释放红海珊瑚益生菌的基因组潜力
Inês Raimundo1, Phillipe M Rosado1, Adam R Barno1
1Biological and Environmental Science and Biological and Environmental Science and Engineering Division (BESE), King Abdullah University of Science and Technology, Biological and Environmental Science and Engineering Division, Thuwal, Saudi Arabia.
Scientific reports
|June 24, 2024
概括
本研究引入了一个in silico框架,用于识别对珊瑚有益的微生物 (BMC). 这种方法有助于选择有效的BMC菌株,以增强珊瑚的健康和对环境压力因素的抵抗力.
科学领域:
- 海洋生物学 海洋生物学
- 微生物学 微生物学
- 基因组学就是基因组学.
背景情况:
- 珊瑚礁面临着气候变化的重大威胁,增加了漂白易感性和死亡率.
- 对珊瑚有益的微生物 (BMC) 对于减轻珊瑚压力和改善珊瑚礁健康至关重要.
- 目前的BMC选择依赖于传统的测试,需要更有效的选方法.
研究的目的:
- 开发和应用一个全面的in silico框架,用于探索和识别对珊瑚有益的微生物 (BMC).
- 分析假定BMC菌株的基因组数据,寻找与珊瑚健康相关的特征和机制.
- 提出新的BMC特征和机制,以提高珊瑚的弹性和恢复.
主要方法:
- 从红海珊瑚样本中提取高质量的DNA.
- 用PacBio测序对6个假定的BMC菌株进行基因组分析.
- 在体内识别BMC特征,机制,菌体和二次代谢产物.
主要成果:
- 识别已知和新的BMC特征和机制,包括化学毒剂,菌体和各种二次代谢物.
- 在两个BMC菌株中检测出prophages,表明可能存在细菌分布.
- 具有抗微生物和保护作用的二次代谢物 (烯,乙,兰西,拉索) 的表征.
结论:
- 开发的in silico框架有效地识别了对珊瑚有益的微生物 (BMC) 以及它们的相关特征.
- 已识别的二次代谢物提供了对热应激,盐度,氧化应激和辐射的保护,这对珊瑚的生存至关重要.
- 该框架支持选择优质的BMC菌株用于珊瑚微生物组康复,弹性和恢复工作.
相关概念视频
Genomic DNA in Prokaryotes
The genome of most prokaryotic organisms consists of double-stranded DNA organized into one circular chromosome in a region of cytoplasm called the nucleoid. The chromosome is tightly wound, or supercoiled, for efficient storage. Prokaryotes also contain other circular pieces of DNA called plasmids. These plasmids are smaller than the chromosome and often carry genes that confer adaptive functions, such as antibiotic resistance.
Genomic Diversity in Bacteria
Although bacterial genomes are much...
Genomic Diversity in Bacteria
Although bacterial genomes are much...
Red Algae
Red algae, also known as rhodophytes, are primarily found in marine environments, though some species inhabit freshwater and terrestrial ecosystems. These organisms exist in both unicellular and multicellular forms, with some multicellular varieties reaching macroscopic sizes.As phototrophic organisms, red algae contain chlorophyll a; however, their chloroplasts lack chlorophyll b. Instead, they possess phycobiliproteins, which serve as major light-harvesting pigments, similar to those found in...
Marine Microbial Ecology
Marine microbial ecosystems are shaped by distinct physicochemical limits, including high salinity, low nutrient availability, and fluctuating oxygen levels. These conditions favor smaller microbial cell sizes, which maximize their surface-to-volume ratio for efficient nutrient uptake.Microbial activity and community composition are closely linked to biogeochemical cycles, particularly in dynamic environments like estuaries, where halotolerant microbes thrive in response to variable salinity...
Probiotics
Probiotics are live, non-pathogenic microorganisms that confer health benefits by modulating the gut microbiota. The human gastrointestinal tract harbors a complex microbial ecosystem, and the balance of this microbiota is crucial for digestive and systemic health. Among the most extensively studied and utilized probiotics are species formerly classified within the genera Lactobacillus and Bifidobacterium. These organisms not only naturally colonize the human gut but are also consumed through...
Bioreactor Controls-III
Strain improvement is a foundational strategy in industrial microbiology aimed at maximizing microbial productivity, particularly because natural isolates typically yield commercially valuable products in very low concentrations. Although optimizing the culture medium and environmental conditions can improve yields, these adjustments are inherently limited by the organism’s genetic potential. As a result, the focus shifts toward genetic modifications to enhance biosynthetic capacity. The...
Microbiota Modulation by Antibiotics
Antibiotics have revolutionized modern medicine by saving countless lives from bacterial infections. However, their widespread use has inadvertently harmed the delicate balance of the human gut microbiota. The gut microbiota, a complex community of bacteria, archaea, viruses, and fungi, plays a vital role in regulating metabolism, immune responses, and maintaining intestinal health. Antibiotics, especially broad-spectrum types, disrupt this ecosystem by eradicating both harmful and beneficial...


