Soil Aggregates and Fertilizer Treatments Drive Bacterial Interactions via Interspecies Niche Overlap

Xiong, Xiang; Liao, Hao; Xing, Yanfang; Han, Xukun; Wang, Wanle; Wan, Wenjie; Huang, Qiaoyun; Chen, Wenli

doi:10.1128/spectrum.02524-21

Cited by 8 publications

(3 citation statements)

References 45 publications

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“…Niche overlap is an indicator of ecological similarity between species and is related to interspecific competition. Generally, a high degree of niche overlap implies high similarity in resource utilization between species and more severe competition (Russel et al., 2017 ; Xiong et al., 2022 ). In this study, a high degree of niche overlap indicated a high level of interspecific competition between these two species.…”

Section: Discussionmentioning

confidence: 99%

Prediction of potential distributions of Morina kokonorica and Morina chinensis in China

Yuan,

Zhang,

Yao

et al. 2024

Ecology and Evolution

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Changes in the habitats of species can provide insights into the impact of climate change on their habitats. Species in the genus Morina (Morinoideae) are perennial herbaceous plants that are mainly distributed in the South Asian Mountains and Eastern Mediterranean. In China, there are four species and two varieties of this genus distributed across the Yunnan, Sichuan, Qinghai, and Gansu provinces. This study used the optimal MaxEnt model to simulate past, current, and future potentially suitable habitats of Morina kokonorica and Morina chinensis. Seventy data of M. kokonorica occurrences and 3 of M. chinensis were used in the model to predict potentially suitable habitats. The model prediction results indicated that both M. kokonorica and M. chinensis exhibited trends of northward migration to higher latitudes and westward migration along the Himalayas to higher elevations, suggesting that the northern valleys of Hengduan Mountains and northern and eastern parts of the Himalayas were potential refugia for M. kokonorica, and the potential refugia for M. chinensis was located in the eastern part of Qinghai‐Tibet Plateau. The results of this niche analysis showed that the two species had higher levels of interspecific competition and that the environmental adaptability of M. chinensis was stronger. This research could help further understand the response pattern of Morina to environmental change, to understand the adaptability of species to the environment, and promote the protection of species.

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Section: Discussionmentioning

confidence: 99%

Prediction of potential distributions of Morina kokonorica and Morina chinensis in China

Yuan,

Zhang,

Yao

et al. 2024

Ecology and Evolution

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“…Soil aggregates are the basic units of soil and have a crucial influence on the microbial abundance and diversity and even on certain functional taxa ( Xiong et al, 2022 ). Different tillage practices can affect the physical and chemical properties of the soil, which can, in turn, affect the soil aggregate structure ( Zheng et al, 2018 ).…”

Section: Discussionmentioning

confidence: 99%

Effects of aftercrop tomato and maize on the soil microenvironment and microbial diversity in a long-term cotton continuous cropping field

Han,

Ji,

Huang

et al. 2024

Front. Microbiol.

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Long-term continuous cropping affects the soil microecological community and leads to nutrient imbalances, which reduces crop yields, and crop rotation can increase soil productivity. To study the effects of the cultivation of tomato (Solanum lycopersicum) and corn (Zea mays) on the microbial community, physical and chemical factors and the structure of aggregates in cotton (Gossypium hirsutum) long-term continuous cropping soils were examined. Four cropping patterns were established, including one continuous cropping pattern and three crop rotation patterns, and the diversity of the soil microecological community was measured using high-throughput sequencing. The physical and chemical properties of different models of soil were measured, and the soil aggregate structure was determined by dry and wet sieving. Planting of aftercrop tomato and corn altered the bacterial community of the cotton continuous soil to a lesser extent and the fungal community to a greater extent. In addition, continuous cropping reduced the diversity and richness of the soil fungal community. Different aftercrop planting patterns showed that there were very high contents of soil organic carbon and organic matter in the cotton-maize rotation model, while the soil aggregate structure was the most stable in the corn-cotton rotation model. Planting tomato in continuous cropping cotton fields has a greater effect on the soil microbial community than planting maize. Therefore, according to the characteristics of different succeeding crop planting patterns, the damage of continuous cropping of cotton to the soil microenvironment can be alleviated directionally, which will enable the sustainable development of cotton production.

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“…Soil microbial community is fundamental to soil ecological processes and ecosystem function, regulating the response of soil ecosystem to environmental change and human disturbance (Crowther et al 2019). Research on the distribution patterns of bacteria and fungi across aggregate sizes can obtain further information about the combined effect of soil nutrients' microbial turnover along afforestation succession (Xiong et al 2022). Among different soil aggregate size classes, the spatial strati cation of microorganisms with diverse functions might be in uenced by the distinct biotic and abiotic factors, which would further modify soil biogeochemical cycling (Tian et al 2019).…”

Section: Introductionmentioning

confidence: 99%

Response of soil aggregate-associated fertility and microbial communities to afforestation in the degraded ecosystem of the Danjiangkou Reservoir, China

Chen

Wang

et al. 2023

Plant Soil

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Afforestation has been viewed as the most effective natural method to restore the erosive degraded ecosystem. However, the effect of soil inherent heterogeneity on soil quality, microbial community dynamics and assembly after afforestation in rocky deserti cation area remains indistinct. MethodsIn the present study, we set up 3 standard quadrats for each soil type, i.e., bareland, farmland and woodland, in the study area and separated the soils into four aggregate size fractions. Soil nutrition status, enzymatic activities, bacterial and fungal community composition in different aggregate fractions were determined. ResultsGenerally, afforestation promoted soil nutrients and enzyme activities, and strengthened their aggregational differentiation. Interestingly, the aggregational differentiation of bacterial alpha-diversity was more sensitive to afforestation than fungal alpha-diversity. Conversely, afforestation caused that more fungal taxa were susceptible to soil aggregates than bacterial taxa. In the bareland, deterministic process was the decisive factor for the bacterial community, while fungal community was determined by both stochastic and deterministic processes. Afforestation regulated the balance between stochastic and deterministic processes Dispersal limitation, belonging to stochastic process, determined bacterial community assembly; whereas, fungal community assembly was governed by variable selection belonging to deterministic process. ConclusionsAfforestation on the bareland promoted the aggregation differentiation of soil nutrients, microbial community composition and diversity, and changed the mechanism of microbial community assembly in the rocky deserti cation area of Danjiangkou Reservoir. This study provides critical insights into the responses of soil nutrition and microbial community to vegetation restoration at the soil aggregate level.

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Soil Aggregates and Fertilizer Treatments Drive Bacterial Interactions via Interspecies Niche Overlap

Cited by 8 publications

References 45 publications

Prediction of potential distributions of Morina kokonorica and Morina chinensis in China

Prediction of potential distributions of Morina kokonorica and Morina chinensis in China

Effects of aftercrop tomato and maize on the soil microenvironment and microbial diversity in a long-term cotton continuous cropping field

Response of soil aggregate-associated fertility and microbial communities to afforestation in the degraded ecosystem of the Danjiangkou Reservoir, China

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