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Allelopathy: Chemistry and Mode of Action of Allelochemicals by Horace G. Cutler, Francisco A. Macias, Juan C.G. Galindo,

By Horace G. Cutler, Francisco A. Macias, Juan C.G. Galindo, Jose M. G. Molinillo

Allelopathy interactions are dependent totally on the creation of secondary chemical compounds via better crops that produce an array of biochemical compounds that create organic adjustments. This overseas selection of sixteen papers stocks present thought of the chemistry and mode of motion of those compounds and the way they have an effect on ecology, agriculture, and forests. issues contain the function of lichen secondary metabolites, analytical ideas for investigating allelopathic brokers in wheat root exudates, the destiny of phenolic allelochemicals in soils, allelochemical houses of quinolizidine alkaloids, and the mode of motion of phytotoxic terpenoids.

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Extra info for Allelopathy: Chemistry and Mode of Action of Allelochemicals

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Electrolyte leakage induced by compounds was determined using 4 mm cotyledon discs as described by Kenyon - 27 Copyright © 2004 CRC Press, LLC Allelopathy: Chemistry and Mode of Action of Allelochemicals et al. 22 The Petri dishes were placed in the dark at 25°C for 22 hours and then -2 -1 exposed to 325 µmol m s of light for the remainder of the experiment. Protoporphyrinogen oxidase (protox) assay Crude etioplast preparations were obtained from 10-d-old dark-grown barley seedlings according to the method of Dayan et al.

While the lichen compounds were not as effective as Isotox, a known insecticide used as a positive control, in causing high mortality rates, the insecticidal activity could be further exploited synthetically with other active - 25 Copyright © 2004 CRC Press, LLC Allelopathy: Chemistry and Mode of Action of Allelochemicals compounds or manipulated to form more active derivatives. By showing that lichen compounds do have insecticidal activity, a new area of natural compounds can be explored for effective control of insects that threaten crop yield.

35 Results and Discussion .............................................................................. 36 Ruppia maritima................................................................................ 36 Potamogeton natans......................................................................... 39 Antialgal Assays ............................................................................... 43 Aquatic Invertebrate Assays ............................................................. 45 Methodology ................................................................................................

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