A new phenol compound from endophytic Phomopsis sp. DC01

Area of Science:

• Natural Product Chemistry
• Mycology
• Organic Chemistry

Background:

• Daphniphyllum longeracemosum is a plant source for potential bioactive compounds.
• Fungal endophytes, such as Phomopsis species, are known producers of novel secondary metabolites.
• Exploring microbial diversity can lead to the discovery of new chemical entities.

Purpose of the Study:

• To isolate and identify fungal strains from Daphniphyllum longeracemosum.
• To investigate the chemical constituents produced by the isolated Phomopsis strain.
• To characterize any novel compounds discovered.

Main Methods:

• Fungal isolation from plant tissue.
• ITS sequence analysis for fungal identification.
• Extraction and purification of secondary metabolites using chromatographic techniques.
• Structure elucidation of compounds using 1D NMR, 2D NMR, and HR-ESI mass spectrometry.

Main Results:

• Phomopsis sp. strain DC01 was successfully isolated and identified from Daphniphyllum longeracemosum.
• Three compounds were isolated from the fermentation broth of Phomopsis sp. DC01.
• A new phenol compound, (E)-7-(2-hydroxy-4-(hydroxymethyl)phenyl)-2-methyloct-6-enoic acid (1), was identified.

Conclusions:

• Phomopsis sp. DC01 is a source of bioactive natural products.
• The discovery of a new phenol compound expands the known chemical diversity of Phomopsis species.
• This finding highlights the potential of endophytic fungi from medicinal plants for novel compound discovery.