Glasnik Zaštite Bilja, Vol. 34 No. 4, 2011.
Pregledni rad
Allelopathic plant relations: review of affecting factors and possible application
Silivja Zeman
; Bioinstitut d.o.o.
Goran Fruk
; Sveučilište u Zagrebu, Agronomski fakultet, Zavod za voćarstvo
Tomislav Jemrić
; Sveučilište u Zagrebu, Agronomski fakultet, Zavod za voćarstvo
Sažetak
Allelopathy is a chemical interaction between two plants, which is achieved through specific chemical compounds - allelochemicals. Except as the relationship between plants, allelopathy also occurs as microbe-microbe, plant-insect, plant-microbe or plant-herbivore relationship. Allelochemicals from plants that synthesize them are released in four different ways and are adsorbed by the receiving plant through the roots. The first way is in the form of gases that are released from the leaves. Another way is flushing allelochemicals from leaves or stems during the rain, dew, fog and snow. The third way is secretion from the roots. The fourth way is through the decomposition of plant residues containing allelochemicals. Allelochemicals exist in a plant in the form of water soluble glycosides and can be divided into antibiotics, phytoncides, marasmines and cholines. They differ in chemical composition, mode of action and type of organisms on which they operate. They are synthetized as reaction of plant to different environmental parameters, such as the presence of competitors and the herbivore, or stress in any form. One of the main objectives of tallelopathic research is the application of allelochemicals against weeds or other pests such as nematodes in order to reduce the use of synthetic pesticides and reduce their negative impact on the environment.
Ključne riječi
allelochemicals; chemical signals; herbicide effect; nematocide effect
Hrčak ID:
163235
URI
Datum izdavanja:
20.7.2011.
Posjeta: 4.492 *