Temporal and spatial expression patterns of the gene AtBSMT1 encoding a salicylic acid methyltransferase in arabidopsis transgenic plants

Sendon, Pamella Marie; Park, Jong-Beum; Seo, Hak Soo; Park, Soon Ki; Song, Jong Tae

doi:10.1007/s13765-012-2176-4

Cited by 1 publication

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References 12 publications

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“…To elucidate the molecular mechanisms underlying ANAC032mediated defence, we tested the expression of 123 defence-/stressrelated genes and 15 genes encoding UDP-glucosyl transferases (UGTs) in 6-week-old ANAC032 transgenic and WT plants after Pst infection (at 6 hpi) by qRT-PCR (quantitative real-time polymerase chain reaction). Genes included in the platform (Table EV1) were extracted from reports on previous studies on plant defence responses against invading pathogens, in particular Pseudomonas syringae [25,26,37,41,42]. All genes chosen are induced by Pst infection.…”

Section: Anac032 Activates the Sa-mediated Defence Response But Antag...mentioning

confidence: 99%

Transcription factor ANAC032 modulates JA/SA signalling in response to Pseudomonas syringae infection

et al. 2016

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Responses to pathogens, including host transcriptional reprogramming, require partially antagonistic signalling pathways dependent on the phytohormones salicylic (SA) and jasmonic (JA) acids. However, upstream factors modulating the interplay of these pathways are not well characterized. Here, we identify the transcription factor ANAC032 from Arabidopsis thaliana as one such regulator in response to the bacterial pathogen Pseudomonas syringae pv. tomato DC3000 (Pst). ANAC032 directly represses MYC2 activation upon Pst attack, resulting in blockage of coronatine-mediated stomatal reopening which restricts entry of bacteria into plant tissue. Furthermore, ANAC032 activates SA signalling by repressing NIMIN1, a key negative regulator of SA-dependent defence. Finally, ANAC032 reduces expression of JA-responsive genes, including PDF1.2A Thus, ANAC032 enhances resistance to Pst by generating an orchestrated transcriptional output towards key SA- and JA-signalling genes coordinated through direct binding of ANAC032 to the MYC2, NIMIN1 and PDF1.2A promoters.

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Section: Anac032 Activates the Sa-mediated Defence Response But Antag...mentioning

confidence: 99%

Transcription factor ANAC032 modulates JA/SA signalling in response to Pseudomonas syringae infection

et al. 2016

View full text Add to dashboard Cite

show abstract

Temporal and spatial expression patterns of the gene AtBSMT1 encoding a salicylic acid methyltransferase in arabidopsis transgenic plants

Cited by 1 publication

References 12 publications

Transcription factor ANAC032 modulates JA/SA signalling in response to Pseudomonas syringae infection

Transcription factor ANAC032 modulates JA/SA signalling in response to Pseudomonas syringae infection

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