A review on control of harmful algal blooms by plant-derived allelochemicals

Xiao-qin, Zhu; Dao, Guo-Hua; Tao, Yi; Zhan, Xinmin; Hu, Hong-Ying

doi:10.1016/j.jhazmat.2020.123403

Cited by 146 publications

(76 citation statements)

References 86 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Cyanobacteria photosynthetic systems are the main target sites of polyphenols, which have been used to indicate the response of photosynthesis to environmental stresses (Bussotti et al, 2020;Zhu et al, 2021). PA and GA can inhibit the photosystem II (PSII) activity of cyanobacteria, eventually lead to the suppression of the photosynthetic system (Zhu et al, 2010).…”

Section: Introductionmentioning

confidence: 99%

“…PA and GA can inhibit the photosystem II (PSII) activity of cyanobacteria, eventually lead to the suppression of the photosynthetic system (Zhu et al, 2010). Chlorophyll is one of the main photosynthetic pigments and the foundation of algae photosynthesis (Zhu et al, 2021). Most of the light energy absorbed by chlorophyll is used for photosynthesis, heat (non-photochemical quenching-NPQ) and chlorophyll fluorescence (Hanelt, 2018;Zulfugarov et al, 2018).…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Combined Effects of Allelopathic Polyphenols on Microcystis aeruginosa and Response of Different Chlorophyll Fluorescence Parameters

Huang

Zhu

et al. 2020

Front. Microbiol.

View full text Add to dashboard Cite

Polyphenols are allelochemicals secreted by aquatic plants that effectively control cyanobacteria blooms. In this study, sensitive response parameters (including CFPs) of Microcystis aeruginosa were explored under the stress of different polyphenols individually and their combination. The combined effects on M. aeruginosa were investigated based on the most sensitive parameter and cell densities. For pyrogallic acid (PA) and gallic acid (GA), the sensitivity order of parameters based on the EC50 values (from 0.73 to 3.40 mg L–1 for PA and from 1.05 to 2.68 mg L–1 for GA) and the results of the hierarchical cluster analysis showed that non-photochemical quenching parameters [NPQ, qN, qN(rel) and qCN] > photochemical quenching parameters [YII, qP, qP(rel) and qL] or others [Fv/Fm, F’v/F’m, qTQ and UQF(rel)] > cell densities. CFPs were not sensitive to ellagic acid (EA) and (+)-catechin (CA). The sensitivity order of parameters for M. aeruginosa with PA-GA mixture was similar to that under PA and GA stress. The quantitative (Toxicity Index, TI) and qualitative (Isobologram representation) methods were employed to evaluate the combined effects of PA, GA, and CA on M. aeruginosa based on cell densities and NPQ. TI values based on the EC50 cells suggested the additive effects of binary and multiple polyphenols, but synergistic and additive effects according to the EC50 NPQ (varied from 0.16 to 1.94). In terms of NPQ of M. aeruginosa, the binary polyphenols exhibited synergistic effects when the proportion of high toxic polyphenols PA or GA was lower than 40%, and the three polyphenols showed a synergistic effect only at the ratio of 1:1:1. Similar results were also found by isobologram representation. The results showed that increasing the ratio of high toxic polyphenols would not enhance the allelopathic effects, and the property, proportion and concentrations of polyphenols played an important role in the combined effects. Compared with cell densities, NPQ was a more suitable parameter as evaluating indicators in the combined effects of polyphenols on M. aeruginosa. These results could provide a method to screen the allelochemicals of polyphenols inhibiting cyanobacteria and improve the inhibitory effects by different polyphenols combined modes.

show abstract

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Combined Effects of Allelopathic Polyphenols on Microcystis aeruginosa and Response of Different Chlorophyll Fluorescence Parameters

Huang

Zhu

et al. 2020

Front. Microbiol.

View full text Add to dashboard Cite

show abstract

“…MDA is one of the most important products of membrane lipid peroxidation, so it can indirectly inform the degree of oxidative damage to the cyanobacterial membrane system induced by reactive oxygen species (ROS) (Chen et al, 2019;Zhu et al, 2021). In our study, L. tridentata extract dramatically increased the MDA content in M. aeruginosa.…”

Section: Discussionmentioning

confidence: 63%

Assessment of the Effects of Four Plant Species Used in Mexican Traditional Medicine Against Microcystis aeruginosa

Jiménez

Hoyos

Villasana

et al. 2021

Preprint

View full text Add to dashboard Cite

Microcystis aeruginosa is one of the main harmful bloom-forming cyanobacteria species worldwide. Plant extracts are considered an appropriate practice to obtain effective, economical and sustainable algaecides. For the first time, the effects of Argemone mexicana, Bougainvillea spectabilis, Larrea tridentata and Tradescantia zebrina on the growth of M. aeruginosa in solid and liquid media were investigated by measuring cell density, Chl-a concentration, malondialdehyde (MDA), proteins and nucleotides. Total polyphenol content was quantified to reveal the nature of inhibition. The results in solid medium showed that the methanolic extract of L. tridentata had the greatest effect, showing an inhibition zone of 28.67±0.58 mm. In liquid medium, the methanolic extract of L. tridentata again showed the greatest effects on the cell density of M. aeruginosa (93.80%, p<0.0001), followed by B. spectabilis (87.66%, p<0.0001) and A. mexicana with (87.11%, p<0.001), with EC50 = 13.63, 20.27 and 24.47 mg/L, respectively. L. tridentata also showed a decrease of Chl-a of 91.51% (P<0.0001), MDA increased 6.42 times, and proteins and nucleotides 2.09 and 2.12 times in relation to the control, respectively. L. tridentata showed the highest total polyphenol content, 363.51 mgGAEq/gDE. These results indicate that the decrease in photosynthetic capacity and lipid peroxidation are the most probable mechanisms of action of this species against M. aeruginosa.

show abstract

“…Several studies have been performed to determine the remediation ability of microalgae and plants individually and yet there is a scarcity of information on the combined effects of plants/microalgae for pollutant removal. Numerous studies have reported on the algistatic or algicidal effects of plant allelochemicals [ 35 ], and some showed allelopathic substances of terrestrial plants in aquatic systems.…”

Section: Discussionmentioning

confidence: 99%

Exploiting the Potential in Water Cleanup from Metals and Nutrients of Desmodesmus sp. and Ampelodesmos mauritanicus

Braglia

Rugnini

Malizia

et al. 2021

Plants

View full text Add to dashboard Cite

Increasing levels of freshwater contaminants, mainly due to anthropogenic activities, have resulted in a great deal of interest in finding new eco-friendly, cost-effective and efficient methods for remediating polluted waters. The aim of this work was to assess the feasibility of using a green microalga Desmodesmus sp., a cyanobacterium Nostoc sp. and a hemicryptophyte Ampelodesmos mauritanicus to bioremediate a water polluted with an excess of nutrients (nitrogen and phosphorus) and heavy metals (copper and nickel). We immediately determined that Nostoc sp. was sensitive to metal toxicity, and thus Desmodesmus sp. was chosen for sequential tests with A. mauritanicus. First, A. mauritanicus plants were grown in the ‘polluted’ culture medium for seven days and were, then, substituted by Desmodesmus sp. for a further seven days (14 days in total). Heavy metals were shown to negatively affect both the growth rates and nutrient removal capacity. The sequential approach resulted in high metal removal rates in the single metal solutions up to 74% for Cu and 85% for Ni, while, in the bi-metal solutions, the removal rates were lower and showed a bias for Cu uptake. Single species controls showed better outcomes; however, further studies are necessary to investigate the behavior of new species.

show abstract

A review on control of harmful algal blooms by plant-derived allelochemicals

Cited by 146 publications

References 86 publications

Combined Effects of Allelopathic Polyphenols on Microcystis aeruginosa and Response of Different Chlorophyll Fluorescence Parameters

Combined Effects of Allelopathic Polyphenols on Microcystis aeruginosa and Response of Different Chlorophyll Fluorescence Parameters

Assessment of the Effects of Four Plant Species Used in Mexican Traditional Medicine Against Microcystis aeruginosa

Exploiting the Potential in Water Cleanup from Metals and Nutrients of Desmodesmus sp. and Ampelodesmos mauritanicus

Contact Info

Product

Resources

About