ArticlePlanta2022
Iron redistribution induces oxidative burst and resistance in maize against Curvularia lunata.
Article in Planta, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
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Who cites it
7 citing papers in PubMed, 8 citations in OpenAlex.
- Integrated histochemical, biochemical, and ultrastructural analyses elucidate synergistic virulence mechanisms of Curvularia lunata in maize.Scientific reports · 2026Article
- Regulation of maize growth and immunity by ZmSKI3-mediated RNA decay and post-transcriptional gene silencing.Journal of integrative plant biology · 2024Article
- Transcriptome Analysis Revealed ZmPTOX1 Is Required for Seedling Development and Stress Tolerance in Maize.Plants (Basel, Switzerland) · 2024Article
- SreC-dependent adaption to host iron environments regulates the transition of trophic stages and developmental processes of Curvularia lunata.Molecular plant pathology · 2024Article
- Transcriptomic and functional analyses reveal the molecular mechanisms underlying Fe-mediated tobacco resistance to potato virus Y infection.Frontiers in plant science · 2023Article
- Iron Induces Resistance Against the Rice Blast Fungus Magnaporthe oryzae Through Potentiation of Immune Responses.Rice (New York, N.Y.) · 2022Article
- Gene expression, molecular docking, and molecular dynamics studies to identify potential antifungal compounds targeting virulence proteins/genes VelB and THR as possible drug targets againstFrontiers in molecular biosciences · 2022Article
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Authors and funding
7 authors at 1 institution in 1 country.
Funding
Abstract
MAIN
conclusionΔClnps6 induced iron redistribution in maize B73 leaf cells and resulted in reactive oxygen species (ROS) burst to enhance plant resistance against Curvularia lunata. Iron is an indispensable co-factor of various crucial enzymes that are involved in cellular metabolic processes and energy metabolism in eukaryotes. For this reason, plants and pathogens compete for iron to maintain their iron homeostasis, respectively. In our previous study, ΔClnps6, the extracellular siderophore biosynthesis deletion mutant of Curvularia lunata, was sensitive to exogenous hydrogen peroxide and virulence reduction. However, the mechanism was not studied. Here, we report that maize B73 displayed highly resistance to ΔClnps6. The plants recruited more iron at cell wall appositions (CWAs) to cause ROS bursts. Intracellular iron deficiency induced by iron redistribution originated form up-regulated expression of genes involved in intracellular iron consumption in leaves and absorption in roots. The RNA-sequencing data also showed that the expression of respiratory burst oxidase homologue (ZmRBOH4) and NADP-dependent malic enzyme 4 (ZmNADP-ME4) involved in ROS production was up-regulated in maize B73 after ΔClnps6 infection. Simultaneously, jasmonic acid (JA) biosynthesis genes lipoxygenase (ZmLOX), allene oxide synthase (ZmAOS), GA degradation gene gibberellin 2-beta-dioxygenase (ZmGA2OX6) and ABA degradation genes abscisic acid hydroxylase (ZmABH1, ZmABH2) involved in iron homeostasis were up-regulated expression. Ferritin1 (ZmFER1) positive regulated maize resistance against C. lunata via ROS burst under Fe-limiting conditions. Overall, our results showed that iron played vital roles in activating maize resistance in B73-C. lunata interaction.
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