Miranda, Cíntia Alvarenga Santos Fraga de;
Cardoso, Maria das Graças;
Carvalho, Maria Laene Moreira de;
Gomes, Marcos De Sousa;
Santiago, Juliana De Andrade;
Santiago, Wilder Douglas;
Teixeira, Maria Luiza;
Nelson, David Lee
EVALUATION OF THE CHEMICAL COMPOSITION AND ALLELOPATHIC POTENTIAL OF ESSENTIAL OILS FROM THREE SPECIES OF ASTERECEAE AGAINST SEED GERMINATION AND SEEDLING VIGOR OF LETTUCE
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Media type:
E-Article
Title:
EVALUATION OF THE CHEMICAL COMPOSITION AND ALLELOPATHIC POTENTIAL OF ESSENTIAL OILS FROM THREE SPECIES OF ASTERECEAE AGAINST SEED GERMINATION AND SEEDLING VIGOR OF LETTUCE
Contributor:
Miranda, Cíntia Alvarenga Santos Fraga de;
Cardoso, Maria das Graças;
Carvalho, Maria Laene Moreira de;
Gomes, Marcos De Sousa;
Santiago, Juliana De Andrade;
Santiago, Wilder Douglas;
Teixeira, Maria Luiza;
Nelson, David Lee
Published:
CIRWOLRD, 2015
Published in:
JOURNAL OF ADVANCES IN CHEMISTRY, 11 (2015) 6, Seite 3669-3677
Language:
Not determined
DOI:
10.24297/jac.v11i6.855
ISSN:
2321-807X
Origination:
Footnote:
Description:
The allelopathic properties of the essential oils have been exploited because they are biodegradable natural compounds that can be used in combination or as prototypes for new bioherbicides. The objectives of this study were to chemically characterize the essential oils from B. dracunculifolia, C. bonariesis and T. diversifolia and to evaluate their allelopathic potential. The essential oils were extracted by hydrodistillation and their chemical compositions were determined by GC-MS. Allelopathic activities were determined by methods that evaluate the effects of volatile compounds and direct contact of those compounds on the seed germination and seedling vigor of lettuce. The principal constituents of the essential oil from B. dracunculifolia were limonene, trans-nerolidol and β-pinene; those in the oil from C. bonariesis were limonene, trans-β-ocimene and cis-verbenol (4.4%); and those in the oil from T. diversifolia were β-pinene, α-pinene and limonene. Minor differences in the germination and vigor of lettuce seedlings were observed when they were exposed to the volatile essential oils from the leaves of the three species of the Asteraceae family. However, upon direct contact with these oils, those of C. bonariesis presented the greatest allelopathic potential, which was attributed to its higher content of oxygenated monoterpenes.