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Author Park C.H., Shirsekar G., Bellizzi M., Chen S., Songkumarn P., Xie X., Shi X., Ning Y., Zhou B., Suttiviriya P., Wang M., Umemura K., Wang G.L.
Title The E3 ligase APIP10 Connects the Effector AvrPiz-t to the NLR receptor Piz-t in Rice.
Abstract:
Although nucleotide-binding domain, leucine-rich repeat (NLR) proteins are the major immune receptors in plants, the mechanism that controls their activation and immune signaling remains elusive. Here, we report that the avirulence effector AvrPiz-t from Magnaporthe oryzae targets the rice E3 ligase APIP10 for degradation, but that APIP10, in return, ubiquitinates AvrPiz-t and thereby causes its degradation. Silencing of APIP10 in the non-Piz-t background compromises the basal defense against M. oryzae. Conversely, silencing of APIP10 in the Piz-t background causes cell death, significant accumulation of Piz-t, and enhanced resistance to M. oryzae, suggesting that APIP10 is a negative regulator of Piz-t. We show that APIP10 promotes degradation of Piz-t via the 26S proteasome system. Furthermore, we demonstrate that AvrPiz-t stabilizes Piz-t during M. oryzae infection. Together, our results show that APIP10 is a novel E3 ligase that functionally connects the fungal effector AvrPiz-t to its NLR receptor Piz-t in rice.
Journal PLoS Pathog.
Country USA
Volume 12(3)
Pages e1005529
Year 2016
PubMed ID 27031246
PubMed Central ID 4816579
DOI 10.1371/journal.ppat.1005529
URL -
Relation
Gene APIP10 KS4 PAL1 PIZT
INSD -
Strain Wild Core Collection -
Induced Mutation Lines(NIG Collection) -
Sterile Seed Strain -
Lethal Embryo
Mutantion Strain
-
Stages in Each Organ
- Muant Lines (Gene)
-
Cultivated Varieties(NIG Collection) -
Stages in Each Organ -
/rice/oryzabase