![]() ![]() "This suggests that the sponges' ability to interact with the microbiome was an evolutionary early development," Vargas says. Sponges possess proteins involved in regulating interactions between sponge and microbiome, and those appear to be responsible for the sponges' ability to modify their morphology in response to changes in the microbiome. Sponges are organisms with a very simple structure that, in the course of evolution, split off from the rest of the animal kingdom more than 600 million years ago. The researchers see their findings as an indication of deep evolutionary origins for phylogenetic interaction between microbiome and host. A new study, published in Molecular Biology and Evolution and led by Assistant Professor Sergio Vargas and Professor Gert Wörheide from the Department of Earth and Environmental Sciences and the GeoBio-Center of the LMU, have now discovered molecular mechanisms in the model organism Lendenfeldia chondrodes through which the sponges respond actively to changes in their microbiome.
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