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This model shows how XopP manipulates the exocytosis via associating with members of the subcomplex II of the exocyst, most likely by affecting its proper assembly into a functional complex.
.
We found that XopP, a core effector protein of Xanthomonas, interacts with host Exo70-like ID, but does not activate host immunity
.
Our further study showed that XopP interacts directly with a member of the host exocapsule complex, Exo70B1
.
In Big Tobacco, Little Tobacco, and Arabidopsis thaliana cells, XopP blocks exocytosis of many plant immune molecules, including pathogenesis-related protein-1A (PR1a), the transmembrane immune receptor FLS2, and calloplasm
.
Recently, the Panagiotis F Sarris research group at the University of Crete in Greece published an online publication titled The host exocyst complex is targeted by a conserved bacterial type-III online at The Plant Cell Effector that promotes virulence's research paper, found in Xanthomonas
Ability to attack the host exocapsule complex and disrupt host immunity
.
This model shows how XopP manipulates the exocytosis via associating with members of the subcomplex II of the exocyst, most likely by affecting its proper assembly into a functional complex.
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Many plant pathogen bacteria use the type-III secretion system to secrete effector proteins into the cytoplasm of host plant cells, thereby promoting pathogenicity
.
As a defense against pathogen invasion, plants have evolved intracellular Nod-like receptors (NLRs) that recognize pathogen effector proteins and activate host immunity
.
Some plant NLRs contain atypical protein domains, also known as integrated domains (IDs), which act as bait for pathogen effector proteins
.
IDs as bait may originate from the replication of the true target proteins of these effector proteins in host cells.
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learn
ask
title
What components of the host are attacked by pathogen effector proteins? What is the mechanism by which the interaction between target and effector proteins mediates pathogenicity? What important physiological processes in the host plant are disrupted by effector proteins?
grind
investigate
hair
appear
.
We found that XopP, a core effector protein of Xanthomonas, interacts with host Exo70-like ID, but does not activate host immunity
.
Our further study showed that XopP interacts directly with a member of the host exocapsule complex, Exo70B1
.
In Big Tobacco, Little Tobacco, and Arabidopsis thaliana cells, XopP blocks exocytosis of many plant immune molecules, including pathogenesis-related protein-1A (PR1a), the transmembrane immune receptor FLS2, and calloplasm
.
Expression of the chimeric protein PR1sp–RFP–GFP in the absence or presence of XopP.
unfold
hope
not
come
We will then perform further screening to determine if XopP attacks other variants of EXO70
.
Through these studies, XopP will be a valuable tool to understand the interaction between effector protein-capsule complexes in plant disease resistance
.
This article is transferred from the public account of ThePlantCell, only for sharing and communication, without any commercial use
.
Click "Read Original" in the lower left corner to view the full text of
the paper.
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