ArticleScientific reports2016
Involvement of type VI secretion system in secretion of iron chelator pyoverdine in Pseudomonas taiwanensis.
Article in Scientific reports, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 47 papers.
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47 citing papers in PubMed, 79 citations in OpenAlex.
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- Pigments from pathogenic bacteria: a comprehensive update on recent advances.World journal of microbiology & biotechnology · 2024Review
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- A multimodal nonlinear optical microscopy study of the responses of Pseudomonas aeruginosa to blue light and antibiotic treatment.Journal of biophotonics · 2024Article
- The type VI secretion system of Stenotrophomonas rhizophila CFBP13503 limits the transmission of Xanthomonas campestris pv. campestris 8004 from radish seeds to seedlings.Molecular plant pathology · 2024Article
- Secretory molecules from secretion systems fine-tune the host-beneficial bacteria (PGPRs) interaction.Frontiers in microbiology · 2024Review
- T6SS: A Key to Pseudomonas's Success in Biocontrol?Microorganisms · 2023Review
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- Tn5 Transposon-based Mutagenesis for Engineering Phage-resistant Strains of Escherichia coli BL21 (DE3).Journal of microbiology (Seoul, Korea) · 2023Article
- Bacterial type VI secretion system (T6SS): an evolved molecular weapon with diverse functionality.Biotechnology letters · 2023Review
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- From salty to thriving: plant growth promoting bacteria as nature's allies in overcoming salinity stress in plants.Frontiers in microbiology · 2023Review
- Pangenome analysis of Enterobacteria reveals richness of secondary metabolite gene clusters and their associated gene sets.Synthetic and systems biotechnology · 2022Article
- Evaluation of the Antifungal Activities ofJournal of fungi (Basel, Switzerland) · 2022Article
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Authors and funding
10 authors at 5 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Rice bacterial blight caused by Xanthomonas oryzae pv. oryzae (Xoo) is one of the most destructive rice diseases worldwide. Therefore, in addition to breeding disease-resistant rice cultivars, it is desirable to develop effective biocontrol agents against Xoo. Here, we report that a soil bacterium Pseudomonas taiwanensis displayed strong antagonistic activity against Xoo. Using matrix-assisted laser desorption/ionization imaging mass spectrometry, we identified an iron chelator, pyoverdine, secreted by P. taiwanensis that could inhibit the growth of Xoo. Through Tn5 mutagenesis of P. taiwanensis, we showed that mutations in genes that encode components of the type VI secretion system (T6SS) as well as biosynthesis and maturation of pyoverdine resulted in reduced toxicity against Xoo. Our results indicated that T6SS is involved in the secretion of endogenous pyoverdine. Mutations in T6SS component genes affected the secretion of mature pyoverdine from the periplasmic space into the extracellular medium after pyoverdine precursor is transferred to the periplasm by the inner membrane transporter PvdE. In addition, we also showed that other export systems, i.e., the PvdRT-OpmQ and MexAB-OprM efflux systems (for which there have been previous suggestions of involvement) and the type II secretion system (T2SS), are not involved in pyoverdine secretion.
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