Article
Multidisciplinary Sciences
Hajar Faal, Peter J. Silk, Peter D. Mayo, Stephen A. Teale
Summary: The study describes the courtship behavior and identification of sex pheromones in Ibalia leucospoides, revealing that four straight-chain alkanes in female body wash are attractive to male I. leucospoides.
Article
Entomology
Xiaobo Liu, Juan Shi, Lili Ren, Youqing Luo
Summary: Through laboratory measurements, we found that the invasive woodwasp, Sirex noctilio, can fly greater distances and for longer durations than the native woodwasp, Sirex nitobei. Nematode parasitism did not significantly affect the flight capacity of either species. For S. noctilio, post-eclosion-day (PED) age and body mass were major factors influencing flight capacity, with flight capacity decreasing as PED age increased. For S. nitobei, PED age did not significantly affect flight capacity, but body mass did.
Article
Entomology
Pengfei Lu, Enhua Hao, Min Bao, Rui Liu, Ciyuan Gao, Haili Qiao
Summary: The mating behavior and pheromone production of two woodwasp species (S. noctilio and S. nitobei) are influenced by multiple factors, including light conditions, individual size, and female-male ratio. Understanding these factors is important for controlling woodwasp populations and can provide strategic guidance for management strategies.
Article
Forestry
Weiwei Wu, Enhua Hao, Bing Guo, Huan Yang, Jingjiang Zhou, Mei Ma, Pengfei Lu, Haili Qiao
Summary: This study compared the odorant, ionotropic, and gustatory receptor genes of woodwasp species Sirex noctilio and Sirex nitobei, and found similarities and differences between them. The antennae were the main organs for chemical perception, and different receptor genes showed different expression patterns in the antennae. The results provide a foundation for further understanding the molecular mechanisms of chemoreception in these closely related woodwasp species.
Article
Entomology
Chengcheng Li, Jiahe Pei, Jiale Li, Xiaobo Liu, Lili Ren, Youqing Luo
Summary: The cold tolerance strategy of overwintering Sirex noctilio larvae is freeze-avoidance, with their supercooling points adjusting seasonally to avoid icing damage. Different populations exhibit varied cold hardiness on a spatiotemporal scale, with harsher environments leading to stronger cold tolerance. Despite tunnels providing some protection, they do not affect the low temperature parameters for S. noctilio distribution. The insect shows a strong cold tolerance and has the ability to survive in cold regions, with a positive trend in geographic populations as ambient temperatures decrease.
Article
Biochemistry & Molecular Biology
Enhua Hao, Xi Yang, Mei Ma, Pengfei Lu, Haili Qiao
Summary: This research aims to investigate the functionality and operational mechanisms of chemosensory proteins 4 (SnocCSP4) in Sirex noctilio, a significant pest impacting Pinus sylvestris var. mongolica. The findings suggest that SnocCSP4 plays a primary role in binding or transporting (-)-Globulol and 10-Oxodecanoic acid, and modifying key amino acids could inform the design of more effective pest control measures.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2023)
Article
Biotechnology & Applied Microbiology
Bing Guo, Enhua Hao, Haili Qiao, Jingzhen Wang, Weiwei Wu, Jingjiang Zhou, Pengfei Lu
Summary: By analyzing the olfactory genes of S. noctilio and S. nitobei, it was found that most of the genes were homologous, but some species-specific genes were also identified. The different expression patterns in antennae, external genitals, or heads, with an obvious sex bias, suggest their distinct roles in recognizing sex pheromones or plant volatiles. The species-specific expression of certain OBPs genes may indicate changes in their function during species differentiation, leading to olfactory differences between the two species.
Article
Microbiology
Jiale Li, Chengcheng Li, Ming Wang, Lixiang Wang, Xiaobo Liu, Chenglong Gao, Lili Ren, Youqing Luo
Summary: This study investigated the gut microbiota of the European woodwasp Sirex noctilio in different developmental stages, revealing Pseudomonas, Ralstonia, and Burkholderia s.l as dominant bacteria across larvae, adults, and frass, and stable fungal communities throughout. Functional prediction suggested these microbial communities might play roles in lignocellulose degradation and nitrogen fixation, providing insights for potential pest management strategies targeting gut microbiota interactions.
FRONTIERS IN MICROBIOLOGY
(2021)
Article
Multidisciplinary Sciences
Quentin Guignard, Johannes Spaethe, Bernard Slippers, Martin Strube-Bloss, Jeremy D. Allison
Summary: The evolution of color vision in Hymenoptera is linked to the diversity of photoreceptor types in the compound eyes, with different species having varying numbers of photoreceptor types. A study on the Symphyta Sirex noctilio revealed two photoreceptor types in the compound eye, with maximal sensitivity at 527 and 364 nm. Additionally, the presence of specific opsins in the genome and their expression in different eye regions suggest that S. noctilio is a UV-green dichromate species.
SCIENTIFIC REPORTS
(2021)
Article
Food Science & Technology
Chenglong Gao, Lili Ren, Ming Wang, Zhengtong Wang, Ningning Fu, Huiying Wang, Xiaochen Wang, Tegen Ao, Wensheng Du, Zijin Zheng, Huadong Li, Juan Shi
Summary: The wood-boring woodwasp Sirex nitobei is a native pest in Asia, causing significant economic and ecological damage in China. This study identified 15,036 unigenes in the venom gland transcriptome of S. nitobei, and predicted 1095 proteins through LC-MS/MS analysis. Seven proteins highly expressed in the venom gland transcriptome and predicted in the crude venom proteome were identified, shedding light on the molecular mechanism of the woodwasp-pine interaction.
Article
Ecology
Hajar Faal, Dong H. Cha, Ann E. Hajek, Stephen A. Teale
Summary: The Eurasian woodwasp is an invasive pest of pines and can optimize its foraging behavior using volatiles emitted by a fungal symbiont. These volatiles can be used as a basis for the development of improved lures for both the woodwasp and its parasitoid.
Article
Entomology
Enhua Hao, Rui Liu, Ruirui Xu, Pengfei Lu, Haili Qiao
Summary: In this study, the ultrastructure of sensilla on the antennae and ovipositor of Sirex noctilio was observed using scanning electron microscopy (SEM). It was found that the types and distribution of sensilla on the antennae of male and female S. noctilio are consistent, with six types of sensilla identified. Additionally, five types of sensilla were found on the female ovipositor. By identifying the morphology and distribution of the sensilla, the functions of different sensilla in the mating and host selection mechanisms of S. noctilio were proposed, providing a foundation for chemical communication research.
ARTHROPOD STRUCTURE & DEVELOPMENT
(2023)
Article
Biochemistry & Molecular Biology
Enhua Hao, Yini Li, Bing Guo, Xi Yang, Pengfei Lu, Haili Qiao
Summary: This study reveals the interaction mechanism between the odorant-binding protein SnocOBP9 and the male pheromone Z3D in Sirex noctilio Fabricius, and confirms the importance of key residues in this process. These findings are significant for improving the effectiveness of pheromone agent traps.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2022)
Article
Entomology
Hajar Faal, Peter J. Silk, Gaetan LeClair, Stephen A. Teale
Summary: In this study, a behaviorally active compound, 10-oxo-decanoic acid (10-ODA), was identified in the body washes of S. noctilio females. This compound showed attractant activity towards male S. noctilio, indicating its potential use as a pheromone lure. However, initial field trapping experiments with 10-ODA did not capture any wasps.
ENTOMOLOGIA EXPERIMENTALIS ET APPLICATA
(2022)
Article
Biology
Yidong Wang, Weizhao Sun, Sonja Fleischmann, Jocelyn G. Millar, Joachim Ruther, Eveline C. Verhulst
Summary: The Dsx gene has a crucial role in regulating sexual morphological differences and sexual behavior in insects. A study on the parasitoid wasp Nasonia vitripennis demonstrates that silencing the NvDsx gene in males leads to feminization at various levels, including reduced pheromone production and altered cuticular hydrocarbon profiles. The study also highlights the importance of a specific alkene, Z9C31, in sex discrimination and mating success in N. vitripennis.
PROCEEDINGS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES
(2022)