Plant growth biostimulant activity of the green microalga Desmodesmus subspicatus

Mazepa, Ester; Malburg, Barbara V.; Mógor, Gilda; Oliveira, Amanda Cristina de; Amatussi, Juliana de Oliveira; Corrêa, Diego O.; Lemos, J. S.; Ducatti, Diogo R.B.; Duarte, Maria Eugênia R.; Mógor, Átila Francisco; Noseda, Miguel D.

doi:10.1016/j.algal.2021.102434

Cited by 19 publications

(2 citation statements)

References 51 publications

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“…Although a wide range of bioactive compounds has been identified in microalgae, including phytohormones, amino acids, polyamines, glycosides, fatty acids, vitamins, terpenoids, and flavonoids (Mazepa et al, 2021; Mógor et al, 2018; Plaza et al, 2018; Puglisi et al, 2018; Refaay et al, 2021), the extract composition varies depending not only on microalgal strain, but also on cultivation method, harvesting time, and extraction technique (Aremu et al, 2015; Gitau et al, 2022; Mironiuk & Chojnacka, 2018). While extraction should be inexpensive and environmentally sustainable, bioactive compounds must be preserved (Kapoore et al, 2021).…”

Section: Introductionmentioning

confidence: 99%

Microalgae from Nordic collections demonstrate biostimulant effect by enhancing plant growth and photosynthetic performance

Chovanček

Salazar

Şirin

et al. 2023

Physiologia Plantarum

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We investigated the biostimulant potential of six microalgal species from Nordic collections extracted with two different procedures: thermal hydrolysis with a weak solution of sulfuric acid accompanied by ultrasonication and bead‐milling with aqueous extraction followed by centrifugation. To this aim, we designed a phenotyping pipeline consisting of a root growth assay in the model plant Arabidopsis thaliana, complemented with greenhouse experiments to evaluate lettuce yield (Lactuca sativa L. cv. Finstar) and photosynthetic performance. The best‐performing hydrolyzed extracts stimulated Arabidopsis root elongation by 8%–13% and lettuce yield by 12%–15%. The in situ measured photosynthetic performance of lettuce was upregulated in the efficient extracts: PSII quantum yield increased by 26%–34%, and thylakoid proton flux increase was in the range of 34%–60%. In contrast, aqueous extracts acquired by bead‐milling showed high dependence on biomass concentration in the extract and an overall plant growth enhancement was not attained in any of the applied dosages. Our results indicate that hydrolysis of the biomass can be a decisive factor for rendering effective plant biostimulants from microalgae.

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Section: Introductionmentioning

confidence: 99%

Microalgae from Nordic collections demonstrate biostimulant effect by enhancing plant growth and photosynthetic performance

Chovanček

Salazar

Şirin

et al. 2023

Physiologia Plantarum

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“…Also the microalgae have been reported as e cient sources of biofertilizers and biostimulants due to the presence of bioactive molecules in their composition. The presence of glycosides and the cytokinin zeatin have been identi ed in the green microalgae (Chlorophyta) Desmodesmus subspicatus (Mazepa et al 2021), similarly polyamines and amino acids in Asterarcys quadricelullare (Mógor et al 2022;Cordeiro et al 2022a) and also in the blue-green algae (Cyanophyta) Arthrospira platensis (Spirulina platensis) (Mógor et al 2017;Mógor et al 2018).…”

Section: Introductionmentioning

confidence: 99%

Synergic combination of calcareous algae and cyanobacteria stimulate metabolic alterations improving plant growth and yield

Amatussi

Mógor

Cordeiro

et al. 2022

Preprint

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The use of natural bioactive sources to promote plant growth and crop yield gains, such as those obtained from algae, are in evidence as a sustainable agriculture practice. In this sense, recently the calcareous alga Lithothamnium sp. had its bioactive plant growth promoting effect related to the presence of high degree of humification humic acid with pronounced auxin-like effects, while the cyanobacterium Arthrospira platensis (Spirulina plantensis) has the plant growth promoting effect attributed to a pool of bioactive molecules, such as the free L-amino acids and polyamines. To explore the effect of algae sources combinations as plant biostimulants, the aim of this work was to evaluate the effects of foliar application of micronized Lithothamnium (Lm) associated with A. platensis (Ap) dried biomass in onion (Allium cepa) metabolism, growth and yield. For that, adopting an step by step approach three experiments were conducted: (i) foliar application to onion plants grown in pots in greenhouse comparing algae sources alone and combined, (ii) foliar application to onion plants in the field under organic system testing algae sources combinations (first season), and (iii) foliar application in the field comparing doses and frequencies of selected combinations (second season). The association of algae sources promoted growth and biochemical changes, thus pigment contents, total sugars, amino acids and nitrate reductase enzyme activity were improved, increasing the onion yield by two seasons in a nature friendly way.

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Algal‐Elicitor as a Bio‐Stimulant: Post‐Remediation Applications

Divakar,

Alemu,

Ettana

et al. 2024

Algae Mediated Bioremediation

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Plant growth biostimulant activity of the green microalga Desmodesmus subspicatus

Cited by 19 publications

References 51 publications

Microalgae from Nordic collections demonstrate biostimulant effect by enhancing plant growth and photosynthetic performance

Microalgae from Nordic collections demonstrate biostimulant effect by enhancing plant growth and photosynthetic performance

Synergic combination of calcareous algae and cyanobacteria stimulate metabolic alterations improving plant growth and yield

Algal‐Elicitor as a Bio‐Stimulant: Post‐Remediation Applications

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