Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
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Toward Understanding the Ecophysiology of Freshwater and Marine Cyanobacteria under Different Salinities
https://orcid.org/0000-0002-9381-1771
https://orcid.org/0000-0002-6213-9054
The mechanism by which cyanobacteria have adapted from low to high salinity and ultimately diversified in marine environments remains poorly understood. To understand how freshwater and marine cyanobacteria respond to high salinity, we selected a marine cyanobacteria, Synechococcus sp. PCC7002, and freshwater cyanobacteria, Synechococcus elongatus PCC7942. Photosynthetic growth of PCC7002 and PCC7942 were enhanced and inhibited by the high salinity, respectively, which were also supported by the quantification of reducing equivalents and ATP in these two species. Growth under the high salinity reduced the photosynthetic activities for PCC7942, resulting in more oxidative stress, which was opposite of the effect of high salinity on PCC7002. Transcriptomic analysis demonstrated that those key genes involved in synthetic and energy metabolisms as well as certain processes for salinity acclimation and salinity signal transduction were significantly downregulated in PCC7942 and upregulated in PCC7002 under the high salinity, suggesting a potential functional regulatory mechanism from perception, transduction, and acclimation of cyanobacteria to high salinities. The findings of this study improve the understanding of cyanobacterial ecophysiology under different salinities and shed light on the evolutionary acclimation of cyanobacteria from freshwater to marine environments.
Phenotypic and transcriptomic analysis for the physiological responses of freshwater and marine cyanobacteria under different salinities.
Toward Understanding the Ecophysiology of Freshwater and Marine Cyanobacteria under Different Salinities
https://orcid.org/0000-0002-9381-1771
https://orcid.org/0000-0002-6213-9054
The mechanism by which cyanobacteria have adapted from low to high salinity and ultimately diversified in marine environments remains poorly understood. To understand how freshwater and marine cyanobacteria respond to high salinity, we selected a marine cyanobacteria, Synechococcus sp. PCC7002, and freshwater cyanobacteria, Synechococcus elongatus PCC7942. Photosynthetic growth of PCC7002 and PCC7942 were enhanced and inhibited by the high salinity, respectively, which were also supported by the quantification of reducing equivalents and ATP in these two species. Growth under the high salinity reduced the photosynthetic activities for PCC7942, resulting in more oxidative stress, which was opposite of the effect of high salinity on PCC7002. Transcriptomic analysis demonstrated that those key genes involved in synthetic and energy metabolisms as well as certain processes for salinity acclimation and salinity signal transduction were significantly downregulated in PCC7942 and upregulated in PCC7002 under the high salinity, suggesting a potential functional regulatory mechanism from perception, transduction, and acclimation of cyanobacteria to high salinities. The findings of this study improve the understanding of cyanobacterial ecophysiology under different salinities and shed light on the evolutionary acclimation of cyanobacteria from freshwater to marine environments.
Phenotypic and transcriptomic analysis for the physiological responses of freshwater and marine cyanobacteria under different salinities.
Toward Understanding the Ecophysiology of Freshwater and Marine Cyanobacteria under Different Salinities
https://orcid.org/0000-0002-9381-1771
https://orcid.org/0000-0002-6213-9054
The mechanism by which cyanobacteria have adapted from low to high salinity and ultimately diversified in marine environments remains poorly understood. To understand how freshwater and marine cyanobacteria respond to high salinity, we selected a marine cyanobacteria, Synechococcus sp. PCC7002, and freshwater cyanobacteria, Synechococcus elongatus PCC7942. Photosynthetic growth of PCC7002 and PCC7942 were enhanced and inhibited by the high salinity, respectively, which were also supported by the quantification of reducing equivalents and ATP in these two species. Growth under the high salinity reduced the photosynthetic activities for PCC7942, resulting in more oxidative stress, which was opposite of the effect of high salinity on PCC7002. Transcriptomic analysis demonstrated that those key genes involved in synthetic and energy metabolisms as well as certain processes for salinity acclimation and salinity signal transduction were significantly downregulated in PCC7942 and upregulated in PCC7002 under the high salinity, suggesting a potential functional regulatory mechanism from perception, transduction, and acclimation of cyanobacteria to high salinities. The findings of this study improve the understanding of cyanobacterial ecophysiology under different salinities and shed light on the evolutionary acclimation of cyanobacteria from freshwater to marine environments.
Phenotypic and transcriptomic analysis for the physiological responses of freshwater and marine cyanobacteria under different salinities.
Toward Understanding the Ecophysiology of Freshwater and Marine Cyanobacteria under Different Salinities
Chen, Huiting (Autor:in) / Chen, Jinyu (Autor:in) / Huang, Ranran (Autor:in) / Song, Chao (Autor:in) / Wang, Shuguang (Autor:in) / Yan, Zhen (Autor:in)
ACS ES&T Water ; 3 ; 2863-2873
08.09.2023
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
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