TY - JA AU - Helaly,S.E. AU - Ashrafi,S. AU - Teponno,R.B. AU - Bernecker,S. AU - Dababat,A.A. AU - Maier,W. AU - Stadler,M. TI - Nematicidal cyclic lipodepsipeptides and a xanthocillin derivative from a phaeosphariaceous fungus parasitizing eggs of the plant parasitic nematode Heterodera filipjevi PY - 2018///. CY - Ohio, U.S. : PB - American Chemical Society, KW - AGROVOC KW - Disease control KW - Plant nematodes KW - Heterodera N1 - Peer review N2 - The new cyclic lipodepsipeptide ophiotine (1), two new arthrichitin derivatives named arthrichitins B (4) and C (5), a new xanthocillin-like alkaloid, xanthomide Z (2), and the previously described arthrichitin (3) were isolated from the liquid culture broth of a nematode-associated fungus with affinities to the genus Ophiosphaerella. The structural elucidation and determination of the absolute configuration of the new molecules were accomplished using a combination of spectroscopic and chemical techniques, including 1D and 2D NMR, HRMS, and Marfey's analysis. Opiotine (1) displayed moderate nematicidal activity against the host nematode (Heterodera filipjevi), while xanthomide Z (2) exhibited very weak activity. Arthrichitin C (5) showed very weak cytotoxic effects on several cancer cell lines, with IC50 values in the range of 24-33 ?M. Xanthomide Z is among few xanthocillin derivatives that comprise formamide functions instead of the cyano functions that are usually observed in this class of fungal alkaloids UR - https://libcatalog.cimmyt.org/Download/cis/59836.pdf DO - https://doi.org/10.1021/acs.jnatprod.8b00486 T2 - Journal of Natural Products ER -