Potential Allelopathic Effect of Ipomoea aquatica to Microcystis aeruginosa Growth

IF 3.8 4区环境科学与生态学 Q2 ENVIRONMENTAL SCIENCES

Water, Air, & Soil Pollution Pub Date : 2024-11-19 DOI:10.1007/s11270-024-07647-8

Senwei Liu, Huiyan Jia, Yingting Peng, Zhuowei Li, Weihong Xi, Fanxuan Yin, Yundi Shi, Hongyu Zhou, Lu Du, Yonghua Chen

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引用次数: 0

Abstract

The allelopathic effect of macrophytes to phytoplankton has been widely formalized and accepted, while, less attention has been paid to aquatic vegetable. Herein, we investigated the inhibitory ability of Ipomoea aquatica (I. aquatica) at different concentrations to Microcystis aeruginosa, and verified the inhibition effect of main allelopathic substances. Results showed that, I. aquatica root secretion solution could effectively inhibit the growth of Microcystis aeruginosa (95%), and exhibited a concentration dependent effect. Seven potential allelopathic substances was both detected in root exudates and secretion solution of I. aquatic, they were succinic acid, salicylic acid, cinnamic acid, 3-(4-hydroxyphenyl) propionic acid, trans-cinnamic aldehyde, coumarin, and isophorone. Exogenous addition experiment further verified the inhibition effect, and the inhibition level varied with the types. Succinic acid, salicylic acid and cinnamic acid showed the tendency of promotion in lower concentration and inhibition in high concentration, with the inhibition threshold of 0.8 mmol/L, which was positively correlated with its concentration. 3-(4-hydroxyphenyl) propionic acid, coumarin and isophorone showed strong inhibition on Microcystis aeruginosa when the concentration was higher than 0.2 mmol/L, which was positively correlated with its concentration and co-culture time. Ipomoea aquatica can continuously release allelopathic substances under natural conditions and is expected to contribute to the restoration of aquatic ecosystems.

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水生红苕对铜绿微囊藻生长的潜在异化作用

大型浮游植物对浮游植物的等位基因效应已被广泛接受和认可，但对水生植物的等位基因效应关注较少。本文研究了不同浓度的水生苕子（Ipomoea aquatica）对铜绿微囊藻（Microcystis aeruginosa）的抑制能力，并验证了主要等位病理物质的抑制效果。结果表明，I. aquatica 根分泌物溶液能有效抑制铜绿微囊藻的生长（95%），并呈现出浓度依赖效应。在水生植物根部渗出液和分泌液中都检测到了 7 种潜在的等位病理物质，它们分别是琥珀酸、水杨酸、肉桂酸、3-（4-羟基苯基）丙酸、反式肉桂醛、香豆素和异佛尔酮。外源添加实验进一步验证了抑制效果，抑制水平随种类而变化。琥珀酸、水杨酸和肉桂酸呈低浓度促进、高浓度抑制的趋势，抑制阈值为 0.8 mmol/L，与其浓度呈正相关。当浓度高于 0.2 mmol/L 时，3-（4-羟基苯基）丙酸、香豆素和异佛尔酮对铜绿微囊藻有较强的抑制作用，且与浓度和共培养时间呈正相关。水生苕子能在自然条件下持续释放等位物质，有望为恢复水生生态系统做出贡献。

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来源期刊

Water, Air, & Soil Pollution 环境科学-环境科学

CiteScore

4.50

自引率

6.90%

发文量

448

审稿时长

2.6 months

期刊介绍： Water, Air, & Soil Pollution is an international, interdisciplinary journal on all aspects of pollution and solutions to pollution in the biosphere. This includes chemical, physical and biological processes affecting flora, fauna, water, air and soil in relation to environmental pollution. Because of its scope, the subject areas are diverse and include all aspects of pollution sources, transport, deposition, accumulation, acid precipitation, atmospheric pollution, metals, aquatic pollution including marine pollution and ground water, waste water, pesticides, soil pollution, sewage, sediment pollution, forestry pollution, effects of pollutants on humans, vegetation, fish, aquatic species, micro-organisms, and animals, environmental and molecular toxicology applied to pollution research, biosensors, global and climate change, ecological implications of pollution and pollution models. Water, Air, & Soil Pollution also publishes manuscripts on novel methods used in the study of environmental pollutants, environmental toxicology, environmental biology, novel environmental engineering related to pollution, biodiversity as influenced by pollution, novel environmental biotechnology as applied to pollution (e.g. bioremediation), environmental modelling and biorestoration of polluted environments. Articles should not be submitted that are of local interest only and do not advance international knowledge in environmental pollution and solutions to pollution. Articles that simply replicate known knowledge or techniques while researching a local pollution problem will normally be rejected without review. Submitted articles must have up-to-date references, employ the correct experimental replication and statistical analysis, where needed and contain a significant contribution to new knowledge. The publishing and editorial team sincerely appreciate your cooperation. Water, Air, & Soil Pollution publishes research papers; review articles; mini-reviews; and book reviews.