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'Antibiotic' in keywords Facet   section ZfN Section C:Volume 037  [X]
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1982 (1)
1Author    Ute Laudenbach, Jürgen KesselmeierRequires cookie*
 Title    Some Observations on the Saponin Accumulation in Oat Seedlings and on the Transformation of the Avenacosides to the Antibiotic 26-Desgluco-avenacosides  
 Abstract    The accumulation o f the steroidal saponins avenacoside A and B in oat was investigated in green and etiolated seedlings and was found to be strictly bound to the growth o f the seedlings. N o significant differences were detected between green and etiolated seedlings, showing that there is no relation between saponin accumulation and plastid developm ent. As the role o f the oat saponins has to be seen as a protective device against fungi and bacteria, the transformation o f the inactive avenacosides to their corresponding antibiotic 26-desgluco-avenacosides was tested in dependence o f pH and temperature. During disruption o f leaves, transformation occurs almost com pletely over a wide pH-range (pH 4 —pH 10); the degree o f transformation exhibits no distinct temperature optimum but a drastic decrease at 70 °C. 
  Reference    Z. Naturforsch. 37c, 1095 (1982); received July 10 1982 
  Published    1982 
  Keywords    Saponin Accumulation, Antibiotic, /?-Glucosidase, Oat 
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 TEI-XML for    default:Reihe_C/37/ZNC-1982-37c-1095.pdf 
 Identifier    ZNC-1982-37c-1095 
 Volume    37