Research has shown that oceans can play a key role in addressing important global challenges such as the shortage of antimicrobial medicines, plastic pollution, and the development of novel enzymes for genome editing.

Over the past two decades, scientists have collected a large number of microbial genomes from the ocean, but using this information for practical applications has been challenging. A recent study, led by BGI Research in China in collaboration with several universities, analyzed nearly 43,200 genomes of micro-organisms from marine samples, revealing a wide diversity of 138 distinct groups.

The researchers gained insights into how genome sizes evolve, the balance between CRISPR-Cas systems and antibiotic resistance genes in ocean microbes, and discovered a new CRISPR-Cas9 system and antimicrobial peptides. These findings have the potential to contribute to the development of new antimicrobial medicines, which are crucial for combating infections in humans, animals, and plants.

Additionally, the study identified three enzymes that can break down plastic waste, specifically polyethylene terephthalate (PET), which is a major environmental concern. Laboratory experiments have confirmed the effectiveness of these findings, highlighting the potential applications of ocean microbiomes in biotechnology and medicine.

The study emphasizes the importance of understanding marine microbial diversity and its evolution, as well as the role of marine microbes in global processes such as carbon fixation and nutrient recycling. By utilizing the wealth of genetic information from marine microbiomes, researchers can discover new genetic tools and bioactive compounds for addressing global challenges.

The creation of a new publicly available database with around 24,200 species-level genomes from various marine environments worldwide enhances our knowledge of marine microbiomes. By leveraging advanced technologies like deep learning-based genome mining and laboratory experiments, researchers can harness the potential of marine microbiomes to address pressing global issues like antimicrobial shortages and ocean pollution, ultimately improving human well-being and promoting environmental sustainability.



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