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bioRxiv · 10.1101/2020.11.11.378158

Changes in ATP sulfurylase activityin response to altered cyanobacteria growth conditions.

Gastoldi, L.·Ward, L. M.·Nakagawa, M.·Giordano, M.·McGlynn, S. E.
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Abstract

Here we investigated variations in cell growth and ATP sulfurylase activity when two cyanobacterial strains - Synechocystis sp. PCC6803 and Synechococcus sp. WH7803 - were grown comparatively between conventional media and media with low ammonium, low sulfate and a controlled high CO2/low O2 atmosphere, which might resemble some Precambrian environments. In both organisms, a transition and adaptation to the reconstructed environmental media resulted in a decrease in ATPS specific activity. This decrease in activity appears to be decoupled from growth rate, suggesting the enzyme is not rate-limiting in S assimilation and raising questions about the role of ATPS redox regulation in cell physiology and thorughout history.

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Gastoldi, L., Ward, L. M., Nakagawa, M., Giordano, M., McGlynn, S. E.. 2020-11-11. Changes in ATP sulfurylase activityin response to altered cyanobacteria growth conditions.. https://doi.org/10.1101/2020.11.11.378158

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