Bacterial Mixtures, the Future Generation of Inoculants for Sustainable Crop Production

Morales-García, Yolanda Elizabeth; Baez, Antonino; Quintero-Hernández, Verónica; Molina-Romero, Dalia; Rivera-Urbalejo, América Paulina; Pazos-Rojas, Laura Abisaí; Muñoz‐Rojas, Jesús

doi:10.1007/978-3-030-30926-8_2

Cited by 12 publications

(11 citation statements)

References 155 publications

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“…This will be particularly felt in coastal regions, with the temperature rise, expanding drought seasons, intensification of storm surges, sea-level rise, and coupled with the XXI century intensive agricultural practices it can be presumed that water and soil salinization is a major problem and one of the most impacting plant's abiotic stressors [30]. Plant growth-promoting bacteria (PGPR) has been widely recognized to be a great tool for the augmentation of crop productivity and the improvement of the plant's stress coping ability [31,32]. On the other hand, very little attention has been given to the enhancement of the innate tolerances found in the halophytes.…”

Section: Discussionmentioning

confidence: 99%

Bioaugmentation Improves Phytoprotection in <em>Halimione Portulacoides </em>Exposed to Mild Salt Stress: Perspectives for Salinized Soil Restoration

Carreiras¹,

Caçador²,

Duarte³

2022

Preprint

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Rhizosphere bacteria have a decisive influence on plant ionic adjustment, as well as in ameliorating plant growth under an array of stress situations. Plant growth-promoting rhizobacteria (PGPR) colonize the rhizosphere of plants and promote plant growth through mechanisms such as solubilization of mineral phosphates, biological N2 fixation, production of siderophores and phytohormones, and can induce systemic resistance in the plant. This can be of extreme importance when considering the restoration of salinized grounds by halophytic species. This present work aims to evaluate the physiological fitness and phytoprotection improvement by salt marsh PGPR in Halimione portulacoides under mild and severe salt stress. Plants inoculated with PGPR-consortium showed higher photochemical performances, improved antioxidant response, and promotion of osmotic balance traits, that boosted the individual’s ability to cope with mild salt stress. All these changes are also in line with the differential elemental profiles (Na, K, and Ca) observed in the different plant tissues. Even under severe salt stress, some physiological traits were improved when compared to the non-inoculated individuals. The results developed under this work, point out an important role of bioaugmentation in promoting plant fitness and improving salt tolerance, with a great potential for applications in seawater agriculture, restoration, and bio-reclamation of salinized soils.

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Section: Discussionmentioning

confidence: 99%

Bioaugmentation Improves Phytoprotection in <em>Halimione Portulacoides </em>Exposed to Mild Salt Stress: Perspectives for Salinized Soil Restoration

Carreiras¹,

Caçador²,

Duarte³

2022

Preprint

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“…More work is required to define the role of bacterial mixtures on plant inoculation under field conditions. However, the eco-friendly technologies for increasing crop yields are promising (Morales-García et al, 2019).…”

Section: Discussionmentioning

confidence: 99%

A Bacterial Consortium Interacts With Different Varieties of Maize, Promotes the Plant Growth, and Reduces the Application of Chemical Fertilizer Under Field Conditions

Molina-Romero

Juárez-Sánchez

Venegas

et al. 2021

Front. Sustain. Food Syst.

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The success of beneficial bacteria in improving the crop growth and yield depends on an adequate plant-bacteria interaction. In this work, the capability of Azospirillium brasilense Sp7, Pseudomonas putida KT2440, Acinetobacter sp. EMM02, and Sphingomonas sp. OF178A to interact with six maize varieties was evaluated by both single-bacterium application and consortium application. The bacterial consortium efficiently colonized the rhizosphere of the autochthonous yellow and H48 hybrid varieties. Bacterial colonization by the consortium was higher than under single-bacterium colonization. The two maize varieties assayed under greenhouse conditions showed increased plant growth compared to the control. The effect of consortium inoculation plus 50% fertilization was compared with the 100% nitrogen fertilization under field conditions using the autochthonous yellow maize. Inoculation with the consortium plus 50% urea produced a similar grain yield compared to 100% urea fertilization. However, a biomass decrease was observed in plants inoculated with the consortium plus 50% urea compared to the other treatments. Furthermore, the safety of these bacteria was evaluated in a rat model after oral administration. Animals did not present any negative effects, after bacterial administration. In conclusion, the bacterial consortium offers a safety alternative that can reduce chemical fertilization by half while producing the same crop yield obtained with 100% fertilization. Decreased chemical fertilization could avoid contamination and reduce the cost in agricultural practices.

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“…Research on leveraging the benefits of combining plant growth-promoting bacteria with Trichoderma species is growing rapidly (Morales-Garcia et al 2019 ; Table 1 ). These works focus on several crops including chickpea (Velmourougane et al 2017 ), bean (Negi et al 2019 ), wheat and maize (Karuppiah et al 2019a , b ; El-Katatny and Idres 2014 ), as well as tomato (Tomer et al 2015 ) among other important agricultural plants (Poveda and Eugui 2022 ).…”

Section: Multicomponent Inoculants Containing Trichodermamentioning

confidence: 99%

Recent advances in the use of Trichoderma-containing multicomponent microbial inoculants for pathogen control and plant growth promotion

Kredics,

Büchner,

Balázs

et al. 2024

World J Microbiol Biotechnol

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Chemical pesticides and fertilizers are used in agricultural production worldwide to prevent damage from plant pathogenic microorganisms, insects, and nematodes, to minimize crop losses and to preserve crop quality. However, the use of chemical pesticides and fertilizers can severely pollute soil, water, and air, posing risks to the environment and human health. Consequently, developing new, alternative, environment-friendly microbial soil treatment interventions for plant protection and crop yield increase has become indispensable. Members of the filamentous fungal genus Trichoderma (Ascomycota, Sordariomycetes, Hypocreales) have long been known as efficient antagonists of plant pathogenic microorganisms based on various beneficial traits and abilities of these fungi. This minireview aims to discuss the advances in the field of Trichoderma-containing multicomponent microbiological inoculants based on recent experimental updates. Trichoderma strains can be combined with each other, with other fungi and/or with beneficial bacteria. The development and field performance of such inoculants will be addressed, focusing on the complementarity, synergy, and compatibility of their microbial components.

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Bacterial Mixtures, the Future Generation of Inoculants for Sustainable Crop Production

Cited by 12 publications

References 155 publications

Bioaugmentation Improves Phytoprotection in <em>Halimione Portulacoides </em>Exposed to Mild Salt Stress: Perspectives for Salinized Soil Restoration

Bioaugmentation Improves Phytoprotection in <em>Halimione Portulacoides </em>Exposed to Mild Salt Stress: Perspectives for Salinized Soil Restoration

A Bacterial Consortium Interacts With Different Varieties of Maize, Promotes the Plant Growth, and Reduces the Application of Chemical Fertilizer Under Field Conditions

Recent advances in the use of Trichoderma-containing multicomponent microbial inoculants for pathogen control and plant growth promotion

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