ArticlePlant physiology2003
Isolation and properties of floral defensins from ornamental tobacco and petunia.
Article in Plant physiology, 2003. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 84 papers.
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Who cites it
84 citing papers in PubMed, 221 citations in OpenAlex.
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- Groundbreaking Technologies and the Biocontrol of Fungal Vascular Plant Pathogens.Journal of fungi (Basel, Switzerland) · 2025Review
- Antimicrobial Plant Peptides: Structure, Classification, Mechanism and Therapeutic Potential.Current topics in medicinal chemistry · 2025Review
- Natural Source-Derived Compounds with Antifungal Activity Against Medically Relevant Fungi.Infection and drug resistance · 2025Review
- Peptides from plants and microorganisms: a defense strategy for biotic and abiotic stresses.Frontiers in plant science · 2025Review
- Plant Antimicrobial Peptides and Their Main Families and Roles: A Review of the Literature.Current issues in molecular biology · 2024Review
- Expression of a novel NaD1 recombinant antimicrobial peptide enhances antifungal and insecticidal activities.Scientific reports · 2024Article
- Characterization and functional analysis of gerberaaBIOTECH · 2024Article
- Fighting pathogenic yeasts with plant defensins and anti-fungal proteins from fungi.Applied microbiology and biotechnology · 2024Review
- Hyperpolarisation of Mitochondrial Membranes Is a Critical Component of the Antifungal Mechanism of the Plant Defensin, Ppdef1.Journal of fungi (Basel, Switzerland) · 2024Article
- The Plant Defensin Ppdef1 Is a Novel Topical Treatment for Onychomycosis.Journal of fungi (Basel, Switzerland) · 2023Article
- Plant-based production of an orally active cyclotide for the treatment of multiple sclerosis.Transgenic research · 2023Article
- Mechanisms of Antimicrobial Peptides from Bagasse against Human Pathogenic Bacteria.Antibiotics (Basel, Switzerland) · 2023Article
- Novel insights into plant defensin ingestion induced metabolic responses in the polyphagous insect pest Helicoverpa armigera.Scientific reports · 2023Article
- Antimicrobial Peptides with Anti-International journal of molecular sciences · 2022Review
- Use of Defensins to Develop Eco-Friendly Alternatives to Synthetic Fungicides to Control Phytopathogenic Fungi and Their Mycotoxins.Journal of fungi (Basel, Switzerland) · 2022Review
24 more citing papers are in PubMed but not listed here.
Corrections and comments
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Authors and funding
3 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The flowers of the solanaceous plants ornamental tobacco (Nicotiana alata) and petunia (Petunia hybrida) produce high levels of defensins during the early stages of development. In contrast to the well-described seed defensins, these floral defensins are produced as precursors with C-terminal prodomains of 27 to 33 amino acids in addition to a typical secretion signal peptide and central defensin domain of 47 or 49 amino acids. Defensins isolated from N. alata and petunia flowers lack the C-terminal domain, suggesting that it is removed during or after transit through the secretory pathway. Immunogold electron microscopy has been used to demonstrate that the N. alata defensin is deposited in the vacuole. In addition to the eight canonical cysteine residues that define the plant defensin family, the two petunia defensins have an extra pair of cysteines that form a fifth disulfide bond and hence define a new subclass of this family of proteins. Expression of the N. alata defensin NaD1 is predominantly flower specific and is most active during the early stages of flower development. NaD1 transcripts accumulate in the outermost cell layers of petals, sepals, anthers, and styles, consistent with a role in protection of the reproductive organs against potential pathogens. The floral defensins inhibit the growth of Botrytis cinerea and Fusarium oxysporum in vitro, providing further support for a role in protection of floral tissues against pathogen invasion.
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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.