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Insect secretions stabilizing obligate microbial symbioses
H
DOI:10.1016/j.cois.2026.101559.png)
Abstract
En 中文
• Host-derived secretions sustain obligate, genome-eroded symbionts through the extracellular transmission phase by compensating for stress-response capacity lost to reductive evolution. • Canonical insect protein families such as Yellow proteins, odorant-binding protein homologs, and mucins have been independently co-opted as extracellular symbiont scaffolds across multiple insect lineages. • Convergent glycosylation across different peptide scaffold types points to post-translational modification, rather than protein fold, as a shared biochemical solution to extracellular symbiont protection.
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