Selective control of toxic Microcystis water blooms using lysine and malonic acid: An enclosure experiment

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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
刊名	ENVIRONMENTAL TOXICOLOGY
	2005-04-01
卷号	20 期号:2 页码:170-178
关键词	lysine malonic acid toxic Microcystis enclosure microcystins selective control Potamogeton crispus Myriophllum spicatum water chestnut
ISSN号	1520-4081
通讯作者	Kaya, K, Tohoku Univ, Grad Sch Environm Studies, Aoba Ku, Sendai, Miyagi 9808579, Japan
中文摘要	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.
英文摘要	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.
学科主题	Environmental Sciences; Toxicology; Water Resources
WOS标题词	Science & Technology ; Life Sciences & Biomedicine ; Physical Sciences
类目[WOS]	Environmental Sciences ; Toxicology ; Water Resources
研究领域[WOS]	Environmental Sciences & Ecology ; Toxicology ; Water Resources
关键词[WOS]	AMINO-ACID ; AERUGINOSA ; ASSAY ; LAKE
收录类别	SCI
语种	英语
WOS记录号	WOS:000228320600008
公开日期	2010-10-13
内容类型	期刊论文
源URL	[http://ir.ihb.ac.cn/handle/152342/9292]
专题	水生生物研究所_中科院水生所知识产出（2009年前）_期刊论文
作者单位	1.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
推荐引用方式 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.(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.