ArticleAnnals of botany2019
OsDCL1a activation impairs phytoalexin biosynthesis and compromises disease resistance in rice.
Article in Annals of botany, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers, 1 of them a synthesis that pooled it.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
11 citing papers in PubMed, 1 synthesis or guideline pooled it.
- Pathogenesis-related protein 10 in resistance to biotic stress: progress in elucidating functions, regulation and modes of action.Frontiers in plant science · 2023Pooled it
- Two Transcriptional Factors Antagonistically Fine-Tune MIR1863a to Balance Resistance and Yield Traits in Rice.Plant biotechnology journal · 2025Article
- Major components of RNAi gene families inHeliyon · 2024Article
- Rice breeding for low input agriculture.Frontiers in plant science · 2024Review
- An insight into microRNA biogenesis and its regulatory role in plant secondary metabolism.Plant cell reports · 2022Review
- Rice miR1432 Fine-Tunes the Balance of Yield and Blast Disease Resistance via Different Modules.Rice (New York, N.Y.) · 2021Article
- Contribution of Small RNA Pathway to Interactions of Rice with Pathogens and Insect Pests.Rice (New York, N.Y.) · 2021Review
- Blocking miR530 Improves Rice Resistance, Yield, and Maturity.Frontiers in plant science · 2021Article
- RNA-Sequencing in Resistant (QL3) and Susceptible (Theis) Sorghum Cultivars Inoculated With Johnsongrass Isolates ofFrontiers in genetics · 2021Article
- Osa-miR162a fine-tunes rice resistance to Magnaporthe oryzae and Yield.Rice (New York, N.Y.) · 2020Article
- Every Coin Has Two Sides: Reactive Oxygen Species during Rice⁻International journal of molecular sciences · 2019Review
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
6 authors.
Funding
Abstract
Background and Aims: MicroRNAs (miRNAs) are small non-coding RNAs that act as post-transcriptional regulators of gene expression via sequence-specific cleavage or translational repression of target transcripts. They are transcribed as long single-stranded RNA precursors with unique stem-loop structures that are processed by a DICER-Like (DCL) ribonuclease, typically DCL1, to produce mature miRNAs. Although a plethora of miRNAs have been found to be regulated by pathogen infection in plants, the biological function of most miRNAs remains largely unknown. Here, the contribution of OsDCL1 to rice immunity was investigated. Methods: Activation-tagged Osdcl1a (Osdcl1a-Ac) rice mutants were examined for resistance to pathogen infection. mRNA and small RNA deep sequencing, quantitative real-time PCR (RT-qPCR) and stem-loop reverse tanscripion-PCR (RT-PCR) were used to examine DCL1a-mediated alterations in the rice transcriptome. Rice diterpene phytoalexins were quantified by liquid chromatography-tandem mass spectrometry (LC-MSMS). Accumulation of O2·- was determined by nitroblue tetrazolium (NBT) staining. Key Results: dcl1a-Ac mutants exhibit enhanced susceptibility to infection by fungal pathogens which was associated with a weaker induction of defence gene expression. Comparison of the mRNA and miRNA transcriptomes of dcl1a-Ac and wild-type plants revealed misregulation of genes involved in detoxification of reactive oxygen species. Consequently, dcl1a-Ac plants accumulated O2·- in their leaves and were more sensitive to methyl viologen-induced oxidative stress. Furthermore, dcl1a-Ac plants showed downregulation of diterpenoid phytoalexin biosynthetic genes, these genes also being weakly induced during pathogen infection. Upon pathogen challenge, dcl1a-Ac plants failed to accumulate major diterpenoid phytoalexins. OsDCL1a activation resulted in marked alterations in the rice miRNAome, including both upregulation and downregulation of miRNAs. Conclusions: OsDCL1a activation enhances susceptibility to infection by fungal pathogens in rice. Activation of OsDCL1a represses the pathogen-inducible host defence response and negatively regulates diterpenoid phytoalexin production. These findings provide a basis to understand the molecular mechanisms through which OsDCL1a mediates rice immunity.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.