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Using oligoagar to improve the survival of Neoporphyra haitanensis conchocelis infected by Vibrio mediterranei 117-T6

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Abstract

Neoporphyra haitanensis is a vital economic seaweed in China. As an infectious disease with a high incidence in the conchocelis sporeling culture of Porphyra, yellow spot disease (YSD) seriously affects the industrial development of seaweed cultivation. In the present study, we analyzed the protective effect of oligoagar (OA) on YSD caused by Vibrio mediterranei 117-T6 (Vm 117-T6). The experiment was conducted under the standard culture conditions of N. haitanensis conchocelis. The results showed that OA treatment (0.1 g L−1 OA treatment for 1 h and performed twice with a 48 h interval) could significantly improve the survival of N. haitanensis conchocelis infected by Vm 117-T6 (P < 0.05). Furthermore, OA treatment increased the physiological and biochemical indexes, such as superoxide dismutase (SOD), phycobiliprotein and photosynthetic pigment content of Porphyra. Therefore, OA treatment has good application potential for preventing YSD caused by V. mediterranei 117-T6.

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Data availability

The datasets generated during and/or analysed during the current study are available from the corresponding author on reasonable request.

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Funding

This study was funded by Zhejiang Province Natural Science Foundation of China (LY22C190002); National Natural Science Foundation of China (32273155, 31772871); Major Scientific and Technological Project of Zhejiang Province (2021C02069-9); Major Scientific and Technological Project of Ningbo (2021Z004, 2021Z104); Scientific and Technological Project of Ningbo (2022S208), China Agriculture Research System of MOF and MARA, K.C. Wong Magna Fund in Ningbo University, China.

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Authors and Affiliations

  1. State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-Products, Ningbo University, Ningbo, 315211, China

    Yangying Mao, Rui Yang, Lei Ke, Haimin Chen & Juanjuan Chen

  2. Key Laboratory of Marine Biotechnology of Zhejiang Province, Ningbo University, Ningbo, 315211, Zhejiang, China

    Rui Yang, Haimin Chen, Juanjuan Chen & Qijun Luo

  3. School of Marine Science, Ningbo University, No. 169, Qixing South Road, Meishan Bonded Port Area, Ningbo, 315800, Zhejiang, China

    Yangying Mao, Rui Yang, Lei Ke, Haimin Chen, Juanjuan Chen & Qijun Luo

Authors
  1. Yangying Mao
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  2. Rui Yang
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  3. Lei Ke
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  4. Haimin Chen
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  5. Juanjuan Chen
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  6. Qijun Luo
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Contributions

Yangying Mao: Experiment design and implementation, writing-original draft preparation, software, investigation, validation.

Rui Yang: Experiment design and implementation, writing- reviewing and revising, conceptualization.

Lei Ke: Experiment implementation.

Haimin Chen: Experiment design and direction, review.

Juanjuan Chen: Experiment design and direction, review.

Qijun Luo: sample collection.

Corresponding author

Correspondence to Rui Yang.

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Mao, Y., Yang, R., Ke, L. et al. Using oligoagar to improve the survival of Neoporphyra haitanensis conchocelis infected by Vibrio mediterranei 117-T6. J Appl Phycol 35, 753–762 (2023). https://doi.org/10.1007/s10811-023-02918-z

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  • DOI: https://doi.org/10.1007/s10811-023-02918-z

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