Journal ArticleDOI
The role of allelopathy in biochemical ecology: experience from Taiwan.
Reads0
Chats0
TLDR
Allelopathy plays an appreciable role in natural vegetation and plantations in Taiwan and an aggressive kikuyu grass was planted in a deforested land where Chinese fir grew previously, to help in understanding the mechanism of biological interactions between plants.Abstract:
Allelopathic compounds, including fatty acids, phenolics, flavonoids, terpenoids, and alkaloids, have been found in various plants and soils of different habitats in Taiwan since 1972. For example, in a monoculture of rice plants, phytotoxins were produced during the decomposition of rice residues in soil, suppressed the growth of rice seedlings, and reduced the numbers of tillers and panicles, leading to yield reduction. The allelopathic metabolites are also affected by environmental factors, such as oxygen, temperature, soil moisture, microbial activity, and levels of fertilizers in soil, and allelopathy was pronounced in areas where environmental stresses were severe. Substantial amounts of phytotoxic mimosine and phenolics were released into soil by plant parts of Leucaenaleucocephala, and these suppressed the growth of many understory species except that of L.leucocephala itself. A unique pattern of absence of understory plants was ubiquitous beneathPhyllostachys edulis, due primarily to an allelopathic effect. In a forest pasture intercropping, an aggressive kikuyu grass was planted in a deforested land where Chinese fir grew previously, to help in understanding the mechanism of biological interactions between plants. Aqueous soil leachate and extracts of the grass significantly, retarded the growth of local weeds but not that of the Chinese fir. Allelopathy thus plays an appreciable role in natural vegetation and plantations in Taiwan.read more
Citations
More filters
Journal ArticleDOI
Significance of Allelopathy in Crop Rotation
TL;DR: Examples from field crops, forage crops, horticultural species, weeds, and microbes provide evidences for the role allelopathy plays in crop rotation systems.
Journal ArticleDOI
Nutritive value of bamboo as browse for livestock
TL;DR: Perennial stands of temperate bamboo could prove to be a valuable, multiple-use crop suitable for Appalachian farm operations and easily adaptable to goat production systems.
Journal ArticleDOI
Metabolite profiling of rhizosphere soil of different allelopathic potential rice accessions
TL;DR: Allelochemicals in root exudates of allelopathic rice are mainly non-polar substances, and long-chain fatty acids are considered as allelopathy interrelated metabolites.
Journal ArticleDOI
OsPAL2-1 Mediates Allelopathic Interactions Between Rice and Specific Microorganisms in the Rhizosphere Ecosystem.
TL;DR: This study indicates that OsPAL2-1 is among the efficient genes that regulate rice allelopathy by controlling the synthesis of phenolic acid allelochemicals, and Phenolic acid (ferulic acid, FA) induces the chemotactic aggregation of M. xanthus, which promoted the proliferation and aggregation of this microbe.
References
More filters
Journal ArticleDOI
Plant root exudates
TL;DR: It has now been demonstrated conclusively that application of certain compounds to leaves affects the quantity and types of exudates.
Book
The Science of allelopathy
Alan R. Putnam,Chung-Shih Tang +1 more
TL;DR: Allelopathy: State of the Science FIELD OBSERVATIONS of ALLELOPATHY in DIVERSE ECOSYSTEMs: Growth Stimulation by Allelochemicals Adverse Impacts of Alle lopathy in Agricultural Systems.
Journal ArticleDOI
The Role of Chemical Inhibition (Allelopathy) in Vegetational Composition
TL;DR: The deterioration of old Salvia stands, apparently by auto-initoxication, suggests that allelopathy could be a significant factor in plant succession in many kinds of vegetation.
Journal ArticleDOI
Autointoxication mechanism ofOryza sativa I. Phytotoxic effects of decomposing rice residues in soil
Chang-Hung Chou,Hui-Jung Lin +1 more
TL;DR: It was concluded that the growth of rice seedlings was retarded by decaying rice residues in soil; thus, this appeared to be an autointoxication phenomenon.