Growth rate hypothesis and efficiency of protein synthesis under different sulphate concentrations in two green algae
Jazyk angličtina Země Spojené státy americké Médium print-electronic
Typ dokumentu časopisecké články, práce podpořená grantem
PubMed
25851030
DOI
10.1111/pce.12551
Knihovny.cz E-zdroje
- Klíčová slova
- RNA, growth, phosphorus, sulphate,
- MeSH
- Chlorophyta růst a vývoj metabolismus MeSH
- dusík metabolismus MeSH
- mořská voda chemie MeSH
- oceány a moře MeSH
- proteosyntéza * MeSH
- ribozomy metabolismus MeSH
- RNA metabolismus MeSH
- sírany metabolismus MeSH
- Publikační typ
- časopisecké články MeSH
- práce podpořená grantem MeSH
- Geografické názvy
- oceány a moře MeSH
- Názvy látek
- dusík MeSH
- RNA MeSH
- sírany MeSH
The growth rate hypothesis (GRH) predicts a positive correlation between growth rate and RNA content because growth depends upon the protein synthesis machinery. The application of this hypothesis to photoautotrophic organisms has been questioned. We tested the GRH on one prasinophycean, Tetraselmis suecica, and one chlorophycean, Dunaliella salina, grown at three sulphate concentrations. Sulphate was chosen because its concentration in the oceans increased through geological time and apparently had a role in the evolutionary trajectories of phytoplankton. Cell protein content and P quota were positively related to the RNA content (r = 0.62 and r = 0.74, respectively). The correlation of the RNA content with growth rates (r = 0.95) indicates that the GRH was valid for these species when growth rates were below 0.82 d(-1) .
Citace poskytuje Crossref.org
Effect of sulfate availability on phytoplankton stoichiometry
