相关实验视频

Updated: Jun 20, 2025

Physiological Characterization of the Coral Holobiont Using a New Micro-Respirometry Tool

Physiological Characterization of the Coral Holobiont Using a New Micro-Respirometry Tool

Published on: April 28, 2023

通过对象数杀细菌的注射来缓解珊瑚热应激

Qingsong Yang^1,2,3,4, Bing Yang^1,2,4,5, Bin Yang^1,2,3,4

¹CAS Key Laboratory of Tropical Marine Bio-Resources and Ecology, Guangdong Provincial Key Laboratory of Applied Marine Biology, South China, Sea Institute of Oceanology , Chinese Academy of Sciences, Guangzhou, 510301, China.

Marine biotechnology (New York, N.Y.)

|July 19, 2024

概括

定数灭细菌,Pseudoalteromonas piscicida SCSIO 43740,可以减轻珊瑚的热应激. 这种有益的细菌有助于保持珊瑚的健康和稳定性,通过在变暖的海洋下重塑珊瑚微生物群.

科学领域:

海洋生物学海洋生物学
微生物学微生物学
珊瑚礁生态珊瑚礁生态

背景情况:

全球变暖导致海水温度升高,导致珊瑚漂白和珊瑚礁退化.
用对珊瑚有益的微生物 (BMCs) 进行珊瑚微生物组工程是保护的关键策略.
质量灭 (QQ) 细菌显示出减轻珊瑚热应激的潜力.

研究的目的:

研究QQ细菌及其化合物的潜力,以减轻珊瑚的热应激.
从珊瑚衍生的菌株中选QQ细菌,并识别它们的质量检测抑制剂 (QSI).
为了评估QQ细菌注射对珊瑚Pocillopora damicornis在热应激下的影响.

主要方法:

选了75种珊瑚衍生细菌菌株的QQ活性.
从QQ细菌菌株Pseudoalteromonas piscicida SCSIO 43740中分离并确定了QSI化合物作为2,4-di-tert-butylphenol (2,4-DTBP).
进行了为期30天的受控实验,使用P. damicornis进行控制 (29°C),高温 (31°C) 和高温QQ细菌注射 (31°C+QQ细菌) 治疗.

主要成果:

在热应激下,QQ细菌SCSIO 43740注射显著缓解了P. damicornis的共生藻类损失和光合作用障碍.
在高温和高温之间,在QQ细菌群体中,没有观察到超氧化脱酶 (SOD) 和酶 (CAT) 酶活性的显著差异.
接种QQ细菌抑制了珊瑚微生物社区的β分散,并增强了在热应激下微生物共发生网络的稳定性.

结论:

通过重塑微生物相互作用并保持珊瑚微生物群的稳定性,QQ细菌注射减轻了珊瑚的热应激.
珊瑚中的Pseudoalteromonas piscicida SCSIO 43740证明了珊瑚中的益生菌功能,为珊瑚礁保护提供了一个新的微生物工具.
这项研究提供了QQ细菌作为珊瑚礁恢复和管理策略的一个有希望的方法的证据.

关键词:

对珊瑚有益的微生物珊瑚的漂白珊瑚的漂白微生物组工程是微生物组的工程.定量会灭细菌的定量会灭细菌热应力是一种热应力.

更多相关视频

Prospecting Microbial Strains for Bioremediation and Probiotics Development for Metaorganism Research and Preservation

Prospecting Microbial Strains for Bioremediation and Probiotics Development for Metaorganism Research and Preservation

Published on: October 31, 2019

Inducing Polyp Bail-out in Coral Colonies to Obtain Individualized Micropropagates for Laboratory Experimental Use

Inducing Polyp Bail-out in Coral Colonies to Obtain Individualized Micropropagates for Laboratory Experimental Use

Published on: April 28, 2022

相关概念视频

Bacterial Signaling

Bacterial Signaling

Bacterial signaling can occur within bacteria (intracellular) or between bacteria (intercellular). At times, a group of bacteria behaves like a community. To achieve this, they engage in quorum sensing, the perception of higher cell density that causes changes in gene expression. Quorum sensing involves both extracellular and intracellular signaling. The signaling cascade starts with a molecule called an autoinducer (AI). Individual bacteria produce AIs that move out of the bacterial cell...

Responses to Heat and Cold Stress

Responses to Heat and Cold Stress

Every organism has an optimum temperature range within which healthy growth and physiological functioning can occur. At the ends of this range, there will be a minimum and maximum temperature that interrupt biological processes.