The OsICS1 is directly regulated by OsWRKY6 and increases resistance against Xanthomonas oryzae pv. oryzae.
Xoo
Isochorismate synthase
OsICS1
OsWRKY6
Rice
Salicylic acid
Journal
Planta
ISSN: 1432-2048
Titre abrégé: Planta
Pays: Germany
ID NLM: 1250576
Informations de publication
Date de publication:
17 Apr 2024
17 Apr 2024
Historique:
received:
24
01
2024
accepted:
03
04
2024
medline:
17
4
2024
pubmed:
17
4
2024
entrez:
17
4
2024
Statut:
epublish
Résumé
OsICS1 but not OsICS1-L mediates the rice response to Xoo inoculation, with its overexpression increasing resistance against this pathogen. OsICS1 but not OsICS-L is directly upregulated by OsWRKY6. Rice (Oryza sativa) is a staple crop for about half of the global population and is particularly important in the diets of people living in Asia, Latin America, and Africa. This crop is continually threatened by bacterial leaf blight disease caused by Xanthomonas oryzae pv. oryzae (Xoo), which drastically reduces yields; therefore, it is needed to elucidate the plant's resistance mechanisms against Xoo. Isochorismate synthase (ICS1) generates salicylic acid (SA) and increases resistance against bacterial disease. The OsICS1 is differently annotated in rice genome databases and has not yet been functionally characterized in the context of Xoo infection. Here, we report that the expression of the OsICS1 is directly regulated by OsWRKY6 and increases plant resistance against Xoo. Inoculation with Xoo increased the expression of OsICS1 but not that of the long variant of OsICS1 (OsICS1-L). OsWRKY6 directly activated the OsICS1 promoter but not the OsICS1-L promoter. OsICS1 overexpression in rice increased resistance against Xoo through the induction of SA-dependent bacterial defense genes. These data show that OsICS1 promotes resistance against Xoo infection.
Identifiants
pubmed: 38630137
doi: 10.1007/s00425-024-04405-2
pii: 10.1007/s00425-024-04405-2
doi:
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
124Subventions
Organisme : Regional Innovation Strategy
ID : 2023RIS-009
Organisme : National Research Foundation of Korea
ID : RS-2023-00262576
Organisme : Research Program for Agricultural Science & Technology Development
ID : PJ01246303
Informations de copyright
© 2024. The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature.
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