Effect of itter decomposition on soil microbes on different slopes

Jian, 龙健 Long; Chang, 赵畅 Zhao; Mingjiang, 张明江 Zhang; Jinnan, 吴劲楠 Wu; Qiusheng, 吴求生 Wu; Bocong, 黄博聪 Huang; Jumei, 张菊梅 Zhang

doi:10.5846/stxb201805261161

Cited by 1 publication

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“…In contrast, at a heavy level of decomposition, the substrate available for the fungi gradually decreases and competition for nutrient resources occurs among colonies, leading to a decrease in the number and diversity of fungal OTUs [13]. This is consistent with the results of wood decay [63,64] and litter decomposition [65], in which the highest fungal OTU numbers and indices of diversity and richness were found in samples taken near the moderate decomposition.…”

Section: Effect Of Bamboo Stump Decomposition On Soil Fungal Communit...supporting

confidence: 77%

Structural and Functional Characteristics of Soil Fungal Communities near Decomposing Moso Bamboo Stumps

Liang,

Yu,

Jin

et al. 2023

Forests

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Background and Objectives: Fungi degrade lignin and other fibers, thus playing an essential role in the decomposition of Phyllostachys edulis (Carrière) J.Houz. (Moso bamboo) stumps. Herein, we characterized key soil fungal communities near different levels of decomposing Moso bamboo stumps (mildly, moderately, and heavily decayed). Materials and Methods: High-throughput sequencing technology was used to analyze the soil fungal communities inside and outside of mild, moderate, and heavy decomposing Moso bamboo stumps. Results: We found nine phyla, 30 classes, 77 orders, 149 families, and 247 genera of soil fungi near the bamboo stumps. Soil fungi OTUs and diversity and richness indices were lower outside than inside the stumps, and decreased with increasing degrees of decay. Inside the bamboo stumps, Soil fungi OTUs and diversity and richness indices were the highest and lowest in moderate and heavy decay bamboo stumps, respectively. Ascomycota dominated inside (from 81% to 46%) and outside (from 69% to 49%) the stumps, and their relative abundance gradually decreased with decomposition, whereas that of Basidiomycota increased outside the stumps (from 17% to 49%). Two-way ANOVA showed that the interaction between the two factors of occurring inside and outside the bamboo stumps and the degree of decay, significantly affected Chytridiomycota and Penicillium (p < 0.001) and significantly affected Mucoromycota (p < 0.05). The abundance of different genera was significantly correlated with saprotrophic functional groups. Conclusion: Changes in the structure and functional groups of soil fungal communities may play an important role during different levels of decomposition of Moso bamboo stumps. This study provides a scientific basis for screening functional fungal strains that promote the decomposition of Moso bamboo stumps.

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Section: Effect Of Bamboo Stump Decomposition On Soil Fungal Communit...supporting

confidence: 77%