益生菌可以防止热敏珊瑚暴露于短期热应激的死亡
Mareike de Breuyn1, Malte Ostendarp1, Yusuf C El-Khaled2
1Marine Ecology Department, Faculty of Biology and Chemistry, University of Bremen, Bremen 28359, Germany.
ISME communications
|March 28, 2025
概括
对珊瑚有益的微生物 (BMCs) 迅速保护热敏珊瑚免受急性热应激,防止死亡并保持珊瑚健康. 这种益生菌干预显示了对对抗海洋热浪的珊瑚礁管理策略的重大前景.
科学领域:
- 海洋生物学 海洋生物学
- 珊瑚礁生态 珊瑚礁生态
- 微生物学 微生物学
背景情况:
- 珊瑚益生菌 (珊瑚有益微生物-BMCs) 是一种提高珊瑚健康的新方法.
- 虽然BMC可以减轻长期的热应激,但它们对短期急性热应激的有效性尚未得到充分研究.
研究的目的:
- 调查 BMC 在短期热应激期间对两种红海硬珊瑚物种的影响.
- 评估BMCs对急性热应激的快速保护能力.
主要方法:
- 两个红海硬珊瑚物种,Acropora cf. 黑 (Hemprichii) 和白 (Pocillopora verrucosa) 两种温度调节 (26°C和32°C) 进行了48小时.
- 珊瑚碎片被分为BMC注射和对照组,在暴露于热应激之前2小时内给予BMC.
主要成果:
- 在Acropora cf.中,BMC补充剂显著预防了死亡率. 在32°C的hemprichii中,对照对象的死亡率为100%.
- 用益生菌处理的阿克罗波拉 (Acropora),参见 汉普里奇表现出保存的初级产量和显著更高的藻类细胞密度,F比率,甲和甲度.
- 在32°C暴露期间,Pocillopora verrucosa在任何治疗组都表现出完全的生存和没有副作用.
结论:
- BMC接种提供了快速保护,防止热应激导致的急性死亡率和热敏珊瑚的光生理损伤,如Acropora cf. 这是一个hemprichii.
- 在48小时内可以观察到BMCs的有益影响,这凸显了在海洋热浪之前及时干预的重要性.
- BMC 应用是管理自然珊瑚礁环境中热敏珊瑚的有希望的策略,珊瑚礁面临着日益增长的热应激.
关键词:
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