allelochemicals การใช้

• Plants use chemical defenses in the form of secondary metabolites or allelochemicals.
• Marine allelochemicals generally are present in greater quantity and diversity in tropical than in temperate regions.
• These allelochemicals inhibit the growth, behavior, and health of herbivores, allowing plants to escape.
• Plants universally produce secondary metabolites, also called allelochemicals, which serve no purpose in basic metabolic processes.
• The pace of evaluating allelochemicals released by higher plants in nature has greatly accelerated, with promising results in field screening.
• The tree of heaven, " Ailanthus altissima ", produces allelochemicals in its roots that inhibit the growth of many plants.
• They report that 17 out of 29 allelochemicals are toxic at some levels ( especially alkaloids, saponins, cardiac glycosides and cyanogenic glycosides ).
• Phytotoxic allelochemicals, such as mimosine and certain phenolic compounds, including p-hydroxycinnamic acid, protocatechuic acid, and gallic acid, have been identified in the leaves of the species.
• Detzel and Wink ( 1993 ) published an extensive review of 63 types of plant allelochemicals ( alkaloids, terpenes, glycosides, etc . ) and their effects on bees when consumed.
• It forms dense rosettes of leaves at ground level, suppressing the germination and growth of other species, at the same time producing allelochemicals which adversely affect the growth of neighbouring plants.
• The characteristics of these natural chemicals indicate a potential role of cis-cinnamic acid and its glucosides as allelochemicals ( chemicals, released from plants, that cause an interaction between plants and other living organisms ) for use as plant growth regulators and weed suppression in agricultural fields and in natural ecosystems.
• However, by 1994 Dr . D . L . Liu and Dr . J . V . Lowett at the Department of Agronomy and Soil Science, University of New England in Armidale, NSW, Australia wrote two papers in the Journal of Chemical Ecology that developed methods to separate the allelochemical effects from other competitive effects, using barley plants and inventing a process to examine the allelochemicals directly.