English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

Pantoea  sp. IMH is the only bacterium found in genus  Pantoea  with a high As resistance capacity, but its molecular mechanism is unknown. Herein, the organization, function, and evolution of  ars  genes in IMH are studied starting with analysis of the whole genome. Two  ars  systems -  ars1 (arsR1B1C1H1 ) and  ars2 (arsR2B2C2H2 ) - with low sequence homology and two  arsC -like genes, were found in the IMH genome. Both  ars1  and  ars2  are involved in the As resistance, where  ars1  is the major contributor at 15 °C and  ars2  at 30 °C. The difference in the behavior of these two  ars  systems is attributed to the disparate activities of their  arsR  promoters at different temperatures. Sequence analysis based on concatenated ArsRBC indicates that  ars1  and  ars2  clusters may be acquired from  Franconibacter helveticus  LMG23732 and  Serratia marcescen s (plasmid R478), respectively, by horizontal gene transfer (HGT). Nevertheless, two  arsC -like genes, probably arising from the duplication of  arsC , do not contribute to the As resistance. Our results indicate that  Pantoea  sp. IMH acquired two different As resistance genetic systems by HGT, allowing the colonization of changing ecosystems, and highlighting the flexible adaptation of microorganisms to resist As.

Arsenic resistance strategy in Pantoea sp. IMH: Organization, function and evolution of ars genes