Effects of Nitrogen Addition on Soil Aggregate Stability and Mycorrhizal Morphological Characteristics: Differential Responses of Arbuscular Mycorrhizal and Ectomycorrhizal Fungi

Forests, Journal Year: 2025, Volume and Issue: 16(2), P. 282 - 282

Published: Feb. 6, 2025

Soil aggregate stability plays a pivotal role in ecosystem functioning and carbon sequestration. Nitrogen deposition influences drives differential responses AM ECM fungi, yet the underlying mechanisms remain unclear. This study aimed to determine how N addition soil aggregation, mycorrhizal morphological characteristics, organic (SOC) across two types. A temperate forest experiment was conducted northeastern China using 12 plots subjected four treatments (control, low, medium, high). properties, traits, distributions were quantified. Relationships examined via correlation analyses, random models, structural equation modeling. enrichment substantially increased SOC water content, enhancing proportion of large aggregates (4–8 mm) elevating mean weight diameter (MWD) geometric (GMD), critical indicators stability. fungi exhibited stronger response than ECM, reflected greater hyphal development accumulation. content correlated positively with stability, whereas pH showed negative association. inputs enhance by promoting retention, demonstrating heightened sensitivity addition. These findings emphasize integral dynamics shaping stabilization under increasing deposition.

Language: Английский

Mycorrhizal and non-mycorrhizal perennial ryegrass roots exhibit differential regulation of lipid and Ca2+ signaling pathways in response to low and high temperature stresses

Plant Physiology and Biochemistry, Journal Year: 2024, Volume and Issue: 216, P. 109099 - 109099

Published: Sept. 7, 2024

Language: Английский