Plant phenolics in allelopathy.

From: The Botanical Review | Date: April 1, 1996 | Copyright information

Phenolics are one of the many secondary metabolites implicated in allelopathy. To establish that allelopathy functions in a natural ecosystem, the allelopathic bioassay must be ecologically realistic so that responses of appropriate bioassay species are determined at relevant concentrations. It is important to isolate, identify, and characterize phenolic compounds from the soil. However, since it is essentially impossible to simulate exact field conditions, experiments must be designed with conditions resembling those found in natural systems. It is argued that allelopathic potential of ...

Related newspaper, magazine, and trade journal articles from HighBeam Research

(Including press releases, facts, information, and biographies)

Bioavailability of Phenolic Compounds
; Phenolic compounds in foods originate from one of...there is a growing interest in phenolic compounds and their presumed role in the...importance of antioxidant activities of phenolic compounds and their possible usage in processed...
Updated Knowledge About the Presence of Phenolic Compounds in Wine
; Phenolic compounds are partly responsible for the...in this field. The main type of phenolic compounds found in wine, including hydroxybenzoic...reactions and mechanisms involving phenolic compounds during winemaking are also extensively...
Ferulic Acid and its Position Among the Phenolic Compounds of Wheat
; ...properties. Keywords ferulic acid, phenolic compounds, wheat, cereal grains INTRODUCTION Interest in phenolic compounds originates mainly from their...provoked numerous studies into phenolic compounds in many plants, including cereals...
Testing of phenols easier and cheaper now
; ...to detect minute concentrations of phenolic compounds. Phenols are a class of toxic chemicals...incinerators and cigarette smoke. Phenolic compounds are hazardous to health and when...Malaysia, the maximum allowable level of phenolic compounds in surface water for drinking purposes...
Nondestructive Assessment of Sinapic Acid Esters in Brassica Species: II. Evaluation of Germplasm and Identification of Phenotypes with Reduced Levels.
; Phenolic compounds include a wide range of substances...1980). However, the presence of phenolic compounds reduces the nutritive value of...1990). The concentration of phenolic compounds in the major oilseed crops of...
A Review of the Effects and Mechanisms of Polyphenolics in Cancer
; ...their biotic environment by producing phenolic compounds as secondary metabolites. Phenolic compounds serve such diverse functions as coloring...flowers, and barks are rich sources of phenolic compounds. Numerous studies have suggested...
Comparative study of radical scavenger activities of crude extract and fractions from Cuphea carthagenensis leaves.
; ...leaves are significant sources of phenolic compounds with antioxidant activity in vitro...Keywords: Crude extract; Fractions; Phenolic compounds; Lipid peroxidation; Antioxidants...and shown to include saponins and phenolic compounds (Grenand et al., 1987). Phenolic...
Singlet oxygen-mediated hydroxyl radical production in the presence of phenols: Whether DMPO--OH formation really indicates production of OH?
; ...solutions of hematoporphyrin with phenolic compounds in the presence of a spin trap, 5...DMPO, was observed in the absence of phenolic compounds. The ESR signal of DMPO-*OH decreased...generated and the oxidation potentials of phenolic compounds was observed, suggesting that the...
Phenolic Compounds Accumulate Specifically in Maternally-Derived Tissues of Developing Maize Kernels
; ABSTRACT Phenolic compounds function in natural resistance...Cereal Chem. 84(4):350-356 Phenolic compounds are important plant secondary...precursors for more complex phenolic compounds including flavonoids, tannins...
Fluorescence Resonance Energy Transfer Between Polyphenolic Compounds and Riboflavin Indicates a Possible Accessory Photoreceptor Function for Some Polyphenolic Compounds
; ...carotene, and a preponderance of phenolic compounds. Absorption spectra and fluorescence spectra of various phenolic compounds showed close overlap with...Fluorescence spectra of several phenolic compounds showed close overlap with...