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Identification and Quantification of Plant Growth Regulators and Antioxidant Compounds in Aqueous Extracts of Padina durvillaei and Ulva lactuca

AuthorsBenítez García, Israel; Dueñas Ledezma, Ana Karen; Martínez Montaño, Emmanuel; Salazar Leyva, Jesús Aarón; Carrera, Esther ; Osuna Ruiz, Idalia
KeywordsSeaweed extract
Phytohormone profiling
Plant growth regulators
Brown seaweed
Green algae
Issue Date18-Jun-2020
PublisherMultidisciplinary Digital Publishing Institute
CitationAgronomy 10(6): 866 (2020)
AbstractAqueous seaweed extracts have diverse compounds such as Plant-Growth Regulators (PGRs) which have been utilized in agricultural practices for increasing crop productivity. Algal biomass of Padina durvillaei and Ulva lactuca have been suggested for use as biofertilizers because of plant growth-enhancing properties. This work aimed to identify the main PGRs and antioxidant properties in P. durvillaei and U. lactuca extracts, such as abscisic acid, auxins, cytokinins, gibberellins, jasmonates, and salicylates, to assess their potential use as biofertilizers that improve plant growth and crop yield. Phytochemical analyses of two seaweed extracts showed a significantly higher content of sulfates, flavonoids, and phenolic compounds in P. durvillaei extract, which could be linked to its higher antioxidant activity (DPPH, ABTS, and FRAP) compared to U. lactuca extract. The identification and quantification of PGRs showed two gibberellins (GA1 and GA4), abscisic acid (ABA), indoleacetic acid (IAA), three cytokinins (tZ, IP, and DHZ), jasmonic acid (JA), and salicylic acid (SA) in two seaweed extracts. However, GA4, tZ, and DHZ contents were significantly higher in P. durvillaei compared to U. lactuca extracts. These findings evidence that P. durvillaei and U. lactuca extracts are suitable candidates for use as biofertilizers.
Description© 2020 by the authors.
Publisher version (URL)https://doi.org/10.3390/agronomy10060866
Appears in Collections:(IBMCP) Artículos
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