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Essential Oil Variation from Twenty Two Genotypes of Citrus in Brazil-Chemometric Approach and Repellency Against Diaphorina citri Kuwayama.
- Source :
-
Molecules (Basel, Switzerland) [Molecules] 2016 Jun 22; Vol. 21 (6). Date of Electronic Publication: 2016 Jun 22. - Publication Year :
- 2016
-
Abstract
- The chemical composition of volatile oils from 22 genotypes of Citrus and related genera was poorly differentiated, but chemometric techniques have clarified the relationships between the 22 genotypes, and allowed us to understand their resistance to D. citri. The most convincing similarities include the synthesis of (Z)-β-ocimene and (E)-caryophyllene for all 11 genotypes of group A. Genotypes of group B are not uniformly characterized by essential oil compounds. When stimulated with odor sources of 22 genotypes in a Y-tube olfactometer D. citri preferentially entered the arm containing the volatile oils of Murraya paniculata, confirming orange jasmine as its best host. C. reticulata × C. sinensis was the least preferred genotype, and is characterized by the presence of phytol, (Z)-β-ocimene, and β-elemene, which were not found in the most preferred genotype. We speculate that these three compounds may act as a repellent, making these oils less attractive to D. citri.
- Subjects :
- Animals
Brazil
Citrus genetics
Citrus parasitology
Genotype
Hemiptera pathogenicity
Insect Repellents chemistry
Insect Repellents pharmacology
Oils, Volatile chemistry
Phytol chemistry
Phytol pharmacology
Plant Oils chemistry
Sesquiterpenes chemistry
Sesquiterpenes pharmacology
Citrus drug effects
Hemiptera drug effects
Oils, Volatile pharmacology
Plant Oils pharmacology
Subjects
Details
- Language :
- English
- ISSN :
- 1420-3049
- Volume :
- 21
- Issue :
- 6
- Database :
- MEDLINE
- Journal :
- Molecules (Basel, Switzerland)
- Publication Type :
- Academic Journal
- Accession number :
- 27338332
- Full Text :
- https://doi.org/10.3390/molecules21060814