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Transcriptional Analysis of Microcystis aeruginosa Co-Cultured with Algicidal Bacteria Brevibacillus laterosporus

Author

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  • Yulei Zhang

    (Department of Aquaculture, Fisheries College, Guangdong Ocean University, Zhanjiang 524088, China
    Shenzhen Research Institute, Guangdong Ocean University, Shenzhen 518108, China)

  • Dong Chen

    (Department of Aquaculture, Fisheries College, Guangdong Ocean University, Zhanjiang 524088, China)

  • Ning Zhang

    (Department of Aquaculture, Fisheries College, Guangdong Ocean University, Zhanjiang 524088, China
    Shenzhen Research Institute, Guangdong Ocean University, Shenzhen 518108, China)

  • Feng Li

    (Department of Aquaculture, Fisheries College, Guangdong Ocean University, Zhanjiang 524088, China
    Shenzhen Research Institute, Guangdong Ocean University, Shenzhen 518108, China)

  • Xiaoxia Luo

    (Department of Aquaculture, Fisheries College, Guangdong Ocean University, Zhanjiang 524088, China)

  • Qianru Li

    (Department of Aquaculture, Fisheries College, Guangdong Ocean University, Zhanjiang 524088, China)

  • Changling Li

    (Department of Aquaculture, Fisheries College, Guangdong Ocean University, Zhanjiang 524088, China
    Shenzhen Research Institute, Guangdong Ocean University, Shenzhen 518108, China)

  • Xianghu Huang

    (Department of Aquaculture, Fisheries College, Guangdong Ocean University, Zhanjiang 524088, China
    Shenzhen Research Institute, Guangdong Ocean University, Shenzhen 518108, China)

Abstract

Harmful algal blooms caused huge ecological damage and economic losses around the world. Controlling algal blooms by algicidal bacteria is expected to be an effective biological control method. The current study investigated the molecular mechanism of harmful cyanobacteria disrupted by algicidal bacteria. Microcystis aeruginosa was co-cultured with Brevibacillus laterosporus Bl-zj, and RNA-seq based transcriptomic analysis was performed compared to M. aeruginosa , which was cultivated separately. A total of 1706 differentially expressed genes were identified, which were mainly involved in carbohydrate metabolism, energy metabolism and amino acid metabolism. In the co-cultured group, the expression of genes mainly enriched in photosynthesis and oxidative phosphorylation were significantly inhibited. However, the expression of the genes related to fatty acid synthesis increased. In addition, the expression of the antioxidant enzymes, such as 2-Cys peroxiredoxin, was increased. These results suggested that B. laterosporus could block the electron transport by attacking the PSI system and complex I of M. aeruginosa , affecting the energy acquisition and causing oxidative damage. This further led to the lipid peroxidation of the microalgal cell membrane, resulting in algal death. The transcriptional analysis of algicidal bacteria in the interaction process can be combined to explain the algicidal mechanism in the future.

Suggested Citation

  • Yulei Zhang & Dong Chen & Ning Zhang & Feng Li & Xiaoxia Luo & Qianru Li & Changling Li & Xianghu Huang, 2021. "Transcriptional Analysis of Microcystis aeruginosa Co-Cultured with Algicidal Bacteria Brevibacillus laterosporus," IJERPH, MDPI, vol. 18(16), pages 1-14, August.
    • Handle: RePEc:gam:jijerp:v:18:y:2021:i:16:p:8615-:d:614752
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    References listed on IDEAS

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    1. Leyi Duan & Qi Chen & Shunshan Duan, 2019. "Transcriptional Analysis of Chlorella pyrenoidosa Exposed to Bisphenol A," IJERPH, MDPI, vol. 16(8), pages 1-12, April.
    2. Christina Lunde & Poul Erik Jensen & Anna Haldrup & Juergen Knoetzel & Henrik Vibe Scheller, 2000. "The PSI-H subunit of photosystem I is essential for state transitions in plant photosynthesis," Nature, Nature, vol. 408(6812), pages 613-615, November.
    3. Alexey Amunts & Omri Drory & Nathan Nelson, 2007. "The structure of a plant photosystem I supercomplex at 3.4 Å resolution," Nature, Nature, vol. 447(7140), pages 58-63, May.
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    Cited by:

    1. Bin Zhang & Ying Yang & Wenjia Xie & Wei He & Jia Xie & Wei Liu, 2022. "Identifying Algicides of Enterobacter hormaechei F2 for Control of the Harmful Alga Microcystis aeruginosa," IJERPH, MDPI, vol. 19(13), pages 1-16, June.

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