Miyeon Jang1, Junheon Kim2,3, Kyungjae Andrew Yoon4, Si Hyeock Lee4, Chung Gyoo Park1,2,5. 1. Division of Applied Life Science (BK21+ Program), Gyeongsang National University, Jinju, Republic of Korea. 2. Institute of Agriculture and Life Science, Gyeongsang National University, Jinju, Republic of Korea. 3. Forest Insect Pests and Diseases Division, National Institute of Forest Science, Seoul, Republic of Korea. 4. Department of Agricultural Biotechnology, Seoul National University, Seoul, Republic of Korea. 5. Institute of Life Science, Gyeongsang National University, Jinju, Republic of Korea.
Abstract
BACKGROUND: The spotted-wing drosophila (SWD), Drosophila suzukii (Matsumura), is a globally invasive and serious pest of numerous soft-skinned fruit crops. Assessments were made of fumigant and contact toxicities of 12 Myrtaceae plant essential oils (EOs) and their components. For determining the mode of action of major components of active EOs, their activities against acetylcholinesterase (AChE) and Glutathione S-transferase (GST) were also assessed. RESULTS: Strong fumigant and contact toxicities were observed from EOs of Eucalyptus citriodora and Melaleuca teretifolia. The main components of E. citriodora were citronellal and isopulegol, whereas those of M. teretifolia were neral and geranial. Geranial showed the strongest fumigant activity, followed by citronellal or neral, M. teretifolia EO, isopulegol and E. citriodora EO. In contact toxicity assays, geranial also exhibited the strongest insecticidal activity, followed by neral or M. teretifolia EO, citronellol, citronellal, isopulegol and E. citriodora EO. Among the major components, all compounds showed low AChE inhibitory activity, while neral and geranial showed GST inhibitory activity against SWD. CONCLUSION: Myrtaceae plant EOs and their components have an excellent potential for being used in the control of SWD adults and could be useful in the development of more effective natural compounds as alternatives to synthetic pesticides.
BACKGROUND: The spotted-wing drosophila (SWD), Drosophila suzukii (Matsumura), is a globally invasive and serious pest of numerous soft-skinned fruit crops. Assessments were made of fumigant and contact toxicities of 12 Myrtaceae plant essential oils (EOs) and their components. For determining the mode of action of major components of active EOs, their activities against acetylcholinesterase (AChE) and Glutathione S-transferase (GST) were also assessed. RESULTS: Strong fumigant and contact toxicities were observed from EOs of Eucalyptus citriodora and Melaleuca teretifolia. The main components of E. citriodora were citronellal and isopulegol, whereas those of M. teretifolia were neral and geranial. Geranial showed the strongest fumigant activity, followed by citronellal or neral, M. teretifolia EO, isopulegol and E. citriodora EO. In contact toxicity assays, geranial also exhibited the strongest insecticidal activity, followed by neral or M. teretifolia EO, citronellol, citronellal, isopulegol and E. citriodora EO. Among the major components, all compounds showed low AChE inhibitory activity, while neral and geranial showed GST inhibitory activity against SWD. CONCLUSION: Myrtaceae plant EOs and their components have an excellent potential for being used in the control of SWD adults and could be useful in the development of more effective natural compounds as alternatives to synthetic pesticides.
Authors: Mohamed Z M Salem; Hosam O Elansary; Hayssam M Ali; Ahmed A El-Settawy; Mohamed S Elshikh; Eslam M Abdel-Salam; Krystyna Skalicka-Woźniak Journal: BMC Complement Altern Med Date: 2018-01-22 Impact factor: 3.659
Authors: Geneviève Lanouette; Jacques Brodeur; François Fournier; Véronique Martel; Marc Vreysen; Carlos Cáceres; Annabelle Firlej Journal: PLoS One Date: 2017-09-28 Impact factor: 3.240