Plasmodesmata Localizing Proteins Regulate Transport and Signaling during Systemic Acquired Immunity in Plants.

@article{Lim2016PlasmodesmataLP,
  title={Plasmodesmata Localizing Proteins Regulate Transport and Signaling during Systemic Acquired Immunity in Plants.},
  author={Gah-Hyun Lim and M. B. Shine and Laura de Lorenzo and Keshun Yu and Weier Cui and Duroy A. Navarre and Arthur G Hunt and Jung-Youn Lee and Aardra Kachroo and Pradeep Kachroo},
  journal={Cell host & microbe},
  year={2016},
  volume={19 4},
  pages={541-9}
}
Systemic acquired resistance (SAR) in plants is mediated by the signaling molecules azelaic acid (AzA), glycerol-3-phosphate (G3P), and salicylic acid (SA). Here, we show that AzA and G3P transport occurs via the symplastic route, which is regulated by channels known as plasmodesmata (PD). In contrast, SA moves via the extracytosolic apoplast compartment. We found that PD localizing proteins (PDLP) 1 and 5 were required for SAR even though PD permeability in pdlp1 and 5 mutants was comparable… CONTINUE READING
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