Potential of Desmodesmus abundans as biofertilizer in common bean (Phaseolus vulgaris L.)

Lopes, Graciela Beatris; Goelzer, Ademir; Reichel, Tharyn; Resende, Mário Lúcio Vilela de; Duarte, Whasley Ferreira

doi:10.1016/j.bcab.2023.102657

Cited by 6 publications

(3 citation statements)

References 38 publications

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“…Desmodesmus is a genus of green microalgae with a high degree of phenotypic plasticity, enabling it to thrive in various environments and withstand fluctuations ( Lin et al, 2020 ). Recently, Desmodesmus abundance has been suggested as a biofertilizer for common bean fields ( Lopes et al, 2023 ). To our knowledge, work has yet to be done on the potential of the genus Desmodesmus as a biocontrol agent or its antibiotic and antifungal capabilities.…”

Section: Discussionmentioning

confidence: 99%

Towards sustainable biocontrol: inhibition of soil borne fungi by microalgae from harsh environments

Eckstien,

Maximov,

Margolis

et al. 2024

Front. Microbiol.

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Using microorganisms as biocontrol agents against soilborne plant pathogens is a promising alternative to chemical pesticides. However, only some biocontrol agents have proven effective under field conditions. This study explores the potential of highly resilient microalgae isolated from harsh environments, such as Biological Soil Crusts and agricultural fields in semi-arid regions, as a novel and sustainable approach to biocontrol. Fifty-nine microalgal strains, including thirteen cyanobacteria and forty-six green algae, were isolated and identified. Dual-culture plate assays and toxicity tests of microalgal growth media were conducted to evaluate the antifungal activity of the isolates against eight representative soilborne pathogens. The results showed that many microalgae strains exhibited significant inhibitory effects on the growth of specific fungal pathogens, although the activity varied among different microalgal strains and pathogen species. Some strains even promoted the growth of certain fungi. The lack of a clear pattern in the antifungal activity highlights the complexity and specificity of the interactions between microalgae and soilborne pathogens. An “Inhibition Effectiveness” metric was developed to quantify biocontrol potential based on fungal growth inhibition. The green algal genus Desmodesmus, particularly Desmodesmus subspicatus isolates, showed higher antifungal efficacy than other genera. While the inhibitory mechanisms remain unclear, the results demonstrate the promising biocontrol capabilities of microalgae from extreme environments like BSCs. Further research could unlock novel opportunities for sustainable disease management by harnessing specific microalgal strains or synergistic strain combinations targeting soilborne pathogens.

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Section: Discussionmentioning

confidence: 99%

Towards sustainable biocontrol: inhibition of soil borne fungi by microalgae from harsh environments

Eckstien,

Maximov,

Margolis

et al. 2024

Front. Microbiol.

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“…The initial stages of the investigation were focused on making a selection of microalgae species capable of growing in wastewater, whose biomass can be used for the production of biostimulants [31,32]. Desmodesmus sp.…”

Section: Microalgae Strainsmentioning

confidence: 99%

“…Previous studies examined biostimulant activity resulting from biomass suspension and aqueous extract of Desmodesmus [31], from Desmodesmus cells (culture centrifuged and washed twice with sterile distilled water) [32], and from Desmodesmus sp. extracts prepared with cells lysed in distilled water [52].…”

Section: Optimization Of a Biocatalysis Processmentioning

confidence: 99%

Revolutionizing Agriculture: Leveraging Hydroponic Greenhouse Wastewater for Sustainable Microalgae-Based Biostimulant Production

Álvarez-Gil,

Blanco-Vieites,

Suárez-Montes

et al. 2023

Sustainability

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The current intensification in agricultural pressure has resulted in the addition of excessive amounts of nutrients. While hydroponic systems have become an agricultural tool to reduce this nutrient addition, the produced nutrient-rich drainage solution, which has a negative effect in water bodies, is still a barrier that needs to be overcome. A promising alternative for nutrient recovery is the cultivation of microalgae, which require a significant quantity of nutrients for their growth. Furthermore, their biostimulant properties enhance the circularity and sustainability approach. This study evaluates microalgae growth with a hydroponic drainage solution and the use of the resulting biomass as a source for biostimulant. Three microalgae strains were tested (Desmodesmus sp., Chlorella vulgaris, and Scenedesmus obliquus) and grown at laboratory scale (0.5 and 2 L) with drainage wastewater taken from hydroponic tomato crops. Measures of OD750 and OD680 revealed Desmodesmus sp. as the strain with the best performance, achieving 1.4 and 1.8, respectively, in the 0.5 L assay and 1.08 and 1.3 in the 2 L assay. These results were confirmed in another assay that compared Desmodesmus sp. growth in drainage wastewater and in control media. Then, Desmodesmus sp. was tested at industrial scale. Results show the columnar PBR reached 1.8 g·L−1 compared to 1.1 g·L−1 achieved with raceways. Finally, the resulting biomass was tested in a biocatalysis process for biostimulant production, suggesting an innovative system to use microalgae biomass cultured in wastewater as a valuable product such as biostimulant.

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Microalgae Cultivated in Cattle Wastewater as a Biofertilizer: Tests on the Production of Arugula (Eruca vesicaria) and the Benefits for Sustainable Agriculture

Dagnaisser,

de Campos,

Pinheiro

et al. 2024

Water Air Soil Pollut

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Potential of Desmodesmus abundans as biofertilizer in common bean (Phaseolus vulgaris L.)

Cited by 6 publications

References 38 publications

Towards sustainable biocontrol: inhibition of soil borne fungi by microalgae from harsh environments

Towards sustainable biocontrol: inhibition of soil borne fungi by microalgae from harsh environments

Revolutionizing Agriculture: Leveraging Hydroponic Greenhouse Wastewater for Sustainable Microalgae-Based Biostimulant Production

Microalgae Cultivated in Cattle Wastewater as a Biofertilizer: Tests on the Production of Arugula (Eruca vesicaria) and the Benefits for Sustainable Agriculture

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