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Transcriptomic Profiling of Quinoa Reveals Distinct Defense Responses to Exogenous Methyl Jasmonate and Salicylic Acid

Rollano-Peñaloza, Oscar M LU ; Neyrot, Sara ; Bravo Barrera, Jose A ; Mollinedo, Patricia LU and Rasmusson, Allan G LU orcid (2025) In Plants 14(11).
Abstract

Plant defense responses are mediated by hormones such as jasmonic acid (JA) and salicylic acid (SA). JA and SA are known to trigger a range of different defense responses in model plants but little is described in crops like quinoa. Here, we present the first molecular description of JA and SA signaling at the transcriptomic level in quinoa. The transcriptomes of quinoa cv. Kurmi seedlings treated with 100 µM methyl JA or 1 mM SA for 4 h were analyzed, using on average 4.1 million paired-end reads per sample. Quinoa plants treated with JA showed 1246 differentially expressed (DE) genes and plants treated with SA showed 590 DE genes. The response to JA included the induction of genes for the biosynthesis of JA (8/8 genes) and lignin... (More)

Plant defense responses are mediated by hormones such as jasmonic acid (JA) and salicylic acid (SA). JA and SA are known to trigger a range of different defense responses in model plants but little is described in crops like quinoa. Here, we present the first molecular description of JA and SA signaling at the transcriptomic level in quinoa. The transcriptomes of quinoa cv. Kurmi seedlings treated with 100 µM methyl JA or 1 mM SA for 4 h were analyzed, using on average 4.1 million paired-end reads per sample. Quinoa plants treated with JA showed 1246 differentially expressed (DE) genes and plants treated with SA showed 590 DE genes. The response to JA included the induction of genes for the biosynthesis of JA (8/8 genes) and lignin (10/11 genes), and displayed a strong association with treatments with Trichoderma biocontrol agents. The SA treatment triggered the upregulation of genes for the biosynthesis of monoterpenoids and glucosinolates, both having defense properties. Overall, this suggest that JA and SA promotes the biosynthesis of lignin polymers and chemical defense compounds, respectively. Overall, the DE genes identified can be used as molecular markers in quinoa for tracking plant-hormone pathway involvements in defense responses.

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author
; ; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Plants
volume
14
issue
11
pages
18 pages
publisher
MDPI AG
external identifiers
  • scopus:105007734951
  • pmid:40508382
ISSN
2223-7747
DOI
10.3390/plants14111708
language
English
LU publication?
yes
id
ad672529-a009-41ad-b04a-9c5de60f68e5
date added to LUP
2025-12-01 14:29:33
date last changed
2025-12-30 06:35:50
@article{ad672529-a009-41ad-b04a-9c5de60f68e5,
  abstract     = {{<p>Plant defense responses are mediated by hormones such as jasmonic acid (JA) and salicylic acid (SA). JA and SA are known to trigger a range of different defense responses in model plants but little is described in crops like quinoa. Here, we present the first molecular description of JA and SA signaling at the transcriptomic level in quinoa. The transcriptomes of quinoa cv. Kurmi seedlings treated with 100 µM methyl JA or 1 mM SA for 4 h were analyzed, using on average 4.1 million paired-end reads per sample. Quinoa plants treated with JA showed 1246 differentially expressed (DE) genes and plants treated with SA showed 590 DE genes. The response to JA included the induction of genes for the biosynthesis of JA (8/8 genes) and lignin (10/11 genes), and displayed a strong association with treatments with Trichoderma biocontrol agents. The SA treatment triggered the upregulation of genes for the biosynthesis of monoterpenoids and glucosinolates, both having defense properties. Overall, this suggest that JA and SA promotes the biosynthesis of lignin polymers and chemical defense compounds, respectively. Overall, the DE genes identified can be used as molecular markers in quinoa for tracking plant-hormone pathway involvements in defense responses.</p>}},
  author       = {{Rollano-Peñaloza, Oscar M and Neyrot, Sara and Bravo Barrera, Jose A and Mollinedo, Patricia and Rasmusson, Allan G}},
  issn         = {{2223-7747}},
  language     = {{eng}},
  month        = {{06}},
  number       = {{11}},
  publisher    = {{MDPI AG}},
  series       = {{Plants}},
  title        = {{Transcriptomic Profiling of Quinoa Reveals Distinct Defense Responses to Exogenous Methyl Jasmonate and Salicylic Acid}},
  url          = {{http://dx.doi.org/10.3390/plants14111708}},
  doi          = {{10.3390/plants14111708}},
  volume       = {{14}},
  year         = {{2025}},
}