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'Antim icrobial Defense' in keywords Facet   Publication Year 1984  [X]
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1Author    M. WinkRequires cookie*
 Title    Chemical Defense of Leguminosae. Are Quinolizidine Alkaloids Part of the Antimicrobial Defense System of Lupins?  
 Abstract    Growth o f 6 bacteria (Serratia marcescens, Bacillus megaterium , Bacillus subtilis, Streptococcus viridis, Micrococcus luteus, and M ycobacterium ph lei) was inhibited by 50% if the growth m edium contained sparteine at concentrations between 0 .5 -1 0 m M . Total growth inhibition, which was bacteriostatic in nature, was achieved at 20 m M . The growth o f 6 phytopathogenic fungi was also affected: at a sparteine concentration o f 15 m M the growth o f Alternaria porri was reduced by 40% as compared to the untreated control. R espective values were 18% inhibition for Piricularia oryzae, 33% for H elminthosporium carbonum, 15% for R hizoctonia solani, 5% for Fusarium oxysporum, and 42% for Asperquillus oryzae. Since the concentrations o f quinolizidine alkaloids range from 1 -2 0 0 m M (roots, leaves, or stems) or 1 0 -2 0 0 m m ol/k g (seeds) in Legum inosae, it is discussed whether quinolizidine alkaloids are involved in the antim icrobial defense o f lupins, in addition to their potential role as allelopathic or herbivore repellent defense com pounds. 
  Reference    Z. Naturforsch. 39c, 548 (1984); received January 23 1984 
  Published    1984 
  Keywords    Quinolizidine Alkaloids, Growth Inhibition, Bacteria, Fungi, Antim icrobial Defense 
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 TEI-XML for    default:Reihe_C/39/ZNC-1984-39c-0548.pdf 
 Identifier    ZNC-1984-39c-0548 
 Volume    39