serval:BIB_CB93CC808479
The Arabidopsis Lectin Receptor Kinase LecRK-I.8 Is Involved in Insect Egg Perception.
10.3389/fpls.2019.00623
000467688200001
31134123
Gouhier-Darimont
C.
author
Stahl
E.
author
Glauser
G.
author
Reymond
P.
author
article
2019
Frontiers in Plant Science
1664-462X
1664-462X
journal
10
623
Plants induce defense responses after insect egg deposition, but very little is known about the perception mechanisms. In Arabidopsis thaliana, eggs of the specialist insect Pieris brassicae trigger accumulation of reactive oxygen species (ROS) and salicylic acid (SA), followed by induction of defense genes and localized necrosis. Here, the involvement of the clade I L-type lectin receptor kinase LecRK-I.8 in these responses was studied. Expression of LecRK-I.8 was upregulated at the site of P. brassicae oviposition and egg extract (EE) treatment. ROS, SA, cell death, and expression of PR1 were substantially reduced in the Arabidopsis knock-out mutant lecrk-I.8 after EE treatment. In addition, EE-induced systemic resistance against Pseudomonas syringae was abolished in lecrk-I.8. Expression of ten clade I homologs of LecRK-I.8 was also induced by EE treatment, but single mutants displayed only weak alteration of EE-induced PR1 expression. These results demonstrate that LecRK-I.8 is an early component of egg perception.
Arabidopsis thaliana
PR1 expression
Pieris brassicae
herbivory
lectin-like receptor kinase
oviposition
eng
60_published
true
peer-reviewed
University of Lausanne
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