Changes in assembly processes of soil microbial communities during secondary succession in two subtropical forests

Liu, Lan; Zhu, Kai; Krause, Sascha; Li, Shaopeng; Wang, Xin; Zhang, Zhaochen; Mengwei, Shen; Yang, Qingsong; Lian, Juyu; Wang, Xihua; Ye, Wanhui; Zhang, Jian

doi:10.1016/j.soilbio.2021.108144

Cited by 100 publications

(75 citation statements)

References 44 publications

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“…Soil microbial community structure is highly sensitive to soil environmental changes and stresses [ 53 , 54 ] and is extremely affected by heavy metals [ 55 – 57 ]. Our results in Cd-contaminated ginseng-growing soil (Figs.…”

Section: Discussionmentioning

confidence: 99%

Effects of cadmium contamination on bacterial and fungal communities in Panax ginseng-growing soil

Sun

Jin

et al. 2022

BMC Microbiol

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Background Cadmium (Cd) contamination in soil poses a serious safety risk for the development of medicine and food with ginseng as the raw material. Microorganisms are key players in the functioning and service of soil ecosystems, but the effects of Cd-contaminated ginseng growth on these microorganisms is still poorly understood. To study this hypothesis, we evaluated the effects of microorganisms and Cd (0, 0.25, 0.5, 1.0, 2.0, 5.0, and 10.0 mg kg-1 of Cd) exposure on the soil microbial community using Illumina HiSeq high-throughput sequencing. Results Our results indicated that Cd-contaminated soil affected the soil microbial diversity and composition, and bacterial diversity was affected more than fungal diversity in Cd-contaminated soil, especially according to Shannon indices. The abundance of the soil microbial community decreased and the composition changed according to the relative abundances at the phylum level, including those of Saccharibacteria and Gemmatimonadetes in bacteria and Mortierellomycota in fungi. The LEfSe algorithm was used to identify active biomarkers, and 45 differentially abundant bacterial taxonomic clades and 16 differentially abundant fungal taxonomic clades were identified with LDA scores higher than 4.0. Finally, a heatmap of Spearman's rank correlation coefficients and canonical discriminant analysis (CDA) indicated that some key biomarkers, Arenimonas, Xanthomonadales, Nitrosomonadaceae, Methylophilales, Caulobacterales, Aeromicrobium, Chitinophagaceae, Acidimicrobiales, Nocardioidaceae, Propionibacteriales, Frankiales, and Gemmatimonadaceae, were positively correlated with the total and available Cd (p<0.05) but negatively correlated with AK, AP, and pH (p<0.05) in the bacterial community. Similarly, in the fungal community, Tubaria, Mortierellaceae, and Rhizophagus were positively correlated with the total and available Cd but negatively correlated with AK, AP, TK, and pH. Conclusion Cd contamination significantly affected microbial diversity and composition in ginseng-growing soil. Our findings provide new insight into the effects of Cd contamination on the microbial communities in ginseng-growing soil.

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Section: Discussionmentioning

confidence: 99%

Effects of cadmium contamination on bacterial and fungal communities in Panax ginseng-growing soil

Sun

Jin

et al. 2022

BMC Microbiol

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“…Therefore, how the soil microbial community structure varies during long-term succession needs to be determined. During ecological succession, soil microbial communities can vary dramatically [12][13][14]. For example, microbial communities change substantially in the transition from grassland to pioneer forest, but less so in the transition from pioneer stage to later stage [15].…”

Section: Introductionmentioning

confidence: 99%

Effects of Soil Properties and Plant Diversity on Soil Microbial Community Composition and Diversity during Secondary Succession

Shang

Huang

et al. 2021

Forests

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Soil microbial communities play an important role in maintaining the ecosystem during forest secondary succession. However, the underlying mechanisms that drive change in soil microbial community structures during secondary succession remain poorly defined in species-rich subtropical coniferous forests. In this study, Illumina high-throughput sequencing was used to analyze the variations in soil microbial community structures during forest secondary succession in subtropical coniferous forests in China. The role of soil properties and plant diversity in affecting soil bacterial and fungal communities was determined using random forest and structural equation models. Highly variable soil microbial diversity was observed in different stages of secondary succession. Bacterial community diversity rose from early to middle and late successional stages, whereas fungal community diversity increased from early to middle successional stages and then declined in the late stage. The relative abundance of Acidobacteria, Gemmatimonadetes, Eremiobacterota(WPS-2), Rokubacteria, and Mortierellomycota increased during succession, whereas the relative abundance of Ascomycota and Mucoromycota decreased. The community composition and diversity of the soil microbial community were remarkably influenced by plant diversity and soil properties. Notably, tree species richness (TSR) displayed a significant and direct correlation to the composition and diversity of both bacterial and fungal communities. The carbon-to-nitrogen (C:N) ratio had a direct impact on the bacterial community composition and diversity, and pH had a marked impact on the fungal community composition and diversity. Furthermore, succession stage and plant diversity indirectly impacted the composition and diversity of soil bacterial and fungal communities via soil properties. Overall, it can be concluded that soil intrinsic properties and plant diversity might jointly drive the changes in soil microbial community composition and diversity during secondary succession of subtropical coniferous forests.

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“…Interestingly, from a compositional perspective there were differences in soil fungi genera between the holm oak forest and plain area even if the sites were in close proximity. These differences might be produced by the different successional stage of the habitats [55], of which holm oak forest had more stable plant and soil fungal communities, while early successional mined areas, such as our plain sites, have a more shifting plant system and rhizosphere mycobiome [56]. Thus, the soil fungal composition of these plain sites might not be suitable for tree establishment and growth of advanced successional tree species considering the interplay between plants and fungi [57].…”

Section: Soil Fungi Differences Between Q Ilex and Revegetated Quarry...mentioning

confidence: 94%

Fungal Perspective of Pine and Oak Colonization in Mediterranean Degraded Ecosystems

Adamo

Dashevskaya

Alday

2022

Forests

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Forest restoration has become one of the most important challenges for restoration ecology in the recent years. In this regard, soil fungi are fundamental drivers of forest ecosystem processes, with significant implications for plant growth and survival. However, the post-disturbance recovery of belowground communities has been rarely assessed, especially in highly degraded systems such as mines. Our aim was to compare forests and mined systems for biomass and structure of fungal communities in soil during early stages of tree establishment after disturbance. We performed ergosterol analysis and PacBio and Illumina sequencing of internal transcribed spacer 2 amplicons across soil layers in P. sylvestris, Q. robur and Q. ilex (holm oak) forests and naturally revegetated mined sites. In pine forests, total fungal biomass was significantly higher in litter and humus compared to mineral layers, with dominance of the mycorrhizal genera Tomentella, Inocybe and Tricholoma. Conversely, in oak forests the most abundant mycorrhizal genera were Tomentella, Cortinarius and Sebacina, but the biomass of saprotrophic fungi was greater in the litter layer compared to mycorrhizal fungi, with the genus Preussia being the most abundant. In the revegetated mined sites, ectomycorrhizal fungi dominated in the humus and mineral layers, with the mycorrhizal genus Oidiodendron being dominant. In contrast, in holm oak forests saprotrophic fungi dominated both soil humus and mineral layers, with the genera of Alternaria, Bovista and Mycena dominating the soil humus forest layer, while the genus Cadophora dominated the mineral layer. The habitat-specific differences in soil fungal community composition and putative functions suggest that an understanding of soil–plant–microbial interactions for different tree species and use of specific soil/litter inoculum upon planting/seeding might help to increase the effectiveness of tree restoration strategies in Mediterranean degraded sites.

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Changes in assembly processes of soil microbial communities during secondary succession in two subtropical forests

Cited by 100 publications

References 44 publications

Effects of cadmium contamination on bacterial and fungal communities in Panax ginseng-growing soil

Effects of cadmium contamination on bacterial and fungal communities in Panax ginseng-growing soil

Effects of Soil Properties and Plant Diversity on Soil Microbial Community Composition and Diversity during Secondary Succession

Fungal Perspective of Pine and Oak Colonization in Mediterranean Degraded Ecosystems

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