Phycocyanin Solution Effects on Senescence and Biochemical Parameters in Wheat Leaf Segments


Sağlam S., Çetinkaya T., Yaşar E.

TuPA International Proteomics Congress // 7th Turkish National Proteomics Congress, İstanbul, Türkiye, 18 Eylül 2025, (Özet Bildiri)

  • Yayın Türü: Bildiri / Özet Bildiri
  • Basıldığı Şehir: İstanbul
  • Basıldığı Ülke: Türkiye
  • İstanbul Üniversitesi Adresli: Evet

Özet

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