期刊
ACTA PHYSIOLOGIAE PLANTARUM
卷 33, 期 4, 页码 1093-1101出版社
SPRINGER HEIDELBERG
DOI: 10.1007/s11738-010-0637-0
关键词
Ultraviolet-B; Ocimum sanctum L.; Essential oil; Oil glands; GC-MS; SEM
资金
- University Grant Commission, Government of India, New Delhi
Field grown plants of holy basil (Ocimum sanctum L.) were treated with biologically effective supplemental ultraviolet-B (sUV-B) radiation (ambient +1.8 kJ m(-2) day(-1)) to evaluate its effect on specialized oil glands and quantity and quality of the essential oil. The total yield of essential oil increased significantly by 42.0% after sUV-B treatment. Gas chromatography-mass spectrometry analysis showed that most important flavor compounds beta-caryophyllene, germacrene-D, ethyl linoleolate, beta-elemene and camphenol increased significantly after sUV-B treatment. Moreover, the level of main compound eugenol was not affected significantly. Scanning electron microscopy analysis showed turgidity of oil glands after sUV-B exposure and it was well correlated with the higher yield of essential oil. The result is of specific interest because if other parameters remain constant, sUV-B may affect the production of the essential oil in Ocimum sanctum L.
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