ISSN:
1573-1561
Keywords:
Allelopathy
;
Antennaria microphylla
;
small everlasting
;
Euphorbia esula
;
leafy spurge
;
tissue culture
;
hydroquinone
;
arbutin
;
glucosyltransferase
;
biotransformation
Source:
Springer Online Journal Archives 1860-2000
Topics:
Biology
,
Chemistry and Pharmacology
Notes:
Abstract Media and media extracts from callus cultures of small everlasting (Antennaria microphylla) inhibited leafy spurge (Euphorbia esula L.) callus tissue and suspension culture growth (50 and 70% of control, respectively) and were phytotoxic in lettuce and leafy spurge root elongation bioassays (64 and 77% of control, respectively). Hydroquinone, a phytotoxic compound previously isolated from small everlasting, was also biosynthesized by callus and suspension cultures of this species. Exogenously supplied hydroquinone (0.5 mM) was toxic to leafy spurge suspension culture cells and was only partially biotransformed to its nontoxic water-soluble monoglucoside, arbutin, by these cells. This report confirms the chronic involvement of hydroquinone in the allelopathic interaction between small everlasting and leafy spurge.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF01016501
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