Silicon Application Modulates the Growth, Rhizosphere Soil Characteristics, and Bacterial Community Structure in Sugarcane

Deng, Quanqing; Yu, Tao; Zeng, Zhen; Ashraf, Umair; Shi, Qihan; Huang, Sixiu; Lian, Tengxiang; Chen, Jianwen; Muzaffar, Wardah; Shen, Wei

doi:10.3389/fpls.2021.710139

Cited by 16 publications

(11 citation statements)

References 58 publications

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“…Generally, Si can influence the soil microbial community in the rhizosphere soil microenvironment in three main ways. The first is by directly modulating the microbial growth [ 17 ]; the second is by recognizing that Si can change soil microbial habitats by modifying soil physiochemical properties and enzymes; and the third is by recognizing that Si can induce the establishment of new advantaged microbial communities by altering rhizosphere soil metabolites [ 25 , 26 , 48 , 49 ]. Similarly, the findings of the present study suggested remarkable differences in the diversity and structure of the rhizosphere soil bacterial community in RS and RSSI treatments ( Table S1 , Figure 3 ).…”

Section: Discussionmentioning

confidence: 99%

“…The pot experiment was conducted in a randomized block design by using four Si fertilizer treatments including controls: (i) CK treatment—plants were irrigated by ultrapure water without soluble Si, and not inoculated with R. solanacearum ; (ii) SI treatment—plants were irrigated with a 3 mM sodium silicate solution, but not inoculated with R. solanacearum ; (iii) RS treatment—plants were irrigated with ultrapure water without soluble Si, but inoculated with R. solanacearum ; (iv) RSSI treatment—plants were irrigated with a 3 mM sodium silicate solution and inoculated with R. solanacearum [ 48 ]. Each treatment was performed in quintuplicate with 12 plants in each replication.…”

Section: Methodsmentioning

confidence: 99%

“…Furthermore, the soil samples were mixed and used for three separate determinations of soil chemical properties, soil enzymes and soil microorganisms, and metabolite profiles. In general, the subsample of soil properties was air-dried to estimate the available soil Si (ASi), pH, organic matter (OM), total nitrogen (TN) content, total phosphorus (TP) content, total potassium (TK) content, ammonia (NH 4 + ) content, nitrate (NO 3 − ) content, available phosphorus (AP), available potassium (AK), water-soluble organic carbon (WSOC) and cation exchange capacity (CEC) [ 48 ]. Soil catalase (S-CAT), sucrase (S-SC), and urease (S-UE) and acid phosphatase (S-ACP) activities were determined using the methods of Abdul Rahman et al [ 58 ].…”

Section: Methodsmentioning

confidence: 99%

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Silicon Application for the Modulation of Rhizosphere Soil Bacterial Community Structures and Metabolite Profiles in Peanut under Ralstonia solanacearum Inoculation

Deng

Líu

et al. 2023

IJMS

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Silicon (Si) has been shown to promote peanut growth and yield, but whether Si can enhance the resistance against peanut bacterial wilt (PBW) caused by Ralstonia solanacearum, identified as a soil-borne pathogen, is still unclear. A question regarding whether Si enhances the resistance of PBW is still unclear. Here, an in vitro R. solanacearum inoculation experiment was conducted to study the effects of Si application on the disease severity and phenotype of peanuts, as well as the microbial ecology of the rhizosphere. Results revealed that Si treatment significantly reduced the disease rate, with a decrement PBW severity of 37.50% as compared to non-Si treatment. The soil available Si (ASi) significantly increased by 13.62–44.87%, and catalase activity improved by 3.01–3.10%, which displayed obvious discrimination between non-Si and Si treatments. Furthermore, the rhizosphere soil bacterial community structures and metabolite profiles dramatically changed under Si treatment. Three significantly changed bacterial taxa were observed, which showed significant abundance under Si treatment, whereas the genus Ralstonia genus was significantly suppressed by Si. Similarly, nine differential metabolites were identified to involve into unsaturated fatty acids via a biosynthesis pathway. Significant correlations were also displayed between soil physiochemical properties and enzymes, the bacterial community, and the differential metabolites by pairwise comparisons. Overall, this study reports that Si application mediated the evolution of soil physicochemical properties, the bacterial community, and metabolite profiles in the soil rhizosphere, which significantly affects the colonization of the Ralstonia genus and provides a new theoretical basis for Si application in PBW prevention.

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Section: Discussionmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

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Silicon Application for the Modulation of Rhizosphere Soil Bacterial Community Structures and Metabolite Profiles in Peanut under Ralstonia solanacearum Inoculation

Deng

Líu

et al. 2023

IJMS

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“…Therefore, we hypothesized that the bacterial and archaeal community diversity and composition in three types of soil were influenced by eight soil geochemical properties: pH, moisture content, and total carbon are important properties of soils; nitrate, nitrite, ammonium, and phosphate are often limiting nutrients in poor nutrition areas; and silicate is a ubiquitous nutrient and can also affect microbial communities when added to soil as fertilizer [ 29 ]. The competing hypothesis is that not all of these eight soil geochemical properties play a role.…”

Section: Introductionmentioning

confidence: 99%

Soil Geochemical Properties Influencing the Diversity of Bacteria and Archaea in Soils of the Kitezh Lake Area, Antarctica

Wang

Han

et al. 2022

Biology

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It is believed that polar regions are influenced by global warming more significantly, and because polar regions are less affected by human activities, they have certain reference values for future predictions. This study aimed to investigate the effects of climate warming on soil microbial communities in lake areas, taking Kitezh Lake, Antarctica as the research area. Below-peak soil, intertidal soil, and sediment were taken at the sampling sites, and we hypothesized that the diversity and composition of the bacterial and archaeal communities were different among the three sampling sites. Through 16S rDNA sequencing and analysis, bacteria and archaea with high abundance were obtained. Based on canonical correspondence analysis and redundancy analysis, pH and phosphate had a great influence on the bacterial community whereas pH and nitrite had a great influence on the archaeal community. Weighted gene coexpression network analysis was used to find the hub bacteria and archaea related to geochemical factors. The results showed that in addition to pH, phosphate, and nitrite, moisture content, ammonium, nitrate, and total carbon content also play important roles in microbial diversity and structure at different sites by changing the abundance of some key microbiota.

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“…Solid soil particles, including nanosized minerals, can also infl uence bacteria's enzymatic activity [6]. In addition, many preparations for crop production contain various minerals, for example, bentonite, vermiculite, and silica [6][7][8] . Th e infl uence of abiotic factors on B. subtilis IMV B-7023 phytase activity has not previously been studied, so this was the aim of this research.…”

mentioning

confidence: 99%

Abiotic Factors Influence on Bacillus subtilis IMV B-7023 Phytase Activity

Chuiko¹,

Chobotarov²,

Курдиш³

2023

Mikrobiol. Z.

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Bacteria of the Bacillus genus can synthesize specific phytase enzymes. This property is especially important for soil bacteria. It helps to mineralize phytin and phytates and to provide these bacteria and plants (in the root zone of which they live) with the available phosphorus. Our previous studies have demonstrated that the Bacillus subtilis IMV B-7023 strain exhibits a phytase activity and can use phytate as a nutrition source. It is a component of the «Azogran» complex bacterial preparation for crop production. As known, abiotic environmental factors can influence the phytase activity of bacteria. In particular, the phytase activity changes significantly under different pH and temperatures. Solid soil particles, including nanosized minerals, can also influence bacteria’s enzymatic activity. The influence of abiotic factors on Bacillus subtilis IMV B-7023 phytase activity has not previously been studied, so this was the aim of our research. Methods. The phytase activity of bacteria was studied by measuring the amount of phosphate released from sodium phytate during the enzymatic reaction, and the nanomaterials’ influence on growth — by cultivation methods. Results. The highest B. subtilis IMV B-7023 phytase activity was observed at 28°C. Also, there was no B. subtilis IMV B-7023 phytase activity at pH 4—6. However, this activity increased at pH 7 and did not change significantly with increasing the buffer system pH to 12. Silicon dioxide influence on the B. subtilis IMV B-7023 growth activity during cultivation in a media with phytate as a phosphorus source depended on the nanomaterial concentration. Thus, at 0.05 and 0.5 g/L of silicon dioxide in the medium, this strain growth activity increased by 8—18%, and at 5.0 g/L of these nanoparticles, bacteria growth inhibition by 19% was observed. At the same time, clay mineral bentonite did not affect the B. subtilis IMV B-7023 growth under the studied cultivation conditions. In addition, silicon dioxide and bentonite stimulated B. subtilis IMV B-7023 phytase activity at all studied concentrations. So, phytase activity increased by 1.82—3.34 times upon adding silicon dioxide and by 2.54—5.83 times upon adding bentonite into the medium. Since the optimal values for phytase activity of most genus Bacillus bacteria are within neutral pH values and temperatures within 50—55°C, a property of B. subtilis IMV B-7023 to show maximum phytase activity at alkaline pH and lower temperatures (28°C) and also stimulation of this activity by soil minerals increases competitiveness of this strain as a component of a bacterial preparation for crop production. Conclusions. Abiotic environmental factors influence the B. subtilis IMV B-7023 supernagrowth and phytase activity. Optimal physicochemical factors for the phytase activity of these bacteria are temperature 28°C and pH 7—12. The concentrations 0.05, 0.5, and 5.0 g/L of silicon dioxide and bentonite increase B. subtilis IMV B-7023 phytase activity. The effect of these nanoscale minerals on the B. subtilis IMV B-7023 growth depends on their type and concentration during cultivation in the medium with phytate as a phosphorus source. The obtained results indicate the potential ability of the B. subtilis IMV B-7023 strain to effectively assimilate phytates in neutral and alkaline soils, especially due to the interaction of these bacteria with bentonite and silicon dioxide nanoparticles. This expands the possibility of using B. subtilis IMV B-7023 in agricultural technologies.

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Silicon Application Modulates the Growth, Rhizosphere Soil Characteristics, and Bacterial Community Structure in Sugarcane

Cited by 16 publications

References 58 publications

Silicon Application for the Modulation of Rhizosphere Soil Bacterial Community Structures and Metabolite Profiles in Peanut under Ralstonia solanacearum Inoculation

Silicon Application for the Modulation of Rhizosphere Soil Bacterial Community Structures and Metabolite Profiles in Peanut under Ralstonia solanacearum Inoculation

Soil Geochemical Properties Influencing the Diversity of Bacteria and Archaea in Soils of the Kitezh Lake Area, Antarctica

Abiotic Factors Influence on Bacillus subtilis IMV B-7023 Phytase Activity

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