Examinando por Autor "Yunrong Chai"

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    Ítem
    Insights into the diversity and survival strategies of soil bacterial isolates from the Atacama Desert
    (2024) Alicyn Reverdy; Daniel Hathaway; Jessica Jha; Gabriel Michaels; Jeffrey Sullivan; Daniela Diaz McAdoo; Carlos Riquelme; Yunrong Chai; Veronica Godoy Carter
    The Atacama Desert, the driest, with the highest radiation, and one of the most ancient deserts in the world, is a hostile environment for life. We have a collection of 74 unique bacterial isolates after cultivation and confirmation by 16S rRNA gene sequencing. Pigmentation, biofilm formation, antimicrobial production against Escherichia coli MG1655 and Staphylococcus aureus HG003,and antibiotic resistance were assessed on these isolates. We found that approximately a third of the colonies produced pigments, 80% of isolates formed biofilms, many isolates produce growth inhibiting activities against E. coliand/orS. aureus, and many were resistant to antibiotics. The functional characterization of these isolates gives us insight into the adaptive bacterial strategies in harsh environments and enables us to learn about their possible use in agriculture,healthcare, or biotechnology.
  • Miniatura
    Ítem
    Whole-genome sequencing of a Janthinobacterium sp. isolatedfrom the Patagonian Desert
    (2024) Nicole T. Cavanaugh; Girish Kumar; Alicyn Reverdy Pearson; Julia Colbert; Carlos Riquelme; André O. Hudson; Yunrong Chai; Veronica Godoy Carter
    Janthinobacterium is a genus of Gram-negative environmental bacteria that survive extreme conditions by forming biofilms and producing pigments. Janthinobacterium sp. LS2A, an extremophile isolated from soil in the Chilean Patagonia, contains seven known biosynthetic gene clusters, including the purple pigment violacein, which may aid in its survival in harsh environments.