ArticlePlant molecular biology2003
Fungus- and wound-induced accumulation of mRNA containing a class II chitinase of the pathogenesis-related protein 4 (PR-4) family of maize.
Article in Plant molecular biology, 2003. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 43 papers.
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Who cites it
43 citing papers in PubMed, 106 citations in OpenAlex.
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- Deciphering maize resistance to late wilt disease caused byFrontiers in plant science · 2025Article
- A Zinc Polyphenolic Compound Increases Maize Resistance Against Infection byPlants (Basel, Switzerland) · 2024Article
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- Enhancing Resistance to Cercospora Leaf Spot in Mung BeanPlants (Basel, Switzerland) · 2024Article
- Genome-Wide Identification of a Maize Chitinase Gene Family and the Induction of Its Expression byGenes · 2024Article
- Overexpression of chitinaseVirulence · 2023Article
- Phylogenetic Analysis of thePlants (Basel, Switzerland) · 2023Article
- Root and Leaf Anatomy, Ion Accumulation, and Transcriptome Pattern under Salt Stress Conditions in Contrasting Genotypes ofPlants (Basel, Switzerland) · 2023Article
- Comparative Transcriptome Analysis of Onion in Response to Infection byFrontiers in plant science · 2022Article
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- Structural and Evolutionary Analyses of PR-4 SUGARWINs Points to a Different Pattern of Protein Function.Frontiers in plant science · 2021Article
- A New Active Substance Derived from LyzedPlants (Basel, Switzerland) · 2020Article
- The Apoplast: A Key Player in Plant Survival.Antioxidants (Basel, Switzerland) · 2020Review
- Review
- Molecular Mechanisms of Chitosan Interactions with Fungi and Plants.International journal of molecular sciences · 2019Review
- TheFrontiers in microbiology · 2019Review
- Survey of Candidate Genes for Maize Resistance to Infection by Aspergillus flavus and/or Aflatoxin Contamination.Toxins · 2018Article
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Authors and funding
5 authors at 3 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Pathogenesis-related (PR) proteins are plant proteins that are induced in response to pathogen attack. PR proteins are grouped into independent families based on their sequences and properties. The PR-4 family comprises class I and class II chitinases. We have isolated a full-length cDNA encoding a chitinase from maize which shares a high degree of nucleotide and amino acid sequence homology with the class II chitinases of the PR-4 family of PR proteins. Our results indicate that fungal infection, and treatment either with fungal elicitors or with moniliformin, a mycotoxin produced by the fungus Fusarium moniliforme, increase the level of ZmPR4 mRNA. In situ mRNA hybridization analysis in sections obtained from fungus-infected germinating embryos revealed that ZmPR4 mRNA accumulation occurs in those cell types that first establish contact with the pathogen. ZmPR4 mRNA accumulation is also stimulated by treatment with silver nitrate whereas the application of the hormones gibberellic acid or acetylsalicylic acid has no effect. Wounding, or treatment with abscisic acid or methyl jasmonate, results in accumulation of ZmPR4 mRNA in maize leaves. Furthermore, the ZmPR4 protein was expressed in Escherichia coli, purified and used to obtain polyclonal antibodies that specifically recognized ZmPR4 in protein extracts from fungus-infected embryos. Accumulation of ZmPR4 mRNA in fungus-infected maize tissues was accompanied by a significant accumulation of the corresponding protein. The possible implications of these findings as part of the general defence response of maize plants against pathogens are discussed.
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