Complex extinguishment of harmful algae by cupric glutamine and surfactant

LI Hao; MIAO Jin-lai; LIU Xiao-guang; CUI Feng-xia; LI Guang-you

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LI Hao, MIAO Jin-lai, LIU Xiao-guang, CUI Feng-xia, LI Guang-you. Complex extinguishment of harmful algae by cupric glutamine and surfactant[J]. Haiyang Xuebao, 2006, 28(3): 127-132.

Citation:

LI Hao, MIAO Jin-lai, LIU Xiao-guang, CUI Feng-xia, LI Guang-you. Complex extinguishment of harmful algae by cupric glutamine and surfactant[J]. Haiyang Xuebao, 2006, 28(3): 127-132.

LI Hao, MIAO Jin-lai, LIU Xiao-guang, CUI Feng-xia, LI Guang-you. Complex extinguishment of harmful algae by cupric glutamine and surfactant[J]. Haiyang Xuebao, 2006, 28(3): 127-132.

Citation:

LI Hao, MIAO Jin-lai, LIU Xiao-guang, CUI Feng-xia, LI Guang-you. Complex extinguishment of harmful algae by cupric glutamine and surfactant[J]. Haiyang Xuebao, 2006, 28(3): 127-132.

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Complex extinguishment of harmful algae by cupric glutamine and surfactant

1.
Key Laboratory of Marine Bioactive Substances of State Oceanic Administration, Qingdao 266061, China;Marine Life College, Ocean University of China, Qingdao 266003, China
2.
Key Laboratory of Marine Bioactive Substances of State Oceanic Administration, Qingdao 266061, China
3.
College of Food Science and Technology, Ocean University of China, Qingdao 266003, China

Received Date: 2005-03-08
Rev Recd Date: 2005-09-29

Abstract

Abstract

Cupric glutamate was studied as a novel algicide formarine harmful algae and hexadecy ltrimethyl-eamine bromide(H DT MAB)as an accelerant.The studies on the extinguishment of Alexandrium sp.by cupric sulfate or cupric glutamate showed that cupric glutamate had a higher exting uishing rate than cupric sulfate.Cupric glutamate had an excellent ability to inhibit the growth of Alexandrium sp.,but the inhibition efficiency did not increase with higher cupric glutamate concentration.HDTMAB could stimulate the exting uishments by cupric glutamate obviously.There was a positive correlation between concentration of HDTMAB and increasing effect.Study of the mechanism of the exting uishment of Alexandrium sp. showed that cupric glutamate stimulated the production of MDA and reduced the content of sulf hydryl group.The lipid peroxidation level in cells was higher under cupric glutamate-surfact antjoint operation than cupric glutamate alone.In addition of the content of sulfhydryl group decreased significantly,plasma membrane permeability of leaked cell solution was increased.These indicated the extinguishing mechanism:the cell membrane was damaged followed by the inhibition of the cell growth.
- cupric glutamate,
- surfactant,
- Alexandrium sp.,
- lipid peroxidation

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References(24)

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