Brendan N. Kidd, Elizabeth A. Aitken, Peer M. Schenk, John M. Manners and Kemal Kazan

Brendan N. Kidd

Commonwealth Scientific and Industrial Research Organization, Plant Industry, Queensland Bioscience Precinct, St. Lucia; QL, Australia

Elizabeth A. Aitken

Commonwealth Scientific and Industrial Research Organization, Plant Industry, Queensland Bioscience Precinct, St. Lucia; QL, Australia

Peer M. Schenk

Commonwealth Scientific and Industrial Research Organization, Plant Industry, Queensland Bioscience Precinct, St. Lucia; QL, Australia

John M. Manners

Commonwealth Scientific and Industrial Research Organization, Plant Industry, Queensland Bioscience Precinct, St. Lucia; QL, Australia

Kemal Kazan

Corresponding author: kemal.kazan@csiro.au
Commonwealth Scientific and Industrial Research Organization, Plant Industry, Queensland Bioscience Precinct, St. Lucia; QL, Australia

Jasmonate (JA) signaling plays an important role in regulating both plant defense and development. We have recently reported that the PHYTOCHROME AND FLOWERING TIME1 (PFT1) gene, which encodes the MEDIATOR25 subunit of the plant Mediator complex, is a key regulator of JA regulated transcription. We showed that the pft1 mutant had attenuated expression of a wide range of JA responsive genes and altered resistance to fungal pathogens. Here we examine the position of PFT1/MED25 within the JA pathway and discuss its role in “mediating” the JA response.

Kidd BN, Edgar CI, Kumar KK, Aitken EA, Schenk PM, Manners JM, and Kazan K. The Mediator complex subunit PFT1 is a key regulator of jasmonate-dependent defense in Arabidopsis. Plant Cell 2009; 21:2237-52.