Journal
BIOCHEMICAL SYSTEMATICS AND ECOLOGY
Volume 33, Issue 3, Pages 257-268Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.bse.2004.09.002
Keywords
Eupenicillium; spiroquinazoline; endophyte; Murraya paniculata Rutaceae; alkaloid
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A Eupenicillium spp. was isolated from healthy leaves of Murraya paniculata (Rutaceae) after surface sterilization. This fungus was cultivated in sterilized white-corn, where the spiroquinazoline alkaloids alanditrypinone, alantryphenone, alantrypinene and alantryleunone were produced. The culture was extracted with methanol and the alkaloids were isolated by a combination of silica gel chromatography and HPLC. The structures were elucidated by extensive spectroscopic studies, including 2D NMR and MS-MS experiments. The possible role of endophytes in the biosynthesis of plant secondary metabolites is discussed. (C) 2005 Elsevier Ltd. All rights reserved.
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