Isolation and Identification of Phosphate Solubilizing Bacillus spp. from Tamarix ramosissima Rhizosphere and Their Effect on Growth of Phaseolus vulgaris Under Salinity Stress

Abdelmoteleb, Ali; González-Mendoza, Daniel

doi:10.1080/01490451.2020.1795321

Cited by 25 publications

(9 citation statements)

References 18 publications

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“…2003 ) and in this study IAA producing ST bacteria revitalized it by conferring the salt tolerant ability to plants. Similar effect of salt tolerant PGPR on photosynthetic pigment protection of host plant were also reported in common bean and peanut ( Abdelmoteleb and Gonzalez-Mendoza, 2020 , Alexander et al, 2020 ).…”

Section: Discussionsupporting

confidence: 79%

Phytobeneficial and salt stress mitigating efficacy of IAA producing salt tolerant strains in Gossypium hirsutum

Saleem

Iqbal

Ahmed

et al. 2021

Saudi Journal of Biological Sciences

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Salinity is one of the major agricultural concern that significantly limits the crop productivity. The plant growth promoting rhizobacteria (PGPR) may contribute in sustainable crop production under salt stress. The current study was designed to isolate the Indole Acetic Acid (IAA) producing salt tolerant PGPR to promote the growth of cotton ( Gossypium hirsutum , FH-142) and induce its salt stress tolerance. Ten Salt Tolerant (ST) bacterial strains were screened for their PGP trait in vitro and evaluated for their beneficial effect on cotton plants growth by plant–microbe interaction assay in lab and under natural condition. GC–MS analysis of the metabolites of the selected bacterial strains confirmed the presence of indolic compounds like indole, indole-3-butyramide, benzylmalonic acid and 4-methyl-2-pyrrolidinone. The bacterial isolates ST4, ST5, ST6, ST15, ST16, ST17, ST18, ST20, ST22 and ST25 were identified as Bacillus sp., B. sonorensis , B. cereus , B. subtilis, Brevibacillus sp. B. safensis , B. paramycoides, Bacillus sp., B. cereus and B. tequilensis respectively on the basis of 16S rDNA sequencing. Bacteria inoculated plants had a significant (P < 0.05) increase in percentage germination up to (31%), root length (17%) and shoot length (34%) in lab while in wire house pot experiments, maximum enhancement in root length (31%) and shoot length (29%) was observed. ST bacterial strains inoculation improved the chlorophyll content index (34%), relative water content (36%), leaf area (33%), absorption of K + (28%) and decreased the uptake of Na + (58%) from soil in plants under salt stress over control in pot experiment. These ST PGPR have the potential to act as plant defense agents by enhancing plant growth, productivity, and tolerance in saline environment.

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Section: Discussionsupporting

confidence: 79%

Phytobeneficial and salt stress mitigating efficacy of IAA producing salt tolerant strains in Gossypium hirsutum

Saleem

Iqbal

Ahmed

et al. 2021

Saudi Journal of Biological Sciences

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“…The Bacillus cereus was able to solubilize 159 µg/ml tricalcium phosphate after 10 days in Pikovskaya's broth (Salwan et al, 2021). Rhizospheric isolate Bacillus cereus was able to solubilize 140 µg/ml phosphate after 3 days (Abdelmoteleb and Gonzalez-Mendoza, 2020). Bacillus xijun isolated from rhizospheric soil solubilized 130 µg/ml phosphate after 15 days showing pH drop from 7.0 to 4.7 (Zhong et al, 2021).…”

Section: Phosphate Solubilizationmentioning

confidence: 99%

Plant Growth-Promoting Activity of Bacillus sp. PG-8 Isolated From Fermented Panchagavya and Its Effect on the Growth of Arachis hypogea

et al. 2022

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A natural bacterial isolate that shows multiple plant growth-promoting activities was isolated from fermented panchagavya (a mixture of five indigenous cow products). It is a gram-positive, endospore-forming bacteria identified as Bacillus sp. PG-8 by 16S rRNA gene sequencing. The Bacillus sp. PG-8 have shown multiple plant growth-promoting activities as indole acetic acid (2.78 μg/ml), gibberellic acid (0.7 mg/ml), ammonia (6.51 μmol/ml), exopolysaccharide (2.6% w/v) production, and phosphate solubilization (198.27 μg/ml). The Bacillus sp. PG-8 has ability to survive under the abiotic stress conditions such as temperature (28–46°C), pH (5.0–12.0), salt (0.5–20.0% w/v NaCl), and osmotic resistance (1–10% w/v PEG-6000). Due to its diverse characteristics, the effect of Bacillus sp. PG-8 was tested on Arachis hypogea (groundnut). The seeds treated with Bacillus sp. PG-8 demonstrated a 70% germination rate with seedling vigor indexes of 154. In pot study, Arachis hypogea growth showed 1.38, 1.38, 1.32, 1.39, and 1.52 times increase in root hair number, leaf numbers, leaf width, leaf length, and leaf area, respectively. The addition of Bacillus sp. PG-8 culture to the Arachis hypogea plant resulted in a significant improvement in plant growth. Bacillus sp. PG-8 is a spore producer with stress tolerance and multiple plant growth-promoting properties, which makes it a potential liquid biofertilizer candidate.

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“…while producing IAA restored cotton systemic resistance to salt-stress [ 27 ]. Analogously, the protective effects of salt tolerant PGPR on photosynthetic pigment were also recorded in Phaseolus vulgaris L. and Arachis hypogaea L. [ 28 ]. Azarmi-Atajan et al [ 29 ] reported that inoculating Lactuca sativa L. with strains of Pseudomonas sp.…”

Section: Discussionmentioning

confidence: 98%

The Role of Plant Growth Promoting Rhizosphere Microbiome as Alternative Biofertilizer in Boosting Solanum melongena L. Adaptation to Salinity Stress

Mokabel

Olama

Ali

et al. 2022

Plants

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Recent ecological perturbations are presumed to be minimized by the application of biofertilizers as a safe alternative to chemical fertilizers. The current study aims to use bioinoculum (I) as an alternative biofertilizer and to alleviate salinity stress in the cultivar Solanum melongena L. Baldi. The salinity drench was 200 mM NaCl (S), which was used with different treatments (0; I; S; S + I) in pots prefilled with clay and sand (1:2). Results showed that salinity stress inhibited both plant fresh and dry weights, water content, and photosynthetic pigments. The content of root spermine (Spm), spermidine (Spd), and puterscine (Put) decreased. However, addition of the bioinoculum to salt-treated plants increased pigment content (80.35, 39.25, and 82.44% for chl a, chl b, and carotenoids, respectively). Similarly, K+, K+/Na+, Ca2+, P, and N contents were significantly enhanced. Increases were recorded for Spm + Spd and Put in root and shoot (8.4-F, 1.6-F and 2.04-F, 2.13-F, respectively). RAPD PCR showed gene expression upregulation of photosystem II D2 protein, glutathione reductase, glutathione-S-transferase, protease I, and protease II. The current work recommends application of the selected bioinoculum as a green biofertilizer and biopesticide. Additionally, the studied eggplant cultivar can be regarded as a source of salt tolerance genes in agricultural fields.

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Isolation and Identification of Phosphate Solubilizing Bacillus spp. from Tamarix ramosissima Rhizosphere and Their Effect on Growth of Phaseolus vulgaris Under Salinity Stress

Cited by 25 publications

References 18 publications

Phytobeneficial and salt stress mitigating efficacy of IAA producing salt tolerant strains in Gossypium hirsutum

Phytobeneficial and salt stress mitigating efficacy of IAA producing salt tolerant strains in Gossypium hirsutum

Plant Growth-Promoting Activity of Bacillus sp. PG-8 Isolated From Fermented Panchagavya and Its Effect on the Growth of Arachis hypogea

The Role of Plant Growth Promoting Rhizosphere Microbiome as Alternative Biofertilizer in Boosting Solanum melongena L. Adaptation to Salinity Stress

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