Responses of the rhizosphere bacterial community in acidic crop soil to pH: Changes in diversity, composition, interaction, and function

Wan, Wenjie; Tan, Jiadan; Wang, Yi; Yin, Qianqian; He, Huangmei; Wu, Huiqin; Zuo, Wenlong; He, Donglan

doi:10.1016/j.scitotenv.2019.134418

Cited by 134 publications

(61 citation statements)

References 60 publications

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“…This study examined the soil physical and chemical properties, nutrient content, enzyme activity, and microbial community to study the relationship between ginseng rusty root and soil. Soil pH seriously affects crop growth and microbial community structure in the soil 11,12 . Compared with healthy ginseng rhizosphere soil, the pH of GRR rhizosphere soil decreased significantly (Fig.…”

Section: Discussionmentioning

confidence: 99%

Comparative analysis of rhizosphere soil physiochemical characteristics and microbial communities between rusty and healthy ginseng root

Bian

Shuhua

Zhao

et al. 2020

Sci Rep

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Ginseng rusty root (GRR) symptom is one of the primary diseases of ginseng. There has been a problem of ginseng rusty root, leading to a severe decline in the quality of ginseng. To clarify the relationship between root symptoms of ginseng rust and soil, the physical and chemical properties, enzyme activity, community structure and microbial diversity of GRR and healthy ginseng (HG) rhizosphere soil were analyzed and compared. The pH and redox potential (Eh) of GRR soil decreased, and the contents of total phosphorus (TP), available phosphorus (AP), and available potassium (AK) decreased. The activity of catalase and phosphatase and invertase was lower than that of HG groups. Besides, the microbial community of GRR rhizosphere soil changes much, and its abundance and diversity are significantly reduced. The community structure of GRR rhizosphere soil also shows apparent differences, and the samples of the HG group gathered together, and the samples of the GRR group were dispersed. In general, GRR was closely associated with decreases in soil pH and Eh; decreases in TP, AP, and AK; decreases in the activity of several enzymes. Additionally, it is strongly associated with an increase in pathogenic microorganisms such as Ilyonectria and a reduction of beneficial microorganisms such as Tremellomycetes Acidobacteria subgroup 6 and Gemmatimonadetes.

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Section: Discussionmentioning

confidence: 99%

Comparative analysis of rhizosphere soil physiochemical characteristics and microbial communities between rusty and healthy ginseng root

Bian

Shuhua

Zhao

et al. 2020

Sci Rep

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“…The V3-V4 region of the bacterial 16S rRNA gene was ampli ed by employing the primers 338F (5′-ACT CCT ACG GGA GGC AGC A-3′) and 806R (5′-GGA CTA CHV GGG TWT CTA AT-3′) [81]. The fungal internal transcribed spacer (ITS) region was ampli ed by applying the primers ITS1 (5′-GGA AGT AAA AGT CGT AAC AAG G-3′) and ITS2 (5′-GCT GCG TTC TTC ATC GAT GC-3′) [82].…”

Section: Molecular Analysesmentioning

confidence: 99%

Stronger Environmental Adaption of Abundant than Rare Microbes in Wetland Soils from the Qinghai-Tibet Plateau

Wan

Gadd

Yang

et al. 2020

Preprint

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Background: Disentangling the biogeographic patterns of rare and abundant microbial sub-communities is essential in order to understand the generation and maintenance of microbial diversity with respect to the functions they provide. However, little is known about ecological assembly processes and environmental adaptation of rare and abundant microbial sub-communities across large spatial-scale wetlands. Using Illumina sequencing, we investigated the taxonomic and phylogenetic β-diversity of rare and abundant bacterial and fungal sub-communities in Qinghai-Tibet Plateau wetland soils. Additionally, we determined environmental breadths and phylogenetic signals of ecological preferences of rare and abundant microbial sub-communities, and investigated community assembly processes of microbial taxa. Results: We found that both taxonomic and phylogenetic similarities of rare and abundant microbial sub-communities attenuated with geographical distance. Based on threshold indicator taxa analysis and Blomberg’s K statistic, abundant microbial taxa exhibited broader environmental thresholds and stronger phylogenetic signals for ecological traits than rare microbial taxa. The strong correlations between community compositional dissimilarity and phylogenetic distance of rare microbial sub-communities also revealed that rare taxa may be more sensitive to environmental changes. In addition, the rare microbial sub-communities exhibited closer phylogenetic clustering compared with abundant microbial sub-communities. The null model analysis revealed that dispersal limitation belonging to stochastic process dominated ecological assembly of abundant bacterial sub-community, and rare and abundant fungal sub-communities; variable selection belonging to deterministic process governed community assembly of rare bacterial taxa. Neutral model analysis and variation partitioning analysis further confirmed that abundant microbial sub-communities were less environmentally constrained. Soil ammonia nitrogen was the crucial factor in mediating the balance between stochasticity and determinism of both rare and abundant microbial sub-communities, as reflected by distinct differences in stochastic process with higher ammonia nitrogen content.Conclusions: Abundant microbial sub-communities may have better environmental adaptation potential and are less dispersed by environmental changes compared with rare microbial sub-communities. Our findings extend knowledge of the adaptation of rare and abundant microbial taxa to ongoing environmental change and could facilitate prediction of biodiversity loss caused by global climate change and increasing human activity in wetlands of the Qinghai-Tibet Plateau.

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“…La acidif icación del suelo inhibe el crecimiento microbiano y conduce a la disminución de la abundancia y diversidad de los microbios del suelo (Wan et al, 2019), lo que reduce aún más la estabilidad espacial de los ecosistemas de los suelos agrícolas, sobre todo en aquellos con bajos contenidos de materia orgánica. Esto trae consigo cambios en las comunidades de depredadores de insectos y la disminución de los controles biológicos, lo que reduce la sostenibilidad de la producción agrícola (Lal, 2015).…”

Section: Introductionunclassified

“…Esto trae consigo cambios en las comunidades de depredadores de insectos y la disminución de los controles biológicos, lo que reduce la sostenibilidad de la producción agrícola (Lal, 2015). Otros estudios han indicado que la disminución del rendimiento de los cultivos en suelos ácidos está relacionada con la disminución de la función bacteriana del suelo (Lupwayi et al, 2014;Wan et al, 2019).…”

Section: Introductionunclassified

Efecto de la materia orgánica y la capacidad de intercambio catiónico en la acidez de suelos cultivados con maíz en dos regiones de Chiapas, México

Cruz-Macias¹,

Larramendi²,

Salas‐Marina³

et al. 2020

Terra

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La tercera parte de los suelos del mundo son ácidos, en estas condiciones muchos cultivos se afectan, sobre todo cuando las concentraciones de aluminio alcanzan niveles tóxicos. Con el objetivo de establecer las relaciones entre indicadores de acidez y la capacidad de intercambio catiónico, el pH y el contenido de materia orgánica, se seleccionaron 13 sitios en las regiones Frailesca y Valles Zoque. Se tomaron cinco sub-muestras a 0.30 m de profundidad, para luego conformar una muestra homogénea por sitio experimental. Se determinaron el pH, cationes intercambiables, capacidad de intercambio catiónico, contenido de materia orgánica, saturación de aluminio (Al3+) y de hidrógeno (H+). El porcentaje de saturación del Al3+ se correlacionó exponencialmente con incrementos en la CIC, el pH y el % de saturación del calcio (Ca2+); sin embargo, respecto a la materia orgánica, la saturación de Al3+ se ajustó significativamente a un modelo polinomial de segundo grado, indicando un máximo de saturación a valores de 4.14% de materia orgánica. El porcentaje de saturación de H+ se ajustó negativamente a una función exponencial, disminuyendo a valores de materia orgánica superiores a 2%. Se concluye que en los suelos de la región Frailesca se está produciendo un proceso de acidificación que pudiera conducir a incrementos tóxicos del aluminio para el cultivo de maíz, sobre todo a valores de pH inferiores a cinco. Tales incrementos en la acidificación de los suelos pudieran estar asociados al excesivo uso de fertilizantes amoniacales producto de una agricultura mucho más intensiva que en la región Valles Zoques.

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Responses of the rhizosphere bacterial community in acidic crop soil to pH: Changes in diversity, composition, interaction, and function

Cited by 134 publications

References 60 publications

Comparative analysis of rhizosphere soil physiochemical characteristics and microbial communities between rusty and healthy ginseng root

Comparative analysis of rhizosphere soil physiochemical characteristics and microbial communities between rusty and healthy ginseng root

Stronger Environmental Adaption of Abundant than Rare Microbes in Wetland Soils from the Qinghai-Tibet Plateau

Efecto de la materia orgánica y la capacidad de intercambio catiónico en la acidez de suelos cultivados con maíz en dos regiones de Chiapas, México

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