Article (Scientific journals)
Long-Term Manuring Enhanced Compositional Stability of Glomalin-Related Soil Proteins through Arbuscular Mycorrhizal Fungi Regulation
Yang, Hongbo; Cai, Zejiang; De Clerck, Caroline et al.
2024In Agriculture, 14 (9), p. 1510
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Keywords :
arbuscular mycorrhizal fungi; glomalin-related soil proteins; long-term fertilization; soil physicochemical properties; three-dimensional fluorescence; Food Science; Agronomy and Crop Science; Plant Science
Abstract :
[en] Glomalin-related soil proteins (GRSP) play a crucial role in strengthening soil structure and increasing carbon (C) storage. However, the chemical stability of GRSP and related arbuscular mycorrhizal fungi (AMF) community response to fertilization remains unclear. This study investigated C and nitrogen (N) contents, three-dimensional fluorescence characteristics in GRSP, and AMF properties based on a field experiment that was subjected to 29 years of various fertilizations. The experiment included treatments with no fertilizer (CK), chemical fertilizer (NPK), manure (M), and manure combined with NPK (NPKM) treatments. Results showed that GRSP contained 37–49% C and 6–9% N, respectively. Compared with CK and NPK, the C and N proportions in GRSP significantly increased under M and NPKM. Using the parallel factor model, four fluorescent components of GRSP were identified: one fulvic acid-like component (C2), one tyrosine-like component (C4), and two humic acid-like components (C1, C3). Under M and NPKM, the fluorescent intensity of C2 and C4 decreased, while the humification index (HIX) increased relative to CK and NPK, indicating that organic fertilization could enhance the stability of GRSP. The C and N proportion in GRSP positively associated with soil organic C (SOC), total N (TN), available phosphorus (AP), AMF biomass, and diversity, while C2 and C4 showed negative associations. Structural equation modeling further revealed that manure-induced changes in pH, SOC, TN, and AP increased AMF biomass and diversity, thereby altering GRSP composition and stability. This study provides valuable insights into the compositional traits of GRSP, contributing to sustainable soil management and C sequestration in agroecosystems.
Disciplines :
Biochemistry, biophysics & molecular biology
Agriculture & agronomy
Environmental sciences & ecology
Author, co-author :
Yang, Hongbo ;  Université de Liège - ULiège > TERRA Research Centre ; Key Laboratory of Arable Land Quality Monitoring and Evaluation, Ministry of Agriculture and Rural Affairs, State Key Laboratory of Efficient Utilization of Arid and Semi-Arid Arable Land in Northern China, Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences (CAAS), Beijing, China
Cai, Zejiang;  Key Laboratory of Arable Land Quality Monitoring and Evaluation, Ministry of Agriculture and Rural Affairs, State Key Laboratory of Efficient Utilization of Arid and Semi-Arid Arable Land in Northern China, Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences (CAAS), Beijing, China
De Clerck, Caroline  ;  Université de Liège - ULiège > TERRA Research Centre > Plant Sciences
Meersmans, Jeroen  ;  Université de Liège - ULiège > Département GxABT > Echanges Eau - Sol - Plantes
Colinet, Gilles  ;  Université de Liège - ULiège > TERRA Research Centre > Echanges Eau - Sol - Plantes
Zhang, Wenju;  Key Laboratory of Arable Land Quality Monitoring and Evaluation, Ministry of Agriculture and Rural Affairs, State Key Laboratory of Efficient Utilization of Arid and Semi-Arid Arable Land in Northern China, Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences (CAAS), Beijing, China
Language :
English
Title :
Long-Term Manuring Enhanced Compositional Stability of Glomalin-Related Soil Proteins through Arbuscular Mycorrhizal Fungi Regulation
Publication date :
September 2024
Journal title :
Agriculture
eISSN :
2077-0472
Publisher :
Multidisciplinary Digital Publishing Institute (MDPI)
Volume :
14
Issue :
9
Pages :
1510
Peer reviewed :
Peer Reviewed verified by ORBi
Funding text :
This research was funded by the National Key R&D Program of China (No. 2021YFD1901201).
Available on ORBi :
since 08 November 2024

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