AI Article Synopsis
- Floridean starch and floridoside are the main carbohydrate storage forms in red algae, but their complete metabolic pathways and gene regulation are not fully understood.
- This study identified the genes involved in these pathways and examined their expression and metabolite levels under continuous dark conditions.
- Results showed that, unlike floridoside that was consumed, floridean starch levels remained stable even as certain biosynthesis genes were upregulated, revealing the intricate metabolic network and gene origins involved for the first time.
Article Abstract
Floridean starch and floridoside are the main storage carbohydrates of red algae. However, their complete metabolic pathways and the origin, function, and regulatory mechanism of their pathway genes have not been fully elucidated. In this study, we identified their metabolic pathway genes and analyzed the changes in related gene expression and metabolite content in under continuous dark conditions. Our results showed that genes from different sources, including eukaryotic hosts, cyanobacteria, and bacteria, were combined to construct floridean starch and floridoside metabolic pathways in . Moreover, compared with those in the control, under continuous dark conditions, floridean starch biosynthesis genes and some degradation genes were significantly upregulated with no significant change in floridean starch content, whereas floridoside degradation genes were significantly upregulated with a significant decrease in floridoside content. This implies that floridean starch content is maintained but floridoside is consumed in under dark conditions. This study elucidates the "floridean starch-floridoside" metabolic network and its gene origins in for the first time.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8703398 | PMC |
| http://dx.doi.org/10.3390/md19120664 | DOI Listing |
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Article Synopsis
- Floridean starch and floridoside are the main carbohydrate storage forms in red algae, but their complete metabolic pathways and gene regulation are not fully understood.
- This study identified the genes involved in these pathways and examined their expression and metabolite levels under continuous dark conditions.
- Results showed that, unlike floridoside that was consumed, floridean starch levels remained stable even as certain biosynthesis genes were upregulated, revealing the intricate metabolic network and gene origins involved for the first time.
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