TY - JOUR
T1 - A class III peroxidase PRX34 is a component of disease resistance in Arabidopsis
AU - Zhao, Lei
AU - Phuong, Le Thi
AU - Luan, Mai Thanh
AU - Fitrianti, Aprilia Nur
AU - Matsui, Hidenori
AU - Nakagami, Hirofumi
AU - Noutoshi, Yoshiteru
AU - Yamamoto, Mikihiro
AU - Ichinose, Yuki
AU - Shiraishi, Tomonori
AU - Toyoda, Kazuhiro
N1 - Funding Information:
We acknowledge Prof. Dr. Shinji Tsuyumu (Laboratory of Plant Pathology, Faculty of Agriculture, Shizuoka University, Shizuoka, Japan) for generously providing Pectobacterium carotovorum subsp. carotovorum strain Pc1. This research was supported in part by the Grants-in-Aid for Scientific Research (18K05645) from the Japan Society for Promotion of Science (JSPS).
PY - 2019/11/1
Y1 - 2019/11/1
N2 - PRX34 mediates the oxidative burst in Arabidopsis. Here we characterized two additional Arabidopsis prx34 null mutants (prx34-2, prx34-3), besides the well-studied prx34-1. Due to a decrease in corresponding peroxidase, the activity that generates reactive oxygen species (ROS) was significantly lower in cell wall extracts of prx34-2 and prx34-3 plants. Consistently, the prx34-2 and prx34-3 exhibited reduced accumulation both of ROS and callose in Flg22-elicitor-treated leaves, leading to enhanced susceptibility to bacterial and fungal pathogens. In contrast, ectopic expression of PRX34 in the wild type caused enhanced resistance. PRX34 is thus a component for disease resistance in Arabidopsis.
AB - PRX34 mediates the oxidative burst in Arabidopsis. Here we characterized two additional Arabidopsis prx34 null mutants (prx34-2, prx34-3), besides the well-studied prx34-1. Due to a decrease in corresponding peroxidase, the activity that generates reactive oxygen species (ROS) was significantly lower in cell wall extracts of prx34-2 and prx34-3 plants. Consistently, the prx34-2 and prx34-3 exhibited reduced accumulation both of ROS and callose in Flg22-elicitor-treated leaves, leading to enhanced susceptibility to bacterial and fungal pathogens. In contrast, ectopic expression of PRX34 in the wild type caused enhanced resistance. PRX34 is thus a component for disease resistance in Arabidopsis.
KW - Apoplastic oxidative burst
KW - Arabidopsis
KW - Cell wall
KW - Class III peroxidase
KW - PRX34
KW - Reactive oxygen species (ROS)
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U2 - 10.1007/s10327-019-00863-9
DO - 10.1007/s10327-019-00863-9
M3 - Article
AN - SCOPUS:85066977838
VL - 85
SP - 405
EP - 412
JO - Journal of General Plant Pathology
JF - Journal of General Plant Pathology
SN - 1345-2630
IS - 6
ER -