Primary evidence for involvement of IP3 in heat-shock signal transduction in Arabidopsis

@article{Liu2006PrimaryEF,
  title={Primary evidence for involvement of IP3 in heat-shock signal transduction in Arabidopsis},
  author={Hong Liu and Fei Gao and Shu Juan Cui and Jin Han and D. Y. Sun and Ren Gang Zhou},
  journal={Cell Research},
  year={2006},
  volume={16},
  pages={394-400}
}
The role of inositol 1,4,5-trisphosphate (IP3) in transducing heat-shock (HS) signals was examined in Arabidopsis. The whole-plant IP3 level increased within 1 min of HS at 37 °C. After 3 min of HS, the IP3 level reached a maximum 2.5 fold increase. Using the transgenic Arabidopsis plants that have AtHsp18.2 promoter-β-glucuronidase (GUS) fusion gene, it was found that the level of GUS activity was up-regulated by the addition of caged IP3 at both non-HS and HS temperatures and was down… CONTINUE READING