ArticleWorld journal of microbiology & biotechnology2020
Class I defensins (BraDef) from broccoli (Brassica oleracea var. italica) seeds and their antimicrobial activity.
Article in World journal of microbiology & biotechnology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
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Who cites it
6 citing papers in PubMed, 13 citations in OpenAlex.
- The Multifaceted Health Benefits of Broccoli-A Review of Glucosinolates, Phenolics and Antimicrobial Peptides.Molecules (Basel, Switzerland) · 2025Review
- Harnessing nature's arsenal: sustainable plant-based strategies for phytopathogen control.Frontiers in microbiology · 2025Review
- Comprehensive Analysis of Bioactive Compounds, Functional Properties, and Applications of Broccoli By-Products.Foods (Basel, Switzerland) · 2024Review
- The Valorization of Wastes and Byproducts from Cruciferous Vegetables: A Review on the Potential Utilization of Cabbage, Cauliflower, and Broccoli Byproducts.Foods (Basel, Switzerland) · 2024Review
- Natural Antimicrobials: A Reservoir to ContrastMicroorganisms · 2023Review
- Review
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Authors and funding
6 authors at 2 institutions in 2 countries.
Funding
Abstract
The objective of this study was to determine whether seeds of Brassica oleracea var. italica (i.e. broccoli, an edible plant) produce defensins that inhibit phytopathogenic fungi and pathogenic bacteria of clinical significance. Crude extracts obtained from broccoli seeds were fractioned by molecular exclusion techniques and analyzed by liquid chromatography-high-resolution mass spectrometry. Two peptides were identified, BraDef1 (10.68 kDa) and BraDef2 (9.9 kDa), which were categorized as Class I defensins based on (a) their primary structure, (b) the presence of four putative cysteine disulfide bridges, and (c) molecular modeling predictions. BraDef1 and BraDef2 show identities of, respectively, 98 and 71%, and 67 and 85%, with defensins from Brassica napus and Arabidopsis thaliana. BraDef (BraDef1 + BraDef2) disrupted membranes of Colletotrichum gloeosporioides and Alternaria alternata and also reduced hyphal growth of C. gloeosporioides by ~ 56% after 120 h of incubation. Pathogenic bacteria (Bacillus cereus 183, Listeria monocytogenes, Salmonella typhimurium, Pseudomonas aeruginosa, and Vibrio parahaemolitycus) were susceptible to BraDef, but probiotic bacteria such as Bifidobacterium animalis, Lactobacillus acidophilus, and Lactobacillus casei were not inhibited. To our knowledge, this is the first report of defensins present in seeds of B. oleracea var. italica (i.e. edible broccoli). Our findings suggest an applied value for BraDef1/BraDef2 in controlling phytopathogenic fungi and pathogenic bacteria of clinical significance.
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