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Selective control of toxic Microcystis water blooms using lysine and malonic acid: An enclosure experiment
Kaya, K; Liu, YD; Shen, YW; Xiao, BD; Sano, T; Kaya, K, Tohoku Univ, Grad Sch Environm Studies, Aoba Ku, Sendai, Miyagi 9808579, Japan
2005-04-01
Source PublicationENVIRONMENTAL TOXICOLOGY
ISSN1520-4081
Volume20Issue:2Pages:170-178
AbstractThree enclosures (10 x 10 x 1.5-1.3 m in depth) were set beside Dianch Lake, Kunming, People's Republic of China, for the period from July 28 to August 26, 2002. The enclosures were filled with cyanobacterial (Microcystis aeruginosa) water bloom-containing lake water. Lake sediment that contained macrophytes and water chestnut seeds was spread over the entire bottom of each enclosure. Initially, 10 g/m(2) of lysine was sprayed in Enclosure B, and 10 g/m(2) each of lysine and malonic acid were sprayed together in Enclosure C. Enclosure A remained untreated and was used as a control. The concentrations of lysine, malonic acid, chlorophyll a, and microcystin as well as the cell numbers of phytoplankton such as cyanobacteria, diatom, and euglena were monitored. On day 1 of the treatment, formation of cyanobacterial blooms almost ceased in Enclosures B and C, although Microcystis cells in the control still formed blooms. On day 7 Microcystis cells in Enclosure B that had been treated with lysine started growing again, whereas growth was not observed in Microcystis cells in Enclosure C, which had been treated with lysine and malonic acid. On day 28 the surface of Enclosure B was covered with water chestnut (Trapa spp.) and the Microcystis blooms again increased. In contrast, growth of macrophytes (Myriophllum spicatum and Potamogeton crispus) was observed in Enclosure C; however, no cyanobacterial blooms were observed. Lysine and malonic acid had completely decomposed. The microcystin concentration on day 28 decreased to 25% of the initial value, and the pH shifted from the initial value of 9.2 to 7.8. We concluded that combined treatment with lysine and malonic acid selectively controlled toxic Microcystis water blooms and induced the growth of macrophytes. (c) 2005 Wiley Periodicals, Inc.; Three enclosures (10 x 10 x 1.5-1.3 m in depth) were set beside Dianch Lake, Kunming, People's Republic of China, for the period from July 28 to August 26, 2002. The enclosures were filled with cyanobacterial (Microcystis aeruginosa) water bloom-containing lake water. Lake sediment that contained macrophytes and water chestnut seeds was spread over the entire bottom of each enclosure. Initially, 10 g/m(2) of lysine was sprayed in Enclosure B, and 10 g/m(2) each of lysine and malonic acid were sprayed together in Enclosure C. Enclosure A remained untreated and was used as a control. The concentrations of lysine, malonic acid, chlorophyll a, and microcystin as well as the cell numbers of phytoplankton such as cyanobacteria, diatom, and euglena were monitored. On day 1 of the treatment, formation of cyanobacterial blooms almost ceased in Enclosures B and C, although Microcystis cells in the control still formed blooms. On day 7 Microcystis cells in Enclosure B that had been treated with lysine started growing again, whereas growth was not observed in Microcystis cells in Enclosure C, which had been treated with lysine and malonic acid. On day 28 the surface of Enclosure B was covered with water chestnut (Trapa spp.) and the Microcystis blooms again increased. In contrast, growth of macrophytes (Myriophllum spicatum and Potamogeton crispus) was observed in Enclosure C; however, no cyanobacterial blooms were observed. Lysine and malonic acid had completely decomposed. The microcystin concentration on day 28 decreased to 25% of the initial value, and the pH shifted from the initial value of 9.2 to 7.8. We concluded that combined treatment with lysine and malonic acid selectively controlled toxic Microcystis water blooms and induced the growth of macrophytes. (c) 2005 Wiley Periodicals, Inc.
SubtypeArticle
KeywordLysine Malonic Acid Toxic Microcystis Enclosure Microcystins Selective Control Potamogeton Crispus Myriophllum Spicatum Water Chestnut
DepartmentTohoku Univ, Grad Sch Environm Studies, Aoba Ku, Sendai, Miyagi 9808579, Japan; Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China; Natl Inst Environm Studies, Tsukuba, Ibaraki 3058506, Japan
Subject AreaEnvironmental Sciences ; Toxicology ; Water Resources
DOI10.1002/tox.20092
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine ; Physical Sciences
Indexed BySCI
Language英语
WOS Research AreaEnvironmental Sciences & Ecology ; Toxicology ; Water Resources
WOS SubjectEnvironmental Sciences ; Toxicology ; Water Resources
WOS IDWOS:000228320600008
WOS KeywordAMINO-ACID ; AERUGINOSA ; ASSAY ; LAKE
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Document Type期刊论文
Identifierhttp://ir.ihb.ac.cn/handle/152342/9292
Collection期刊论文
Corresponding AuthorKaya, K, Tohoku Univ, Grad Sch Environm Studies, Aoba Ku, Sendai, Miyagi 9808579, Japan
Affiliation1.Tohoku Univ, Grad Sch Environm Studies, Aoba Ku, Sendai, Miyagi 9808579, Japan
2.Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China
3.Natl Inst Environm Studies, Tsukuba, Ibaraki 3058506, Japan
Recommended Citation
GB/T 7714
Kaya, K,Liu, YD,Shen, YW,et al. Selective control of toxic Microcystis water blooms using lysine and malonic acid: An enclosure experiment[J]. ENVIRONMENTAL TOXICOLOGY,2005,20(2):170-178.
APA Kaya, K,Liu, YD,Shen, YW,Xiao, BD,Sano, T,&Kaya, K, Tohoku Univ, Grad Sch Environm Studies, Aoba Ku, Sendai, Miyagi 9808579, Japan.(2005).Selective control of toxic Microcystis water blooms using lysine and malonic acid: An enclosure experiment.ENVIRONMENTAL TOXICOLOGY,20(2),170-178.
MLA Kaya, K,et al."Selective control of toxic Microcystis water blooms using lysine and malonic acid: An enclosure experiment".ENVIRONMENTAL TOXICOLOGY 20.2(2005):170-178.
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