The present work aimed to study suitability of a consortium of Azospirillum brasilense, Gluconacetobacter diazotrophicus, Herbaspirillum seropedicae, and Burkholderia ambifaria as biofertilizers. Strains were assayed for plant growth-promoting characteristics (i.e., auxins production, phosphate solubilizing capability, and 1-aminocyclopropane-1-carboxylate deaminase activity). The consortium of four bacteria was then inoculated on carrot seeds and tested in an open field experiment. During the open field experiment, plant growth (morphological parameters, chlorophylls, and carotenoids), soil chemical analysis, and molecular and physiological profiles of soils were investigated. Each strain produced different amounts of indole-3acetic acid and several indole-derivates molecules. All strains showed phosphate solubilization capability, while 1-aminocyclopropane-1-carboxylate deaminase activity was only detected in H. seropedicae and B. ambifaria. The bacterial consortium of the four strains gave interesting results in the open field cultivation of carrot. Plant development was positively affected by the presence of the consortium, as was soil fertility and microbial community structure and diversity. The present work allowed for deepening our knowledge on four bacteria, already known for years for having several interesting characteristics, but whose interactions were almost unknown, particularly in view of their use as a consortium in a valid fertilization strategy, in substitution of agrochemicals for a sustainable agriculture

Pellegrini, M., Pagnani, G., Rossi, M., D'Egidio, S., Del Gallo, M., Forni, C. (2021). Daucus carota L. seed inoculation with a consortium of bacteria improves plant growth and soil fertility status and microbial community. APPLIED SCIENCES, 11, 3274.

Daucus carota L. seed inoculation with a consortium of bacteria improves plant growth and soil fertility status and microbial community.

Forni C.
2021-04-06

Abstract

The present work aimed to study suitability of a consortium of Azospirillum brasilense, Gluconacetobacter diazotrophicus, Herbaspirillum seropedicae, and Burkholderia ambifaria as biofertilizers. Strains were assayed for plant growth-promoting characteristics (i.e., auxins production, phosphate solubilizing capability, and 1-aminocyclopropane-1-carboxylate deaminase activity). The consortium of four bacteria was then inoculated on carrot seeds and tested in an open field experiment. During the open field experiment, plant growth (morphological parameters, chlorophylls, and carotenoids), soil chemical analysis, and molecular and physiological profiles of soils were investigated. Each strain produced different amounts of indole-3acetic acid and several indole-derivates molecules. All strains showed phosphate solubilization capability, while 1-aminocyclopropane-1-carboxylate deaminase activity was only detected in H. seropedicae and B. ambifaria. The bacterial consortium of the four strains gave interesting results in the open field cultivation of carrot. Plant development was positively affected by the presence of the consortium, as was soil fertility and microbial community structure and diversity. The present work allowed for deepening our knowledge on four bacteria, already known for years for having several interesting characteristics, but whose interactions were almost unknown, particularly in view of their use as a consortium in a valid fertilization strategy, in substitution of agrochemicals for a sustainable agriculture
6-apr-2021
Pubblicato
Rilevanza internazionale
Articolo
Esperti anonimi
Settore BIO/01 - BOTANICA GENERALE
English
Con Impact Factor ISI
Azospirillum brasilense; Gluconacetobacter diazotrophicus; Herbaspirillum seropedicae; Burkholderia ambifaria; Daucus carota; microbial inoculation; soil biodiversity; auxins; phosphate solubilization; 1-aminocyclopropane-1-carboxylate deaminase activity
Pellegrini, M., Pagnani, G., Rossi, M., D'Egidio, S., Del Gallo, M., Forni, C. (2021). Daucus carota L. seed inoculation with a consortium of bacteria improves plant growth and soil fertility status and microbial community. APPLIED SCIENCES, 11, 3274.
Pellegrini, M; Pagnani, G; Rossi, M; D'Egidio, S; Del Gallo, M; Forni, C
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2108/302687
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