Role of Phosphate-Solubilizing Bacteria in Legume Improvement

Zaidi, Almas; Khan, Mohammad Saghir; Rizvi, Asfa; Saif, Saima; Ahmad, Bilal; Shahid, M.

doi:10.1007/978-3-319-59174-2_8

Cited by 35 publications

(24 citation statements)

References 96 publications

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“…The plant growth promoting bacteria (PGPB) is known to be an emerging biofertilizer, which has been widely reported as a biologically safe tool to enhance crop productivity [ 23 ]. The phosphate-solubilizing ability of microorganism is considered to be one of the major functional aspects of PGPB and has been cited in several literature studies [ 24 , 25 , 26 , 27 ]. It has been reported that several phosphate-solubilizing PGPBs promote plant growth under salt stress such as Rhizobium and Pseudomonas (maize) [ 28 ], Acinetobacter sp.…”

Section: Introductionmentioning

confidence: 99%

The Halotolerant Rhizobacterium—Pseudomonas koreensis MU2 Enhances Inorganic Silicon and Phosphorus Use Efficiency and Augments Salt Stress Tolerance in Soybean (Glycine max L.)

et al. 2020

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Optimizing nutrient usage in plants is vital for a sustainable yield under biotic and abiotic stresses. Since silicon and phosphorus are considered key elements for plant growth, this study assessed the efficient supplementation strategy of silicon and phosphorus in soybean plants under salt stress through inoculation using the rhizospheric strain—Pseudomonas koreensis MU2. The screening analysis of MU2 showed its high salt-tolerant potential, which solubilizes both silicate and phosphate. The isolate, MU2 produced gibberellic acid (GA1, GA3) and organic acids (malic acid, citric acid, acetic acid, and tartaric acid) in pure culture under both normal and salt-stressed conditions. The combined application of MU2, silicon, and phosphorus significantly improved silicon and phosphorus uptake, reduced Na+ ion influx by 70%, and enhanced K+ uptake by 46% in the shoots of soybean plants grown under salt-stress conditions. MU2 inoculation upregulated the salt-resistant genes GmST1, GmSALT3, and GmAKT2, which significantly reduced the endogenous hormones abscisic acid and jasmonic acid while, it enhanced the salicylic acid content of soybean. In addition, MU2 inoculation strengthened the host’s antioxidant system through the reduction of lipid peroxidation and proline while, it enhanced the reduced glutathione content. Moreover, MU2 inoculation promoted root and shoot length, plant biomass, and the chlorophyll content of soybean plants. These findings suggest that MU2 could be a potential biofertilizer catalyst for the amplification of the use efficiency of silicon and phosphorus fertilizers to mitigate salt stress.

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Section: Introductionmentioning

confidence: 99%

The Halotolerant Rhizobacterium—Pseudomonas koreensis MU2 Enhances Inorganic Silicon and Phosphorus Use Efficiency and Augments Salt Stress Tolerance in Soybean (Glycine max L.)

et al. 2020

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“…This cluster of genes is known to be controlled by the global nitrogen-regulatory protein TnrA ( Supplementary Table S2), also predicted in B. subtilis PTA-271 genome and consolidating this bacterium as a good non-competitive plant partner for nitrogen. Regarding other nutrient access that also depends on soil solubilizing activity and nutrient bioavailability, it is well known that phosphate-solubilizing bacteria (PSB) may take advantage of low molecular weight molecules [42][43]. Similarly, genes of B. subtilis PTA-271 are predicted to encode for proteins involved in the production of gluconic acid and precursor of citric acid (S19-40_03830, S19-40_03828).…”

Section: 2-plant Growth Promotion Through Trophic-and Morphogenic-mentioning

confidence: 99%

Genome sequence analysis of the beneficial Bacillus subtilis PTA-271 isolated from a Vitis vinifera (cv. Chardonnay) rhizospheric soil: assets for sustainable biocontrol.

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Aziz

et al. 2020

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Background: Bacillus subtilis strains have been widely studied for their innumerous benefits in agriculture, including viticulture. Providing numerous assets, B. subtilis spp. are described as promising plant-protectors against many pathogens and as influencers to adaptations in a changing environment. This study reports the draft genome sequence of the beneficial Bacillus subtilis PTA-271, isolated from the rhizospheric soil of healthy Vitis vinifera cv. Chardonnay at Champagne Region in France, attempting to draw outlines of its full biocontrol capacity. Results: The PTA-271 genome has a size of 4,001,755 bp, with 43.78% of G + C content and 3,945 protein coding genes. The draft genome of PTA-271 highlights (1) a functional swarming motility system hypothesizing a colonizing capacity and a strong interacting capacity, (2) strong survival capacities and (3) a set of genes encoding for bioactive substances. Bioactive compounds are known both to (i) stimulate plant growth or defenses such as hormones and elicitors, (ii) influence beneficial microbiota, and (ii) counteract pathogen aggressiveness such as effectors and many kinds of detoxifying enzymes. Conclusions: The plurality of the encoded biomolecules by Bacillus subtilis PTA-271 genome appears as strengths for PTA-271 biocontrol potential towards plants, offering a big potential against a broad spectrum of pathogens despite environmental constraints.

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“…Those PSB will have capacity to convert inorganic unavailable phosphorus form to soluble forms HPO4 2and H2PO4through the process of organic acid production, chelation and ion exchange reactions (Khan et al 2007). In the future, the use of PSB in agricultural practice would decline the high cost of manufacturing phosphate fertilizers as well as they will also mobilize insoluble phosphorus in the fertilizers and soils (Alori et al 2017;Zaidi et al 2010;Banerjee et al 2010). Moreover, the use of PSB is considered as an environmental-friendly alternative to further applications of chemical-based P fertilizers (Alori et al 2017).…”

Section: Total Isolates Of Phosphate Solubilizing Bacteriamentioning

confidence: 99%

“…Moreover, PSB can solubilize the fixed phosphorus in the soil because of their capacity to convert inorganic unavailable phosphorus form to soluble forms HPO4 2and H2PO4through the process of organic acid production, chelation and ion exchange reactions and make them available to plants. Therefore, the use of PSB in agricultural practice would reduce the high cost of manufacturing phosphate fertilizers as well as would also mobilize insoluble phosphate in the fertilizers and soils (Zaidi et al 2010;Banerjee et al 2010).…”

Section: Introductionmentioning

confidence: 99%

Population of phosphate solubilizing bacteria in the liquid organic fertilizer created from palm oil bunches and pineapple rhizome

et al. 2019

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Abstract. Dermiyati, Suharjo R, Telaumbanua M, Ilmiasari Y, Yosita R, Annisa RM, Sari AW, Andayani AP, Yulianti DM. 2019. Population of phosphate solubilizing bacteria in the liquid organic fertilizer created from palm oil bunches and pineapple rhizome. Biodiversitas 20: 3315-3321. Palm oil bunches and pineapple rhizomes are abundant in Indonesia, especially in Lampung Province due to widespread agro-industrial company and they are potential to be used as sources for liquid organic fertilizer. This study was aimed to reveal microbial population within liquid organic fertilizer (LF) which was developed from palm oil bunches (PB) and pineapple rhizome (PR) and their role as phosphate solubilizing bacteria (PSB). The capability to solubilize phosphate was recorded from the clear zone area around the bacterial colony which was cultivated on Pikovskaya’s agar medium. The LF was prepared in three kinds of conditions, namely aerobic, anaerobic, and facultative an aerobic. Isolation was performed every 3 days until 24 days after incubations. The results showed that microbial population in the LF from PR was significantly higher than those developed from PB. Totally, 791 bacterial isolates were obtained from the LF; 490 isolates were achieved from PR (153 isolates from aerobic, 188 isolates from facultative anaerobic, 149 from anaerobic conditions) and 301 isolates were collected from PB (96 isolates from aerobic, 112 isolates from facultative anaerobic, 93 isolates from anaerobic conditions). In the case of isolates that were gained from PB, 166 isolates (55.15%) showed capability to degrade phosphate and 135 isolates (44.85%) did not show any capability as PSB. As for isolates obtained from PR, 269 isolates (54.90%) had capability to solubilize phosphate, meanwhile, the other 221 isolates (45.10%) did not show any capability to solubilize phosphate. Among166 isolates of PSB from PB, 60 isolates had very low capability, 55 isolates had low capability, 34 isolates had medium capability, 10 isolates had high capability and only 7 isolates had very high capability. Meanwhile, from 269 isolates of PSB obtained from PR, 135 isolates had very low capability to solubilize phosphate, 84 isolates had low capability to solubilize phosphate, 32 had medium capability to solubilize phosphate, 14 isolates had high capability to solubilize phosphate and 4 isolates produced very high capability as PSB. In total, 11 chosen isolates were selected from LF developed from both PB (7 isolates) and PR (4 isolates). Therefore, palm oil bunches and pineapple rhizomes contained PSB that can be used as LF.

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Role of Phosphate-Solubilizing Bacteria in Legume Improvement

Cited by 35 publications

References 96 publications

The Halotolerant Rhizobacterium—Pseudomonas koreensis MU2 Enhances Inorganic Silicon and Phosphorus Use Efficiency and Augments Salt Stress Tolerance in Soybean (Glycine max L.)

The Halotolerant Rhizobacterium—Pseudomonas koreensis MU2 Enhances Inorganic Silicon and Phosphorus Use Efficiency and Augments Salt Stress Tolerance in Soybean (Glycine max L.)

Genome sequence analysis of the beneficial Bacillus subtilis PTA-271 isolated from a Vitis vinifera (cv. Chardonnay) rhizospheric soil: assets for sustainable biocontrol.

Population of phosphate solubilizing bacteria in the liquid organic fertilizer created from palm oil bunches and pineapple rhizome

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