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The plant organisms are exposed to both biotic and abiotic factors, which have evolved. my best song, with two of the greatest, Michael Jackson and which I watch every day on YouTube This development resulted in the plant biosynthesis of numerous routes through which synthesize and accumulate in their bodies a variety of secondary metabolites. It is known that these metabolites play a vital role in the interactions between organisms in ecosystems. Among these are compounds produced by plants that cause various effects on other organisms. These substances are known as aleloquimicos and the phenomenon is referred aleloquimia, allelopathy or when plants are established between individuals.
Numerous bioassays showed that extracts or leachates from leaves, bark, leaves and seeds contain several species of eucalyptus aleloquimicos can adversely affect many species of plants. All species of eucalyptus have tested substances that inhibit, to varying degrees, growth and germination of many but not all, plants exposed in vitro or in greenhouses to extracts or leachates. Annual crops planted eucalyptus distance gradients suggest that allelopathy occurs under field conditions, plants close to eucalyptus trees yield less and are smaller than the size of plants to these distant trees.
The monoterpenes are the main components of essential oils of plants and terpenoids are the most abundant growth inhibitors that have been identified in higher plants. They are known for their allelopathic potential against weeds and crop plants. Among the most frequent activity will include allelopathic camphor, pinene and b, 1.8-cineole, and dipentene. Among the plants that produce them include the genera Salvia spp, Amaranthus, Eucalyptus, Artemisia, and Pinus.
Italic text General in biotic communities, many species are regulated to one another through the production and release of repellents, attractants, stimulants and chemical inhibitors. The allelopathy deals in chemical plant interactions – plant and plant – body, whether harmful or beneficial.
The allelopathy is therefore a phenomenon that involves the direct inhibition of one kind or another animal or vegetable, using toxic substances or deterrent. Organic farming makes use of all this to protect crops from attack by some insect pests through the intercalation of aromatic plants within the crop. For example interlayer ruda in potato.
These relationships are especially important as the adult plants synthesize characteristic aromas and essences. Green beans and strawberries, for example, thrives where most are grown together than when grown separately. Planted lettuce and spinach is more juicy when sown in a ratio of 4 to 1.
Some plants secrete toxic substances that can not be grown in association, an example of these is the wormwood whose roots are toxic but these same substances control fleas and slugs when used as you well away from the beetles and weevils stored grains. Fennel, dill and anis reject soil insects.
As the above examples, there are a number of plants of great value for their allelopathic. Then extend some aspects of relevance to all those involved with the agricultural sector or simply interested in this important topic.
The allelopathic effects of one plant on another is not complete, for better or worse, but is governed by events of greater or lesser degree depending on the characteristics of the agencies involved. However, the potential of natural products that can be used by its biological properties, such as herbicides, pesticides, antibiotics, growth stimulants or inhibitors, etc.. Is virtually inexhaustible.
The study of the chemical interactions between the main species of an agro ecosystem and the impact of chemicals onallele dynamics and production of the same, should lead us towards ecological goals and to finding more information that allows us to exploit this potential .
These natural products have multiple purposes as noted in the definition, effects ranging from inhibition or stimulation of growth processes of plants adjacent to the inhibition of seed germination, or prevent the action of insects and animal mess leaves, as well as the harmful effects of bacteria, fungi and viruses. Thus, natural products make up a significant part of the defense systems of plants with the advantage of being biodegradable.
Numerous scientific investigations have shown that products grown in organic systems, are more dry matter and therefore more nutritional value per kilogram of weight.

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