Table 1.

HSP21 Promotes Carotenoid Accumulation in Developing Tomato Fruit

Distribution of Carotenoid (% of Total)
Days from Anthesis
Type of Carotenoid4050
ControlT4-311ControlT4-311
Phytoenen.d.n.d.12.612.4
Phytofluenen.d.n.d.7.46.4
β-Carotenen.d.n.d.9.51.0
ζ-Carotenen.d.n.d.1.61.2
γ-Carotenen.d.n.d.0.3n.d.
Neurosporenen.d.n.d.2.50.9
Lycopenen.d.n.d.61.677.4
Lutein86.887.24.30.7
Violaxanthin7.27.00.2n.d.
Neoxanthin6.05.8n.d.n.d.
Total carotenoid (μg/g FW)1.73 ± 0.492.21 ± 0.293.81 ± 1.5244.4 ± 1.0
  • Flowers of the control VF36 and one T4 transgenic line (T4-311) were labeled at anthesis, and after 40 and 50 d, carotenoids were extracted, measured with a spectrophotometer, and analyzed by HPLC. Results are average values of four different fruits. n.d., not detected.