Spermine deficiency shifts the balance between jasmonic acid and salicylic acid-mediated defence responses in Arabidopsis
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Metadatos
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INVESTIGACIONMetadatos
Título
Spermine deficiency shifts the balance between jasmonic acid and salicylic acid-mediated defence responses in ArabidopsisAutoría
Fecha de publicación
2023-08-31Editor
WileyISSN
0140-7791; 1365-3040Cita bibliográfica
Zhang, C., Atanasov, K.E., Murillo, E., Vives-Peris, V., Zhao, J., Deng, C. et al. (2023) Spermine deficiency shifts the balance between jasmonic acid and salicylic acid-mediated defence responses in Arabidopsis. Plant, Cell & Environment, 46, 3949–3970.Tipo de documento
info:eu-repo/semantics/articleVersión
info:eu-repo/semantics/publishedVersionPalabras clave / Materias
Resumen
Polyamines are small aliphatic polycations present in all living organisms. In plants, the most abundant polyamines are putrescine (Put), spermidine (Spd) and spermine (Spm). Polyamine levels change in response to ... [+]
Polyamines are small aliphatic polycations present in all living organisms. In plants, the most abundant polyamines are putrescine (Put), spermidine (Spd) and spermine (Spm). Polyamine levels change in response to different pathogens, including Pseudomonas syringae pv. tomato DC3000 (Pst DC3000). However, the regulation of polyamine metabolism and their specific contributions to defence are not fully understood. Here we report that stimulation of Put biosynthesis by Pst DC3000 is dependent on coronatine (COR) perception and jasmonic acid (JA) signalling, independently of salicylic acid (SA). Conversely, lack of Spm in spermine synthase (spms) mutant stimulated galactolipids and JA biosynthesis, and JA signalling under basal conditions and during Pst DC3000 infection, whereas compromised SA-pathway activation and defence outputs through SA–JA antagonism. The dampening of SA responses correlated with COR and Pst DC3000-inducible deregulation of ANAC019 expression and its key SA-metabolism gene targets. Spm deficiency also led to enhanced disease resistance to the necrotrophic fungal pathogen Botrytis cinerea and stimulated endoplasmic reticulum (ER) stress signalling in response to Pst DC3000. Overall, our findings provide evidence for the integration of polyamine metabolism in JA- and SA-mediated defence responses, as well as the participation of Spm in buffering ER stress during defence. [-]
Publicado en
Plant, Cell & Environment, Vol. 46, Issue 12 (December 2023)Entidad financiadora
Ministerio de Ciencia e Innovación, Agencia Estatal de Investigación (AEI/10.13039/501100011033) | Generalitat Valenciana
Código del proyecto o subvención
PID2021-126896OB-I00 | PDC2021-121267-I00 | CIAICO/2021/063
Derechos de acceso
info:eu-repo/semantics/openAccess
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