Fractionation of stable nitrogen isotopes (15N/14N) during enzymatic deamination of glutamic acid: Implications for mass and energy transfers in the biosphere

• Published in: GEOCHEMICAL JOURNAL Vol. 52; no. 3; pp. 273 - 280
• Main Authors: Goto, Akiko S., Miura, Kasumi, Korenaga, Takashi, Hasegawa, Takashi, Ohkouchi, Naohiko, Chikaraishi, Yoshito
• Format: Journal Article
• Language: English
• Published: GEOCHEMICAL SOCIETY OF JAPAN 30.05.2018
• Subjects: deamination; energy transfer; glutamic acid; isotopic fractionation factor (α); nitrogen isotopic fractionation

Isotopic fractionation of nitrogen associated with the trophic transfer of amino acids in food webs has recently been used as a powerful tool to estimate the accurate trophic levels of heterotrophic organisms. During the grazing process (i.e., trophic transfer), the amino acid, glutamic acid, is sig...