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    Antimicrobial activity of Pancratium maritimum
    (2003) Kaya G.I.; Öztürk H.T.; Ünver N.
    In vitro antimicrobial activity of n-hexane, ethyl acetate, ethanolic and aqueous extracts of the bulbs and aerial parts of Pancratium maritimum L. (Amaryllidaceae) was determined by using the disc diffusion technique. The antimicrobial activity of the extracts was screened against seven bacterial strains including Escherichia coli ATCC 11230, Staphylococcus aureus ATCC 6538-P, Salmonella typhimurium CCM 5445, Staphylococcus epidermidis ATCC 12228, Enterococcus faecalis ATCC 29212, Enterobacter cloacae ATCC 13047, Pseudomonas aeroginosa ATCC 27853 and the yeast-like fungus Candida albicans ATCC 10239. Some of the extracts were found to inhibit the growth of certain Gram(+) and Gram(-) bacteria. Only the ethanolic and aqueous extracts of the aerial parts were active against Candida albicans.
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    Four new amaryllidaceae alkaloids from Galanthus gracilis and Galanthus plicatus subsp. byzantinus
    (2001) Ünver N.; Noyan S.; Gözler B.; Gözler T.; Werner C.; Hesse M.
    (+)-3-Epi-3,4-dihydro-3-hydroxygraciline (5), isolated from Galanthus gracilis of Turkish origin, is a new member of the gracilines, a recently established subgroup of the Amaryllidaceae alkaloids. G. plicatus subsp. byzantinus has furnished three new alkaloids, namely (+)-plicane (12), which is a new plicamine-type alkaloid, along with (+)-3-O-(3-hydroxybutyryl)tazettinol (13), and N-formylismine (15).
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    Three new tazettine-type alkaloids from Galanthus gracilis and Galanthus plicatus subsp. byzantinus
    (1999) Ünver N.; Noyan S.; Gözler T.; Önür M.A.; Gözler B.; Hesse M.
    Three new tazettine-type alkaloids were isolated from two different Galanthus species of Turkish origin. (+)-Isotazettinol and (+)-3-O- demethylmacronine are obtained from G. gracilis, while (+)-3-O-demethyl-3- epimacronine is found in G. plicatus subsp. byzantinus. The known base, trispheridine, is reported for the first time in Galanthus genus.
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    An unusual pentacyclic dinitrogenous alkaloid from Galanthus gracilis
    (2005) Ünver N.; Kaya G.I.
    A minor alkaloid, namely gracilamine, was isolated from Galanthus gracilis. This was the first example of a pentacyclic dinitrogenous alkaloid isolated from a member of Amaryllidaceae. The structure of this alkaloid was elucidated by means of comprehensive spectroscopic methods (ID and 2D NMR, MS, UV, IR). © TÜBİTAK.