C:N:P molar ratios (±std) of cultures of Fungi and Bacteria

Range Table - link unitless
Organism Microbes
Reference Céline Mouginot et al., Elemental stoichiometry of Fungi and Bacteria strains from grassland leaf litter, Soil Biology and Biochemistry Volume 76, September 2014, Pages 278–285 link pp.280-1 table 1
Method Abstract: "In most terrestrial environments, [investigators'] knowledge of the elemental composition and stoichiometry of microorganisms stems from indirect whole community analyses. In contrast, [they] have little direct knowledge of the elemental composition of specific microorganisms and the variation between and within Fungi and Bacteria. To address this issue, [they] isolated and identified the elemental content of 87 strains of Fungi and Bacteria isolated from grassland leaf litter. The isolated strains were affiliated with a broad range of diversity including Ascomycota and Basidiomycota for Fungi, and Proteobacteria, Bacteroidetes, and Actinobacteria for Bacteria."
Comments P.281 right column 2nd paragraph: "[Investigators] grew the cultures in a high carbon to nutrient media to reflect the availability of these elements in soil and leaf litter environments. Across all strains, the geometric mean C:P, N:P, and C:N molar ratios [±95% CI] were 88.1 [79.4,97.7], 14.7 [13.3,16.4], and 6.1 [5.5,6.8], respectively (Table 1). All three ratios were significantly different from the soil microbial biomass ratios reported previously (Fig. 1, two-sample t-test, p < 0.05). However, there was also an overlap in the distribution of elemental ratios between [their] strains and field communities (Fig. 1). The geometric mean C:P ratio was significantly lower than the Redfield C:P ratio (one-sample t-test, p < 0.001), but the C:N and N:P ratios were not significantly different from Redfield ratios. The fungal and bacterial strains also differed from one another (Fig. 2, Table 1). Both the C:P and C:N geometric mean ratios were significantly higher for Fungi compared to Bacteria (two-sample t-test, p < 0.001). The N:P ratios were more similar for the two domains, but slightly higher for Bacteria (two-sample t-test, p = 0.046)."
Entered by Uri M
ID 113035