TuPA International Proteomics Congress // 7th Turkish National Proteomics Congress, İstanbul, Türkiye, 18 Eylül 2025, (Özet Bildiri)
Arthrospira platensis is a cyanobacteria species known for
its rich nutritional content and biologically active phycocyanin components.
Solutions at concentrations of 0.05 g/L and 0.1 g/L were prepared from extracts
containing 35% phycocyanin produced from this algae and applied to wheat
segments (Triticum aestivum L.) to investigate their metabolic effects.
Within the scope of the study, the effects of phycocyanin concentrations on
growth parameters, pigment profile (chlorophyll, carotenoid, and anthocyanin),
protein content, peroxidase (POD) and catalase (CAT) activity in wheat leaf
segments were determined after four days. According to the results, 0.05 g/L.
phycocyanin solution increased the amount of carotenoids and anthocyanins of
the segments, while 0.1 g/L solution application increased the fresh weight of
the segments, chlorophyll content, especially protein amount and decreased POD.
The CAT activity has not changed. These findings indicate that phycocyanin
supports delayed senescence, promotes plant growth, and contributes to
physiological defense systems, suggesting its potential as a biostimulant for
sustainable agricultural practices.
Key words: Arthrospira platensis, phycocyanin
pigment, leaf segment, chlorophyll content, biostilumant