Yinzhao Wang

Abstract Hadal trenches, plunging beyond six kilometers depth, harbor a dynamic yet enigmatic microbial biosphere. From ~10 km depth Kermadec Trench sediments, we integrated metagenomics, in situ metatranscriptomics, and phylogenetics to reconstruct 300 prokaryotic species and 186,496 viral populations.

Abstract Methanogenic degradation of long-chain fatty acids has traditionally been thought to occur through syntrophic partnerships between fatty acid-degrading bacteria and methanogenic archaea. However, recent genomic evidence suggests that certain archaea may independently carry out the entire process. Here we report the enrichment of an archaeon from the class Archaeoglobi, Candidatus Methanoglobus sphaerolipidus DLY3, from hot spring sediments in Tengchong, China.

Introduction Hadal zones, representing ocean regions with water depth exceeding 6 km below sea level (b.s.l.), constitute the deepest places of Earth’s solid surface.1,2,3 Despite covering less than 1% of the global ocean area, hadal zones encompass 45% of the ocean’s total depth range and consist primarily of 37 hadal trenches located at convergent tectonic plate boundaries, extending down to 11 km b.s.l. at the Challenger Deep in the Mariana Trench.1,2,3 These trenches were formed through...