TY  - JOUR
AU  - Konrad, Alexander
AU  - Hofmann, Diana
AU  - Siemens, Jan
AU  - Lang, Friederike
AU  - Mulder, Ines
AU  - Stutz, Kenton P.
TI  - Rapid mineralization of mineral-bound carboxyl-carbon of salicylic acid and phenylalanine
JO  - Soil biology & biochemistry
VL  - 212
SN  - 0038-0717
CY  - Amsterdam [u.a.]
PB  - Elsevier Science
M1  - FZJ-2025-04846
SP  - 110016 -
PY  - 2026
AB  - 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.
LB  - PUB:(DE-HGF)16
DO  - DOI:10.1016/j.soilbio.2025.110016
UR  - https://juser.fz-juelich.de/record/1048724
ER  -