August 26, 2019 – Our short communication article entitled “Transcriptomic perspective on extracellular ATP signaling: a few curious trifles” was published in Plant Signaling & Behavior.
How to cite:
Jewell JB, Tanaka K (2019) Transcriptomic perspective on extracellular ATP signaling: a few curious trifles. Plant Signaling & Behavior 14: e1659079 doi:10.1080/15592324.2019.1659079
Abstract:
Extracellular ATP is perceived by the purinoceptor P2K1, leading to induction of defense response in plants. Previously, we described the transcriptomic response to extracellular ATP in wild-type Arabidopsis seedlings and mutants of classical defense hormone signaling pathways (Jewell et al., 2019, Plant Physiol. 179: 1144–58), in which extracellular ATP was found to induce defense-related genes independently and also along with other defense signaling pathways. In the present study, we provide further analysis and discussion of the data that we neglected to describe in the previous transcriptomics report. Briefly, we describe transcriptomic differences between a P2K1 knockout mutant (dorn1) and wild-type seedlings in the absence of exogenous ATP as well as an analysis of genes more responsive to extracellular ATP in a P2K1 overexpression line. Finally, we describe an exaggerated response to extracellular ATP in the ein2 mutant and suggest testable explanations of this phenomenon.