In a recent study of six strains of Prochlorococcus cyanobacteria, temperature had a weakly significant positive effect on N:P and C:P, but the ratios decreased again as temperature surpassed the optimum temperature for growth ( Martiny et al., 2016 ).
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Growth, stoichiometry and cell size; temperature and nutrient responses in haptophytes.
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This is expected, because under P-limitation P and RNA more directly reflect the non-storage requirements, and P-content is not confounded by excess storage (luxury consumption), which may be significant under nutrient replete conditions ( Klausmeier et al., 2008 ).