Advanced genetic techniques and #microscopy offer new insights into anaerobic ciliate and methanogen #symbiosis https://phys.org/news/2024-10-advanced-genetic-techniques-microscopy-insights.html

Methanogenic #symbionts of anaerobic #ciliates are host and habitat specific https://academic.oup.com/ismej/article/18/1/wrae164/7737421 #ISEPpapers by @joro

"This study provides a clearer understanding of how anaerobic ciliates have evolved a mix transmission mode to both maintain and replace their symbionts over time"

#microbes #protists #bacteria #archaea #methanogenesis #biology

New #ISEPpapers! Updated classification of the phylum Parabasalia https://onlinelibrary.wiley.com/doi/full/10.1111/jeu.13035

"Most are harmless or beneficial gut #symbionts of #animals, but some have turned into #parasites in other body compartments, the most notorious example being #Trichomonas vaginalis in humans."

#protists #microbes #symbiosis #evolution #biology

Content warning: Published Science. Symbiosis in beetles Reveal/hide

#Bostrichidae #beetles have two #symbionts with important functions. One encodes the pathways to produce tyrosine precursors and is presumably involved in #cuticle and #exoskeleton formation. The second recycles urea, synthesizes lysine, and is strictly #evolving with its host. These types of "dual symbioses" have only been described in sap-feeding #Hemiptera.

#Biology #Entomology #Evolution #Bacteria #Coevolution #Genome

https://www.biorxiv.org/content/10.1101/2022.12.09.519726v1

Cuticle supplementation and nitrogen recycling by a dual bacterial symbiosis in a family of xylophagous beetles (Coleoptera: Bostrichidae)

Many insects engage in stable nutritional symbioses with bacteria that supplement limiting essential nutrients to their host.

^bioRxiv