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- W2155347897 abstract "Summary Herbivore attack elicits changes in cytokinins ( CK s), but how these changes influence defense signaling remains poorly described. We investigated the influence of the CK pathway on the well‐described inducible defense pathways of Nicotiana attenuata in response to wounding with and without elicitors from the specialist herbivore Manduca sexta . CK pathway manipulation often suffers from substantial side effects on plant growth and development. We therefore used multiple manipulation tools including spray application of CK s, chemically‐inducible expression of the CK biosynthesis enzyme isopentenyltransferase, and transient and constitutive RNA i‐mediated gene silencing of CK receptors to resolve the function of CK s in plant defense. The results demonstrated that CK concentrations in leaves and perception through CHASE‐DOMAIN CONTAINING HIS KINASE 2 (NaCHK2) and N a CHK 3 were important for the accumulation of jasmonic acid ( JA ) and phenolamides and proteinase inhibitor activity. By contrast, the CK pathway did not promote the accumulation of the active JA ‐isoleucine conjugate and negatively regulated the release of specific green leaf volatile esters. Interestingly, CK signaling also promotes the systemic phenolamide accumulation. We conclude that the CK pathway is an important regulator of herbivory‐inducible defense signaling and chemistry, which expands its reported participation in adjusting a plant's physiology to abiotic and biotic stress responses." @default.
- W2155347897 created "2016-06-24" @default.
- W2155347897 creator A5007762483 @default.
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- W2155347897 creator A5022613359 @default.
- W2155347897 creator A5068391722 @default.
- W2155347897 creator A5082212093 @default.
- W2155347897 date "2015-04-28" @default.
- W2155347897 modified "2023-10-11" @default.
- W2155347897 title "Cytokinin concentrations and CHASE‐DOMAIN CONTAINING HIS KINASE 2 (NaCHK2)‐ and <scp>N</scp>a<scp>CHK</scp>3‐mediated perception modulate herbivory‐induced defense signaling and defenses in <i><scp>N</scp>icotiana attenuata</i>" @default.
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