The HOG signal pathway contributes to survival strategies of the piezo-tolerant fungus <i>Aspergillus sydowii</i> DM1 in hadal sediments.

ABSTRACT: The hadal zone, one of Earth's most extreme ecosystems, harbors diverse and unique microbial communities adapted to its harsh environmental conditions, including high hydrostatic pressure (HHP) and low temperatures. Within these communities, deep-sea fungi play a critical role in geochemical cycling and marine ecosystem functioning; however, research on their cultivable strains and adaptation mechanism remains scarce. In this study, the piezo-tolerant fungus Aspergillus sydowii DM1, isolated from the Mariana Trench sediments (10,898 m), was selected as a representative strain. A comprehensive genome analysis using high-throughput sequencing revealed a genome size of 34.5 Mb, with 12,241 predicted genes. Functional annotations across multiple databases identified a substantial number

SUBMITTER: Hu G 

PROVIDER: S-EPMC12442359 | biostudies-literature | 2025 Sep

REPOSITORIES: biostudies-literature