Effects of planting quinoa on soil properties and microbiome in saline soil

Hu, Huiying; Shao, Tianyuan; Gao, Xiumei; Long, Xiaohua; Rengel, Zed

doi:10.1002/ldr.4288

Cited by 4 publications

(3 citation statements)

References 51 publications

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“…Additionally, they play a crucial role in mitigating abiotic stress through nitrogen fixation and promoting plant growth ( Bruto et al, 2014 ). Therefore, Proteobacteria can be applied in agricultural production as biological control agents in soil–plant ecosystems ( Hu et al, 2022 ). In the current investigation, the application of compost resulted in a notable increase in the abundance of Actinobacteriota and Chloroflexi, while concurrently causing a significant decrease in the abundance of Firmicutes when compared to the control group.…”

Section: Resultsmentioning

confidence: 99%

Effects of compost as a soil amendment on bacterial community diversity in saline–alkali soil

Xu,

Yu,

Chen

et al. 2023

Front. Microbiol.

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IntroductionSoil salinization poses a worldwide challenge that hampers agricultural productivity.MethodsEmploying high-throughput sequencing technology, we conducted an investigation to examine the impact of compost on the diversity of bacterial communities in saline soils. Our study focused on exploring the diversity of bacterial communities in the inter-root soil of plants following composting and the subsequent addition of compost to saline soils.ResultsCompared to the initial composting stage, Alpha diversity results showed a greater diversity of bacteria during the rot stage. The germination index reaches 90% and the compost reaches maturity. The main bacterial genera in compost maturation stage are Flavobacterium, Saccharomonospora, Luteimonas and Streptomyces. Proteobacteria, Firmicutes, and Actinobacteria were the dominant phyla in the soil after the addition of compost. The application of compost has increased the abundance of Actinobacteria and Chloroflexi by 7.6 and 6.6%, respectively, but decreased the abundance of Firmicutes from 25.12 to 18.77%. Redundancy analysis revealed that soil factors pH, solid urease, organic matter, and total nitrogen were closely related to bacterial communities.DiscussionThe addition of compost effectively reduced soil pH and increased soil enzyme activity and organic matter content. An analysis of this study provides theoretical support for compost’s use as a saline soil amendment.

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Section: Resultsmentioning

confidence: 99%

Effects of compost as a soil amendment on bacterial community diversity in saline–alkali soil

Xu,

Yu,

Chen

et al. 2023

Front. Microbiol.

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“…The soil's pH, recognized as a cardinal determinant, orchestrates a profound influence on the opulence of microbial communities therein [46]. The preeminent phylum, Proteobacteria, validated as an integral facilitator of plant flourishing, adept in the decomposition of soil macro-molecules and the facilitation of elemental cycling, surfaces as a key protagonist in this correlation [47]. Acidobacteriota manifests an unmistakable affirmative correlation with soil effective Cu concentration and an equally conspicuous negative association with soil EC.…”

Section: The Relationship Between Soil Physicochemical Properties And...mentioning

confidence: 99%

The Effects of Vermicompost and Steel Slag Amendments on the Physicochemical Properties and Bacterial Community Structure of Acidic Soil Containing Copper Sulfide Mines

Wang,

Xue,

et al. 2024

Applied Sciences

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Acidification and heavy metal stress pose challenging threats to the terrestrial environment. This investigation endeavors to scrutinize the combined effects of vermicompost and steel slag, either singularly or in concert with Ryegrass (Lolium perenne L.), on the remediation of acidic soil resulting from sulfide copper mining. The findings illuminate substantial ameliorations in soil attributes. The application of these amendments precipitates an elevation in soil pH of 1.39–3.08, an augmentation in organic matter of 4.05–8.65, a concomitant reduction in total Cu content of 43.2–44.7%, and a marked mitigation in Cu bioavailability of 64.2–80.3%. The pronounced reduction in soil Cu bioavailability within the steel slag treatment group (L2) is noteworthy. Characterization analyses of vermicompost and steel slag further elucidate their propensity for sequestering Cu2+ ions in the soil matrix. Concerning botanical analysis, the vermicompost treatment group (L1) significantly enhances soil fertility, culminating in the accumulation of 208.35 mg kg−1 of Cu in L. perenne stems and 1412.05 mg kg−1 in the roots. Additionally, the introduction of vermicompost and steel slag enriches soil OTU (Operational Taxonomic Units) quantity, thereby augmenting soil bacterial community diversity. Particularly noteworthy is the substantial augmentation observed in OTU quantities for the vermicompost treatment group (L1) and the combined vermicompost with steel slag treatment group (L3), exhibiting increments of 126.04% and 119.53% in comparison to the control (CK). In summation, the application of vermicompost and steel slag efficaciously diminishes the bioavailability of Cu in the soil, augments Cu accumulation in L. perenne, induces shifts in the soil microbial community structure, and amplifies soil bacterial diversity. Crucially, the concomitant application of vermicompost and steel slag emerges as a holistic and promising strategy for the remediation of sulfide copper mining acidic soil.

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“…Quinoa (Chenopodium quinoa), renowned for its ability to grow in extreme environments and high nutritional value [8], serves as an ideal crop model for studying salt stress tolerance through interactions among microorganisms, plants, and soil [9][10][11]. Studies reveal that quinoa can enhance soil microbial diversity and functionality in saline ecosystems [11][12][13]. Therefore, quinoa can be utilized to rebuild the composition and functionality of microbial communities in saline soils, aiming to enhance and safeguard the essential physicochemical and biological properties of salt-affected soils [14].…”

Section: Introductionmentioning

confidence: 99%

The Salinity Survival Strategy of Chenopodium quinoa: Investigating Microbial Community Shifts and Nitrogen Cycling in Saline Soils

Zhao,

Meng,

Jin

et al. 2023

Microorganisms

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Quinoa is extensively cultivated for its nutritional value, and its exceptional capacity to endure elevated salt levels presents a promising resolution to the agricultural quandaries posed by salinity stress. However, limited research has been dedicated to elucidating the correlation between alterations in the salinity soil microbial community and nitrogen transformations. To scrutinize the underlying mechanisms behind quinoa’s salt tolerance, we assessed the changes in microbial community structure and the abundance of nitrogen transformation genes across three distinct salinity thresholds (1 g·kg−1, 3 g·kg−1, and 6 g·kg−1) at two distinct time points (35 and 70 days). The results showed the positive effect of quinoa on the soil microbial community structure, including changes in key populations and its regulatory role in soil nitrogen cycling under salt stress. Choroflexi, Acidobacteriota, and Myxococcota were inhibited by increased salinity, while the relative abundance of Bacteroidota increased. Proteobacteria and Actinobacteria showed relatively stable abundances across time and salinity levels. Quinoa possesses the ability to synthesize or modify the composition of keystone species or promote the establishment of highly complex microbial networks (modularity index > 0.4) to cope with fluctuations in external salt stress environments. Furthermore, quinoa exhibited nitrogen (N) cycling by downregulating denitrification genes (nirS, nosZ), upregulating nitrification genes (Archaeal amoA (AOA), Bacterial amoA (AOB)), and stabilizing nitrogen fixation genes (nifH) to absorb nitrate–nitrogen (NO3−_N). This study paves the way for future research on regulating quinoa, promoting soil microbial communities, and nitrogen transformation in saline environments.

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Effects of planting quinoa on soil properties and microbiome in saline soil

Cited by 4 publications

References 51 publications

Effects of compost as a soil amendment on bacterial community diversity in saline–alkali soil

Effects of compost as a soil amendment on bacterial community diversity in saline–alkali soil

The Effects of Vermicompost and Steel Slag Amendments on the Physicochemical Properties and Bacterial Community Structure of Acidic Soil Containing Copper Sulfide Mines

The Salinity Survival Strategy of Chenopodium quinoa: Investigating Microbial Community Shifts and Nitrogen Cycling in Saline Soils

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