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Changes in ATP Sulfurylase Activity in Response to Altered Cyanobacteria Growth Conditions.


ABSTRACT: We investigated variations in cell growth and ATP Sulfurylase (ATPS) activity when two cyanobacterial strains-Synechocystis sp. PCC6803 and Synechococcus sp. WH7803-were grown in conventional media, and media with low ammonium, low sulfate and a high CO2/low O2 atmosphere. In both organisms, a transition and adaptation to the reconstructed environmental media resulted in a decrease in ATPS activity. This variation 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 throughout Earth history.

SUBMITTER: Gastoldi L 

PROVIDER: S-EPMC8209453 | biostudies-literature | 2021

REPOSITORIES: biostudies-literature

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Changes in ATP Sulfurylase Activity in Response to Altered Cyanobacteria Growth Conditions.

Gastoldi Lucia L   Ward Lewis M LM   Nakagawa Mayuko M   Giordano Mario M   McGlynn Shawn E SE  

Microbes and environments 20210101 2


We investigated variations in cell growth and ATP Sulfurylase (ATPS) activity when two cyanobacterial strains-Synechocystis sp. PCC6803 and Synechococcus sp. WH7803-were grown in conventional media, and media with low ammonium, low sulfate and a high CO<sub>2</sub>/low O<sub>2</sub> atmosphere. In both organisms, a transition and adaptation to the reconstructed environmental media resulted in a decrease in ATPS activity. This variation appears to be decoupled from growth rate, suggesting the enz  ...[more]

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