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Steroidal Saponin from Allium porrum
Chemistry of Natural Compounds, 2017A new steroidal glycoside (1) was isolated by fractionation of total extracted substances from Allium porrum. Its structure was determined as (25R)-5α-spirostan-3β,6β-diol-12-one 3-O-β-D-glucopyranosyl-(1→2)-[β-D-fucopyranosyl-(1→3)]-β-D-glucopyranosyl-(1→4)-β-D-galactopyranoside using chemical transformations, physical constants, and spectral data.
L. N. Gvazava, A. V. Skhirtladze
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Steroidal Glycoside from Allium porrum
Chemistry of Natural Compounds, 2018New steroidal glycoside 1 was isolated by fractionating total extracted substances from Allium porrum. Its structure was determined as (25R)-5_-spirostane-3β,6β-diol-2,12-dione 3-O-{β-D-glucopyranosyl-(1→3)-β-D-glucopyranosyl-(1→2)-[β-D-xylopyranosyl-(1→3)]-β-D-glucopyranosyl-(1→4)-β-Dgalactopyranoside} using chemical transformations, physical ...
L. N. Gvazava, A. V. Skhirtladze
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Chitinase in roots of mycorrhizal Allium porrum: regulation and localization
Planta, 1989Chitinase (EC 3.2.1.14) activity was measured in roots of Allium prorrum L. (leek) during development of a vesicular-arbuscular mycorrhizal symbiosis with Glomus versiforme (Karst.) Berch. During the early stages of infection, between 10 and 20 d after inoculation, the specific activity of chitinase was higher in mycorrhizal roots than in the ...
P, Spanu +5 more
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The flavonoids of leek, Allium porrum
Phytochemistry, 2001A phytochemical investigation of the extracts obtained from bulbs of leek. Allium porrum L. has led to the isolation of five flavonoid glycosides based on the kaempferol aglycone. Two of them are new compounds and have been identified as kaempferol 3-O-[2-O-(trans-3-methoxy-4-hydroxycinnamoyl)-beta-D-galactopyranosyl]-(1-->4)-O-beta-D-glucopyranoside ...
E. , FATTORUSSO +3 more
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2018
Allium porrum L. Artbeschreibung: 30-60(-100) cm hoch. Stängel am Grund nur wenig verdickt, im unteren Teil von 2zeilig stehenden Blättern umhüllt, diese lineal, fleischig, kahl, gekielt, bis über 4 cm breit. Blütenstand kugelig, sehr dicht, ohne Brutzwiebeln, Durchmesser 3-8 cm.
Konrad Lauber +2 more
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Allium porrum L. Artbeschreibung: 30-60(-100) cm hoch. Stängel am Grund nur wenig verdickt, im unteren Teil von 2zeilig stehenden Blättern umhüllt, diese lineal, fleischig, kahl, gekielt, bis über 4 cm breit. Blütenstand kugelig, sehr dicht, ohne Brutzwiebeln, Durchmesser 3-8 cm.
Konrad Lauber +2 more
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The Sapogenins of Allium porrum L.
Journal of Agricultural and Food Chemistry, 1998A chemical study of the sapogenin content has been conducted on leek, A. porrum L., sown and collected at different times. As a result of this investigation, a variability in the sapogenin composition depending from the climate was observed. In addition, a novel sapogenin named porrigenin C (1a), and its 25S epimer (1b) have been isolated, together ...
FATTORUSSO, ERNESTO +3 more
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Cytotoxic Saponins from Bulbs of Allium porrum L.
Journal of Agricultural and Food Chemistry, 2000An extensive phytochemical analysis of the saponin content has been undertaken on leek, Allium porrum L., sown and collected at different seasons. As a result of this investigation, eight saponins (1-8) have been isolated, four of them (5-8) being novel compounds.
FATTORUSSO, ERNESTO +4 more
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Plant Cell Reports, 2005
Transgenic leek (Allium porrum) and garlic (Allium sativum) plants have been recovered by the selective culturing of immature leek and garlic embryos via Agrobacterium-mediated transformation using a method similar to that described by Eady et al. (Plant Cell Rep 19:376-381, 2000) for onion transformation.
Colin, Eady +4 more
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Transgenic leek (Allium porrum) and garlic (Allium sativum) plants have been recovered by the selective culturing of immature leek and garlic embryos via Agrobacterium-mediated transformation using a method similar to that described by Eady et al. (Plant Cell Rep 19:376-381, 2000) for onion transformation.
Colin, Eady +4 more
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Shoot production from cultured Allium porrum tissues
Scientia Horticulturae, 1979Abstract Large numbers of shoots have been obtained from the excised basal regions of leek plants, cultured on BDS medium. Shoots could be induced optimally upon media within the range of 6.0–8.0 mg 1 −1 6-(3-methyl-2-buten-1-ylamino)-purine (2iP) and 1.0–2.0 mg 1 −1 napthaleneacetic acid (NAA).
D.I. Dunstan, K.C. Short
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