Microalgae and Cyanobacteria: How Exploiting These Microbial Resources Can Address the Underlying Challenges Related to Food Sources and Sustainable Agriculture: A Review

Chanda, Mutale-Joan; Sbabou, Laïla; Hicham, El Arroussi

doi:10.1007/s00344-021-10534-9

Cited by 27 publications

(7 citation statements)

References 184 publications

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“…This decrease was likely attributed to various factors such as microbial activity and decomposition processes within the soil. Cyanobacterial growth improves soil properties, potentially aiding infertile soil reclamation when combined with PGPB, leading to enhanced plant growth, organic matter, improved soil fertility, nutrient utilization, and increased plant stress tolerance [10,11,27,[66][67][68]. It may be due to the improvement of organic matter in the soil, which has had a positive impact on the soil's physicochemical and biological properties.…”

Section: Discussionmentioning

confidence: 99%

Harnessing the Synergy of the Cyanobacteria-Plant Growth Promoting Bacteria for Improved Maize (Zea mays) Growth and Soil Health

Solomon,

Mutum,

Rakszegi

et al. 2023

Sustainability

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Intensive use of chemicals in agriculture harms the soil, disrupts the ecological balance, and impacts microorganisms. Biofertilizers are gaining traction due to their eco-friendly and cost-effective benefits. This study evaluates the potential of the cyanobacterium MACC-612 (Nostoc piscinale) and plant growth-promoting bacteria (PGPB) (Azospirillum lipoferum, Pseudomonas fluorescens) in enhancing crop growth, yield, and soil health. A two-year field study was conducted using a factorial approach and a completely randomized block design, comprising four replications. The three levels of the cynobacterium (0, 0.3, or 1 g/L of N. MACC-612) and different bacteria strains were used in the experiments. The results demonstrated substantial enhancements in seed number per ear, kernel weight, and yield when using N. piscinale and PGPB, whether used individually or in combination. The soil pH, humus, (NO3− + NO2−)-nitrogen, and soil microbial biomass showed significant increases across both years. The combining application of the N. piscinale (0.3 g/L) with A. lipoferum increased grain yield by 33.20% in the first year and 31.53% in the second. The humus and (NO3− + NO2−)-nitrogen content significantly rose in treatments involving N. piscinale at 0.3 g/L combined with A. lipoferum at about 20.25% and 59.2%, respectively, in comparison to the untreated control. Hence, the most effective approach was the combined use of N. piscinale and A. lipoferum, which enhanced maize growth and soil fertility.

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Section: Discussionmentioning

confidence: 99%

Harnessing the Synergy of the Cyanobacteria-Plant Growth Promoting Bacteria for Improved Maize (Zea mays) Growth and Soil Health

Solomon,

Mutum,

Rakszegi

et al. 2023

Sustainability

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“…In addition to its application in soil, the use of cyanobacteria in hydroponic systems should also be mentioned here, as its cultivation in liquid medium facilitates an attachment of the cyanobacteria to the roots of the plants and thus the exchange of nutrients and secondary metabolites. Mutale-Joan et al [183] give a detailed review on the use of cyanobacteria in hydroponics.…”

Section: Potential Application Of Artificial Co-cultures In (Agrar-)i...mentioning

confidence: 99%

The Beneficial Effects of Cyanobacterial Co-Culture on Plant Growth

Kollmen

Strieth

2022

Life

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Cyanobacteria are ubiquitous phototrophic prokaryotes that find a wide range of applications in industry due to their broad product spectrum. In this context, the application of cyanobacteria as biofertilizers and thus as an alternative to artificial fertilizers has emerged in recent decades. The benefit is mostly based on the ability of cyanobacteria to fix elemental nitrogen and make it available to the plants in a usable form. However, the positive effects of co-cultivating plants with cyanobacteria are not limited to the provision of nitrogen. Cyanobacteria produce numerous secondary metabolites that can be useful for plants, for example, they can have growth-promoting effects or increase resistance to plant diseases. The effects of biotic and abiotic stress can as well be reduced by many secondary metabolites. Furthermore, the biofilms formed by the cyanobacteria can lead to improved soil conditions, such as increased water retention capacity. To exchange the substances mentioned, cyanobacteria form symbioses with plants, whereby the strength of the symbiosis depends on both partners, and not every plant can form symbiosis with every cyanobacterium. Not only the plants in symbiosis benefit from the cyanobacteria, but also vice versa. This review summarizes the beneficial effects of cyanobacterial co-cultivation on plants, highlighting the substances exchanged and the strength of cyanobacterial symbioses with plants. A detailed explanation of the mechanism of nitrogen fixation in cyanobacterial heterocysts is given. Finally, a summary of possible applications of co-cultivation in the (agrar-)industry is given.

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“…Global human populations continue to rise and are projected to reach 9.8 billion by 2050, a trend that emphasizes the critical need for sustainable solutions to long-term food security [1]. Current large-scale agricultural practices rely on the application of chemical fertilizers to enhance crop productivity, but this boon is inexorably linked with negative impacts on soil biodiversity, human health, and other downstream effects [2].…”

Section: Introductionmentioning

confidence: 99%

Increasing Concentrations of Arthrospira maxima Sonicated Biomass Yields Enhanced Growth in Basil (Ocimum basilicum, Lamiaceae) Seedlings

Marín-Marín,

Estrada-Peláez,

Delgado Naranjo

et al. 2024

Horticulturae

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The continued increase in human populations and use of chemical fertilizers remain a threat to the health and stability of human–ecological systems worldwide. To ameliorate this problem and achieve long-term food security, a variety of ecofriendly technologies have been developed, including the production of cyanobacteria-based biofertilizers. This technology can be optimized through experiments that assess how plant growth is enhanced under different biofertilizer concentrations (g L−1). In this study, the biofertilizer capabilities of various concentrations of sonicated biomass (0, 2.5, 5, 10, 20, and 40 g L−1) derived from the cyanobacteria Arthrospira maxima on the growth of basil (Ocimum basilicum, Lamiaceae) were assessed, comparing their effectiveness with that of a positive control, a commercial biofertilizer (OptiMar Algas Marinas®) administered at 4 mL L−1. Generally, increased concentrations led to enhanced growth parameters; however, discernible differences from the negative control (0 g L−1) were often observed only when concentrations exceeded 5 g L−1. Surprisingly, the negative and positive controls often yielded similar results. A chemical composition analysis of A. maxima revealed high concentrations of the phytohormones, macronutrients, and essential amino acids that likely explain how our A. maxima sample enhanced growth in basil. Further research is required to determine how other crop plants respond to different concentrations of A. maxima. Additionally, assessing the feasibility of creating an economically accessible product with a higher concentration of A. maxima is crucial for practical applications.

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Microalgae and Cyanobacteria: How Exploiting These Microbial Resources Can Address the Underlying Challenges Related to Food Sources and Sustainable Agriculture: A Review

Cited by 27 publications

References 184 publications

Harnessing the Synergy of the Cyanobacteria-Plant Growth Promoting Bacteria for Improved Maize (Zea mays) Growth and Soil Health

Harnessing the Synergy of the Cyanobacteria-Plant Growth Promoting Bacteria for Improved Maize (Zea mays) Growth and Soil Health

The Beneficial Effects of Cyanobacterial Co-Culture on Plant Growth

Increasing Concentrations of Arthrospira maxima Sonicated Biomass Yields Enhanced Growth in Basil (Ocimum basilicum, Lamiaceae) Seedlings

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