Spirulina (Arthrospira platensis) priming mitigates cadmium stress in pearl millet (Pennisetum glaucum) by enhancing photosystem efficiency.

ABSTRACT: Cadmium (Cd) is a highly toxic pollutant that impairs plant growth and photosynthetic performance. While seed priming with Spirulina (Arthrospira platensis) can enhance stress tolerance, its specific role in protecting the photosynthetic machinery from Cd toxicity remains unexplored. This study investigates for the first time the potential of Spirulina (Arthrospira platensis) seed priming to enhance cadmium stress tolerance in pearl millet (Pennisetum glaucum L.). Seedlings derived from P. glaucum seeds primed with Spirulina extract (CPS) or left unprimed (CUPS) were grown for 45 days in control or Cd-supplemented (50 µM CdCl₂) nutrient medium under controlled conditions to evaluate growth, photosynthetic performance, and oxidative stress responses. Cd exposure significantly reduced plant

SUBMITTER: Essid I 

PROVIDER: S-EPMC12825181 | biostudies-literature | 2025 Dec

REPOSITORIES: biostudies-literature