Algae as Bio-fertilizers: Between current situation and future prospective

Ammar, Esraa E.; Aioub, Ahmed A. A.; Elesawy, Ahmed E.; Karkour, Ali M.; Mouhamed, Moustafa S.; Amer, Aliaa A.; EL-Shershaby, Nouran A.

doi:10.1016/j.sjbs.2022.03.020

Cited by 96 publications

(55 citation statements)

References 44 publications

(72 reference statements)

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“…The most significant increase in yield parameters was recorded in plants treated with WW + Sp, WW + Ch, and WW + SA. Similar observations were indicated by Ammar et al (2022) that found that the application of algae treatments (e.g., Spirulina platensis, Chlorella vulgaris, Nostoc sp., Scenedesmus sp., Chlorococcum sp., Chroococcus sp., Phormidium sp., Anabaena sp., Fischerella sp., and Spirogyra sp.) for some plants (wheat, pearl millet, pea, maize, and rice) increased the economic yield, the average increase in seeds and grain yield, and quality parameters.…”

Section: Discussionsupporting

confidence: 87%

Impact of Irrigation with Wastewater on Accumulation of Heavy Metals in Phaseolus vulgaris L. and Its Remediation

Nowwar

Farghal

Ismail

et al. 2022

J Soil Sci Plant Nutr

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This study investigates the effects of Spirulina platensis, Chlorella vulgaris, leaves powder of Salix alba, and ethylenediaminetetraacetic acid treatments on the biochemical and yield traits of Phaseolus plants grown under wastewater irrigation. In addition, to assess the uptake and accumulation of heavy metals into the edible plant part. Water samples were obtained from each irrigation source (fresh tap water and untreated wastewater collected from El-Rahawy drain, Giza, Egypt); the plants were treated with our treatments (3 g per kg soil) at the beginning of the experiment (mixed fully into the soil). The results observed that the irrigation of Phaseolus plants with wastewater markedly stimulated the free proline contents, total phenols, superoxide dismutase, catalase, peroxidase, polyphenol oxidase, lipid peroxidation, and abscisic acid throughout the two growth stages. Indole acetic acid, gibberellic acid, yield parameters, total soluble carbohydrate, and protein in seeds were significantly reduced. The concentrations of nickel (Ni), cadmium (Cd), lead (Pb), and cobalt (Co) in Phaseolus seeds were significantly increased beyond recommended limits set by international organizations. However, our treatments significantly reduced the contents of Ni, Cd, Pb, and Co in seeds; free proline; total phenols; superoxide dismutase; catalase; peroxidase; polyphenol oxidase; lipid peroxidation; and abscisic acid in Phaseolus plants. Moreover, indole acetic acid, gibberellic acid, all yield traits, and seed components were enhanced. This study concluded that Spirulina platensis and salix leaves powder being economically and environmentally friendly can be considered an efficient strategy to mitigate the harmful effects of wastewater on plants.

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Section: Discussionsupporting

confidence: 87%

Impact of Irrigation with Wastewater on Accumulation of Heavy Metals in Phaseolus vulgaris L. and Its Remediation

Nowwar

Farghal

Ismail

et al. 2022

J Soil Sci Plant Nutr

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“…Furthermore, in the search to overcome the use of common fertilizers and agrochemicals, microalgae biomass grown in wastewater is becoming very useful to be applied as biofertilizer and biostimulant, achieving soil and crop enrichment [ 68 , 69 , 70 , 71 ].…”

Section: Mixotrophic Production Of High-added Value and Low-value Pro...mentioning

confidence: 99%

“…The use of microalgae biomass as biofertilizer or biostimulant for agricultural crops is an emergent field [ 71 ];…”

Section: Figurementioning

confidence: 99%

Microalgae-Based Biorefineries: Challenges and Future Trends to Produce Carbohydrate Enriched Biomass, High-Added Value Products and Bioactive Compounds

Olguín

Sánchez-Galván

Arias‐Olguín³

et al. 2022

Biology

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Microalgae have demonstrated a large potential in biotechnology as a source of various macromolecules (proteins, carbohydrates, and lipids) and high-added value products (pigments, poly-unsaturated fatty acids, peptides, exo-polysaccharides, etc.). The production of biomass at a large scale becomes more economically feasible when it is part of a biorefinery designed within the circular economy concept. Thus, the aim of this critical review is to highlight and discuss challenges and future trends related to the multi-product microalgae-based biorefineries, including both phototrophic and mixotrophic cultures treating wastewater and the recovery of biomass as a source of valuable macromolecules and high-added and low-value products (biofertilizers and biostimulants). The therapeutic properties of some microalgae-bioactive compounds are also discussed. Novel trends such as the screening of species for antimicrobial compounds, the production of bioplastics using wastewater, the circular economy strategy, and the need for more Life Cycle Assessment studies (LCA) are suggested as some of the future research lines.

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“…Microalgae are promising feedstock for biofuels [ 1 , 2 ], cosmetics [ 3 ], pharmaceuticals [ 4 ], nutrition and food additives [ 5 ], and aquaculture [ 6 , 7 ]. Microalgae can be used in agriculture as biostimulants and biofertilizers [ 8 ] and bioremediates [ 9 ]. They represent a rich biological resource of several valuable pigments, such as carotenoids [ 10 , 11 ].…”

Section: Introductionmentioning

confidence: 99%

Identification and Characterization of a New Microalga Dysmorphococcus globosus-HI from the Himalayan Region as a Potential Source of Natural Astaxanthin

Zohir

Kapase

Kumar

2022

Biology

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Synthesized astaxanthin (ASX), stereoisomers of 3S,3′R, 3R,3′R, and 3S,3′S, have over 95% market share and have relatively poor antioxidant and bioactivity properties, with persistent issues in terms of biological functions, health benefits, and biosafety if compared to natural ASX. Bioprospecting of new microalgal strains could be vital for a new source of powerful antioxidant (ASX). In this study, a new algal strain was isolated from the Indian foothills of the Himalayas. Its identity was discerned by morphological and DNA barcode studies. It is a unicellular spheroidal cell-shaped alga with 100–200 μm diameter. The isolate has 93.4% similarity to Dysmorphococcus globosus species based on 18S-rDNA phylogenetic analysis and named as D. globosus-HI (HI stands for Himalayan India). Its growth and major cellular components (carotenoids, carbohydrates, protein, lipids, fatty acid profile, and ASX) were optimized using the seven different culture media. The highest biomass (1.14 g L−1) was observed in the MBBM medium, with a specific growth rate (0.087 day−1), division/day (0.125), and cellular yield (6.16 x 106 cells/mL). The highest carotenoids (1.56 mg g−1), lipids (32.5 mg L−1), and carbohydrates (135.62 mg L−1) were recorded in the 3N-BBM medium. The maximum ω3-FAs (17.78%), ω6-FAs (23.11%), and ω9-FAs (7.06%) were observed in MBBM, JW, and BG-11 medium respectively. The highest amount of antioxidant ASX was accumulated in the 3N-BBM medium (391 mg L−1). It is more than any other known algal species used in the production of natural ASX. The optimized biochemical studies on the D. globosus-HI strain should fulfill the increasing demand for natural ASX for commercial application.

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Algae as Bio-fertilizers: Between current situation and future prospective

Cited by 96 publications

References 44 publications

Impact of Irrigation with Wastewater on Accumulation of Heavy Metals in Phaseolus vulgaris L. and Its Remediation

Impact of Irrigation with Wastewater on Accumulation of Heavy Metals in Phaseolus vulgaris L. and Its Remediation

Microalgae-Based Biorefineries: Challenges and Future Trends to Produce Carbohydrate Enriched Biomass, High-Added Value Products and Bioactive Compounds

Identification and Characterization of a New Microalga Dysmorphococcus globosus-HI from the Himalayan Region as a Potential Source of Natural Astaxanthin

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