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Gas chromatographic/mass spectrometric and tandem mass spectrometric investigations of synthetic amino acid conjugates of jasmonic acid and endogenously occurring related compounds from Vicia faba L
Author(s) -
Schmidt Jürgen,
Kramell Robert,
Brückner Christian,
Schneider Gernot,
Sembdner Günther,
Schreiber Klaus,
Stach Joachim,
Jensen Einar
Publication year - 1990
Publication title -
biomedical and environmental mass spectrometry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.475
H-Index - 121
eISSN - 1096-9888
pISSN - 0887-6134
DOI - 10.1002/bms.1200190508
Subject(s) - chemistry , isoleucine , chromatography , valine , mass spectrometry , leucine , tandem mass spectrometry , phenylalanine , amino acid , jasmonic acid , alanine , organic chemistry , biochemistry , salicylic acid
Some partial synthetic amino acid (( S )‐alanine, ( S )‐leucine, ( S )‐isoleucine, ( S )‐aspartic acid, ( S )‐glutamic acid, ( S )‐phenylalanine, ( S )‐ and ( R )‐valine) conjugates of the plant growth regulator (‐)‐jasmonic acid (JA) were investigated as methyl esters by capillary gas chromatography/mass spectrometry. By gas chromatographic data (retention indices) as well as by mass spectral behaviour all these substances can be differentiated unequivocally. In addition, the distinction between the leucine and isoleucine JA conjugates was carried out by mass‐analysed ion kinetic energy spectroscopy (tandem mass spectrometry). Based on this some naturally occurring ( S )‐isoleucine conjugates of (‐)‐JA, (+)‐7‐iso‐JA and related compounds as well as the ( S )‐leucine and ( S )‐phenylalanine conjugates of (‐)‐JA could be identified from extracts of the broad bean Vicia faba L.