Streptomyces spp. Biofilmed Solid Inoculant Improves Microbial Survival and Plant-Growth Efficiency of Triticum aestivum

Dominguez-Gonzalez, Karla Gabriela; Robledo-Medrano, J. Jesús; Valdéz-Alarcón, Juan José; Hernández-Cristóbal, Orlando; Martínez-Flores, Héctor Eduardo; Cerna-Cortés, Jorge F.; Garnica-Romo, Ma. Guadalupe; Cortés-Martínez, Raúl

doi:10.3390/app122211425

Cited by 6 publications

(5 citation statements)

References 69 publications

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“…or both on the roots of cultivated tomato (Solanum lycopersicum L. cv Trust). Domínguez-González [65] inoculated Triticum aestivum with a biofilm of Streptomyces spp. induced on a perlite carrier, while Gorodylova [66] used a microbial consortium biofilm grown on Fe-modified zeolite grains for the treatment of contaminated soils.…”

Section: Discussionmentioning

confidence: 99%

Inoculation with Biofilm of Bacillus subtilis Promotes the Growth of Lactuca sativa

Sarti,

Galelli,

Arreghini

et al. 2023

Sustainability

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In Argentina, the excessive use of fertilizers is common in intensively cultivated zones around highly populated areas. Bioinoculants based on plant growth promoting rhizobacteria (PGPR) could be effective for crop production improvement without negative effects on the environment. The objective of this work was to evaluate an alternative inoculation method, namely the application of the biofilm produced by Bacillus subtilis as a growth promoter on seeds of three varieties of Lactuca sativa, and to compare it with the common planktonic approach. Biofilm was obtained under static culture conditions, while planktonic inoculum was produced at 150 rpm. The major biofilm effects were observed with Bacillus subtilis subsp. spizizenii, that showed antifungal activity against phytopathogens, synthesized plant growth regulators (IAA, cytokinin and ABA) and solubilized phosphates. The Grand Rapid variety inoculated with biofilm showed the best results, with 30% and 37% higher aerial and root biomass, respectively, compared to the planktonic form. Moreover, the biofilm positive effects were observed through successive plant development stages until harvest, when the bacterium was recovered from the interior of the roots. The biofilm of B. subtilis subsp. spizizenii behave as a superior growth-promoting inoculant compared to the traditional planktonic inoculation technique.

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Section: Discussionmentioning

confidence: 99%

Inoculation with Biofilm of Bacillus subtilis Promotes the Growth of Lactuca sativa

Sarti,

Galelli,

Arreghini

et al. 2023

Sustainability

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“…For example, earlier biofilms from Bacillus sp., Pseudomonas sp. or a mixture of both strains have been inoculated on tomato [76], and a biofilm from Streptomyces supplied with perlite has also been applied to Triticum aestivum [77]; in either case, the bacteria was not able to fulfill their positive effects from the very beginning of seed germination.…”

Section: Discussionmentioning

confidence: 99%

Inoculation with Biofilm of Bacillus subtilis Is a Safe and Sustainable Alternative to Promote Tomato (Solanum lycopersicum) Growth

Sarti,

Galelli,

Cristóbal-Miguez

et al. 2024

Environments

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Over-fertilization and agrochemicals adversely affect soil quality and agricultural ecosystem sustainability. Tomato (Solanum lycopersicum) is ranked as an important crop due to its high profitability and nutritional value. In Argentina, tomato is mainly produced in horticultural belts at peri-urban areas, whose soils frequently are contaminated by heavy metals and/or agrochemicals. To explore safer alternatives, we investigated the effects of seed inoculation with a common plant-growth-promoting rhizobacteria (PGPR), i.e., Bacillus subtilis subsp. spizizenii, on development at various growth stages of two tomato varieties, “Platense” and “Río Grande”, and on production and fruit quality at harvest time of the “Río Grande” variety. The experimental design consisted of three treatments per variety: a control versus traditional planktonic or biofilm inoculation, with three replicates per treatment. Germination at 10 days and seedling agronomical parameters showed that the response to seed inoculation was superior in the “Río Grande” variety. At harvest time, and irrespective of the inoculant, several agronomical parameters of the “Río Grande” variety were significantly enhanced with respect to the control. The biofilm significantly increased tomato production, as quantified by fruit number and weight, compared to the planktonic inoculum. This case study demonstrates that the incorporation of bio-inoculants is relevant in sustainable agriculture to promote crop growth and quality.

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“…Streptomyces, which can establish colonies in the rhizosphere or plant tissue, has been observed to maintain a symbiotic relationship with plants that enhances their growth [233] . A recent study done by Domínguez-González and his collaborators [260] suggests the use of Streptomyces spp as a biofertilizer in a biofilm form that uses perlite mineral as a carrier. This approach is recommended as an alternative to enhance crop production over an extended period and to improve plant health owing to its advantages.…”

Section: Streptomyces As Biofertilizermentioning

confidence: 99%

Streptomyces at the Heart of Several Sectors to Support Practical and Sustainable Applications: A Review

Beroigui,

Errachidi

2023

Prog Micobes Mol Biol

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This article emphasizes the various contributions of actinobacteria to the well-being of human life on our planet. Agrarian virtues begin with the substitution of chemical fertilizers with bio-fertilizing microorganisms which have a versatile potential for the benefit of soil and plants by playing complementary and interconnected roles. Thus, these microorganisms improve soil health through bioremediation phenomena and the elimination of several non-beneficial microorganisms. In agriculture, these microorganisms can be added to compost as inoculants to speed up the composting process and provide an additional source of beneficial microorganisms for the compost-treated soil. Streptomyces and other actinobacteria can also be used as biotechnological sources of herbicides and insecticides. In the medical and therapeutic sectors, this paper emphasizes the potential of actinobacteria, in particular Streptomyces species, in the production of antibiotics, antioxidant, and anticancer agents, opening up avenues for the creation of molecules with high benefits. In biotechnology, these totipotent microorganisms produce enzymes widely used in several industries, generating considerable revenue. Sporadic data accumulated on these types of microorganisms opens up many new avenues for exploiting these natural biocatalytic resources. Papers published in the last decade have exploded the amount of information that can be put to practical use. To maximize the value of these microorganisms, it would be advisable to create common threads between the themes that bring together the areas of expertise where these microorganisms could potentially be exploited. This bibliographical synthesis is a contribution to the development of a targeted database.

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Streptomyces spp. Biofilmed Solid Inoculant Improves Microbial Survival and Plant-Growth Efficiency of Triticum aestivum

Cited by 6 publications

References 69 publications

Inoculation with Biofilm of Bacillus subtilis Promotes the Growth of Lactuca sativa

Inoculation with Biofilm of Bacillus subtilis Promotes the Growth of Lactuca sativa

Inoculation with Biofilm of Bacillus subtilis Is a Safe and Sustainable Alternative to Promote Tomato (Solanum lycopersicum) Growth

Streptomyces at the Heart of Several Sectors to Support Practical and Sustainable Applications: A Review

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