New peanut (Arachis hypogaea) phytoalexin with prenylated benzenoid and but-2-enolide moieties

Journal of Agricultural and Food Chemistry
Victor S SobolevJames B Gloer

Abstract

A new pigmented, optically active, low molecular weight metabolite has been isolated from peanut (Arachis hypogaea) kernels challenged by four species of Aspergillus. The structure of the new compound, termed SB-1, was elucidated by analysis of 1H NMR, 13C NMR, and mass spectrometric data. The SB-1 molecule bears prenylated benzenoid and but-2-enolide moieties and represents an unusual class of compounds. The closest known analogue to SB-1 was isolated from heartwood of Pericopsis elata. Both A. hypogaea and P. elata belong to the family Leguminosae. The new metabolite was accumulated in different peanut genotypes challenged by five Aspergillus species and may be an important representative of a new class of peanut phytoalexins. SB-1 production often exceeds production of major known stilbenes.

References

Jan 1, 1996·Annual Review of Microbiology·C S Harwood, R E Parales

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Citations

Mar 24, 2011·Journal of Agricultural and Food Chemistry·Renata Miranda LopesDâmaris Silveira
Feb 15, 2011·Journal of Agricultural and Food Chemistry·Victor S SobolevJames B Gloer
May 7, 2011·Journal of Agricultural and Food Chemistry·Ziyun WuDejian Huang
Dec 18, 2015·Journal of Agricultural and Food Chemistry·Victor S SobolevJames B Gloer
Oct 30, 2010·Phytochemistry·Victor S SobolevDavid E Wedge
Jan 3, 2012·Trends in Plant Science·Ishita AhujaAtle M Bones
Dec 10, 2008·Journal of Agricultural and Food Chemistry·Victor S SobolevJames B Gloer
Dec 6, 2017·Journal of Agricultural and Food Chemistry·Victor SobolevAlicia Massa
Feb 8, 2013·Journal of Agricultural and Food Chemistry·Victor S Sobolev

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