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Updated: May 9, 2026

A Versatile Glass Jar System for Semihydroponic Root Exudate Profiling
Published on: November 17, 2023
Molecular classification of the natural exudates of the rosids
Joseph B Lambert1, Eric W Donnelly, Eric A Heckenbach
1Department of Chemistry, Trinity University, One Trinity Place, San Antonio, TX 78212-1200, USA. jlambert@northwestern.edu
Abstract:
Exudates of the rosid clade of the eudicots have been surveyed and characterized by carbon-13 and proton nuclear magnetic resonance spectroscopy. Of 554 samples divided roughly equally between the subclades fabids and malvids, about two-fifths are resins, a third gums, one-ninth gum resins, one-twelfth kinos, and the remaining not affiliated with these four main molecular classes. Two small new molecular classes, respectively from the Clusiaceae (xanthics) and the Zygophyllaceae (guaiacs), are identified and described.
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