peroxide Hydroxyl Radical Oxidative Stress Redox Cycling Superoxide Anion Superoxide Dismutase
Department[Sun, X. M.; Lu, Z. Y.; Liu, B. Y.; Zhou, Q. H.; Zhang, Y. Y.; Wu, Z. B.] Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine
Funding OrganizationNational Nature Science Foundation of China [51178452, 50909091, 31123001]; Major Science and Technology Program for Water Pollution Control and Treatment of China 12th Five-Year Plan [2012ZX07101007-005]; State Key Laboratory of Freshwater Ecology and Biotechnology Program [2013FB20] ; National Nature Science Foundation of China [51178452, 50909091, 31123001]; Major Science and Technology Program for Water Pollution Control and Treatment of China 12th Five-Year Plan [2012ZX07101007-005]; State Key Laboratory of Freshwater Ecology and Biotechnology Program [2013FB20] ; National Nature Science Foundation of China [51178452, 50909091, 31123001]; Major Science and Technology Program for Water Pollution Control and Treatment of China 12th Five-Year Plan [2012ZX07101007-005]; State Key Laboratory of Freshwater Ecology and Biotechnology Program [2013FB20] ; National Nature Science Foundation of China [51178452, 50909091, 31123001]; Major Science and Technology Program for Water Pollution Control and Treatment of China 12th Five-Year Plan [2012ZX07101007-005]; State Key Laboratory of Freshwater Ecology and Biotechnology Program [2013FB20]
Indexed BySCI
Language英语
WOS Research AreaAgriculture
WOS SubjectAgronomy
WOS IDWOS:000331592400010
WOS KeywordPLANT-PRODUCING PHENOLS ; BLUE-GREEN-ALGAE ; (-)-EPIGALLOCATECHIN GALLATE ; GROWTH-INHIBITION ; CYANOBACTERIA ; ALLELOCHEMICALS ; PHYTOPLANKTON ; MECHANISMS ; APOPTOSIS ; CELLS
Funding OrganizationNational Nature Science Foundation of China [51178452, 50909091, 31123001]; Major Science and Technology Program for Water Pollution Control and Treatment of China 12th Five-Year Plan [2012ZX07101007-005]; State Key Laboratory of Freshwater Ecology and Biotechnology Program [2013FB20] ; National Nature Science Foundation of China [51178452, 50909091, 31123001]; Major Science and Technology Program for Water Pollution Control and Treatment of China 12th Five-Year Plan [2012ZX07101007-005]; State Key Laboratory of Freshwater Ecology and Biotechnology Program [2013FB20] ; National Nature Science Foundation of China [51178452, 50909091, 31123001]; Major Science and Technology Program for Water Pollution Control and Treatment of China 12th Five-Year Plan [2012ZX07101007-005]; State Key Laboratory of Freshwater Ecology and Biotechnology Program [2013FB20] ; National Nature Science Foundation of China [51178452, 50909091, 31123001]; Major Science and Technology Program for Water Pollution Control and Treatment of China 12th Five-Year Plan [2012ZX07101007-005]; State Key Laboratory of Freshwater Ecology and Biotechnology Program [2013FB20]
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Cited Times:12[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ihb.ac.cn/handle/342005/20072
Collection水环境工程研究中心_期刊论文
Corresponding AuthorLiu, BY (reprint author), Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China.
AffiliationChinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China
Recommended Citation
GB/T 7714
Sun, X. M.,Lu, Z. Y.,Liu, B. Y.,et al. Allelopathic effects of pyrogallic acid secreted by submerged macrophytes on Microcystis aeruginosa: Role of ROS generation[J]. ALLELOPATHY JOURNAL,2014,33(1):121-129.
APA Sun, X. M..,Lu, Z. Y..,Liu, B. Y..,Zhou, Q. H..,Zhang, Y. Y..,...&Liu, BY .(2014).Allelopathic effects of pyrogallic acid secreted by submerged macrophytes on Microcystis aeruginosa: Role of ROS generation.ALLELOPATHY JOURNAL,33(1),121-129.
MLA Sun, X. M.,et al."Allelopathic effects of pyrogallic acid secreted by submerged macrophytes on Microcystis aeruginosa: Role of ROS generation".ALLELOPATHY JOURNAL 33.1(2014):121-129.
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