Effects of cultivated water of Myriophyllum spicatum on Microcystis aeruginosa

被引：0
|
作者：
Gao Y. [1 ]
Wu J. [1 ]
Yang H. [1 ]
Zhang F. [1 ]
Liu C. [1 ]
Luo K. [1 ]
机构：
[1] College of Fisheries, Henan Normal University, Xinxiang
来源：
Gao, Yunni (gaoyun@htu.cn) | 1600年 / Editorial Board of Water Resources Protection卷 / 37期
关键词：
Allelochemical; Cultivated water; Microcystis aeruginosa; Myriophyllum spicatum; Nutrients;
D O I：
10.3880/j.issn.1004-6933.2021.06.024
中图分类号：
学科分类号：
摘要：
To explore the effects of nutrient levels on allelopathic inhibition of submerged macrophytes on cyanobacteria, the cultivated water of submerged macrophyte Myriophyllum spicatum, which was self-propagated under outdoor conditions, was collected to study the growth and physiological responses of toxigenic and non-toxigenic strains of harmful cyanobacteria Microcystis aeruginosa under two nutrient levels. The results showed that the cultivated water significantly inhibits the growth and physiological process of toxigenic and non-toxigenic M. aeruginosa(P<0. 05), while the inhibitory effect is stronger at lower nutrient levels(P<0. 05). With the cultivated water of M. spicatum exposed in the air with nutrient enrichment for nine days, the growth inhibition ratios of the toxigenic and non-toxigenic M. aeruginosa were 23. 5% and 20. 9% respectively; the inhibition ratios on actual photochemical efficiency of photosystem Ⅱ of the toxigenic and non-toxigenic strains were 7. 4% and 17. 6% respectively; the malondialdehyde(MDA)contents of the toxigenic and non-toxigenic strains were increased by 5. 6% and 9. 1% respectively. With original cultivated water of M. spicatum, the growth inhibition ratios of the toxigenic and non-toxigenic M. aeruginosa were 60. 7% and 49. 3% respectively; the inhibition ratios on actual photochemical efficiency of photosystem Ⅱ of the toxigenic and non-toxigenic strains were 15. 4% and 23. 4% respectively; MDA contents of the toxigenic and non-toxigenic strains were increased by 11. 1% and 18. 2% respectively. © 2021, Editorial Board of Water Resources Protection. All rights reserved.
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页码：162 / 167
页数：5
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共 35 条
  • [21] LI Daming, KONG Fanxiang, YANG Zhen, Et al., Studies on the abundance of toxic and non-toxic Microcystis population of Lake Chaohu in summer and winter[J], Acta Scientiae Circumstantiae, 31, pp. 2672-2680, (2011)
  • [22] YANG K, YU Z, LUO Y, Et al., Spatial and temporal variations in the relationship between lake water surface temperatures and water quality:a case study of Dianchi Lake[J], Science of the Total Environment, 624, pp. 859-871, (2018)
  • [23] HUISMAN J, CODD G A, PAERL H W, Et al., Cyanobacterial blooms[J], Nature Reviews Microbiology, 16, pp. 471-483, (2018)
  • [24] XIAO M, LI M, REYNOLDS C S., Colony formation in the cyanobacterium Microcystis[J], Biological Reviews, 93, pp. 1399-1420, (2018)
  • [25] KONG Yun, ZOU Pei, SONG Liming, Et al., Effects of iron on the algae growth and microcytsin synthesis[J], Chinese Journal of Applied Ecology, 25, 5, pp. 1533-1540, (2014)
  • [26] LIU Y, XU Y, WANG Z, Et al., Dominance and succession of Microcystis genotypes and morphotypes in Lake Taihu,a large and shallow freshwater lake in China[J], Environmental Pollution, 219, pp. 399-408, (2016)
  • [27] RASTOGI RP, SINHA RP, INCHAROENSAKDI A., The cyanotoxin-microcystins:current overview[J], Reviews in Environmental Science and Biotechnology, 13, pp. 215-249, (2014)
  • [28] DAVIS T W, BERRY D L, BOYER G L, Et al., The effects of temperature and nutrients on the growth and dynamics of toxic and non-toxic strains of Microcystis during cyanobacteria blooms[J], Harmful Algae, 8, pp. 715-725, (2009)
  • [29] VEZIE C, RAPALA J, VAITOMAA J, Et al., Effect of nitrogen and phosphorus on growth of toxic and nontoxic Microcystis strains and on intracellular microcystin concentrations[J], Microbial Ecology, 43, pp. 443-454, (2002)
  • [30] VAN DE WAAL D B, VERSPAGEN J M H, FINKE J F, Et al., Reversal in competitive dominance of a toxic versus non-toxic cyanobacterium in response to rising CO2[J], The ISME Journal, 5, pp. 1438-1450, (2011)
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