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

Shang, Rui-Guang; Li, Shuaifeng; Huang, Xiaobo; Liu, Wande; Lang, Xuedong; Su, Jianrong

doi:10.3390/f12060805

Cited by 25 publications

(22 citation statements)

References 61 publications

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“…Soil microorganisms are influenced by specific species as the presence of plants controls the levels of microbial diversity and drives community assembly ( Shang et al, 2021 ). Our results show that weeds significantly decreased bacterial and fungal α-diversity indices when compared with Ms., which were possibly elicited by inherent soil properties and the influence of plant growth on microbial communities ( Cha et al, 2021 ).…”

Section: Discussionmentioning

confidence: 99%

Weeds in the Alfalfa Field Decrease Rhizosphere Microbial Diversity and Association Networks in the North China Plain

et al. 2022

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The competition between weeds and crops for soil nutrients is affected by soil microorganisms, which drive diverse ecological processes and are critical in maintaining the stability of agroecosystems. However, the effects of plant species identity, particularly between forage and weed, on soil microbial diversity, composition, and association are not well understood. Here, we investigate the soil physicochemical properties and bacterial/fungal communities in an agroecosystem with native alfalfa [Medicago stativa (Ms)] and five common weed species (Digitaria sanguinalis, Echinochloa crusgalli, Acalypha australis, Portulaca oleracea, and Chenopodium album) in the North China Plain. The five weeds had a lower plant carbon content than Ms. while the opposite was true for plant nitrogen and phosphorus concentrations. The Shannon diversity of bacterial and fungal communities of the five weeds were significantly lower than in Ms. Soil pH and PO43−-P were identified as the most important factors in shaping the relative abundances of bacteria (Sphingomonadaceae) and fungi (Pleosporaceae), respectively. Importantly, the weeds greatly inhibited the growth of pathogenic fungi (Nectriaceae and Pleosporaceae). Bacterial co-occurrence networks depended on specific species, indicating that Ms. harbored co-occurrence networks that were more complex than those in the bacterial communities of other weed groups. Our study examines how soil nutrients and the soil microbial community structure of five weed species changed in an Ms. field. This analysis of the microbial ecological network enhances our understanding of the influence of weeds on the soil microbiome in agroecosystems.

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Section: Discussionmentioning

confidence: 99%

Weeds in the Alfalfa Field Decrease Rhizosphere Microbial Diversity and Association Networks in the North China Plain

et al. 2022

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“…Our results show that AK and TK have a significant impact on bacterial community structure, especially in bulk soils, which is consistent with the results reported by Ma et al [ 24 ], who reported a statistical correlation between microbial structure and soil TK in Eucalyptus urophylla plantations. Leaching of K from the soil may explain this phenomenon [ 9 ]. Our experiment was conducted in a tropical forest region, and heavy rainfall may emphasize this phenomenon.…”

Section: Discussionmentioning

confidence: 99%

“…These changes may drive shifts in microbial communities [ 6 , 7 ]. In turn, microbes play a vital part in shaping the aboveground biodiversity and functions and services of terrestrial ecosystems by driving crucial biogeochemical processes and mediating the nutrient cycle [ 8 , 9 , 10 ]. For instance, nitrogen-fixing bacteria, mycorrhizal fungi, and rhizosphere growth-promoting bacteria can directly enhance the ability of plants to obtain nutrients [ 11 ].…”

Section: Introductionmentioning

confidence: 99%

“…One of the central questions in soil microbial ecology is how soil microbial communities respond to ecological succession [ 10 ] and what are the driving forces. Mounting evidence in the literature has shown that the bacterial community structure is shaped by multiple abiotic and biotic factors, such as pH, nutrient availability, soil moisture, plant diversity, and underground vegetation characteristics [ 9 ]. Prior studies reported that soil properties, especially pH, exerted a strong effect on the composition and structure of bacterial communities [ 17 ].…”

Section: Introductionmentioning

confidence: 99%

“…It is generally believed that microbial community assembly is scale-dependent [ 22 ]. On a local scale, abiotic factors (litter, soil nutrients, soil pH, and temperature) and biotic factors (underground vegetation characteristics) jointly explain the variation in soil bacterial community composition [ 5 , 6 , 9 ]. A study conducted on the Loess Plateau found that the contributions of soil and plants can jointly explain 76.95% of soil bacterial diversity and 90.64% of bacterial composition during the second succession [ 23 ].…”

Section: Introductionmentioning

confidence: 99%

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Soil Bacterial Community Shifts Are Driven by Soil Nutrient Availability along a Teak Plantation Chronosequence in Tropical Forests in China

Kunnan

Huang

et al. 2021

Biology

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Soil bacterial communities play crucial roles in ecosystem functions and biogeochemical cycles of fundamental elements and are sensitive to environmental changes. However, the response of soil bacterial communities to chronosequence in tropical ecosystems is still poorly understood. This study characterized the structures and co-occurrence patterns of soil bacterial communities in rhizosphere and bulk soils along a chronosequence of teak plantations and adjacent native grassland as control. Stand ages significantly shifted the structure of soil bacterial communities but had no significant impact on bacterial community diversity. Bacterial community diversity in bulk soils was significantly higher than that in rhizosphere soils. The number of nodes and edges in the bacterial co-occurrence network first increased and then decreased with the chronosequence. The number of strongly positive correlations per network was much higher than negative correlations. Available potassium, total potassium, and available phosphorus were significant factors influencing the structure of the bacterial community in bulk soils. In contrast, urease, total potassium, pH, and total phosphorus were significant factors affecting the structure of the bacterial community in the rhizosphere soils. These results indicate that available nutrients in the soil are the main drivers regulating soil bacterial community variation along a teak plantation chronosequence.

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Soil bacterial community and ecosystem multifunctionality regulated by keystone plant species during secondary succession

Shang,

Li,

Huang

et al. 2023

Land Degrad Dev

Self Cite

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Plants and soil bacteria exert a vital function in mediating soil ecosystem multifunctionality (EMF). Nevertheless, plant and soil bacteria interaction during forest secondary succession is poorly understood, and their roles in soil EMF remain largely unexplored. The dynamics of soil physicochemical properties and bacterial diversity was studied in southwest China during forest succession from coniferous to monsoon broadleaf evergreen. Interdomain ecological networks (IDEN) were adopted for investigating plant–bacteria associations. With the purpose of assessing how soil factors, bacterial community and plant diversity influenced soil EMF, the structural equation model (SEM) was used. It was discovered that both soil bacterial diversity and soil EMF gradually increased with the succession. IDEN analysis revealed that plant–bacteria ecological networks differed significantly across successional stages. Keystone plant species richness (KSR) increased with succession, which benefited soil bacteria diversity (path coefficient = 0.802, p < 0.001) while having a direct negative impact on pH (path coefficient = −0.602, p < 0.05) and C:N (path coefficient = −0.759, p < 0.001). Soil pH and C:N ratio declines were observed during forest secondary succession and were found to be inversely related to soil EMF. Furthermore, soil pH was found to be inversely related to bacterial diversity. The SEM analysis explained 88.2% of the variation in soil multifunctionality. The findings suggested that keystone plant species played a key function in regulating the variations of soil bacterial community and EMF (total effect = 0.813). Our study clarified the critical functions of keystone species in driving soil bacterial diversity and multifunctionality during forest succession and provided a new perspective on the relationship between above‐ and below‐ground.

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

Cited by 25 publications

References 61 publications

Weeds in the Alfalfa Field Decrease Rhizosphere Microbial Diversity and Association Networks in the North China Plain

Weeds in the Alfalfa Field Decrease Rhizosphere Microbial Diversity and Association Networks in the North China Plain

Soil Bacterial Community Shifts Are Driven by Soil Nutrient Availability along a Teak Plantation Chronosequence in Tropical Forests in China

Soil bacterial community and ecosystem multifunctionality regulated by keystone plant species during secondary succession

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