Morphophysiological and Nutritional Responses of Canola and Wheat to Water Deficit Stress by the Application of Plant Growth-Promoting Bacteria, Nano-Silicon, and Silicon

Valizadeh-rad, Keyvan; Motesharezadeh, Babak; Khonakdar, Hossein Ali; Jalali, Mahboobeh; Etesami, Hassan; Javadzarin, Iman

doi:10.1007/s00344-022-10824-w

Cited by 17 publications

(9 citation statements)

References 89 publications

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“…24 Valizadeh-rad et al demonstrated that SiO 2 NPs significantly enhanced the resistance of both canola and wheat to drought-stress in comparison with silicon presented in a salt form (potassium silicate) at the same dose of 200 mg-Si/kg-soil. 25 In general, the literature demonstrates that the application of nanosilica has a positive impact on crop yield. However, the physiological responses and biological metabolites directly impacted by nano-silica are unclear, and investigations on the environmental and human health risks related to this novel fertiliser are needed.…”

Section: Introductionmentioning

confidence: 99%

“…Valizadeh‐rad et al. demonstrated that SiO 2 NPs significantly enhanced the resistance of both canola and wheat to drought‐stress in comparison with silicon presented in a salt form (potassium silicate) at the same dose of 200 mg‐Si/kg‐soil 25 . In general, the literature demonstrates that the application of nano‐silica has a positive impact on crop yield.…”

Section: Introductionmentioning

confidence: 99%

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Nano‐silicon fertiliser increases the yield and quality of cherry radish

Xu,

Guo,

Hao

et al. 2023

Modern Agriculture

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Although silicon‐based nanomaterials (Si‐based NMs) can promote crop yield and alleviate biotic and abiotic stress, the underlying performance mechanisms are unknown. In the present study, the effect of the root application of Si‐based NMs on the physiological responses of cherry radish (Raphanus sativus L.) was evaluated in a life cycle experiment. Root exposure to 0.1% (w/w) Si‐based NMs significantly increased total fresh weight, total chlorophyll and carotenoids by 36.0%, 14.2% and 18.7%, respectively, relative to untreated controls. The nutritional content of the edible tissue was significantly enhanced, with an increase of 23.7% in reducing sugar, 24.8% in total sugar, and 232.7% in proteins; in addition, a number of nutritional elements (Cu, Mn, Fe, Zn, K, Ca, and P) were increased. Si‐based NMs exposure positively altered the phytohormone network and decreased abscisic acid content, both of which promoted radish fresh weight. LC‐MS‐based metabolomic analysis shows that Si‐based NMs increased the contents of most carbohydrates (e.g., α‐D‐glucose, acetylgalactosamine, lactose, fructose, etc.) and amino acids (e.g., asparagine, glutamic acid, glutamine, valine, arginine, etc.), subsequently improving overall nutritional values. Overall, nanoscale Si‐based agrochemicals have significant potential as a novel strategy for the biofortification of vegetable crops in sustainable nano‐enabled agriculture.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Nano‐silicon fertiliser increases the yield and quality of cherry radish

Xu,

Guo,

Hao

et al. 2023

Modern Agriculture

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“…It is well known that applying PGPB can increase plant biomass in drought-exposed plants [11]. The underlying mechanisms may include the proliferation of plant root systems, increased nutrient availability, and increased water uptake [51,52]. PGPB can improve the growth and yield of wheat plants [13].…”

Section: Discussionmentioning

confidence: 99%

Enhancing Water Deficit Stress Tolerance in Wheat: Synergistic Effects of Silicon Nanoparticles and Plant Growth-Promoting Bacteria

Davoudi,

Jalali,

Valizadeh-Rad

et al. 2024

Preprint

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Water deficit stress significantly reduces grain yield in bread wheat, requiring improved tolerance in cultivars. Despite recent breeding advancements, enhancing tolerance remains crucial. Plant growth-promoting bacteria (PGPB) and silicon (Si) independently boost drought resistance through different mechanisms, but their combined effects are understudied. This research explored the combined impacts of silicon dioxide nanoparticles (SiO2 NPs) and native PGPB on wheat's morphophysiological and nutritional responses under water deficit stress. The study tested various SiO2 NP concentrations (control, soil application of 100 and 200 mg/kg, and foliar application of 200 mg/kg) and PGPB strains (no bacterium, Pseudomonas fluorescens p-187, and Pseudomonas putida p-168). Results showed that SiO2 NPs significantly improved wheat tolerance to water stress, increasing shoot dry weight by 4.40 g/pot with 100 mg/kg Si-NPs and Pseudomonas fluorescens p-187 compared to the control, and root dry weight by 1.05 g/pot with foliar application of 200 mg/kg Si-NPs and Pseudomonas putida p-168. SiO2 NPs and PGPB also boosted N, P, K, and Si concentrations in wheat shoots, reduced malondialdehyde content, and increased superoxide dismutase and glutathione peroxidase activities. The best performance was achieved with 200 mg/kg Si-NPs and Pseudomonas fluorescens p-187. The study confirms that combining Si sources with PGPB effectively enhances wheat's drought tolerance. This synergistic approach offers an environmentally sustainable strategy to bolster crop resilience against water deficit stress, ensuring better wheat yield in drought-prone conditions.

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“…Most research reports the positive effects of Bacillus spp. on the growth and productivity of common wheat [4,15,16]. According to research conducted by many authors, bacteria of the genus Pseudomonas are (among other things) involved in disease control and promoting plant growth [17], and those of the genus Azotobacter positively affect the seed germination, root length, and shoots of crop plants through the synthesis of phytohormones and BNF [18].…”

Section: Introductionmentioning

confidence: 99%

Response of Soil Microorganisms to and Yield of Spelt Wheat following the Application of Bacterial Consortia and the Subsequent Effect of Cover Crops in Organic Farming

Górski,

Rosa,

Niewiadomska

et al. 2024

Agronomy

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In modern agriculture, more and more attention is being paid to the use of microorganisms that can increase crop productivity and quality even under adverse weather conditions. Due to the declining biodiversity of crops and the occurrence of soil erosion and nutrient losses, the introduction of cover crops (CC) can be a positive crop management technique. In the field study presented here, the effect of growing spring barley with CCs applied simultaneously with bacterial consortia on the ratio of the total number of bacteria to actinobacteria (B/A) and the number of fungi in the soil was evaluated. The biomass yield of CCs and the subsequent effect on the yield of spelt wheat grown with the application of bacterial consortia were also evaluated. The bacterial consortia applied included consortium 1, comprising Bacillus subtilis, Bacillus amyloliquefaciens, and Pseudomonas fluorescens, and consortium 2, comprising Bacillus subtilis, Bacillus amyloliquefaciens, Pseudomonas fluorescens, and Azotobacter chroococcum. The CCs were red clover, red clover + Italian ryegrass, and Italian ryegrass. The most favorable B/A ratio and the highest number of fungi were obtained after growing spring barley with a CC consisting of a mixture of red clover and Italian ryegrass when using bacterial consortium 2. These conditions additionally had the most favorable influence on spelt wheat. The combination of such a forecrop with the application of bacterial consortium 2 resulted in the highest yields of spelt wheat.

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Morphophysiological and Nutritional Responses of Canola and Wheat to Water Deficit Stress by the Application of Plant Growth-Promoting Bacteria, Nano-Silicon, and Silicon

Cited by 17 publications

References 89 publications

Nano‐silicon fertiliser increases the yield and quality of cherry radish

Nano‐silicon fertiliser increases the yield and quality of cherry radish

Enhancing Water Deficit Stress Tolerance in Wheat: Synergistic Effects of Silicon Nanoparticles and Plant Growth-Promoting Bacteria

Response of Soil Microorganisms to and Yield of Spelt Wheat following the Application of Bacterial Consortia and the Subsequent Effect of Cover Crops in Organic Farming

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