Effects of Bacillus amyloliquefaciens and different phosphorus sources on Maize plants as revealed by NMR and GC-MS based metabolomics

Vinci, Giovanni; Cozzolino, Vincenza; Mazzei, Pierluigi; Monda, Hiarhi; Savy, Davide; Δρόσος, Μάριος; Piccolo, Alessandro

doi:10.1007/s11104-018-3701-y

Cited by 49 publications

(28 citation statements)

References 49 publications

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“…A commercial microbial effector, B. velezensis FZB42 from Germany, when inoculated in maize plants along with the application of compost significantly influenced the growth and nutrient uptake. Enhanced photosynthetic activity is also reported as shown by increase in gamma‐aminobutyric acid metabolites, glucose, fructose and alanine in leaves of inoculated plants (Vinci et al ). A P‐solubilizer B. megaterium mj1212 was shown to increase the plant growth, contents of chlorophyll, sucrose, glucose, fructose and amino acids in leaves indicating enhanced photosynthetic activity in mustard (Kang et al ).…”

Section: Bacillus and Plant Growth Promotion In Crop Plantsmentioning

confidence: 94%

Bacillusspecies in soil as a natural resource for plant health and nutrition

et al. 2019

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The genus Bacillus is one of the predominant bacterial genera found in soil, and several species of this genus have been reported from diverse ecological niches. Endowed with tremendous genetic and metabolic diversity, Bacillus spp. serve multiple ecological functions in soil ecosystem from nutrient cycling to conferring stress tolerance to plants. Members of the genus Bacillus are known to have multiple beneficial traits which help the plants directly or indirectly through acquisition of nutrients, overall improvement in growth by production of phytohormones, protection from pathogens and other abiotic stressors. This functionally versatile genus is one of the most commercially exploited bacteria in the agro-biotechnology industry. Still its potential has not been realized sufficiently and requires an emphasis towards translating the relevant technologies from laboratory to land for the benefit of mankind.

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Section: Bacillus and Plant Growth Promotion In Crop Plantsmentioning

confidence: 94%

Bacillusspecies in soil as a natural resource for plant health and nutrition

et al. 2019

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“…Tetrapropyl orthosilicate (TPOS, 99.999%), 3-aminopropyltriethoxysilane (APTS, 99.999%), 1-ethyl-3-(-3-dimethylaminopropyl) carbodiimide hydrochloride (EDC), 2-propanol (IPA), Ammonium hydroxide (NH 4 OH 33 %wt solution), and water from Sigma-Aldrich (Milan, Italy) were used as received. Humic acids were extracted from a mature compost made with manure (HA), as described elsewhere [34].…”

Section: Methodsmentioning

confidence: 99%

Tuning Functional Behavior of Humic Acids through Interactions with Stöber Silica Nanoparticles

et al. 2020

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Humic acids (HA) exhibit fascinating multifunctional features, yet degradation phenomena as well as poor stability in aqueous environments strongly limit their use. Inorganic nanoparticles are emerging as a powerful interface for the development of robust HA bio-hybrid materials with enhanced chemical stability and tunable properties. Hybrid organic-inorganic SiO 2 /HA nanostructures were synthesized via an in-situ sol-gel route, exploiting both physical entrapment and chemical coupling. The latter was achieved through amide bond formation between carboxyl groups of HA and the amino group of 3-aminopropyltriethoxysilane (APTS), as confirmed by Fourier-Transform Infrared (FTIR) and Nuclear Magnetic Resonance (NMR) spectroscopy. Monodisperse hybrid nanoparticles about 90 nm in diameter were obtained in both cases, yet Electron Paramagnetic Resonance (EPR) spectroscopy highlighted the different supramolecular organization of HA. The altered HA conformation was reflected in different antioxidant properties of the conjugated nanoparticles that, however, resulted in being higher than for pure HA. Our findings proved the key role of both components in defining the morphology of the final system, as well as the efficacy of the ceramic component in templating the HA supramolecular organization and consequently tuning their functional features, thus defining a green strategy for bio-waste valorization.

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“…Root growth promotion by production of auxins or other signal compounds, down‐regulation of excessive stress‐induced ethylene production by ACC deaminase, soil pH reduction by release of protons, organic and mineral acids as well as increased P mineralization or enhanced recruitment of other beneficial microbes are discussed as potential modes of action of PGPM‐assisted P acquisition (Illmer and Schinner 1995; Mardad et al 2013; Sharma et al 2013; Kröber et al 2014; Thonar et al 2017). However, recent findings suggest that the efficiency of PGPM‐assisted fertilization strategies also depends on combination with suitable fertilizers (Abbasi et al 2015; Nkebiwe et al 2016b; Thonar et al 2017; Mpanga et al 2018; Vinci et al 2018a,b; Bradáčová et al 2019). Own preliminary work indicates preferential performance of many PGPMs in combination with ammonium instead of nitrate‐based fertilizers.…”

Section: Introductionmentioning

confidence: 99%

“…In this study, Bacillus amyloliquefaciens FZB42 characterized as one of the most efficient PGPMs in the previous reports (Mpanga et al 2018, 2019; Vinci et al 2018a) with abilities to solubilize organic and inorganic P (Nkebiwe et al 2017) and root growth‐promoting and stress‐protective properties (Borris 2015; Mpanga et al 2018, 2019) was selected as a representative PGPM strain. Maize was used as a model plant with a low inherent capacity for root‐induced P solubilization (Gaume et al 2000; Liu et al 2016).…”

Section: Introductionmentioning

confidence: 99%

Acquisition of rock phosphate by combined application of ammonium fertilizers and Bacillus amyloliquefaciens FZB42 in maize as affected by soil pH

Mpanga

Ludewig

Dapaah

et al. 2020

J. Appl. Microbiol.

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Aims The use of plant growth‐promoting micro‐organisms (PGPMs) to improve plant‐nutrient acquisition has a long history but reproducibility remains a challenge. Recent findings suggest an important role of suitable inoculant‐fertilizer combinations for the expression of PGPM‐effects, particularly with respect to nitrogen (N) supply. In face of the well‐documented N form effects on rhizosphere pH, this study addressed the impact of ammonium‐assisted PGPM‐interactions on the acquisition of sparingly soluble calcium‐phosphates as affected by soil pH. Methods and Results The effects of stabilized ammonium fertilization combined with the PGPM inoculant Bacillus amyloliquefaciens FZB42 on the acquisition of rock phosphate in maize were examined on two soils (moderately acidic‐pH 5·6 and alkaline‐pH 7·8). On the two contrasting soils, FZB42 improved the P status and promoted plant growth by different mechanisms. On the acidic soil, a combination of ammonium‐fertilization with FZB42 increased P‐acquisition by Rock P solubilization via rhizosphere acidification but P‐supply in the noninoculated control was already sufficient to meet the plant demands. By contrast, on the alkaline soil, plant growth‐promotion was associated with FZB42‐induced root growth stimulation. Conclusion The results suggest a significant impact of soil pH on performance and the mode of action of PGPM inoculants, to be considered for practical applications. Significance and Impact of the Study The study advanced existing knowledge on PGPM‐assisted P solubilization as affected by different soil properties. The results suggest perspectives for management options to be considered for efficient use of PGPMs in terms of selecting application strategies with compatible PGPM‐fertilizer combinations, depending on soil pH conditions.

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Effects of Bacillus amyloliquefaciens and different phosphorus sources on Maize plants as revealed by NMR and GC-MS based metabolomics

Cited by 49 publications

References 49 publications

Bacillusspecies in soil as a natural resource for plant health and nutrition

Bacillusspecies in soil as a natural resource for plant health and nutrition

Tuning Functional Behavior of Humic Acids through Interactions with Stöber Silica Nanoparticles

Acquisition of rock phosphate by combined application of ammonium fertilizers and Bacillus amyloliquefaciens FZB42 in maize as affected by soil pH

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