Abstract
Aphelenchoides besseyi and Ditylenchus destructor can cause serious problems for a number of important agricultural crops and vegetables. In this study, the ethanol extract of Stellera chamaejasme L. roots showed strong nematicidal activity against Aphelenchoides besseyi and Ditylenchus destructor. By using a bioactivity-driven fractionation, three biflavonoids were isolated from the extract and their structures were identified by mass and nuclear magnetic resonance spectral data. Nematicidal activity bioassays revealed that isoneochamaejasmin A had the strongest nematicidal activity against A. besseyi and D. destructor with LC50 values of 2.32 and 0.18 mM at 72 h, respectively. Chamaejasmenin B displayed weaker nematicidal activity against A. besseyi with an LC50 value of 3.94 mM at 72 h. Neochamaejasmin B induced the lowest mortality against D. destructor with an LC50 values of 15.6 mM at 72 h. These results suggested that the kind and position of substitutions and the relative configuration of 2-H/3-H and 2”-H/3”-H could be considered as important factors responsible for the nematicidal activity of these purified C-3/C-3″ biflavonoids.
Original language | English |
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Pages (from-to) | 1473-1478 |
Number of pages | 6 |
Journal | Journal of Asia-Pacific Entomology |
Volume | 21 |
Issue number | 4 |
DOIs | |
State | Published - Dec 2018 |
Externally published | Yes |
Bibliographical note
Publisher Copyright:© 2018 Korean Society of Applied Entomology
Funding
The authors thank Prof. Frank Stermitz for English edition. This work was financially supported by the National Natural Science Foundation of China (No. 31772668 , 81601647 , 31560037 , 21775154 and 31570354 ), the National Key Research and Development Program ( 2017YFD0200804-05 ), Cooperation Program to Gansu Province of Lanzhou Branch of the Chinese Academy of Sciences , CAS “Light of West China” Program, the Open Project Program for State Key Laboratory of Grassland Agro-ecosystem of Lanzhou University ( SKLGAE201704 ), the Open Project Program of Breeding Base for State Key Laboratory of Land Degradation and Ecological Restoration of North-western China/ Key Laboratory for Restoration and Reconstruction of Degraded Ecosystem in North-western China of Ministry of Education ( 2017KF009 ), and Around five top priorities program of “One-Three-Five” Strategic Planning of Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences . The authors thank Prof. Frank Stermitz for English edition. This work was financially supported by the National Natural Science Foundation of China (No. 31772668, 81601647, 31560037, 21775154 and 31570354), the National Key Research and Development Program (2017YFD0200804-05), Cooperation Program to Gansu Province of Lanzhou Branch of the Chinese Academy of Sciences, CAS “Light of West China” Program, the Open Project Program for State Key Laboratory of Grassland Agro-ecosystem of Lanzhou University (SKLGAE201704), the Open Project Program of Breeding Base for State Key Laboratory of Land Degradation and Ecological Restoration of North-western China/ Key Laboratory for Restoration and Reconstruction of Degraded Ecosystem in North-western China of Ministry of Education (2017KF009), and Around five top priorities program of “One-Three-Five” Strategic Planning of Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences.
Funders | Funder number |
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Cooperation Program to Gansu Province of Lanzhou Branch of the Chinese Academy of Sciences | |
Open Project Program for State Key Laboratory of Grassland Agro-ecosystem of Lanzhou University | |
Research and Development | |
Lanzhou University | SKLGAE201704 |
National Natural Science Foundation of China | 31772668, 31570354, 21775154, 31560037, 81601647 |
Ministry of Education of the People's Republic of China | 2017KF009 |
Chinese Academy of Sciences | |
Ministry of Education | |
Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences | |
National Key Research and Development Program of China | 2017YFD0200804-05 |
Keywords
- Aphelenchoides besseyi
- Biflavonoids
- Ditylenchus destructor
- Nematicidal compounds
- Plant extract