The pitcher plant Sarracenia purpurea can directly acquire organic nitrogen and short-circuit the inorganic nitrogen cycle.

There was a highly significant positive relationship between tissue 13 C and 15 N for pitchers harvested 3-h after receiving U-Phe at both Fort Albany ( P = 1.28×10 −8 ; Fig. 3C ) and Tom Swamp ( P = 7.17×10 −8 ; Fig. 3D ).

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