Beneficial effects of native phosphate solubilizing bacteria on peanut (Arachis hypogaea L) growth and phosphorus acquisition

Anzuay, María Soledad; Ludueña, Liliana Mercedes; Angelini, Jorge Guillermo; Fabra, Adriana; Taurian, Tania

doi:10.1007/s13199-015-0337-z

Cited by 37 publications

(21 citation statements)

References 42 publications

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“…Eighteen strains belonging to the bacterial genera Serratia , Enterobacter , Acinetobacter , Enterococcus and Bacillus , originally isolated from stem, roots and root nodules of peanut plants, were tested in soils with low P content under microcosm conditions. After plant inoculation, many of the strains were found to improve at least one of the various growth parameters analysed, four of the strains increasing total aerial P and N content (Anzuay et al, 2015). Peanut is usually cultivated under rotation systems that include crops such as maize.…”

Section: Phosphobacteria‐mediated Amelioration Of Plant Growth and P mentioning

confidence: 99%

Phosphobacteria as key actors to overcome phosphorus deficiency in plants

Castagno

Sannazzaro

González

et al. 2021

Annals of Applied Biology

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Phosphorus (P), an essential macronutrient for all living organisms, is required in large amounts for the growth and development of plants. Although total soil P level is high, P bioavailability to plants is suboptimal in most soils because of high fixation rates into inorganic and organic insoluble complexes. Hence, plants are highly dependent on mechanisms that allow them to adapt to low‐phosphate stress and/or achieve suitable levels of soluble P on the root surface. In this regard, the rhizospheric microbiota plays a key role in facilitating P nutrition and has long been recognised for their potential use as an environmental‐friendly alternative to chemical P fertilisation. Herein, we outline the advances in the identification of phosphate solubilising bacteria and phosphate mineralising bacteria, collectively known as phosphobacteria, and their role in rendering P accessible to plants. We review and discuss research progress related to the introduction of phosphobacteria and/or P‐mineralising enzymes into soil, as well as plant transformation with bacterial genes that encode such enzymes, as strategies to improve plant growth and P nutrition. We also provide an overview of studies about the impact of variations in soil P levels on the structure of soil and rhizospheric microbial communities and the potential consequences of such perturbations on plant growth. Finally, we discuss possible directions for future research to optimise the efficiency of biofertilisation strategies based on the use of phosphobacteria.

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Section: Phosphobacteria‐mediated Amelioration Of Plant Growth and P mentioning

confidence: 99%

Phosphobacteria as key actors to overcome phosphorus deficiency in plants

Castagno

Sannazzaro

González

et al. 2021

Annals of Applied Biology

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“…We hope the results obtained in greenhouse and field inoculation experiments with selected P-solubilizing bacterial isolates and plant species subjected to reduced amounts of P-fertilizer could serve as an alert to producers about the high costs of normally used fertilization strategies, the concerns about finite P sources, and the environmentally friend biotechnological option of using PGPR. Based on previous works which addressed P-solubilization potential by PGPR inoculation in plants (mainly Khalafallah et al, 1982 ; Dutta and Bandyopadhyay, 2009 ; Kumar et al, 2014 ; Lavakush et al, 2014 ; Anzuay et al, 2015 ; Kaur and Reddy, 2015 ), we consider that an average reduction of 33% in P-fertilization could be achieved with the use of high efficient P-solubilizing bacterial isolates as crop inoculants, as indicated on the proposed biotechnological approach in Figure 1 . Therefore, future experiments need to be specifically designed for such purposes.…”

Section: Reduction Of P-fertilization Through Pgpr Inoculationmentioning

confidence: 99%

Is Phosphate Solubilization the Forgotten Child of Plant Growth-Promoting Rhizobacteria?

et al. 2018

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“…Although there are several reports on phosphate solubilization and acid phosphatase production by Serratia sp. [44], [7], [3], [48], events of phosphate solubilization within saline mangrove soils is relatively less explored [24], [40], [50]. In recent years, different screening programs have been performed in saline habitats in order to isolate and characterize novel enzymatic activities with different properties to those of conventional enzymes.…”

Section: Introductionmentioning

confidence: 99%

Phosphate solubilization and acid phosphatase activity of Serratia sp. isolated from mangrove soil of Mahanadi river delta, Odisha, India

Behera

Yadav

Singh

et al. 2017

Journal of Genetic Engineering and Biotechnology

177

109

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Phosphorus is an essential element for all life forms. Phosphate solubilizing bacteria are capable of converting phosphate into a bioavailable form through solubilization and mineralization processes. Hence in the present study a phosphate solubilizing bacterium, PSB-37, was isolated from mangrove soil of the Mahanadi river delta using NBRIP-agar and NBRIP-BPB broth containing tricalcium phosphate as the phosphate source. Based on phenotypic and molecular characterization, the strain was identified as Serratia sp. The maximum phosphate solubilizing activity of the strain was determined to be 44.84 μg/ml, accompanied by a decrease in pH of the growth medium from 7.0 to 3.15. During phosphate solubilization, various organic acids, such as malic acid (237 mg/l), lactic acid (599.5 mg/l) and acetic acid (5.0 mg/l) were also detected in the broth culture through HPLC analysis. Acid phosphatase activity was determined by performing p-nitrophenyl phosphate assay (pNPP) of the bacterial broth culture. Optimum acid phosphatase activity was observed at 48 h of incubation (76.808 U/ml), temperature of 45 °C (77.87 U/ml), an agitation rate of 100 rpm (80.40 U/ml), pH 5.0 (80.66 U/ml) and with glucose as a original carbon source (80.6 U/ml) and ammonium sulphate as a original nitrogen source (80.92 U/ml). Characterization of the partially purified acid phosphatase showed maximum activity at pH 5.0 (85.6 U/ml), temperature of 45 °C (97.87 U/ml) and substrate concentration of 2.5 mg/ml (92.7 U/ml). Hence the present phosphate solubilizing and acid phosphatase production activity of the bacterium may have probable use for future industrial, agricultural and biotechnological application.

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Beneficial effects of native phosphate solubilizing bacteria on peanut (Arachis hypogaea L) growth and phosphorus acquisition

Abstract: This study analyses the effect of inoculation of native phosphate solubilizing bacteria on peanut (Arachis hypogaea L.) growth and phosphorus acquisition. Peanut

Cited by 37 publications

References 42 publications

Phosphobacteria as key actors to overcome phosphorus deficiency in plants

Phosphobacteria as key actors to overcome phosphorus deficiency in plants

Is Phosphate Solubilization the Forgotten Child of Plant Growth-Promoting Rhizobacteria?

Phosphate solubilization and acid phosphatase activity of Serratia sp. isolated from mangrove soil of Mahanadi river delta, Odisha, India

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