Subzero cell division, respiration, and genomic traits of cryophilic <i>Arthrobacter agilis</i> Ant-EH-1 isolated from cold-arid Antarctic mineral soils.

ABSTRACT: Arthrobacter are commonly isolated from cold soil environments globally, including those that regularly reach sub-freezing temperatures, suggesting that Arthrobacter have significant potential for growth and activity under temperature and stress extremes. Arthrobacter agilis strain Ant-EH-1 was isolated from nutrient-poor, cold-arid mineral soils from Elephant Head, Antarctica and its growth and activity at sub-freezing temperatures were characterized in this study. We observed different optimal temperatures for cell division compared with aerobic heterotrophic respiration in A. agilis Ant-EH-1. Cell division was observed from at least -5 °C to 30 °C, with the optimal (fastest) growth rate occurring at 25 °C. Microbial respiration was measured from -5 °C to 30 °

SUBMITTER: Wood C 

PROVIDER: S-EPMC12602508 | biostudies-literature | 2025

REPOSITORIES: biostudies-literature