Azospirillum as Biofertilizer for Sustainable Agriculture: Azospirillum brasilense AZ39 as a Model of PGPR and Field Traceability

Coniglio, Anahí; Mora, Verónica; Puente, Mariana; Cassán, Fabricio

doi:10.1007/978-3-030-17597-9_4

Cited by 29 publications

(15 citation statements)

References 108 publications

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“…A particularly important vegetable is the tomato; in this spring-summer season, Mexico has increased the export of tomatoes by an additional 15% compared with 2019 and monopolized 24.1% of world trade only in the last eight months of 2020 [40]. With the purpose of emphatically capitalizing on the current global demand for tomato and considering the request of tomato farmers in the Comarca Lagunera region to evaluate Azospirillum brasilense and manure produced by dairy herds, under the methodological conditions that the study proposed, our obtained results confirm those pronounced in [41], together with several others [42][43][44][45], which stated that plant growth-promoting bacteria (PGPB) such as Azospirillum have effects on other plants than the originally intended cereals. This study strongly supports the idea that Azospirillum should be considered a non-specific and generally beneficial bacteria.…”

Section: Discussionsupporting

confidence: 75%

Azospirillum brasilense and Solarized Manure on the Production and Phytochemical Quality of Tomato Fruits (Solanum lycopersicum L.)

et al. 2020

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Tomato is a vegetable crop with probiotic interest. Currently subject to a global biosecurity emergency due to the epidemic caused by COVID-19, humanity is seeking to maintain its health and become stronger by eating vegetables that have probiotic properties. Considering the request of tomato farmers in the Comarca Lagunera (CL) region, the objective of this work consisted of determining the impact of bioinoculation with Azospirillum brasilense (Ab) and solarized manure (M) on the yield and phytochemical quality of tomato fruits produced in shade mesh. Seeds of the saladette variety TOP 2299 were inoculated with Ab at 1 × 108 CFU.mL. Before 46 days after being sowed, seedlings were transplanted in soil enriched with manure solarized at a rate of 0, 40, 80, 120 and 160 t ha−1; a chemical fertilization (CHF) treatment was also adopted (366-95-635). Emergence, growth, root length, bromatological studies (protein and lipids in plant), yield and organoleptic (Vit C, phenols, flavonoids and lycopene) variables were considered. The results show that biofertilization based on Ab + M40 can be an alternative to produce tomato in shade-house conditions in the CL compared with non-inoculated and CHF treatments.

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Section: Discussionsupporting

confidence: 75%

Azospirillum brasilense and Solarized Manure on the Production and Phytochemical Quality of Tomato Fruits (Solanum lycopersicum L.)

et al. 2020

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“…The inoculation of these bacteria usually occurs via spraying (SCHULTZ et al, 2014;CONIGLIO et al, 2019), an option to reduce application costs and damage to the culture would be their application via fertigation, however, there are few studies on the survival of these organisms and the alterations that they can cause in the vinasse. Thus, the objective was to evaluate the use of vinasse as a culture medium for the bacteria A. brasilense and the chemical changes caused in the residue after bacterial colonization.…”

Section: Introductionmentioning

confidence: 99%

Cultivation of Azospirillum brasilense in Vinasse and Potential Use in Fertigation

Silva

Gasparotto

Lustri

et al. 2020

JAS

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Vinasse, residue from the sugar-energy sector, has been applied as a fertilizer in sugarcane fields due to its nutritional characteristics, which may reduce nitrogen fertilization, especially if associated with diazotrophic bacteria. The objective was to evaluate the use of vinasse as culture medium for Azospirillum brasilense and the chemical changes caused in the residue after bacterial colonization. The experimental design was completely randomized with 9 treatments: T0-control (nutrient broth DYGs inoculated with A. brasilense); T1- 100% vinasse inoculated with A. brasilense; T2- 75% vinasse inoculated with A. brasilense; T3- 25% vinasse inoculated with A. brasilense; T4- 50% vinasse inoculated with A. brasilense; T5- 100% vinasse; T6- 75% vinasse; T7- 25% vinasse and T8- 50% vinasse. Microbial growth was evaluated in a spectrophotometer, by turbidimetry (700nm). Chemical characterization of vinasse was carried out before bacterial inoculation and on days 1, 3, 5 and 7 after inoculation according to the methodologies of the Standard Methods for the Examination of Water and Wastewater 22 ND for the elements nitrogen (4500-Norg), phosphorus (4500-P), potassium (3030-A) and calcium (3500 Ca-B). The determination of organic matter was carried out in accordance with the technical standard NBR 13600. The bacteria A. brasilense survived and multiplied in sugarcane vinasse, causing changes such as the increase in the levels of phosphorus and nitrogen and the reduction of the organic load, mainly in pure vinasse (100%), indicating that the viability of this practice for the application of these organisms in the culture of sugar cane via fertigation.

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“…El género Azospirillum está constituido por bacterias mutualistas no específicas capaces de habitar en la rizósfera de muchas especies vegetales. Promueven el crecimiento de las plantas por una sinergia de mecanismos tales como la producción de fitohormonas, la fijación de N, y la producción de sideróforos y de óxido nítrico (Cassán y García de Salamone, 2008; Bashan y de- Bashan, 2010;Lana et al, 2012;Mehnaz, 2015;Cassán y Díaz-Zorita, 2016;Coniglio, Mora, Puente y Cassán, 2019).…”

Section: Introductionunclassified

Modificaciones en el crecimiento temprano de trigo (Triticum aestivum L.) en presencia de Azospirillum brasilense y de Pseudomonas psychrophila

Palmero

Hang

Bigatton

et al. 2020

AgriS

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Azospirillum spp. y Pseudomonas spp. son rizobacterias promotoras del crecimiento vegetal que mejoran el crecimiento y la productividad de los cultivos. El objetivo de este trabajo fue comparar los efectos de Azospirillum brasilense y de Pseudomonas psychrophila sobre el crecimiento inicial de trigo según condiciones contrastantes de fertilidad. El estudio se realizó en condiciones controladas de crecimiento combinando la inoculación con la fertilización con P y K en un sustrato estéril. Se evaluó el largo de raíces a los 10 días después de la siembra (DDS) y la acumulación de biomasa aérea y radicular a los 10 y a los 40 DDS. A los 10 DDS los tratamientos inoculados presentaron en promedio un aumento del 8 % en el largo de las radículas, mientras que la biomasa total aumentó 6,3 % al inocular con A. brasilense y 4,9 % al inocular con P. psychrophila. A los 40 DDS, ambas rizobacterias aumentaron el crecimiento de las raíces en 21 %. En ambos momentos de evaluación, la acumulación de biomasa fue independiente de la fertilidad del sustrato, lo que sugiere que la presencia de A. brasilense y de P. psychrophila fue relevante durante la implantación y el crecimiento inicial del cultivo.

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Azospirillum as Biofertilizer for Sustainable Agriculture: Azospirillum brasilense AZ39 as a Model of PGPR and Field Traceability

Cited by 29 publications

References 108 publications

Azospirillum brasilense and Solarized Manure on the Production and Phytochemical Quality of Tomato Fruits (Solanum lycopersicum L.)

Azospirillum brasilense and Solarized Manure on the Production and Phytochemical Quality of Tomato Fruits (Solanum lycopersicum L.)

Cultivation of Azospirillum brasilense in Vinasse and Potential Use in Fertigation

Modificaciones en el crecimiento temprano de trigo (Triticum aestivum L.) en presencia de Azospirillum brasilense y de Pseudomonas psychrophila

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