Detection of abiotic stress – Summary

This chapter introduces two patent families, both filed by Syngenta Participations AG, that used microarray technology to identify polynucleotide sequences that have altered expression in a plant that has been exposed to cold, saline, or osmotic stress (or combinations of the stresses).  There are several differences between the two patent families:

Patent family Assignee Subject plant * Claim structure
WO 2002/016655 The Scripps Research Institute
Syngenta Participations AG
Rice
  • Method to identify stress conditions in plants
WO 2003/008540 Syngenta Participations AG Arabidopsis thaliana
  • Isolated polynucleotides and polypeptides
  • Method to identify stress conditions in plants
  • Method for altering tolerance of a plant to stress

* The plants in this column were used to identify polynucleotides and polypeptides of interest, however the claims in the patent documents are not limited to them.

Both patent families contain claims that are generally drawn towards use of the stress-responsive regulatory elements (nucleotide sequence that affects transcription of the corresponding coding region) to create sentinel plants that can detect presence of stress