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在有毒藻 Pseudo-nitzschia 多系列中,放牧诱导的细胞反应

Yuelei Dong¹, Huiling Wang², Wenqing Jiang³

¹Guangdong Provincial Key Laboratory of Biotechnology for Plant Development, Guangzhou Key Laboratory of Subtropical Biodiversity and Biomonitoring, College of Life Science, South China Normal University, Guangzhou 510631, China; Key Laboratory of Eutrophication and Red Tide Prevention of Guangdong Higher Education Institutes, College of Life Science and Technology, Jinan University, Guangzhou 510632, China.

|November 15, 2025

概括

有毒的Pseudo-nitzschia藻类产生家庭酸 (DA). 当被放牧时,这些藻会增加DA并改变新陈代谢,揭示出分子防御机制来抵御掠食.

科学领域:

海洋生物学海洋生物学
生态毒理学生态毒理学
物理学的生理学

背景情况:

伪尼茨基亚的开花在沿海水域很常见,许多物种产生神经毒素 - - 酸 (DA).
在海洋食物网中,DA生物累积,对人类健康构成风险.
众所周知,放牧压力会影响DA的产生,但藻类细胞中潜在的分子机制尚不清楚.

研究的目的:

调查伪尼茨基亚多种群的防御机制,以防止Artemia salina nauplii的放牧.
探索P. multiseries对草食动物的分子和生理反应.

主要方法:

在Pseudo-nitzschia多系列和Artemia salina nauplii的共同培养中.
整合多组学 (代谢学) 和生理学分析.
量化多米酸 (DA) 和莉酸水平.

主要成果:

放牧诱导了二次代谢产量的增加,包括多米酸 (0.20 pg/细胞/天) 和桑酸 (1.88 倍增加).
藻类细胞的代谢效率降低,光合作用效率提高,生长速度降低.
观察到生物化学组成和能量代谢途径的转变是对放牧的反应.

结论:

伪尼茨基亚细胞采用特定的防御策略,包括改变代谢物概况和能量分配,当它们受到放牧压力时.
这些发现提供了关于有毒藻如何抵抗草食的分子理解.
这项研究强调了有害藻类繁殖中毒素生产,新陈代谢和生态相互作用之间的复杂相互作用.

关键词:

多米酸是多米酸的一种.牧场的压力压力是什么雅斯蒙酸是什么意思雅斯蒙酸多个omics的多个omics.伪尼茨基亚多个系列

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