A Little Helper: Beneficial Bacteria with Growth-Promoting Mechanisms Can Reduce Asian Soybean Rust Severity in a Cell-Free Formulation

Buttrós, Victor Hugo Teixeira; Araújo, Neilton Antonio Fiusa; D'Ávila, Vinicius de Abreu; Pereira, Maysa Mathias Alves; Melo, Dirceu de Sousa; Pasqual, Moacir; Soares, Joyce Dória Rodrigues

doi:10.3390/agronomy12112635

Cited by 2 publications

(2 citation statements)

References 66 publications

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“…Soybean plant growth promotion mechanisms were observed in bacteria cells, as well as the role of bacterial metabolites, especially lipopeptides, in the biological control of diseases and the modulation of the plant's immune response. The treatments containing only bacterial cells were not efficient in reducing Asian rust severity, with losses of leaf area reaching 15%, while the addition of biosurfactants led to a result that was similar to the biofungicide, based on B. subtilis (Serenade ® ) [149].…”

Section: Adjuvants For Seed Germination and Plant Growthmentioning

confidence: 96%

Biosurfactants: Promising Biomolecules for Agricultural Applications

Silva,

Medeiros,

Converti

et al. 2024

Sustainability

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Population growth and the need for increased agricultural productivity pose a global problem. Therefore, the development of green compounds to ensure agricultural sustainability is an urgent necessity. Surfactant compounds hold significant commercial importance due to their diverse industrial uses. However, the synthetic origin of these agents limits their commercial application due to their toxicity. As a result, extensive research has focused on the production of microbial-originated green surfactants, known as biosurfactants, over the past fifteen years. These biomolecules not only offer a green alternative for agriculture but also exhibit reduced toxicity and excellent stability under specific environmental conditions. Biosurfactants can lower surface tension more effectively than synthetic surfactants. With properties such as detergency and foam formation, biosurfactants are suitable for various agricultural applications, particularly in pesticide and agrochemical formulations. They can function as biopesticides to manage pests, pathogens, phytopathogenic fungi, and weeds due to their antimicrobial activity. Moreover, plants can benefit from biosurfactant molecules and microorganisms as nutrients. They can also aid efficiently in the distribution of micronutrients and metals in the soil. They also stimulate plant immunity and are utilized for soil hydrophilization to ensure proper moisture levels and uniform fertilizer distribution. This review aims to provide valuable insights into the role and properties of biosurfactants as agricultural adjuvants, fostering the development of sustainable formulations to replace the chemical surfactants used in pesticides. For this purpose, the general aspects of global agricultural activity are initially described, followed by a discussion of pesticides, including herbicides, fungicides, and insecticide products. Next, the properties of chemical surfactants are discussed and the use of green surfactants, with emphasis on microbial biosurfactants, is demonstrated. The application of biosurfactants in the agricultural industry and trends are addressed and prospects for the application of these agents are discussed.

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Section: Adjuvants For Seed Germination and Plant Growthmentioning

confidence: 96%

Biosurfactants: Promising Biomolecules for Agricultural Applications

Silva,

Medeiros,

Converti

et al. 2024

Sustainability

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“…They can stimulate tolerance to environmental stresses such as drought [152] and low soil fertility [153]. They can also induce host plant defense from the production of antibiotics and secondary metabolites [154,155], and biosurfactant compounds [156,157].…”

Section: Applications Of Phosphate-solubilizing Microorganisms As Pla...mentioning

confidence: 99%

Phosphorus-Solubilizing Microorganisms: A Key to Sustainable Agriculture

et al. 2023

Self Cite

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Phosphorus (P) is one of the essential macronutrients for plant growth, being a highly required resource to improve the productive performance of several crops, especially in highly weathered soils. However, a large part of the nutrients applied in the form of fertilizers becomes “inert” in the medium term and cannot be assimilated by plants. Rationalizing the use of phosphorus is a matter of extreme importance for environmental sustainability and socioeconomic development. Therefore, alternatives to the management of this nutrient are needed, and the use of P-solubilizing microorganisms is an option to optimize its use by crops, allowing the exploration of less available fractions of the nutrient in soils and reducing the demand for phosphate fertilizers. The objective of this study is to discuss the importance of phosphorus and how microorganisms can intermediate its sustainable use in agriculture. In this review study, we present several studies about the role of microorganisms as phosphorus mobilizers in the soil. We describe the importance of the nutrient for the plants and the main problems related to the unsustainable exploitation of its natural reserves and the use of chemical fertilizers. Mainly we highlight how microorganisms constitute a fundamental resource for the release of the inert portion of the nutrient, where we describe several mechanisms of solubilization and mineralization. We also discussed the benefits that the inoculation of P-solubilizing microorganisms provides to crops as well as practices of using them as bioinoculants. The use of microorganisms as inoculants is a viable resource for the future of sustainable agriculture, mainly because its application can significantly reduce the application of P and, consequently, reduce the exploitation of phosphorus and its reserves. In addition, new research must be conducted for the development of new technologies, prospecting new biological products, and improvement of management practices that allow for higher efficiency in the use of phosphorus in agriculture.

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A Little Helper: Beneficial Bacteria with Growth-Promoting Mechanisms Can Reduce Asian Soybean Rust Severity in a Cell-Free Formulation

Cited by 2 publications

References 66 publications

Biosurfactants: Promising Biomolecules for Agricultural Applications

Biosurfactants: Promising Biomolecules for Agricultural Applications

Phosphorus-Solubilizing Microorganisms: A Key to Sustainable Agriculture

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