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Biological Activity of Allelochemicals
2009All plants produce compounds that are phytotoxic to another plant species at some concentration. In some cases, these compounds function, at least in part, in plant/plant interactions, where a phytotoxin donor plant adversely affects a target plant, resulting in an advantage for the donor plant.
Franck E. Dayan, Stephen O. Duke
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Allelochemicals fromPolygonum sachalinense Fr. Schm. (Polygonaceae)
Journal of Chemical Ecology, 1992The root exudates fromPolygonum sachalinense in a recirculating system significantly inhibited lettuce seedling growth. The rhizomes and roots ofP. sachalinense were extracted with 80% acetone. Bioassay of the neutral-acidic fraction on the TLC agar plate showed the inhibitory activity corresponded to the two yellow pigment bands.
M, Inoue +3 more
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Ecological Relations (Allelochemicals)
1984Microorganisms, plants and animals live in a world of chemical signals. These signals, in most cases secondary products, are of special importance in ecology, i.e., the mutual relations between the different groups of organisms, which cause the formation of the characteristic communities of living beings in the forests, meadows, and deserts, in pools ...
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Lignin and polyphenols as allelochemicals
Industrial Crops and Products, 2008By the microbiological action, lignin from vegetal wastes is transformed at soil level in organic prebiotic products with physiological activity on plants development. On the other hand, some micromolecular compounds resulted from plant wastes decomposition, along with polyphenols coming from extraction of plant residues could play a role of ...
V.I. Popa +3 more
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Biological activity of allelochemicals
The field of therapeutic medicine and drug discovery is undergoing a renaissance, marked by a renewed interest in natural products as a source of novel pharmaceuticals. In the age of advanced synthetic chemistry and biotechnology, the vast potential of natural compounds often remains untapped, yet history has repeatedly shown that nature harbors a ...Kumar, Samit, Mishra, Pratima
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2008
This chapter presents a brief coverage of a range of common plant allelochemical groups, and includes discussion of their structures, chemistry, distribution, ecology, bioactivity, biosynthesis, allelopathy, and mode of action where known.
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This chapter presents a brief coverage of a range of common plant allelochemical groups, and includes discussion of their structures, chemistry, distribution, ecology, bioactivity, biosynthesis, allelopathy, and mode of action where known.
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Allelochemics as Systematic Markers
1982Life, as we know it, is inconceivable without hydrogen, carbon, nitrogen, oxygen, phosphorus, sulphur etc. The production of the heavier of these elements requires several billion years of “cooking” time in the interior of a star. The time lapse from the “Big Bang” to the final gravitational collapse of a universe, however, is, according to Einstein’s ...
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Bioavailability of Allelochemicals in Soil
2008Abstract : The successful spread of the weeds Acroptilon repens (Russian knapweed, RK) and Centaurea maculosa (Spotted knapweed, SK) has been attributed to the exudation of allelopathic chemicals by their roots. RK releases 7,8-benzoflavone and SK releases (+/-)- catechin.
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