Journal Article

FZJ-2025-04846

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Rapid mineralization of mineral-bound carboxyl-carbon of salicylic acid and phenylalanine

Konrad, A. (Corresponding author) ; Hofmann, D.FZJ* ; Siemens, J.Extern* ; Lang, F.Extern* ; Mulder, I.Extern* ; Stutz, K. P.Extern*

2026
Elsevier Science Amsterdam [u.a.]

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Please use a persistent id in citations: doi:10.1016/j.soilbio.2025.110016  doi:10.34734/FZJ-2025-04846

Abstract: Ligand-bound carboxylic acids are considered a stabilized fraction of mineral-adsorbed carbon in soil. Carboxyl-14C labeled phenylalanine or salicylic acid wereadsorbed onto goethite, kaolinite, or illite, and subsequently incubated in both loamy and sandy arable topsoil for three weeks. Contrary to our expectations, moremineral-adsorbed carboxyl-C was mineralized than remaining C in salicylic acid and phenylalanine irrespective of mineral type or soil due to competitive desorptionfollowed by preferential mineralization. Factors that control the desorbability of organic molecules are more important for their stabilization in the soil than sorption strength.

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Contributing Institute(s):

1. Agrosphäre (IBG-3)

Research Program(s):

1. 2173 - Agro-biogeosystems: controls, feedbacks and impact (POF4-217) (POF4-217)

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Database coverage:
; ; ; BIOSIS Previews ; Biological Abstracts ; Clarivate Analytics Master Journal List ; Current Contents - Agriculture, Biology and Environmental Sciences ; Ebsco Academic Search ; Essential Science Indicators ; IF >= 5 ; JCR ; Nationallizenz ; SCOPUS ; Science Citation Index Expanded ; Web of Science Core Collection ; Zoological Record

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