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El Khalloufi, F.
|Title:||Potential control of toxic cyanobacteria blooms with Moroccan seaweed extracts|
|Abstract:||Marine macroalgae are a promising source of diverse bioactive compounds with applications in the biocontrol of harmful cyanobacteria blooms (cyanoHABs). In this work, we evaluated the potential algicidal activities of 14 species of seaweed collected from the coast of Souiria Laqdima, Morocco. Methanol extracts were screened in solid and liquid medium against the growth of the toxic cyanobacteria Microcystis aeruginosa and the microalgae Chlorella sp. used as food supplement. The results in solid medium revealed that the algicidal activity was limited to M. aeruginosa with the extract of Bornetia secundiflora showing the highest growth inhibition activity against Microcystis (27.33 ± 0.33 mm), whereas the extracts of Laminaria digitata, Halopytis incurvus, Ulva lactuca, and Sargasum muticum showed no inhibition. In liquid medium, the results indicated that all methanolic extracts of different macroalgae tested have a significant inhibitory effect on M. aeruginosa compared with that of the negative control. The maximum inhibition rates of M. aeruginosa were produced by the extracts of Bifurcaria tuberculata, Codium elongatum, and B. secundiflora. Moreover, the extracts of B. secundiflora recorded the maximum inhibition rate of Chlorella sp. Overall, the results highlight the potential of the extracts from macroalgae to control toxic cyanobacteria species.|
|Series:||Environmental Science and Pollution Research 26:15218–15228|
|Related Information:||Funding programme: Marie Skłodowska-Curie Actions - H2020 program MSCA-RISE-2018 Project name: Cyanotoxins in Irrigation Waters: Surveillance, Risk Assessment, and Innovative Remediation proposals Project acronym: TOXICROP Project number: 823860 Publication date: 29 March 2019 Length of embargo period: 12 months Persistent identifier: doi.org/10.1007/s11356-019-04921-9|
|Document Type:||Artigo em Revista Científica Internacional|
|Embargo End Date:||2020-03-29|
|Appears in Collections:||CIIMAR - Artigo em Revista Científica Internacional|
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