| Title: | "Presence and roles of myrtenol, myrtanol and myrtenal in Dendroctonus armandi (Coleoptera: Curculionidae: Scolytinae) and Pinus armandi (Pinales: Pinaceae: Pinoideae)" |
| Author(s): | Zhao M; Liu B; Sun Y; Wang Y; Dai L; Chen H; |
| Address: | "State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources (South China Agricultural University), Guangdong Key Laboratory for Innovative Development and Utilization of Forest Plant Germplasm, College of Forestry and Landscape Architecture, South China Agricultural University, Guangzhou, China. College of Forestry, Northwest A&F University, Yangling, China" |
| ISSN/ISBN: | 1526-4998 (Electronic) 1526-498X (Linking) |
| Abstract: | "BACKGROUND: Insect pheromones and host volatiles are important for pest control due to their high efficiency and low potential for environmental pollution. The functions of myrtenol, myrtanol and myrtenal in pest-host interactions are unknown. This study aimed to determine the presence of myrtenol, myrtanol and myrtenal in newly emerged and emerged stages of Dendroctonus armandi, and in infected and healthy Pinus armandi, and to identify their roles in tree protection and pest management based on electroantennography (EAG), Y-tube and toxicity experiments. RESULTS: Gas chromatographic and mass spectrometry (GC-MS) analyses, EAG, Y-tube and toxicity assays revealed the following: (1) myrtenol was found in P. armandi phloem and did not exhibit significant toxicity towards D. armandi; (2) myrtanol was produced by infected P. armandi after D. armandi invasion and had significant toxicity towards D. armandi, especially females; and (3) myrtenal might represent an aggregation pheromone produced by female D. armandi to exert aggregation effects on other females, to help them overcome the resistance of P. armandi jointly and ensure a successful invasion, females remained in an aggregation state from leaving the host to mating in a new host. CONCLUSION: These findings suggest that myrtanol as a repellent has potential for the protection of P. armandi and that myrtenal could be used to trap and disorient D. armandi. (c) 2019 Society of Chemical Industry" |
| Keywords: | Animals Bicyclic Monoterpenes *Coleoptera Female Pheromones *Pinus *Weevils Dendroctonus armandi Pinus armandi aggregation pheromone myrtanol myrtenal myrtenol toxicant; |
| Notes: | "MedlineZhao, Mingzhen Liu, Bin Sun, Yaya Wang, Yuanyuan Dai, Lulu Chen, Hui eng 31870636/National Natural Science Foundation of China/ 2017ZDJC-03/Natural Science Basic Research Plan in Shaanxi Province of China/ England 2019/05/21 Pest Manag Sci. 2020 Jan; 76(1):188-197. doi: 10.1002/ps.5492. Epub 2019 Jun 20" |
