0.04 to 0.3 Unitless
||Karpinets TV, Greenwood DJ, Sams CE, Ammons JT. RNA:protein ratio of the unicellular organism as a characteristic of phosphorous and nitrogen stoichiometry and of the cellular requirement of ribosomes for protein synthesis. BMC Biol. 2006 Sep 5 4: 30. p.2/10 left column top paragraphPubMed ID16953894
||Geider RJ, La Roche J: Redfield revisited: variability in the N:P ratio of phytoplankton and its biochemical basis. Eur J Phycol 2002, 37: 1-17.
||For marine phytoplankton, the variations
in P:N ratio by mass are between 0.04 and 0.30, with
an overall average close to the Redfield ratio of 0.14 (primary source).