ISSN:
1573-1561
Schlagwort(e):
Allelopathy
;
Rorippa sylvestris
;
weeds
;
salicylic acid
;
p-hydroxybenzoic acid
;
vanillic acid
;
syringic acid
;
hirsutin
;
4-methoxyindole-3-acetonitrile
;
pyrocatechol
;
root exudate
Quelle:
Springer Online Journal Archives 1860-2000
Thema:
Biologie
,
Chemie und Pharmazie
Notizen:
Abstract Both the neutral and acidic fractions of the acetone extract of yellow fieldcress (Kireha-inugarashi,Rorippa sylvestris Besser) inhibited lettuce seed germination. Salicylic,p-hydroxybenzoic, vanillic, and syringic acid were identified in the acidic fraction. In the neutral fraction, hirsutin (8-methylsulfinyloctyl isothiocyanate), 4-methoxyindole-3-acetonitrile, and pyrocatechol were identified. Bioassay using a root exudate recirculating system showedR. sylvestris during flowering inhibited the lettuce seedling growth. Hirsutin (13μg/plant/day) and pyrocatechol (9.3μg/plant/day) were the major compounds released into the rhizosphere. Several combinations of pyrocatechol,p-hydroxybenzoic acid, vanillic acid, and hirsutin reduced lettuce seedling growth. These compounds seemed to be allelochemicals.
Materialart:
Digitale Medien
URL:
http://dx.doi.org/10.1007/BF00994606
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