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- W1989650536 abstract "Summary Shade‐intolerant plants respond to low red : far‐red ( R : FR ) ratios, which signal the proximity of potential competitors, by down‐regulating immune responses. Here we investigated the mechanisms underlying this immune suppression in A rabidopsis. We used genetic, transcriptomic and metabolomic approaches to examine the functional connections between R : FR ratio and Arabidopsis resistance to the fungus B otrytis cinerea . Low R : FR ratios reduced the concentration of indol‐3‐ylmethyl glucosinolate (I3M) (an indolic glucosinolate, iGS ) and camalexin in plants inoculated with B . cinerea , and attenuated the I3M response triggered by jasmonate elicitation. These effects on metabolite abundance correlated with reduced expression of iGS and camalexin biosynthetic genes. Furthermore, the effect of low R : FR increasing A rabidopsis susceptibility to B . cinerea was not present in mutants deficient in the biosynthesis of camalexin ( pad3 ) or metabolism of iGS ( pen2 ). Finally, in a mutant deficient in the JASMONATE ZIM DOMAIN ‐10 ( JAZ 10) protein, which does not respond to low R : FR with increased susceptibility to B . cinerea , supplemental FR failed to down‐regulate iGS production. These results indicate that suppression of A rabidopsis immunity against B . cinerea by low R : FR ratios is mediated by reduced levels of Trp‐derived defenses, and provide further evidence for a functional role of JAZ 10 in the link between phytochrome and jasmonate signaling." @default.
- W1989650536 created "2016-06-24" @default.
- W1989650536 creator A5052381433 @default.
- W1989650536 creator A5061075007 @default.
- W1989650536 creator A5087745815 @default.
- W1989650536 date "2014-09-18" @default.
- W1989650536 modified "2023-10-09" @default.
- W1989650536 title "Linking phytochrome to plant immunity: low red : far-red ratios increase Arabidopsis susceptibility to<i>Botrytis cinerea</i>by reducing the biosynthesis of indolic glucosinolates and camalexin" @default.
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- W1989650536 doi "https://doi.org/10.1111/nph.13032" @default.
- W1989650536 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/25236170" @default.
- W1989650536 hasPublicationYear "2014" @default.
- W1989650536 type Work @default.