TITLE:
Bioactivity of Cyanobacterial Biomass Related to Amino Acids Induces Growth and Metabolic Changes on Seedlings and Yield Gains of Organic Red Beet
AUTHORS:
Átila Francisco Mógor, Juliana de Oliveira Amatussi, Gilda Mógor, Gabriel Bocchetti de Lara
KEYWORDS:
Biostimulant, Biofertilizer, Microalgae, Plant Growth Promotion
JOURNAL NAME:
American Journal of Plant Sciences,
Vol.9 No.5,
April
19,
2018
ABSTRACT: In order to increase the understanding about Arthrospira platensis biomass use to
plant growth promotion, the aim of this study was to determine total free amino
acid content on lyophilized biomass and the biomass bioactivity on bioassay, as well as, the effects of
foliar applications of aqueous suspension of biomass on seedlings growth
ascertaining biochemical variables related to the potential bioactivity, and
also at field on organically grown red beet yield. The results identified the
bioactivity and expressed well the capacity of plant growth promotion related
to stimulus on chlorophyll synthesis and on amino acid and protein increments
on seedlings leaves. The yield had significant improvement related to hypocotyl
growth. The results could be justified by the content of free amino acids on
biomass, being them the highest amount of potential bioactive compounds of
cyanobacteria. The Arthrospira platensis lyophilized biomass could be considered an efficient biofertilizer-biostimulant
source, promoting yield gains by a sustainable way.