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DATURA STRAMONIUM ALLELOCHEMICALS: LONGEVITY IN SOIL, AND ULTRASTRUCTURAL EFFECTS ON ROOT TIP CELLS OF HELIANTHUS ANNUUS L.
Author(s) -
LEVITT JUDY,
LOVETT J. V.,
GARLICK P. R.
Publication year - 1984
Publication title -
new phytologist
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.742
H-Index - 244
eISSN - 1469-8137
pISSN - 0028-646X
DOI - 10.1111/j.1469-8137.1984.tb04124.x
Subject(s) - datura stramonium , helianthus annuus , allelopathy , ultrastructure , botany , biology , germination , starch , chemistry , horticulture , sunflower , biochemistry
S ummary Allelopathic alkaloids from Datura stramonium seeds remained phytotoxic to Helianthus annuus for 15 weeks in soil under field conditions. Studies using transmission electron microscopy showed that these alkaloids retarded the metabolism of food reserves, particularly starch, in germinating H. annuus seeds. Structural damage to cells and organelles was not apparent.