Control of litchi downy blight by zeamines produced by Dickeya zeae

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Control of litchi downy blight by zeamines produced by Dickeya zeae
Title:
Control of litchi downy blight by zeamines produced by Dickeya zeae
Journal Title:
Scientific Reports
Keywords:
Publication Date:
26 October 2015
Citation:
Scientific Reports 5, Article number: 15719 (2015)
Abstract:
Zeamines (ZMS), a class of polyamine-polyketide-nonribosomal peptide produced by bacterial isolate Dickeya zeae, were shown recently to be potent antibiotics against some bacterial pathogens. In this study, the results indicated that ZMS showed antifungal activity against Peronophythora litchii and other fungal pathogens. The activity of ZMS against the oomycete pathogen P. litchi, which causes the devastating litchi downy blight, was further investigated under in vitro and in vivo conditions. ZMS displayed potent inhibitory activity against the mycelial growth and sporangia germination of P. litchii. At a concentration of 2 μg/mL, about 99% of the sporangia germination was inhibited. Scanning electron microscopy and transmission electron microscopy analyses showed that treatment with ZMS could cause substantial damages to the oomycete endomembrane system. Furthermore, treatment of litchi fruits with ZMS solution significantly (P 
License type:
http://creativecommons.org/licenses/by/4.0/
Funding Info:
Description:
ISSN:
2045-2322
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