Phytochemistry2022，Vol.1978.DOI:10.1016/j.phytochem.2022.113125

Decalintetracids A and B, two pairs of unusual 3-decalinoyltetramic acid derivatives with phytotoxicity from Fusarium equiseti D39

Zhao, Dong-Lin Liu, Jing Han, Xiao-Bin Wang, Mei Peng, Yu-Long Ma, Si-Qi Cao, Fei Li, Yi-Qiang Zhang, Cheng-Sheng
Phytochemistry2022，Vol.1978.DOI:10.1016/j.phytochem.2022.113125
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  • NSTL
  • Elsevier

Decalintetracids A and B, two pairs of unusual 3-decalinoyltetramic acid derivatives with phytotoxicity from Fusarium equiseti D39

Zhao, Dong-Lin 1Liu, Jing 2Han, Xiao-Bin 2Wang, Mei 1Peng, Yu-Long 2Ma, Si-Qi 1Cao, Fei 3Li, Yi-Qiang 1Zhang, Cheng-Sheng1
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作者信息

  • 1. Chinese Acad Agr Sci
  • 2. Guizhou Tobacco Co
  • 3. Hebei Univ
  • 折叠

Abstract

The filamentous fungi Fusarium sp. are well-known for their ability to produce abundant specialised metabolites with attractive chemical structures and bioactivities. In this study, chemical analyses of the endophyte F. equiseti D39 led to the isolation and identification of two pairs of undescribed 3-decalinoyltetramic acids (3DTAs) E/Z diastereomers, decalintetracids A and B. Their structures were elucidated by comprehensive spectroscopic analysis and quantum-chemical calculations. Although 3DTAs were commonly reported from fungi, decalintetracid A possessed an unprecedented tricyclo [7.2.1.0(2,7)] dodecane skeleton, which added the diversity of these fungal metabolites. In addition, decalintetracid B was featured by a unique 6/6/5 ring system core. A plausible biosynthetic pathway for decalintetracids A and B was proposed. Both compounds exhibited phytotoxicity toward Amaranthus retroflexus L. and Amaranthus hybrid, indicating their potential as natural herbicides.

Key words

Fusarium equiseti/Tubeculariaceae/Filamentous fungus/3-Decalinoyltetramic acids/Decalintetracids A and B/E/Z diastereomers/Phytotoxicity/NATURAL-PRODUCTS/FUNGUS/POLYKETIDE

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出版年

2022
Phytochemistry

Phytochemistry

CCR
ISSN：0031-9422
被引量1
参考文献量30
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