A bacteriome is a specialized organ, found mainly in some insects, that hosts endosymbiotic bacteria. Bacteriomes contain specialized cells, called bacteriocytes, that provide nutrients and shelter to the bacteria while protecting the host animal. In exchange, the bacteria provide essentials like vitamins and amino acids to the host insect. Bacteriomes also protect the bacteria from the host's immune system, with insects secreting antimicrobial peptides such as the coleoptericin secreted by weevils to keep bacteria within the bacteriome.[1]
Some insects, like the glassy-winged sharpshooter, host more than one species of bacteria.[2] In armored scale insects, bacteriomes have unique genetic and sexual properties. For example, they have five copies of each chromosome—including two copies of the mother's complete genome.[3]
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How to Say or Pronounce Microbiome
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See also
- Trophosome — organ found in some marine worms that contain symbiotic, chemosynthetic bacteria
References
- ^ Masson, Florent; Zaidman-Rémy, Anna; Heddi, Abdelaziz (26 May 2016). "Antimicrobial peptides and cell processes tracking endosymbiont dynamics". Philosophical Transactions: Biological Sciences. 371 (1695): 1–9. doi:10.1098/rstb.2015.0298. JSTOR 24768785. PMC 4874395. PMID 27160600.
- ^ Jensen, Mari N. (9 June 2006). "Three-Way Symbiosis Supplies Insect Pest With Well-Rounded Diet". Phys.org.
- ^ Normark, Benjamin B. (2004). "The Strange Case of the Armored Scale Insect and Its Bacteriome". PLOS Biology. 2 (3): e43. doi:10.1371/journal.pbio.0020043. PMC 368156. PMID 15024412.
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This page was last edited on 3 December 2023, at 15:15