Phytocytokine StPep1-Secreting Bacteria Suppress Potato Powdery Scab Disease.
Phytopathology
; 114(9): 2055-2063, 2024 Sep.
Article
em En
| MEDLINE
| ID: mdl-38970808
ABSTRACT
Powdery scab is an important potato disease caused by the soilborne pathogen Spongospora subterranea f. sp. subterranea. Currently, reliable chemical control and resistant cultivars for powdery scab are unavailable. As an alternative control strategy, we propose a novel approach involving the effective delivery of a phytocytokine to plant roots by the rhizobacterium Bacillus subtilis. The modified strain is designed to secrete the plant elicitor peptide StPep1. In our experiments employing a hairy root system, we observed a significant reduction in powdery scab pathogen infection when we directly applied the StPep1 peptide. Furthermore, our pot assay, which involved pretreating potato roots with StPep1-secreting B. subtilis, demonstrated a substantial decrease in disease symptoms, including reduced root galling and fewer tuber lesions. These findings underscore the potential of engineered bacteria as a promising strategy for safeguarding plants against powdery scab.
Palavras-chave
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Doenças das Plantas
/
Ascomicetos
/
Bacillus subtilis
/
Solanum tuberosum
/
Raízes de Plantas
Idioma:
En
Ano de publicação:
2024
Tipo de documento:
Article