• Gene expression;
  • Lycopersicon esculentum;
  • nutrient starvation;
  • phosphate starvation-induced gene;
  • tomato

The expression of Ca2+-ATPase (LCA1) and H+-ATPase (LHA1) genes was analyzed in tomato (Lycopersicon esculentum) plants subjected to phosphate (Pi) starvation. The amount of LCA1 transcript increased significantly in tomato roots after 5 days of Pi starvation, whereas the transcript levels remained constant during this period in leaves. The LCA1 transcript level decreased when the Pi-starved plants were resupplied with phosphate. Our data suggest that the accumulation of LCA1 transcripts in roots is a response specific to Pi starvation. The levels of LHA1 transcript remained relatively constant even after 7 days of Pi starvation in both roots and leaves of tomato plants.