Mobility of the syntaxin PEN1 in Arabidopsis reflects functional specialization of the conserved SYP12 clade
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Mobility of the syntaxin PEN1 in Arabidopsis reflects functional specialization of the conserved SYP12 clade. / Liu, Mengqi; Rubiato, Hector M; Nielsen, Mads E.
In: Plant Signaling & Behavior, Vol. 17, No. 1, 2084278, 2022.Research output: Contribution to journal › Journal article › Research › peer-review
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TY - JOUR
T1 - Mobility of the syntaxin PEN1 in Arabidopsis reflects functional specialization of the conserved SYP12 clade
AU - Liu, Mengqi
AU - Rubiato, Hector M
AU - Nielsen, Mads E
PY - 2022
Y1 - 2022
N2 - Plant innate immunity toward cell-wall penetrating filamentous pathogens relies on the conserved SYP12 clade of secretory syntaxins. In Arabidopsis, the two closely related SYP12 clade members, PEN1 and SYP122, play an overlapping role in this general immunity, which can be complemented by two SYP12 clade members from Marchantia (MpSYP12A and MpSYP12B). However, in addition to the conserved SYP12 clade function, PEN1 alone mediates pre-invasive immunity toward powdery mildew fungi, which likely reflects a specialization of its functionality. Here, we show that the PEN1-specific specialization in immunity correlates with a continuous BFA-sensitive recycling and the ability to accumulate strongly at the growing cell plate. This contrasts with the behavior of SYP122, MpSYP12A, and MpSYP12B, all being more stable at the plasma membrane. We suggest that the highly mobile SYP12 specialization observed for PEN1 is required for a fast pre-invasive immune response to resist attack from powdery mildew fungi.
AB - Plant innate immunity toward cell-wall penetrating filamentous pathogens relies on the conserved SYP12 clade of secretory syntaxins. In Arabidopsis, the two closely related SYP12 clade members, PEN1 and SYP122, play an overlapping role in this general immunity, which can be complemented by two SYP12 clade members from Marchantia (MpSYP12A and MpSYP12B). However, in addition to the conserved SYP12 clade function, PEN1 alone mediates pre-invasive immunity toward powdery mildew fungi, which likely reflects a specialization of its functionality. Here, we show that the PEN1-specific specialization in immunity correlates with a continuous BFA-sensitive recycling and the ability to accumulate strongly at the growing cell plate. This contrasts with the behavior of SYP122, MpSYP12A, and MpSYP12B, all being more stable at the plasma membrane. We suggest that the highly mobile SYP12 specialization observed for PEN1 is required for a fast pre-invasive immune response to resist attack from powdery mildew fungi.
KW - Arabidopsis/metabolism
KW - Arabidopsis Proteins/metabolism
KW - Ascomycota/physiology
KW - Cell Wall/metabolism
KW - Plant Diseases/microbiology
KW - Qa-SNARE Proteins/genetics
U2 - 10.1080/15592324.2022.2084278
DO - 10.1080/15592324.2022.2084278
M3 - Journal article
C2 - 35695087
VL - 17
JO - Plant Signalling & Behavior
JF - Plant Signalling & Behavior
SN - 1559-2316
IS - 1
M1 - 2084278
ER -
ID: 310963785