What are examples of allelochemicals?
What are examples of allelochemicals?
Tables
| Allelopathic plant | Impact |
|---|---|
| Garlic mustard | Inhibition of arbuscular mycorrhizal fungi colonizing on sugar maple |
| Barbados nut (Jatropha curcas) | Extracts of leaves and roots inhibited corn and tobacco |
| Chicory | Inhibition of Echinochloa crusgalli and Amaranthus retroflexus |
What do you mean by allelopathic effect?
Allelopathy is a biological phenomenon by which an organism produces one or more biochemicals that influence the germination, growth, survival, and reproduction of other organisms from the same community.
What is an Allelotoxin?
[ə¦lē·lō¦täk·sən] (plasma physics) A toxic compound released in an allelopathic process.
Does an onion plant produce Allelochemicals?
A recent study indicates that root exudates of onion stimulate the seedling growth of tomato (Solanum lycopersicum L.) (Liu et al., 2013). Allelochemicals are released into the environment through various plant tissues including roots, stems, leaves and seeds (Makoi and Ndakidemi, 2012).
What is Allelospoly?
Allelospoly has been used as a term to describe the increasing competition from trees in agroforestry systems for light, water and nutrients which results in it only being possible to carry out intercropping during the early growth period of the tree.
What do you mean by herbicide?
herbicide, an agent, usually chemical, for killing or inhibiting the growth of unwanted plants, such as residential or agricultural weeds and invasive species.
Does onion produce allelochemicals?
Are weeds allelopathic?
The potential allelopathic effect of weeds is directly related to the plant species used, as well as to the concentration of the aqueous extract present in the environment.
Why do some plants produce more allelochemicals than others?
Quantities of allelochemicals produced are also greater under conditions of mineral deficiency, drought stress, and cool temperatures as opposed to more optimal growing conditions. In some cases, plants affected by growth regulator herbicides may increase production of allelochemicals.
Where do the effects of allelochemicals take place?
Effects range from stimulation to regulation and inhibition. Some allelochemicals are released by one organism and taken up or recognized by another organism. Other allelochemicals are located within the producing organism (i.e., a plant or algae) and affect grazers, herbivores, or pathogens upon damage.
Can a trophic interaction cause an allelochemical?
Allelochemical interactions should only encompass effects caused by allelochemicals, and should exclude any resource interference or trophic interactions. While evidence for the involvement of allelochemicals under controlled (laboratory) conditions is possible, often in situ proof remains difficult.
Are there any allelochemicals that have less potential value?
For example, an allelochemical found in flowers or fruits would have less potential value than if it were concentrated in roots or shoots ( Putnam, 1985 )—a statement about availability, not allelochemical potency.
