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Growth Inhibition of Phaeocystis Globosa Induced by Luteolin-7-O-glucuronide from Seagrass Enhalus acoroides

Author

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  • Jingyi Zhu

    (Department of Ecology, College of Life Science and Technology, Jinan University, Guangzhou 510632, China)

  • Han Xiao

    (Department of Ecology, College of Life Science and Technology, Jinan University, Guangzhou 510632, China)

  • Qi Chen

    (Department of Ecology, College of Life Science and Technology, Jinan University, Guangzhou 510632, China)

  • Min Zhao

    (Department of Ecology, College of Life Science and Technology, Jinan University, Guangzhou 510632, China)

  • Dong Sun

    (Department of Ecology, College of Life Science and Technology, Jinan University, Guangzhou 510632, China)

  • Shunshan Duan

    (Department of Ecology, College of Life Science and Technology, Jinan University, Guangzhou 510632, China)

Abstract

Enhalus acoroides ( E. acoroides ) is one of the most common species in seagrass meadows. Based on the application of allelochemicals from aquatic plants to inhibit harmful algal blooms (HABs), we used E. acoroides aqueous extract against harmful algae species Phaeocystis globosa ( P. globosa ). The results showed that E. acoroides aqueous extract could significantly inhibited the growth of P. globosa , decrease the chlorophyll-a content and photosynthetic efficiency (Fv/Fm) values of P. globosa , followed by vacuolization, plasmolysis, and the destruction of organelles. Twelve types of major chemical constituents were identified in E. acoroides aqueous extracts by ultraperformance liquid chromatography-high resolution mass spectrometry (UPLC-HRMS), including six flavonoids, two homocyclic peptides, two long-chain aliphatic amides, one tannin, and one nitrogen heterocyclic compound. Flavonoids were the characteristic chemical constituents of E. acoroides aqueous extract. Furthermore, the antialgal activity of luteolin-7-O-glucuronide (68.125 μg/mL in 8 g/L E. acoroides aqueous extract) was assessed. The EC 50–96 h value was 34.29 μg/mL. In conclusion, the results revealed that luteolin 7-O-glucuronide was one of the antialgal compounds of E. acoroides aqueous extract, with potential application as novel algaecide.

Suggested Citation

  • Jingyi Zhu & Han Xiao & Qi Chen & Min Zhao & Dong Sun & Shunshan Duan, 2019. "Growth Inhibition of Phaeocystis Globosa Induced by Luteolin-7-O-glucuronide from Seagrass Enhalus acoroides," IJERPH, MDPI, vol. 16(14), pages 1-13, July.
    • Handle: RePEc:gam:jijerp:v:16:y:2019:i:14:p:2615-:d:250727
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    References listed on IDEAS

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    1. Min Zhao & Han Xiao & Dong Sun & Shunshan Duan, 2018. "Investigation of the Inhibitory Effects of Mangrove Leaves and Analysis of Their Active Components on Phaeocystis globosa during Different Stages of Leaf Age," IJERPH, MDPI, vol. 15(11), pages 1-19, November.
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    Cited by:

    1. Jingyi Zhu & Yeyin Yang & Shunshan Duan & Dong Sun, 2019. "The Antialgal Mechanism of Luteolin-7-O-Glucuronide on Phaeocystis globosa by Metabolomics Analysis," IJERPH, MDPI, vol. 16(17), pages 1-10, September.

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