Extracellular DNA induces resistance against Frankliniella occidentalis through callose accumulation
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Otros documentos de la autoría: Rassizadeh, Leila; Cañadas, Estela; Cervero, Raquel; Flors, Victor; Gamir, Jordi
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Título
Extracellular DNA induces resistance against Frankliniella occidentalis through callose accumulationFecha de publicación
2024-01-10Editor
SpringerISSN
1612-4758; 1612-4766Cita bibliográfica
Rassizadeh, L., Cañadas, E., Cervero, R. et al. Extracellular DNA induces resistance against Frankliniella occidentalis through callose accumulation. J Pest Sci (2024). https://doi.org/10.1007/s10340-023-01733-2Tipo de documento
info:eu-repo/semantics/articleVersión
info:eu-repo/semantics/publishedVersionPalabras clave / Materias
Resumen
The plant immune system has evolved to sense and respond to potential threats. When an insect attacks a plant, endogenous
molecules called damage-associated molecular patterns (DAMPs) are released into the apoplast, ... [+]
The plant immune system has evolved to sense and respond to potential threats. When an insect attacks a plant, endogenous
molecules called damage-associated molecular patterns (DAMPs) are released into the apoplast, triggering a cascade of
intracellular signals. Extracellular DNA (eDNA) is a DAMP signal which activates the plant’s immune responses. However, our understanding of whether the detection of eDNA can lessen the damage caused by herbivores is still restricted.
Here, we demonstrate that eDNA treatment in Arabidopsis leaves induced plant resistance against the herbivorous insect
Frankliniella occidentalis without compromising the plant’s growth. The number of leaves, rosette diameter, fresh weight,
and other growth-related parameters in eDNA-treated plants was comparable to water-treated plants. Besides, eDNA treatment reduced the feeding symptoms of F. occidentalis on Arabidopsis leaves. We further found that enhanced resistance in
eDNA-treated plants was accompanied by callose accumulation in the afected area, and using the callose-defcient mutant
pmr4-1, we demonstrated the positive role of callose in eDNA-induced resistance (eDNA-IR). Additionally, the induction in
the jasmonic acid (JA)-signaling marker genes LOX2 and AOS, and the higher accumulation of Jasmonyl-isoleucine (JA-Ile)
and JA revealed the role of jasmonates in eDNA-IR. Finally, we demonstrated that the JA signaling mediates callose deposition in eDNA-treated plants by using the JA response mutant jar1-1. These results advance our knowledge of the ability of
eDNA to trigger plant resistance and the underlying mechanisms involved in eDNA-IR. [-]
Datos relacionados
https://static-content.springer.com/esm/art%3A10.1007%2Fs10340-023-01733-2/MediaObjects/10340_2023_1733_MOESM1_ESM.docxEntidad financiadora
Gobierno de España | Ministerio de Ciencia, Innovación y Universidades | Universitat Jaume I | Generalitat Valenciana
Código del proyecto o subvención
PID2020-118787RA-I00 | UJI-A2022-16 | CDEIGENT/2018/015
Derechos de acceso
© The Author(s) 2024
info:eu-repo/semantics/openAccess
info:eu-repo/semantics/openAccess
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