Effect of Silicon and Phosphate-Solubilizing Bacteria on Improved Phosphorus (P) Uptake Is Not Specific to Insoluble P-Fertilized Sorghum (Sorghum bicolor L.) Plants

Rezakhani, Leila; Motesharezadeh, Babak; Tehrani, Mohammad Mehdi; Etesami, Hassan; Hosseini, Hossein Mirseyed

doi:10.1007/s00344-019-09978-x

Cited by 27 publications

(17 citation statements)

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“…Soil nitrogen, phosphorus and potassium content is considered to be an important indicator of soil fertility, which reflects the storage and supply of nutrients in the soil 55 . PSBs increase the content of nitrogen and phosphorus in soil by dissolving insoluble phosphate in the soil and fixing nitrogen 56 , 57 . PSB not only solubilize and mineralize P from insoluble compounds but also release other nutrients 58 , 59 .…”

Section: Discussionmentioning

confidence: 99%

Isolation and screening of multifunctional phosphate solubilizing bacteria and its growth-promoting effect on Chinese fir seedlings

Chen

Zhao

Wei

et al. 2021

Sci Rep

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Phosphorus-solubilizing microorganisms is a microbial fertilizer with broad application potential. In this study, 7 endophytic phosphate solubilizing bacteria were screened out from Chinese fir, and were characterized for plant growth-promoting traits. Based on morphological and 16S rRNA sequence analysis, the endophytes were distributed into 5 genera of which belong to Pseudomonas, Burkholderia, Paraburkholderia, Novosphingobium, and Ochrobactrum. HRP2, SSP2 and JRP22 were selected based on their plant growth-promoting traits for evaluation of Chinese fir growth enhancement. The growth parameters of Chinese fir seedlings after inoculation were significantly greater than those of the uninoculated control group. The results showed that PSBs HRP2, SSP2 and JRP22 increased plant height (up to 1.26 times), stem diameter (up to 40.69%) and the biomass of roots, stems and leaves (up to 21.28%, 29.09% and 20.78%) compared to the control. Total N (TN), total P (TP), total K (TK), Mg and Fe contents in leaf were positively affected by PSBs while showed a significant relationship with strain and dilution ratio. The content of TN, TP, TK, available phosphorus (AP) and available potassium (AK) in the soil increased by 0.23–1.12 mg g−1, 0.14–0.26 mg g−1, 0.33–1.92 mg g−1, 5.31–20.56 mg kg−1, 15.37–54.68 mg kg−1, respectively. Treatment with both HRP2, SSP2 and JRP22 increased leaf and root biomass as well as their N, P, K uptake by affecting soil urease and acid phosphatase activities, and the content of available nutrients in soil. In conclusion, PSB could be used as biological agents instead of chemical fertilizers for agroforestry production to reduce environmental pollution and increase the yield of Chinese fir.

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Section: Discussionmentioning

confidence: 99%

Isolation and screening of multifunctional phosphate solubilizing bacteria and its growth-promoting effect on Chinese fir seedlings

Chen

Zhao

Wei

et al. 2021

Sci Rep

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“…Si also influences the uptake of micronutrients and macronutrients in plants ( Etesami and Jeong, 2018 ; Greger et al, 2018 ). Si fertilization increases P levels in different crops and improves plant growth by enhancing P availability for plants ( Gladkova, 1982 ; Jianfeng and Takahashi, 1991 ; Singh and Sarkar, 1992 ; Owino-Gerroh and Gascho, 2005 ; Kostic et al, 2017 ; Neu et al, 2017 ; Reithmaier et al, 2017 ; Etesami and Jeong, 2018 ; Rezakhani et al, 2019a , b ; Schaller et al, 2019 ). For example, Greger et al (2018) found that Si increased the soil P availability by up to 50%.…”

Section: Si and Its Role In P Uptake/mobilizationmentioning

confidence: 99%

“…In another study, the PSB strains Bacillus simplex UT1 and Pseudomonas sp. FA1 significantly increased the shoot Si levels in sorghum ( Sorghum bicolor L.) ( Rezakhani et al, 2019a ) and wheat ( Triticum aestivum L.) ( Rezakhani et al, 2019b ). Given the role of Si in increasing soil P availability, one question that arises here is whether the Si-mediated increase in soil P availability has an inhibitory effect on bacterial solubilization of P from insoluble Pi sources.…”

Section: Synergistic Effects Of Amf Psb and Si On P Availabilitymentioning

confidence: 99%

“…The use of silicon (Si) fertilizer has also been proposed as an environmentally friendly, ecologically compatible method of improving plant growth and the resistance to multiple environmental stresses including nutritional imbalances ( Etesami and Jeong, 2018 , 2020 ; Etesami et al, 2020 ). Previous studies have reported that Si increases plant uptake of P ( Kostic et al, 2017 ; Neu et al, 2017 ; Rezakhani et al, 2019a , b ; Schaller et al, 2019 ). Combining Si and microorganism applications has been proposed to effectively induce improved plant growth and nutrition ( Etesami, 2018 ; Etesami and Adl, 2020 ).…”

Section: Introductionmentioning

confidence: 97%

“…Combining Si and microorganism applications has been proposed to effectively induce improved plant growth and nutrition ( Etesami, 2018 ; Etesami and Adl, 2020 ). Previous studies have observed that AMF and Si work together to improve plant growth regardless of the stress conditions ( Hajiboland et al, 2018 ; Moradtalab et al, 2019 ), and that PSB and Si synergistically help plants better uptake P ( Rezakhani et al, 2019a , b ). However, how AMF, PSB and Si interact to affect P availability for plants is poorly understood.…”

Section: Introductionmentioning

confidence: 99%

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Contribution of Arbuscular Mycorrhizal Fungi, Phosphate–Solubilizing Bacteria, and Silicon to P Uptake by Plant

2021

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Phosphorus (P) availability is usually low in soils around the globe. Most soils have a deficiency of available P; if they are not fertilized, they will not be able to satisfy the P requirement of plants. P fertilization is generally recommended to manage soil P deficiency; however, the low efficacy of P fertilizers in acidic and in calcareous soils restricts P availability. Moreover, the overuse of P fertilizers is a cause of significant environmental concerns. However, the use of arbuscular mycorrhizal fungi (AMF), phosphate–solubilizing bacteria (PSB), and the addition of silicon (Si) are effective and economical ways to improve the availability and efficacy of P. In this review the contributions of Si, PSB, and AMF in improving the P availability is discussed. Based on what is known about them, the combined strategy of using Si along with AMF and PSB may be highly useful in improving the P availability and as a result, its uptake by plants compared to using either of them alone. A better understanding how the two microorganism groups and Si interact is crucial to preserving soil fertility and improving the economic and environmental sustainability of crop production in P deficient soils. This review summarizes and discusses the current knowledge concerning the interactions among AMF, PSB, and Si in enhancing P availability and its uptake by plants in sustainable agriculture.

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Plants Response to Metalloid Signal: Insight into the Link Between Silicon and Plant Signalling

Lap,

James,

Longkumer

et al. 2024

Signaling and Communication in Plants

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Effect of Silicon and Phosphate-Solubilizing Bacteria on Improved Phosphorus (P) Uptake Is Not Specific to Insoluble P-Fertilized Sorghum (Sorghum bicolor L.) Plants

Cited by 27 publications

References 50 publications

Isolation and screening of multifunctional phosphate solubilizing bacteria and its growth-promoting effect on Chinese fir seedlings

Isolation and screening of multifunctional phosphate solubilizing bacteria and its growth-promoting effect on Chinese fir seedlings

Contribution of Arbuscular Mycorrhizal Fungi, Phosphate–Solubilizing Bacteria, and Silicon to P Uptake by Plant

Plants Response to Metalloid Signal: Insight into the Link Between Silicon and Plant Signalling

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