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      Three nitrogen-containing metabolites from an algicolous isolate of Trichoderma asperellum

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          Abstract

          As one of the most productive species, Trichoderma asperellum, especially isolated from marine algae, has contributed a number of new terpenes and nitrogen-bearing compounds, encouraging our continuous efforts to further explore them. Consequently, three new nitrogen-containing secondary metabolites, including cyclo(L-5-MeO-Pro-L-5-MeO-Pro) ( 1), 5′-acetoxy- deoxycyclonerin B ( 2), and 5′-acetoxy-deoxycyclonerin D ( 3) were isolated from the marine alga-derived endophytic fungus Trichoderma asperellum A-YMD-9-2. Their structures and relative configurations were fully elucidated through spectroscopic techniques, mainly including 1D/2D NMR and MS. The absolute configurations of 1 and 2 were ascertained on the basis of X-ray diffraction (Cu K α radiation) and ECD data, respectively. The isolation of these new nitrogen-bearing compounds adds to the structural diversity of marine algicolous Trichoderma spp., and they display potent inhibition against some marine phytoplankton species.

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          Author and article information

          Journal
          MLST
          Marine Life Science & Technology
          Springer (China )
          2096-6490
          2662-1746
          01 May 2020
          01 April 2020
          : 2
          : 2
          : 155-160
          Affiliations
          1Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai 264003, China
          Author notes
          *Corresponding author: Naiyun Ji, E-mail: nyji@ 123456yic.ac.cn
          Article
          s42995-020-00030-6
          10.1007/s42995-020-00030-6
          © 2020 Ocean University of China
          Product
          Self URI (journal-page): https://www.springer.com/journal/42995
          Categories
          Research Paper

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