1
|
Wang B, Zhang Y, Zhang C, Liao M, Cao H, Gao Q. Identification and functional characterization of two antenna-specifc odorant-binding proteins in Plutella xylostella response to 2,3-dimethyl-6-(1-hydroxy)-pyrazine. Int J Biol Macromol 2024; 262:130031. [PMID: 38331072 DOI: 10.1016/j.ijbiomac.2024.130031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2023] [Revised: 02/02/2024] [Accepted: 02/05/2024] [Indexed: 02/10/2024]
Abstract
Plutella xylostella is an important cruciferous crop pest with a serious resistance to multiple insecticides, a novel natural compound, 2,3-dimethyl-6-(1-hydroxy)-pyrazine were isolated, that showed significant repellent activity against P. xylostella with olfactory system as a potential target. Eight odorant-binding proteins (OBPs) were determined as candidate target genes using RT-qPCR (Quantitative reverse transcription PCR), most of them were clustered with OBPs from Spodoptera frugiperda. Fluorescence competitive binding assays showed that PxylPBP2 (Pheromone binding protein) and PxylOBP3 had Ki values of 7.13 ± 0.41 μM and 9.56 ± 0.35 μM, indicating a high binding affinity to the pyrazine. Moreover, the binding style between these two OBPs and the pyrazine was determined as a hydrophobic interaction by using molecular docking. The binding between PxylPBP2 and the pyrazine was found to be more stable, and the carbon atoms of C-2 and C-3 in this pyrazine showed potential optimization characteristics. Both PxylPBP2 and PxylOBP3 were highly expressed in the antennae of both sexes. These results can be used to design and develop novel green pesticides with the pyrazine as the active or lead compound to reduce the utilization of chemical pesticides and postpone development of resistance.
Collapse
Affiliation(s)
- Buguo Wang
- School of Plant Protection, Anhui Agricultural University, Hefei 230036, China; Anhui Province Engineering Laboratory for Green Pesticide Development and Application, Hefei 230036, China; Anhui Province Key Laboratory of Crop Integrated Pest Management, Hefei 230036, China
| | - Yongjie Zhang
- School of Plant Protection, Anhui Agricultural University, Hefei 230036, China; Anhui Province Engineering Laboratory for Green Pesticide Development and Application, Hefei 230036, China; Anhui Province Key Laboratory of Crop Integrated Pest Management, Hefei 230036, China
| | - Chenyang Zhang
- School of Plant Protection, Anhui Agricultural University, Hefei 230036, China; Anhui Province Engineering Laboratory for Green Pesticide Development and Application, Hefei 230036, China; Anhui Province Key Laboratory of Crop Integrated Pest Management, Hefei 230036, China
| | - Min Liao
- School of Plant Protection, Anhui Agricultural University, Hefei 230036, China; Anhui Province Engineering Laboratory for Green Pesticide Development and Application, Hefei 230036, China; Anhui Province Key Laboratory of Crop Integrated Pest Management, Hefei 230036, China
| | - Haiqun Cao
- School of Plant Protection, Anhui Agricultural University, Hefei 230036, China; Anhui Province Engineering Laboratory for Green Pesticide Development and Application, Hefei 230036, China; Anhui Province Key Laboratory of Crop Integrated Pest Management, Hefei 230036, China
| | - Quan Gao
- School of Plant Protection, Anhui Agricultural University, Hefei 230036, China; Anhui Province Engineering Laboratory for Green Pesticide Development and Application, Hefei 230036, China; Anhui Province Key Laboratory of Crop Integrated Pest Management, Hefei 230036, China.
| |
Collapse
|
2
|
Wang Y, Dong H, Qu Y, Zhou Y, Qin J, Li K, Luo C, Ren B, Cao Y, Zhang S, Yin J, Leal WS. Circabidian rhythm of sex pheromone reception in a scarab beetle. Curr Biol 2024; 34:568-578.e5. [PMID: 38242123 DOI: 10.1016/j.cub.2023.12.057] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2023] [Revised: 11/17/2023] [Accepted: 12/18/2023] [Indexed: 01/21/2024]
Abstract
Animals have endogenous clocks that regulate their behavior and physiology. These clocks rely on environmental cues (time givers) that appear approximately every 24 h due to the Earth's rotation; thus, most insects exhibit a circadian rhythm. One notable exception is the scarab beetle, Holotrichia parallela, a severe agricultural pest in China, Japan, South Korea, and India. Females emerge from the soil every other night, reach the canopy of host plants, evert an abdominal gland, and release a pheromone bouquet comprising l-isoleucine methyl ester (LIME) and l-linalool. To determine whether this circa'bi'dian rhythm affects the olfactory system, we aimed to identify H. parallela sex pheromone receptor(s) and study their expression patterns. We cloned 14 odorant receptors (ORs) and attempted de-orphanizing them in the Xenopus oocyte recording system. HparOR14 gave robust responses to LIME and smaller responses to l-linalool. Structural modeling, tissue expression profile, and RNAi treatment followed by physiological and behavioral studies support that HparOR14 is a sex pheromone receptor-the first of its kind discovered in Coleoptera. Examination of the HparOR14 transcript levels throughout the adult's life showed that on sexually active days, gene expression was significantly higher in the scotophase than in the photophase. Additionally, the HparOR14 expression profile showed a circabidian rhythm synchronized with the previously identified pattern of sex pheromone emission. 48 h of electroantennogram recordings showed that responses to LIME were abolished on non-calling nights. In contrast, responses to the green leaf volatile (Z)-3-henexyl acetate remained almost constant throughout the recording period.
Collapse
Affiliation(s)
- Yinliang Wang
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China; Key Laboratory of Vegetation Ecology, Ministry of Education, Northeast Normal University, Changchun 130024, China
| | - Huanhuan Dong
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China; Key Laboratory of Vegetation Ecology, Ministry of Education, Northeast Normal University, Changchun 130024, China
| | - Yafei Qu
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Yuxin Zhou
- Key Laboratory of Vegetation Ecology, Ministry of Education, Northeast Normal University, Changchun 130024, China
| | - Jianhui Qin
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Kebin Li
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Chen Luo
- Institute of Plant Protection, Beijing Academy of Agriculture and Forestry Sciences, Beijing 100097, China
| | - Bingzhong Ren
- Key Laboratory of Vegetation Ecology, Ministry of Education, Northeast Normal University, Changchun 130024, China
| | - Yazhong Cao
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Shuai Zhang
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Jiao Yin
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China.
| | - Walter S Leal
- Department of Molecular and Cellular Biology, University of California, Davis, Davis, CA 95616, USA.
| |
Collapse
|