Linking fungal community structure with soil nitrogen dynamics following forest conversion in a subalpine forest in China

Wang, Lixia; Fu, Shuangjia; Gao, Haoying; Li, Huichao; Liu, Yang; Zhang, Li; Li, Han; You, Chengming; Liu, Sining; Tan, Bo; Xiong, Qinli; Xu, Zhenfeng; Godbold, Douglas L.

doi:10.1016/j.geoderma.2023.116448

Cited by 7 publications

(2 citation statements)

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“…Soil texture, pH, moisture availability, and nutrient supply emerge as additional parameters significantly impacting both enzyme and microbial activity ( Schneider et al, 2008 ; Cusack et al, 2011 ; Peña-Claros et al, 2012 ; Koranda et al, 2013 ; Chacon et al, 2023 ; Hartmann and Six, 2023 ; Wang L. et al, 2023 ). Soil texture influences water-holding capacity, with acidic soils potentially limiting nutrient availability and impacting microbial activity, while alkaline soils may affect enzymatic reactions.…”

Section: Discussionmentioning

confidence: 99%

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Decoding seasonal changes: soil parameters and microbial communities in tropical dry deciduous forests

Solanki,

Gurjar,

Sharma

et al. 2024

Front. Microbiol.

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In dry deciduous tropical forests, both seasons (winter and summer) offer habitats that are essential ecologically. How these seasonal changes affect soil properties and microbial communities is not yet fully understood. This study aimed to investigate the influence of seasonal fluctuations on soil characteristics and microbial populations. The soil moisture content dramatically increases in the summer. However, the soil pH only gradually shifts from acidic to slightly neutral. During the summer, electrical conductivity (EC) values range from 0.62 to 1.03 ds m-1, in contrast to their decline in the winter. The levels of soil macronutrients and micronutrients increase during the summer, as does the quantity of soil organic carbon (SOC). A two-way ANOVA analysis reveals limited impacts of seasonal fluctuations and specific geographic locations on the amounts of accessible nitrogen (N) and phosphorus (P). Moreover, dehydrogenase, nitrate reductase, and urease activities rise in the summer, while chitinase, protease, and acid phosphatase activities are more pronounced in the winter. The soil microbes were identified in both seasons through 16S rRNA and ITS (Internal Transcribed Spacer) gene sequencing. Results revealed Proteobacteria and Ascomycota as predominant bacterial and fungal phyla. However, Bacillus, Pseudomonas, and Burkholderia are dominant bacterial genera, and Aspergillus, Alternaria, and Trichoderma are dominant fungal genera in the forest soil samples. Dominant bacterial and fungal genera may play a role in essential ecosystem services such as soil health management and nutrient cycling. In both seasons, clear relationships exist between soil properties, including pH, moisture, iron (Fe), zinc (Zn), and microbial diversity. Enzymatic activities and microbial shift relate positively with soil parameters. This study highlights robust soil-microbial interactions that persist mainly in the top layers of tropical dry deciduous forests in the summer and winter seasons. It provides insights into the responses of soil-microbial communities to seasonal changes, advancing our understanding of ecosystem dynamics and biodiversity preservation.

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Section: Discussionmentioning

confidence: 99%

“…regulate the activity of other microorganisms ( Grosso et al, 2018 ). Previous studies revealed saprophytic fungi, major decomposers in the soil, secrete soil oxidation enzymes during the decomposition of organic materials ( Wang L. et al, 2023 ). For example, mycorrhizal fungi such as Glomus spp.…”

Section: Introductionmentioning

confidence: 99%