Biofertilizing Effect of Chlorella sorokiniana Suspensions on Wheat Growth

Kholssi, Rajaa; Marks, Evan A.N.; Miñón, Jorge; Montero, Olimpio; Debdoubi, Abderrahmane; Rad, Carlos

doi:10.1007/s00344-018-9879-7

Cited by 65 publications

(45 citation statements)

References 21 publications

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“…Several studies have analyzed plant responses to algal biomass (Mulbry et al, 2005;Grzesik and Romanowska-Duda, 2014;Mukherjee et al, 2015Mukherjee et al, , 2016Kholssi et al, 2018;Schreiber et al, 2018). Application of cyanobacteria has a positive effect on maize under mild drought and slightly elevated temperature conditions (Piotrowski et al, 2016).…”

Section: Background For Algal Biomass and Its Application To Cropsmentioning

confidence: 99%

“…Grzesik and Romanowska-Duda, 2014 treated maize seeds with Chlorella sp., found positive healthy effects for 14 days in seedlings, and proposed a signaling mechanism rather than a nutrient mechanism. Kholssi et al, 2018 grew wheat for 2 weeks in solution with Chlorella sorokiniana and report that the filtered medium improved both growth and germination more than algae biomass itself. They propose hormonal signals but did not investigate which compounds were responsible for the observed response.…”

Section: Background For Algal Biomass and Its Application To Cropsmentioning

confidence: 99%

“…We assume that residual algal growth media that might still have been attached after a rinse with tap water (Schreiber et al, 2018) was not responsible for the initial growth boost since algae biomass, both dried and wet, led to different growth trends by 30 DAS (Figure 2). Even the effects of additional metabolically active compounds can be ruled out due to this measure (Kholssi et al, 2018). There is some evidence that plants might also be able to take up larger organic molecules and digest them within the roots (Paungfoo-Lonhienne et al, 2010), but the main pathway for P uptake is still considered to be in the form of phosphate using transporters within the outer root membranes; especially root hairs (Gahoonia and Nielsen, 1998).…”

Section: Availability Of Algal P Is Temporally and Spatially Different From Mineral Pmentioning

confidence: 99%

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Wheat Can Access Phosphorus From Algal Biomass as Quickly and Continuously as From Mineral Fertilizer

et al. 2021

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Algae can efficiently take up excess nutrients from waterways, making them a valuable resource potentially capable of replacing synthesized and mined fertilizers for agriculture. The capacity of algae to fertilize crops has been quantified, but it is not known how the algae-derived nutrients become available to plants. We aimed to address this question: what are the temporal dynamics of plant growth responses to algal biomass? to better propose mechanisms by which plants acquire nutrients from algal biomass and thereby study and promote those processes in future agricultural applications. Data from various sources were transformed and used to reconstruct the nutrient release from the algae Chlorella vulgaris and subsequent uptake by wheat (Triticum aestivum L.) (as reported in Schreiber et al., 2018). Plants had received 0.1x or 1x dried algae or wet algae, or zero, 0.1x or 1x mineral fertilizer calculated from agricultural practices for P application and grown to 55 days in three soils. Contents of P and other nutrients acquired from algae were as high as from mineral fertilizer, but varied based on moisture content and amount of algae applied to soils (by 55 days after sowing plants with 1x mineral fertilizer and 1x dried algae had 5.6 mg P g DWshoot; 2.2-fold more than those with 0 or 0.1x mineral fertilizer, 0.1x dried algae and wet algae, and 1x wet algae). Absolute and relative leaf area growth and estimated P uptake rates showed similar dynamics, indicating that wheat acquires P from algae quickly. A model proposes that algal fertilizer promotes wheat growth after rapid transformation in soil to inorganic nutrients. We conclude theoretically that phosphorus from algal biomass is available to wheat seedlings upon its application and is released gradually over time with minor differences related to moisture content on application. The growth and P uptake kinetics hint at nutrient forms, including N, and biomass stimulation worthy of research to further exploit algae in sustainable agriculture practices. Temporal resolved phenotype analyses in combination with a mass-balance approach is helpful for understanding resource uptake from recycled and biofertilizer sources by plants.

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Section: Background For Algal Biomass and Its Application To Cropsmentioning

confidence: 99%

Section: Background For Algal Biomass and Its Application To Cropsmentioning

confidence: 99%

Section: Availability Of Algal P Is Temporally and Spatially Different From Mineral Pmentioning

confidence: 99%

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Wheat Can Access Phosphorus From Algal Biomass as Quickly and Continuously as From Mineral Fertilizer

et al. 2021

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“…vulgaris are beneficial microscopic species that can increase nutrient uptake, growth and abiotic stress tolerance in plants ( Agwa et al, 2017 , Faheed and Fattah, 2008 , Kang et al, 2015 , Oancea et al, 2013 , Ördög et al, 2004 , Rajasekaran et al, 2015 , Zayadan et al, 2014 , Han et al, 2018 ). It offers substantial levels of macro and micronutrients, metabolites such as carbohydrates, proteins, fatty acid methyl esters and growth-promoting factors, such as cytokinins, which affect plant growth and yield ( Elarroussia et al, 2016 , Kholssi et al, 2018 , Kuşvuran and Can, 2020 ).…”

Section: Discussionmentioning

confidence: 99%

Evaluation of the effects of Chlorella vulgaris, Nannochloropsis salina, and Enterobacter cloacae on growth, yield and active compound compositions of Moringa oleifera under salinity stress

dayel

Sherif

2021

Saudi Journal of Biological Sciences

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Application of Chlorella vulgaris , Nannochloropsis salina and Enterobacter cloacae has been reported to improve the growth of multiple plant species. Moringa oleifera is a medicinal plant found in Saudi Arabia. Its leaves, flowers and fruit have been used as food. Moringa oleifera is rich in rutin and gallic acid and many other bioactive compounds, which collectively contribute to its demonstrated range of pharmacological activities. In Saudi Arabia, the semi-arid and arid weather presents a significant challenge to agriculture. High salinity in cultivated land is a particular threat. We applied Chlorella vulgaris , Nannochloropsis salina , and Enterobacter cloacae at multiple salinities to Moringa oleifera to investigate their effects on the growth, yield, and photosynthetic pigment content. We also examined possible changes in the phytochemical composition. The application of Chlorella vulgaris , Nannochloropsis salina and Enterobacter cloacae enhanced plant growth and yield, while inhibition was observed at high (6000 ppm) salinity. The presence of Chlorella vulgaris and Nannochloropsis salina altered plant growth and yield and rutin and gallic acid content of Moringa oleifera plants grown in saline conditions. Microalgae species were recommended for use as a bio-fertiliser alternative to mainstream synthetic fertilisers.

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“…Biorefinery is a comprehensive approach that could fractionize all biocompositions of microalgal biomass for these specific uses. In the field of agriculture, it has been reported that algal culture medium, algal extract, and algal biomass enhanced crop seed germination and plant growth (root length, plant height, branch, and leave and flower increase) [7][8][9][10][11]. Although some good results have been achieved on application of microalgal products as fertilizers, biostimulants, and regulators of plant growth, these studies poorly provided analytical techniques for characterization of these algal products.…”

Section: Introductionmentioning

confidence: 99%

Characterization of Endogenous Auxins and Gibberellins Produced by Chlorella sorokiniana TH01 under Phototrophic and Mixtrophic Cultivation Modes toward Applications in Microalgal Biorefinery and Crop Research

Tran

et al. 2020

Journal of Chemistry

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Microalgae have been reported to produce endogenous phytohormones including auxins, gibberellins, cytokinins, brassinosteroids, and abscisic acid. Methanol residual released from microalgal lipid extraction usually contains a variety of bioactive compounds including the phytohormones; however, they are poorly characterized and used for other applications. This study aimed at investigating auxin, gibberellin, and cytokinin production of C. sorokiniana TH01 under phototrophic and mixtrophic cultivations. Moreover, endogenous auxins, gibberellins, and cytokinins in methanol residual obtained from the algal lipid extraction were characterized using HPLC-ESI-MS/MS toward application for crop and biorefinery research. Data showed that endogenous indole-3-acetic acid (IAA), 3-indolepropionic acid (IPA), gibberellin A4 (GA4), and gibberellin A7 (GA7) were detected in C. sorokiniana TH01 biomass. Under the phototrophic mode, total auxin and GA levels were reduced to 0.98 and 9.65 μg/g DW under salt stress (20 g NaCl/L) from 3.59 to 24.71 μg/g DW, respectively, measured for the control. Similarly, total auxins and GAs were also decreased to 0.56 and 2.86 μg/g DW, respectively, under mixtrophic growth with 6 g glucose/L. Total auxins and GAs determined in the water algal extract were 1062.7 and 2000.1 μg/L, respectively. Treatment with higher 40% (v/v) of the algal extract triggered earlier seed germination of rice and tomato plants in 2 and 1 days, respectively. Our new findings in capability of C. sorokiniana TH01 in endogenous phytohormone production contain fundamental merits for further optimization of the algal production (i.e., cultivation modes, conditions, lipids, biomass productivity, and hormone levels) to be used for biorefinery.

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Biofertilizing Effect of Chlorella sorokiniana Suspensions on Wheat Growth

Cited by 65 publications

References 21 publications

Wheat Can Access Phosphorus From Algal Biomass as Quickly and Continuously as From Mineral Fertilizer

Wheat Can Access Phosphorus From Algal Biomass as Quickly and Continuously as From Mineral Fertilizer

Evaluation of the effects of Chlorella vulgaris, Nannochloropsis salina, and Enterobacter cloacae on growth, yield and active compound compositions of Moringa oleifera under salinity stress

Characterization of Endogenous Auxins and Gibberellins Produced by Chlorella sorokiniana TH01 under Phototrophic and Mixtrophic Cultivation Modes toward Applications in Microalgal Biorefinery and Crop Research

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