2024-03-29T05:10:12Z
https://u-ryukyu.repo.nii.ac.jp/oai
oai:u-ryukyu.repo.nii.ac.jp:02019623
2023-08-03T05:36:16Z
1642838163960:1642838338003
1642838403551:1642838406414
The atypical E2F transcription factor DEL1 modulates growth-defense tradeofs of host plants during root-knot nematode infection
Nakagami, Satoru
Saeki, Kentaro
Toda, Kei
Ishida, Takashi
Sawa, Shinichiro
In plants, growth–defense tradeofs are essential for optimizing plant performance and adaptation under stress conditions, such as pathogen attack. Root-knot nematodes (RKNs) cause severe economic losses in many crops worldwide, although little is known about the mechanisms that control plant growth and defense responses during nematode attack. Upon investigation of Arabidopsis thaliana infected with RKN (Meloidogyne incognita), we observed that the atypical transcription factor DP-E2F-like 1 (DEL1) repressed salicylic acid (SA) accumulation in RKN-induced galls. The DEL1-defcient Arabidopsis mutant (del1-1) exhibited excessive SA accumulation in galls and is more resistant to RKN infection. In addition, excessive lignifcation was observed in galls of del1-1. On the other hand, the root growth of del1-1 is reduced after RKN infection. Taken together, these fndings suggest that DEL1 plays an important role in the balance between plant growth and defense responses to RKN infection by controlling SA accumulation and lignifcation.
http://purl.org/coar/resource_type/c_6501
Nature Research
2020-06-01
VoR
2045-2322
Scientific Reports
10
eng
https://doi.org/10.1038/s41598-020-65733-3
open access
© The Author(s) 2020
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