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Cytosporone B as a Biological Preservative: Purification, Fungicidal Activity and Mechanism of Action Against

Chunxiao Yin, Hongxin Liu, Yang Shan, Vijai Kumar Gupta, Yueming Jiang, Weimin Zhang, Haibo Tan, Liang Gong

Biomolecules. 2019 Mar 29;9(4):125.

PMID: 30934892

Abstract:

To prevent citrus decay caused by Geotrichum citri-aurantii, 12 natural products were isolated from two endophytic fungi, in which cytosporone B was shown to have excellent bioactivity for control of G. citri-aurantii with median effect concentration (EC50) of 26.11 μg/mL and minimum inhibitory concentration (MIC) of 105 μg/mL, and also significantly reduced the decay of sugar orange during the in vivo trials. In addition, cytosporone B could alter the morphology of G. citri-aurantii by causing distortion of the mycelia and loss of membrane integrity. Differentially expressed genes (DEGs) between cytosporone B-treated and -untreated samples were revealed by Illumina sequencing, including 3540 unigenes. Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) analyses showed that most DEGs were related to metabolic production and cell membrane. These findings suggest cytosporone B is a promising biological preservative to control citrus decay and reveal the action mechanism of cytosporone B in relation to the destruction of the fungal cell membrane at both morphological and molecular levels.

Chemicals Related in the Paper:

Catalog Number Product Name Structure CAS Number Price
AP321661625 Cytosporone B Cytosporone B 321661-62-5 Price
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