Exogenous Paclobutrazol Reinforces the Antioxidant and Antimicrobial Properties of Lavender <i>(Lavandula officinalis</i> L.) Oil through Modulating Its Composition of Oxygenated Terpenes
Plant growth regulators can affect the primary and secondary metabolites of various plant species. However, the effect of paclobutrazol (PBZ) on the composition of lavender oil, especially related to the terpenoid pathway, is still unclear in literatures. In this study, the effect of PBZ as a foliar...
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MDPI AG
2022-06-01
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| author | Salwa M. El-Sayed Karim. M. Hassan Ahmed. N. Abdelhamid Eman E. Yousef Yasmin M. R. Abdellatif Samah H. Abu-Hussien Mohamed A. Nasser Walaa. A. Elshalakany Doaa Bahaa Eldin Darwish Awatif M. Abdulmajeed Nadiyah M. Alabdallah Salem Mesfir Al-Qahtani Nadi Awad Al-Harbi Eldessoky S. Dessoky Hatem Ashour Mohamed F. M. Ibrahim |
| author_facet | Salwa M. El-Sayed Karim. M. Hassan Ahmed. N. Abdelhamid Eman E. Yousef Yasmin M. R. Abdellatif Samah H. Abu-Hussien Mohamed A. Nasser Walaa. A. Elshalakany Doaa Bahaa Eldin Darwish Awatif M. Abdulmajeed Nadiyah M. Alabdallah Salem Mesfir Al-Qahtani Nadi Awad Al-Harbi Eldessoky S. Dessoky Hatem Ashour Mohamed F. M. Ibrahim |
| author_sort | Salwa M. El-Sayed |
| collection | DOAJ |
| description | Plant growth regulators can affect the primary and secondary metabolites of various plant species. However, the effect of paclobutrazol (PBZ) on the composition of lavender oil, especially related to the terpenoid pathway, is still unclear in literatures. In this study, the effect of PBZ as a foliar spray (0.200, 400 and 600 ppm) on the vegetative growth, phytochemical content, and both antioxidant and antimicrobial properties of lavender oil were investigated. The results indicated that all examined PBZ treatments led to a significant (<i>p</i> ≤ 0.05) decrease in growth parameters compared to the untreated plants. Meanwhile, the yield of essential oil was significantly decreased by the treatment of PBZ at 200 ppm compared to the control. In contrast, applied-PBZ significantly enhanced the chlorophyll content and displayed a marked change in the composition of the essential oil. This change included an obvious and significant increase in 3-carene, eucalyptol, γ–terpinene, α-pinocarvone, caryophyllene, β-vetivenene, β-santalol, ledol, geranyl isovalerate, farnesol, caryophyllene oxide, and phytol percentage. Generally, the highest significant values were achieved by the treatment of 400 ppm compared to the other treatments. Furthermore, this treatment showed the highest free radical scavenging activity against DPPH (1,1-diphenyl-2-picrylhydrazyl) by 13% over the control. Additionally, to determine the antimicrobial activities of the extracted oil, each treatment was examined against two strains of Gram positive bacteria (<i>S. aureus</i> and <i>B. cereus</i>), two strains of Gram negative bacteria (<i>S. enteritidis</i> and <i>E. coli</i>), and two fungal species (<i>C. albicans</i> and <i>A. niger</i>) represent the yeast modal and filamentous fungus, respectively. The findings demonstrated that all examined species were more sensitive to the oil that was extracted from lavender plants, treated with 400 ppm PBZ, compared to the other concentrations. |
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| spelling | doaj.art-39a54a9ea97c4efa84997cb33630490c2023-11-23T18:35:18ZengMDPI AGPlants2223-77472022-06-011112160710.3390/plants11121607Exogenous Paclobutrazol Reinforces the Antioxidant and Antimicrobial Properties of Lavender <i>(Lavandula officinalis</i> L.) Oil through Modulating Its Composition of Oxygenated TerpenesSalwa M. El-Sayed0Karim. M. Hassan1Ahmed. N. Abdelhamid2Eman E. Yousef3Yasmin M. R. Abdellatif4Samah H. Abu-Hussien5Mohamed A. Nasser6Walaa. A. Elshalakany7Doaa Bahaa Eldin Darwish8Awatif M. Abdulmajeed9Nadiyah M. Alabdallah10Salem Mesfir Al-Qahtani11Nadi Awad Al-Harbi12Eldessoky S. Dessoky13Hatem Ashour14Mohamed F. M. Ibrahim15Department of Biochemistry, Faculty of Agriculture, Ain Shams University, Cairo 11566, EgyptDepartment of Horticulture, Faculty of Agriculture, Ain Shams University, Cairo 11566, EgyptDepartment of Horticulture, Faculty of Agriculture, Ain Shams University, Cairo 11566, EgyptDepartment of Food Science and Technology, Faculty of Agriculture, Ain Shams University, Cairo 11566, EgyptDepartment of Agricultural Botany, Faculty of Agriculture, Ain Shams University, Cairo 11566, EgyptDepartment of Microbiology, Faculty of Agriculture, Ain Shams University, Cairo 11566, EgyptDepartment of Horticulture, Faculty of Agriculture, Ain Shams University, Cairo 11566, EgyptDepartment of Biochemistry, Faculty of Agriculture, Ain Shams University, Cairo 11566, EgyptBotany Department, Faculty of Science, Mansoura University, Mansoura 35511, EgyptBiology Department, Faculty of Science, University of Tabuk, Umluj 46429, Saudi ArabiaDepartment of Biology, College of Science, Imam Abdulrahman Bin Faisal University, P.O. Box 1982, Dammam 31441, Saudi ArabiaBiology Department, University College of Tayma, University of Tabuk, P.O. Box 741, Tabuk 47512, Saudi ArabiaBiology Department, University College of Tayma, University of Tabuk, P.O. Box 741, Tabuk 47512, Saudi ArabiaDepartment of Biology, College of Science, Taif University, P.O. Box 11099, Taif 21944, Saudi ArabiaDepartment of Agricultural Botany, Faculty of Agriculture, Ain Shams University, Cairo 11566, EgyptDepartment of Agricultural Botany, Faculty of Agriculture, Ain Shams University, Cairo 11566, EgyptPlant growth regulators can affect the primary and secondary metabolites of various plant species. However, the effect of paclobutrazol (PBZ) on the composition of lavender oil, especially related to the terpenoid pathway, is still unclear in literatures. In this study, the effect of PBZ as a foliar spray (0.200, 400 and 600 ppm) on the vegetative growth, phytochemical content, and both antioxidant and antimicrobial properties of lavender oil were investigated. The results indicated that all examined PBZ treatments led to a significant (<i>p</i> ≤ 0.05) decrease in growth parameters compared to the untreated plants. Meanwhile, the yield of essential oil was significantly decreased by the treatment of PBZ at 200 ppm compared to the control. In contrast, applied-PBZ significantly enhanced the chlorophyll content and displayed a marked change in the composition of the essential oil. This change included an obvious and significant increase in 3-carene, eucalyptol, γ–terpinene, α-pinocarvone, caryophyllene, β-vetivenene, β-santalol, ledol, geranyl isovalerate, farnesol, caryophyllene oxide, and phytol percentage. Generally, the highest significant values were achieved by the treatment of 400 ppm compared to the other treatments. Furthermore, this treatment showed the highest free radical scavenging activity against DPPH (1,1-diphenyl-2-picrylhydrazyl) by 13% over the control. Additionally, to determine the antimicrobial activities of the extracted oil, each treatment was examined against two strains of Gram positive bacteria (<i>S. aureus</i> and <i>B. cereus</i>), two strains of Gram negative bacteria (<i>S. enteritidis</i> and <i>E. coli</i>), and two fungal species (<i>C. albicans</i> and <i>A. niger</i>) represent the yeast modal and filamentous fungus, respectively. The findings demonstrated that all examined species were more sensitive to the oil that was extracted from lavender plants, treated with 400 ppm PBZ, compared to the other concentrations.https://www.mdpi.com/2223-7747/11/12/1607<i>Lavandula officinalis</i> L.Gas chromatography-mass spectrometry (GC-MS)chemical compositionmonoterpene and sesquiterpene |
| spellingShingle | Salwa M. El-Sayed Karim. M. Hassan Ahmed. N. Abdelhamid Eman E. Yousef Yasmin M. R. Abdellatif Samah H. Abu-Hussien Mohamed A. Nasser Walaa. A. Elshalakany Doaa Bahaa Eldin Darwish Awatif M. Abdulmajeed Nadiyah M. Alabdallah Salem Mesfir Al-Qahtani Nadi Awad Al-Harbi Eldessoky S. Dessoky Hatem Ashour Mohamed F. M. Ibrahim Exogenous Paclobutrazol Reinforces the Antioxidant and Antimicrobial Properties of Lavender <i>(Lavandula officinalis</i> L.) Oil through Modulating Its Composition of Oxygenated Terpenes Plants <i>Lavandula officinalis</i> L. Gas chromatography-mass spectrometry (GC-MS) chemical composition monoterpene and sesquiterpene |
| title | Exogenous Paclobutrazol Reinforces the Antioxidant and Antimicrobial Properties of Lavender <i>(Lavandula officinalis</i> L.) Oil through Modulating Its Composition of Oxygenated Terpenes |
| title_full | Exogenous Paclobutrazol Reinforces the Antioxidant and Antimicrobial Properties of Lavender <i>(Lavandula officinalis</i> L.) Oil through Modulating Its Composition of Oxygenated Terpenes |
| title_fullStr | Exogenous Paclobutrazol Reinforces the Antioxidant and Antimicrobial Properties of Lavender <i>(Lavandula officinalis</i> L.) Oil through Modulating Its Composition of Oxygenated Terpenes |
| title_full_unstemmed | Exogenous Paclobutrazol Reinforces the Antioxidant and Antimicrobial Properties of Lavender <i>(Lavandula officinalis</i> L.) Oil through Modulating Its Composition of Oxygenated Terpenes |
| title_short | Exogenous Paclobutrazol Reinforces the Antioxidant and Antimicrobial Properties of Lavender <i>(Lavandula officinalis</i> L.) Oil through Modulating Its Composition of Oxygenated Terpenes |
| title_sort | exogenous paclobutrazol reinforces the antioxidant and antimicrobial properties of lavender i lavandula officinalis i l oil through modulating its composition of oxygenated terpenes |
| topic | <i>Lavandula officinalis</i> L. Gas chromatography-mass spectrometry (GC-MS) chemical composition monoterpene and sesquiterpene |
| url | https://www.mdpi.com/2223-7747/11/12/1607 |
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