Metagenomic and metabolomic analysis of a bryozoan-associated microbial complex from the Hanjiang River, China
Background Bryozoans are ancient colonial animals that have existed for over 470 million years and are widely distributed across aquatic environments. Recently, many spherical colloids (average diameter{approx}1 meter in diameter), containing bryozoans and diverse microorganisms, were found in the Hanjiang river in China. In this study, we investigated these bryozoan-dominated microbial complexes…
In a recent study of a mysterious bryozoan-associated microbial complex found in the Hanjiang River in China, researchers employed metagenomic sequencing and metabolomic profiling to uncover the intricate relationships between its diverse inhabitants. The study revealed that the microbial structure is dominated by bryozoans, eukaryotes such as fungi, microalgae, and parasites, as well as prokaryotes like bacteria and viruses.
Together, these organisms form a highly integrated and interdependent consortium that maintains community function and stability, resulting in a regular microbial complex that has grown in size over time.
Proteobacteria, a group known to produce bryostatins in response to bryozoan signals, were also found to be particularly abundant within the complex. This suggests that a decrease or even loss in virulence may occur when pathogenic microorganisms become members of the community. This marks the first study to examine the composition and metabolites of this unusual microorganism complex, shedding light on the complex web of interactions within the microbial community.
The study highlights the intricate coordination and competition between eukaryotes and prokaryotes, demonstrating that both can contribute to the formation of a stable composite structure.
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