

FOLLOWUS
College of Pharmaceutical Science & Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals, Key Laboratory of Marine Fishery Resources Exploitment & Utilization of Zhejiang Province, Zhejiang University of Technology, Hangzhou 310014, China
cjw983617@zjut.edu.cn
hongw@zjut.edu.cn
Received:08 January 2022,
Published:01 May 2023
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GUO Yuqi,YING Youmin,WU Qihao,et al.,β-cyclopiazonic acid binds iron demonstrating siderophore-like activity and promotes growth in ,Pseudomonas aeruginosa[J].Journal of Oceanology and Limnology,2023,41(03):1159-1167.
This chemical study reports a novel siderophore-like compound
β
-cyclopiazonic acid (
1
β
-CPA) extracted from marine fungus
Aspergillus flavus
. The chemical structure of
β
-CPA was elucidated by a combination of extensive spectroscopic analyses and TDDFT-ECD calculations. The iron-binding ability and CAS assays demonstrate that
β
-CPA is a novel siderophore that features a different chemical structure from those of traditional siderophores. The
β
-CPA has no obvious influence on the growth of bacterium
Pseudomonas aeruginosa
PAO1. However
its iron chelator could promote the growth of
P
.
aeruginosa
PAO1
suggesting that
P
.
aeruginosa
employed siderophores to sequester iron
which is vital for their survival. The study provides the physiochemical evaluation of
β
-CPA
an unusual skeleton-structure siderophore
which for the first time
was proven to have the ability to bind iron and affect
P
.
aeruginosa
growth. This new discovery of siderophore provides an opportunity for developing novel anti-
P
.
aeruginosa
drugs.
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