6. INTERNATIONAL CONGRESS ON CONTEMPORARY SCIENTIFIC RESEARCH
COLD STRESS DISRUPTS IRON HOMEOSTASIS BY DOWNREGULATING PIC1 (permease ın chloroplasts 1) EXPRESSION IN TOMATO ROOTS
Yazarlar:
Durmus CETIN
M. Aydın AKBUDAK
Chloroplasts, essential plant organelles, facilitate crucial metabolic functions like photosynthesis, largely dependent on iron (Fe), a vital cofactor in various redox reactions. The PIC1 (Permease In Chloroplasts 1) gene, encoding a transmembrane protein responsible for iron transport into chloroplasts, plays a significant role in maintaining iron homeostasis. This study examines the expression of the PIC1 gene in tomato under cold stress, marking the first investigation of its regulatory role in such conditions. Using RNA isolated from cold-treated tomato plants, gene expression analysis was conducted via RTqPCR. Results indicated a significant downregulation of the PIC1 gene in root tissues under cold stress, which likely impairs iron transport and chloroplast functionality. This adaptive response may play a role in managing iron homeostasis during environmental stress, affecting overall plant growth. These findings contribute to a deeper understanding of iron regulation under abiotic stress, offering insights into improving stress tolerance in crops through genetic modification or breeding.
