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Comparative transcriptome revealed the molecular responses of Aconitum carmichaelii Debx. to downy mildew at different stages of disease development
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Comparative transcriptome revealed the molecular responses of Aconitum carmichaelii Debx. to downy mildew at different stages of disease development
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Journal Article
Comparative transcriptome revealed the molecular responses of Aconitum carmichaelii Debx. to downy mildew at different stages of disease development
2024
Overview
Background
Aconitum carmichaelii
Debx. has been widely used as a traditional medicinal herb for a long history in China. It is highly susceptible to various dangerous diseases during the cultivation process. Downy mildew is the most serious leaf disease of
A. carmichaelii
, affecting plant growth and ultimately leading to a reduction in yield
.
To better understand the response mechanism of
A. carmichaelii
leaves subjected to downy mildew, the contents of endogenous plant hormones as well as transcriptome sequencing were analyzed at five different infected stages.
Results
The content of 3-indoleacetic acid, abscisic acid, salicylic acid and jasmonic acid has changed significantly in
A. carmichaelii
leaves with the development of downy mildew, and related synthetic genes such as 9-cis-epoxycarotenoid dioxygenase and phenylalanine ammonia lyase were also significant for disease responses. The transcriptomic data indicated that the differentially expressed genes were primarily associated with plant hormone signal transduction, plant-pathogen interaction, the mitogen-activated protein kinase signaling pathway in plants, and phenylpropanoid biosynthesis. Many of these genes also showed potential functions for resisting downy mildew. Through weighted gene co-expression network analysis, the hub genes and genes that have high connectivity to them were identified, which could participate in plant immune responses.
Conclusions
In this study, we elucidated the response and potential genes of
A. carmichaelii
to downy mildew, and observed the changes of endogenous hormones content at different infection stages, so as to contribute to the further screening and identification of genes involved in the defense of downy mildew.
Publisher
BioMed Central,BioMed Central Ltd,Springer Nature B.V,BMC
Subject
9-cis-epoxycarotenoid dioxygenase
/ Ammonia
/ Analysis
/ Biomedical and Life Sciences
/ China
/ Gene Expression Regulation, Plant
/ Genes
/ Growth
/ Hormones
/ Kinases
/ Leaves
/ Mildew
/ mitogen-activated protein kinase
/ Multi-omics approaches for plant disease diagnosis
/ Plant Diseases - microbiology
/ Plant Growth Regulators - metabolism
/ Plants
