Effect of &amp;lt;i&amp;gt;Pseudomonas fluorescens&amp;lt;/i&amp;gt; and &amp;lt;i&amp;gt;Burkholderia pyrrocinia&amp;lt;/i&amp;gt; on the Growth Improvement and Physiological Responses in &amp;lt;i&amp;gt;Brachiaria brizantha&amp;lt;/i&amp;gt;

Lopes, Monyck Jeane dos Santos; Filho, M. B. Dias; Castro, Thomaz Henrique dos Reis; Filippi, Marta Cristina Corsi de; Silva, Gisele Barata da

doi:10.4236/ajps.2018.92021

Cited by 13 publications

(13 citation statements)

References 30 publications

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“…A previous study has shown that co-inoculation of Pseudomonas fluorescens and Burkolderia pyrrocinia promotes growth in Brachiaria brizantha (Lopes et al, 2018). Our hypothesis is that these rhizobacteria are a promising microbial biotechnology, able to be used as biofertilizer, to affect anatomical and biochemistry characteristics of a tropical forage grass, that stimulate improvements in nutritional value and biomass production, being an alternative chemical fertilizer.…”

Section: Introductionmentioning

confidence: 86%

“…The bacterial isolates were cultured in solid 523 medium (Kado et al, 1970) for 48h at 28∘C. The bacterial suspension was prepared in water and adjusted to A540 = 0.2 (10 8 CFU) (Lopes et al, 2018).…”

Section: Experimental Design and Bacterial Strainmentioning

confidence: 99%

“…Fertilized-control plants were fertilized with 5 mg dm -3 of N, 14 mg dm -3 of P2O5, and 10 mg dm -3 of K2O. Suspension of bacterial isolates (5 mL, 10 8 CFU), water drenched the trial soil at 14 days after seedling emergence (DASE) (Lopes et al,2018). The experiment was conducted with photosynthetically active radiation of 900 μmol m -2 s -1 , mean air temperature of 30°C and relative humidity of 74%.…”

Section: Plant Growth Conditionsmentioning

confidence: 99%

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Impacts of Plant Growth-Promoting Rhizobacteria on Tropical Forage Grass in Brazil

Lopes

Dias‐Filho

Castro³

et al. 2020

JAS

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The aim of this study was to evaluate the effects of plant growth-promoting rhizobacteria effects on anatomical characteristics and nutritional value of Brachiaria (Syn. Urochloa) brizantha cv. BRS Piatã. The experimental design applied was completely randomized design with three treatments: (1) non-inoculated unfertilized-control plants (C-), (2) non-inoculated fertilized-control plants (C+) and (3) B. brizantha inoculated with Pseudomonas fluorescens (BRM-32111) and Burkholderia pyrrocinia (BRM-32113). The following parameters were evaluated at 35 days after seedling emergence: biomass production, plant height, net photosynthesis (A), water-use efficiency (WUE), chlorophyll (SPAD), anatomical and nutritional. The rhizobacteria modified the anatomy of the leaf, culm and roots of B. brizantha. They also increased the chlorophyll content, A, WUE, total soluble carbohydrates, starch and crude protein contents, N, P, Mg and Fe concentrations, plant height, root area and biomass production. Therefore, we conclude that co-inoculation with P. fluorescens (BRM-32111) and B. pyrrocinia (BRM-32113) modified the anatomy and biochemistry of B. brizantha, promoting growth and nutrient accumulation. Therefore, these findings set up the basis for additional exploratory studies, using these rhizobacteria as biotechnological innovation with potential of use as biofertilizer in B. brizantha, aiming higher productivity and nutritive value in a more eco-friendly and sustainable pasture production system.

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Section: Introductionmentioning

confidence: 86%

Section: Experimental Design and Bacterial Strainmentioning

confidence: 99%

Section: Plant Growth Conditionsmentioning

confidence: 99%

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Impacts of Plant Growth-Promoting Rhizobacteria on Tropical Forage Grass in Brazil

Lopes

Dias‐Filho

Castro³

et al. 2020

JAS

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“…In co-inoculation, microorganisms interact synergistically, increasing the efficiency of inoculation, resulting in improved plant development. Lopes et al (2018a) in an assay comparing individual inoculation and co-inoculation of Pseudomona fluorences and Burkholderia pyrrocinea, found that these rhizobacteria when co-inoculated, stimulated root development, and increased growth and productivity of the tropical forage grass Brachiaria brizantha. Co-inoculation of PGPM also increased growth and quality in Triticum spp.…”

Section: Inoculation Methods For the Success Of Plant Growth-promotinmentioning

confidence: 99%

Successful Plant Growth-Promoting Microbes: Inoculation Methods and Abiotic Factors

Lopes

Dias‐Filho

Gurgel

2021

Front. Sustain. Food Syst.

159

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Plant-microbe interactions have been the subject of several biotechnological studies, seeking sustainable development and environmental conservation. The inoculation of plant growth-promoting microbes (PGPM) in agricultural crops is considered an environmental-friendly alternative to chemical fertilization. Microbial inoculants are mainly inoculated onto seeds, roots and soil. PGPM improve plant growth by enhancing the availability of nutrients, the regulation of phytohormones, and by increasing plant tolerance against biotic and abiotic stresses. One of the main obstacles with PGPM research are the inconsistent results, which may be the result of inoculation methods and abiotic factors, such as soil (nutrient or heavy metal contents and pH), water availability, light intensity and temperature. This review addresses how the PGPM inoculants act on plant growth, what mechanisms they use to survive under stressful environmental conditions, and how inoculation methods and abiotic factors can interfere on the success of microbial inoculation in plants, serving as a basis for research on plants-microorganisms interaction.

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“…Nowadays, it is possible to find studies that present the positive effects of inoculation in grasses, such as the increment of forage mass and the reduction in the need for the support of N-fertilizer in pastures of Urochloa sp. (Hungria et al, 2016;Leite et al, 2018;Lopes et al, 2018;Duarte et al, 2020) and Cynodon sp. (Aguirre et al, 2018).…”

Section: Introductionmentioning

confidence: 99%

Forage Mass, Tillering, Nutritive Value and Root System of Ruzigrass Inoculated with Plant Growth Promoting Bacteria Associated with Doses of N-Fertilizer

Barreiros

Cecato

Duarte

et al. 2020

Int J Innov Educ Res

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The aim of this study was evaluating the effect of the inoculation of plant growth promoting bacteria (PGPB) in forage mass, tillering, nutritive value and root system of ruzigrass (Urochloa ruziziensis (R. Germ. & Evrard) Crins (syn. of Brachiaria ruziziensis) associated with doses of N-fertilizer. The bacteria inoculated were Azospirillum brasilense Ab-V5, Pseudomonas fluorescens CCTB03 and Pantoea ananatis AMG 521, plus the control treatment (non-inoculated), associated with doses of N-fertilizer (0, 50 and 100 kg N ha-1). The experiment was performed in a randomized block design, in a 4x3 factorial scheme, with four replicates, totaling 48 plots (12 m2). There were no effects of the PGPB and the use of N-fertilizer on the leaf blade, stem+sheath, forage mass, daily and yearly accumulation of forage mass. The PGPB did not have influence on the density of tillers. The doses of 50 and 100 kg of N ha-1 increased the amount of tillers. The AMG 521 strain associated with N-fertilizer provided heavier tillers. There was no effect of the PGPB on crude protein (CP), neutral detergent fiber (NDF), as well as acid detergent fiber (ADF), and in vitro digestibility of the dry matter (IVDDM). The use of 100 kg of N ha-1 contributed to an increase in CP and a decrease in NDF. The AMG 521 strain contributed to a smaller diameter of the root. Strains CCTB03 and AMG 521 demonstrated a smaller area, length and root density when associated with the dose of 50kg of N ha-1. In general, the PGPB were not efficient in promoting productive increments in ruzigrass.

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Effect of <i>Pseudomonas fluorescens</i> and <i>Burkholderia pyrrocinia</i> on the Growth Improvement and Physiological Responses in <i>Brachiaria brizantha</i>

Cited by 13 publications

References 30 publications

Impacts of Plant Growth-Promoting Rhizobacteria on Tropical Forage Grass in Brazil

Impacts of Plant Growth-Promoting Rhizobacteria on Tropical Forage Grass in Brazil

Successful Plant Growth-Promoting Microbes: Inoculation Methods and Abiotic Factors

Forage Mass, Tillering, Nutritive Value and Root System of Ruzigrass Inoculated with Plant Growth Promoting Bacteria Associated with Doses of N-Fertilizer

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