Microbial 16S gene-based composition of a sorghum cropped rhizosphere soil under different fertilization managements

Lavecchia, Anna; Curci, Maddalena; Jangid, Kamlesh; Whitman, William B.; Ricciuti, Patrizia; Pascazio, Saverio; Crecchio, Carmine

doi:10.1007/s00374-015-1017-0

Cited by 39 publications

(17 citation statements)

References 54 publications

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“…Furthermore, some plant-associated bacteria suppress pathogens or induce systemic resistance to maintain plant health (Eyles, Bonello, Ganley, & Mohammed, 2010;Pieterse et al, 2014). Studies in Arabidopsis, sugarcane, sorghum and many other plants have demonstrated that the bacterial communities associated with the plant are strongly influenced by the plant organ type and soil type (Lavecchia et al, 2015;Li, Voigt, & Kent, 2016;Lundberg et al, 2012;De Souza et al, 2016). A much weaker effect on the bacterial communities is imposed by different plant growth stages and the genotype (Lavecchia et al, 2015;Lundberg et al, 2012) or agricultural practice such as ploughing, while different N fertilization | 1335 LIU and LUdEWIG often had only minor effects on the plant-associated bacterial communities (Babin et al, 2019).…”

Section: Introductionmentioning

confidence: 99%

Nitrogen‐dependent bacterial community shifts in root, rhizome and rhizosphere of nutrient‐efficient Miscanthus x giganteus from long‐term field trials

Liu

Ludewig

2019

GCB Bioenergy

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The perennial energy crop Miscanthus × giganteus is recognized for its extraordinary nitrogen‐use efficiency. While the remobilization of nitrogen (N) to the rhizome after the growth phase contributes to this efficiency, the plant‐associated microbiome might also contribute, as N‐fixing bacterial species had been isolated from this grass. Here, we studied established Miscanthus × giganteus plots in southern Germany that either received 80 kg N ha−1 a−1 or that were not N‐fertilized for 14 years. The bacterial communities of the bulk soil, rhizosphere, roots and rhizomes were analysed. Major differences were encountered between plant‐associated fractions. Nitrogen had little effect on soil communities. The roots and rhizomes showed less microbial diversity than soil fractions. In these compartments, Actinobacteria and N‐fixing symbiosis‐associated Proteobacteria depended on N. Intriguingly, N2‐fixing‐related bacterial families were enriched in the rhizomes in long‐term zero N plots, while denitrifier‐related families were depleted. These findings point to the rhizome as a potentially interesting plant organ for N fixation and demonstrate long‐term differences in the organ‐specific bacterial communities associated with different N supply, which are mainly shaped by the plant.

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Section: Introductionmentioning

confidence: 99%

Nitrogen‐dependent bacterial community shifts in root, rhizome and rhizosphere of nutrient‐efficient Miscanthus x giganteus from long‐term field trials

Liu

Ludewig

2019

GCB Bioenergy

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“…It has been shown that soil microorganisms play important roles in soil structure and fertility as they regulate carbon and nitrogen cycling, provide nutrients to plants (Vilà and Espinar et al 2011). Many biotic and abiotic factors may alter the microbial community, which may in turn directly or indirectly influence the soil ecosystem (Lavecchia andCurci et al 2015, Rodrigues andPineda et al 2015). In addition, it has shown that climate change and human disturbance effect on microbial diversity, such as environmental stress (Gordon and Haygarth et al 2008), invasive species (Fitoussi and Penmouratov et al 2016), and fertilization methods (Wu and Li.…”

Section: Introductionmentioning

confidence: 99%

Characteristics of the rhizosphere bacterial community across different cultivation years in saline–alkaline paddy soils of Songnen Plain of China

Cui

Wang

et al. 2018

Can. J. Microbiol.

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The characteristics of the rhizosphere microbial community across different cultivation years (from 1, 3, 5, 15, 20, and 50 years) in saline-alkaline paddy soils in Songnen Plain of China were investigated based on sequence variation of 16S rDNA using Illumina MiSeq sequencing. The results showed that the microbial community diversity varied across cultivation years, showing higher diversity in cultivation years >15 than in cultivation years <15. The dominant microbial community of the rhizosphere was mainly composed of Proteobacteria, Acidobacteria, Firmicutes, and Bacteroidetes. Furthermore, soil microbial diversity appeared to be affected directly by changes in soil properties corresponding to cultivated years. Diversity of Proteobacteria decreased as cultivated years increased; however, that of Acidobacteria showed the opposite direction. In addition, the soil microbial communities were clustered into two main groups: one from the sites cultivated for fewer than 15 years, and the other from the sites cultivated for more than 15 years. The abundance of nitrogen-fixing microorganisms in the soil sample was significantly higher in soils cultivated for under 15 years than in those cultivated for over 15 years (P < 0.05). Moreover, there was an obvious negative correlation between the cultivated years and Methanosarcina. Our findings on the dynamics of microbial community and its specific function in response to variable soil conditions are important for understanding and improving physical and chemical characteristics of saline-alkaline soil in Songnen Plain of China.

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“…Studies on the impact of different soil fertilization managements on the composition of the bacterial community in the rhizosphere of sorghum have shown that the bacterial community is more affected by compost than by inorganic fertilizers [8]. In addition, geographic location and soil characteristics are the main factors explaining the variability in the structure of the bacterial community in the rhizosphere of sorghum [9].…”

Section: Introductionmentioning

confidence: 99%

Co-Variation of Bacterial and Fungal Communities in Different Sorghum Cultivars and Growth Stages is Soil Dependent

2017

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Rhizosphere microbial community composition can be influenced by different biotic and abiotic factors. We investigated the composition and co-variation of rhizosphere bacterial and fungal communities from two sorghum genotypes (BRS330 and SRN-39) in three different plant growth stages (emergence of the second leaf, (day10), vegetative to reproductive differentiation point (day 35), and at the last visible emerged leaf (day 50)) in two different soil types, Clue field (CF) and Vredepeel (VD). We observed that either bacterial or fungal community had its composition stronger influenced by soil followed by plant growth stage and cultivar. However, the influence of plant growth stage was higher on fungal community composition than on the bacterial community composition. Furthermore, we showed that sorghum rhizosphere bacterial and fungal communities can affect each other’s composition and structure. The decrease in relative abundance of the fungus genus Gibberella over plant growth stages was followed by decrease of the bacterial families Oxalobacteracea and Sphingobacteriacea. Although cultivar effect was not the major responsible for bacterial and fungal community composition, cultivar SRN-39 showed to promote a stronger co-variance between bacterial and fungal communities.Electronic supplementary materialThe online version of this article (10.1007/s00248-017-1108-6) contains supplementary material, which is available to authorized users.

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Microbial 16S gene-based composition of a sorghum cropped rhizosphere soil under different fertilization managements

Cited by 39 publications

References 54 publications

Nitrogen‐dependent bacterial community shifts in root, rhizome and rhizosphere of nutrient‐efficient Miscanthus x giganteus from long‐term field trials

Nitrogen‐dependent bacterial community shifts in root, rhizome and rhizosphere of nutrient‐efficient Miscanthus x giganteus from long‐term field trials

Characteristics of the rhizosphere bacterial community across different cultivation years in saline–alkaline paddy soils of Songnen Plain of China

Co-Variation of Bacterial and Fungal Communities in Different Sorghum Cultivars and Growth Stages is Soil Dependent

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