A Toxic Principle in the Leaves of Ailanthus

  title={A Toxic Principle in the Leaves of Ailanthus},
  author={F. Mergen},
  journal={Botanical Gazette},
  pages={32 - 36}
  • F. Mergen
  • Published 1959
  • Biology
  • Botanical Gazette
1. The presence of a substance that was toxic to other tree seedlings was demonstrated in aqueous extracts of foliage from Ailanthus altissima (Mills) Swingle. 2. The effect of concentration of, and the response to, this extract was tested on thirty-five species of gymnosperms and on eleven species of angiosperms. Members of all species, with the exception of those of Fraxinus americana L., were adversely affected. 
Seasonal Variation in Toxicity of Ailanthus Leaves to Pine Seedlings
The addition of Ailanthus leaves to the soil did not inhibit the activity of soil organisms as measured by the production of CO2, and the addition of Sterilization of the soil had no effect on the survival of transplanted seedlings, but when seeds were planted in sterilized soil and watered with ailanthus extract, a detrimental effect was observed. Expand
Herbicidal effect of Ailanthus altissima leaves water extracts on Medicago sativa seeds germination
Water extracts of leaves have been prepared and diluted to multiple concentrations in order to assess the relation between the extract concentration and the intensity of herbicidal activity, and showed that there was a significant difference between the emergence of treated and untreated seeds. Expand
Identification of an allelopathic compound from Ailanthus altissima (Simaroubaceae) and characterization of its herbicidal activity
The high level of postemergence herbicidal activity in conjunction with its rapid biodegradation in soil suggest ailanthone may have potential for development as a natural-product herbicide. Expand
The ecological impact of allelopathy in Ailanthus altissima (Simaroubaceae)
Differences demonstrated that the allelochemicals of Ailanthus altissima exhibited a measurable impact upon neighboring plant species, and since the progeny of unexposed populations displayed a differential response to Ailan Thus, this phenotypic difference between the two populations may have a heritable basis. Expand
Herbicidal effects under field conditions of Ailanthus altissima bark extract, which contains ailanthone
The herbicidal effects of A. altissima bark extract declined within the first few weeks after application, supporting previous evidence that ailanthone is rapidly degraded under field conditions. Expand
Allelopathic and herbicidal effects of extracts from tree of heaven (Ailanthus altissima).
The results suggest the allelochemical(s) from Ailanthus may have potential for development as natural-product herbicides, especially when sprayed pre- and postemergence on plants in soil in the greenhouse. Expand
Plant growth regulatory effect and insecticidal activity of the extracts of the Tree of Heaven (Ailanthus altissima L.)
The extract or its semi-purified fractions of A. altissima were strong plant growth inhibitors, therefore good candidates as potential environmentally safe and effective agricultural pest management agents and the finding that light affects the activity will be useful in the application of such natural products. Expand
Ailanthone from Ailanthus altissima (Mill.) Swingle as potential natural herbicide
This study explored Ail phytotoxic activity and persistence, through five experiments, to evaluate its potential for the weed management in the horticulture sector and in urban green areas, where lower herbicide amounts are needed. Expand
Herbicide Activity of Extracts from Ailanthus Altissima (Simaroubaceae)
Results indicate that the bark of A. altissima may represent an interesting source for the production of natural herbicides for use in agriculture and a significant pre-emergence herbicide activity was found for a specific fraction. Expand
Chemical influences of other plants (allelopathy)
The plant in innumerable chemical ways controls its own development from germination to flowering and the ripening of fruits and seeds through growth hormones, germination inhibitors etc., produced by the plant body itself, regulate the physiological functions of this self-same body. Expand


Further Investigation of Toxic Substances which Arise from Guayule Plants: Relation of Toxic Substances to the Growth of Guayule in Soil
In the present experiments it has not been possible to detect these inhibitory substances in any of three soils in which guayule had grown in the nursery or field for periods of 2-8 years. Expand
The influence of Artemisia Absinthium on neighbouring plants. (An essay of Experimental Plant Sociology No. III)
It was demonstrated that the proximity of Atriplex hortensis had no influence on the same test plants which were injured by Artemisia Absinthium and that they were only physically oppressed by Artemisian vulgaris, viz. by its spreading, branches, which makes it probable that it is indeed the absinthiin, excreted by ArtemisIA Absinthia, which causes this species to be harmful to the surrounding plants. Expand
The Inhibiting Effect of Dead Roots on the Growth of Bromegrass
When bromegrass is grown a substance, or substances, inhibitory to its own growth accumulates in the substratum, which in the above experiment had accumulated in the unchanged nutrient solutions. Expand
An inhibitor of plant growth from the leaves of Encelia farinosa.
The toxic principle of Juglans nigra as identified with synthetic juglone and its toxic effect on tomato and alfalfa plants
  • Amer. Jour. Bot
  • 1928
The Effect of one Plant on Another
The relation of peach root toxicity to the re - establishing of peach orchards
  • Ann . Bot .
  • 1917
A Manual of Poisonous Plants. Torch Press, Cedar Rapids, Iowa
  • 1911