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Yang W, Lu Y, He X, Wang L, Nie J, Saba NU, Su X, Xing L, Ye C. Antennal excision reveals disparate olfactory expression patterns within castes in Reticulitermes aculabialis (Isoptera: Rhinotermitidae). ARTHROPOD STRUCTURE & DEVELOPMENT 2024; 78:101326. [PMID: 38176178 DOI: 10.1016/j.asd.2023.101326] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/07/2023] [Revised: 12/04/2023] [Accepted: 12/04/2023] [Indexed: 01/06/2024]
Abstract
In lower termites, which exhibit a high degree of compound eye degradation or absence, antennae play a pivotal role in information acquisition. This comprehensive study investigates the olfactory system of Reticulitermes aculabialis, spanning five developmental stages and three castes. Initially, we characterize the structures and distribution of antennal sensilla across different developmental stages. Results demonstrate variations in sensilla types and distributions among stages, aligning with caste-specific division of labor and suggesting their involvement in environmental sensitivity detection, signal differentiation, and nestmate recognition. Subsequently, we explore the impact of antennal excision on olfactory gene expression in various caste categories through transcriptomics, homology analysis, and expression profiling. Findings reveal that olfactory genes expression is influenced by antennal excision, with outcomes varying according to caste and the extent of excision. Finally, utilizing fluorescence in situ hybridization, we precisely localize the expression sites of olfactory genes within the antennae. This research reveals the intricate and adaptable nature of the termite olfactory system, highlighting its significance in adapting to diverse ecological roles and demands of social living.
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Affiliation(s)
- Wenxu Yang
- College of Life Sciences, Northwest University, Xi'an, China
| | - Yan Lu
- College of Life Sciences, Northwest University, Xi'an, China
| | - Xiaohui He
- College of Life Sciences, Northwest University, Xi'an, China
| | - Lu Wang
- College of Life Sciences, Northwest University, Xi'an, China
| | - Jinjuan Nie
- College of Life Sciences, Northwest University, Xi'an, China
| | - Noor Us Saba
- College of Life Sciences, Northwest University, Xi'an, China
| | - Xiaohong Su
- College of Life Sciences, Northwest University, Xi'an, China
| | - Lianxi Xing
- College of Life Sciences, Northwest University, Xi'an, China
| | - Chenxu Ye
- College of Life Sciences, Northwest University, Xi'an, China.
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Hazarika HN, Khanikor B. Integration of morphological and molecular taxonomic characters for identification of Odontoponera denticulata (Hymenoptera: Formicidae: Ponerinae) with the description of the antennal sensilla. ZOOL ANZ 2021. [DOI: 10.1016/j.jcz.2021.05.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Liu YQ, Li J, Ban LP. Morphology and Distribution of Antennal Sensilla in Three Species of Thripidae (Thysanoptera) Infesting Alfalfa Medicago sativa. INSECTS 2021; 12:insects12010081. [PMID: 33477621 PMCID: PMC7831480 DOI: 10.3390/insects12010081] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/23/2020] [Revised: 01/13/2021] [Accepted: 01/15/2021] [Indexed: 11/16/2022]
Abstract
Thrips are important pests to alfalfa Medicago sativa. Similar as many other plant-feeding insects, thrips rely on the antennae to receive chemical signals in the environment to locate their hosts. Previous studies indicated that sensilla of different shapes on the surface of insect antenna play an important role in signal recognition. However, morphological analysis of the antennal sensilla in Thysanoptera has been limited to only a few species. To expand the understanding of how antennal sensilla are related to semiochemical detection in thrips, here we compared the morphology and distribution of antennal sensilla in three thrip species, Odontothrips loti, Megalurothrips distalis, and Sericothrips kaszabi, by scanning electron microscope (SEM). The antennae of these three species are all composed of eight segments and share similar types of sensilla which distribute similarly in each segment, despite that their numbers show sexual dimorphism. Specifically, nine major types of sensilla in total were found, including three types of sensilla basiconica (SBI, SBII, and SBIII), two types of sensilla chaetica (SChI and SChII), and one type for each of sensilla coeloconica (SCo), sensilla trichodea (ST), sensilla campaniformia (SCa), and sensilla cavity (SCav). The potential functions of sensilla were discussed according to the previous research results and will lay a morphological foundation for the study of the olfactory mechanism of three species of thrips.
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Wang XS, Shaukat A, Han Y, Yang B, Tang LD, Wu JH. Morphology and Distribution of the Antennal Sensilla of Two Species, Megalurothrips usitatus and Thrips palmi (Thysanoptera: Thripidae). INSECTS 2019; 10:insects10080251. [PMID: 31443161 PMCID: PMC6723325 DOI: 10.3390/insects10080251] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/31/2019] [Revised: 08/07/2019] [Accepted: 08/13/2019] [Indexed: 11/20/2022]
Abstract
The morphology and distribution of the antennal sensilla of Megalurothrips usitatus Bagnall and Thrips palmi Karny were examined using scanning electron microscopy (SEM). These are serious pests of various economically important crops, and their antennae are important in chemical communication. The antennae of both species consist of a scape, pedicel, and flagellum, but the flagellum of M. usitatus is made up of six sub-segments, whereas that of T. palmi consists of five sub-segments. Seven morphological sensilla types, including Böhm bristle (BB), sensilla campaniformia (Sca), three types of sensilla basiconica (Sb1, Sb2 and Sb3), two types of sensilla chaetica (Sch1 and Sch2), sensilla styloconica (Sst), sensilla trichodea (St), and sensilla cavity (Scav), were recorded in both species. The scape and pedicels exhibited Sch1, BB and Sca. The flagellum exhibited two types of Sch, three types of Sb, St, Sst and Scav. Based on these results, the putative function of the sensilla of M. usitatus and T. palmi are also discussed.
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Affiliation(s)
- Xiao-Shuang Wang
- Key Laboratory of Bio-Pesticide Innovation and Application, Engineering Technology Research Center of Pest Biocontrol, College of Agriculture, South China Agricultural University, Guangzhou 510642, China
| | - Ali Shaukat
- Key Laboratory of Bio-Pesticide Innovation and Application, Engineering Technology Research Center of Pest Biocontrol, College of Agriculture, South China Agricultural University, Guangzhou 510642, China
| | - Yun Han
- Key Laboratory of Bio-Pesticide Innovation and Application, Engineering Technology Research Center of Pest Biocontrol, College of Agriculture, South China Agricultural University, Guangzhou 510642, China
| | - Bo Yang
- Key Laboratory of Bio-Pesticide Innovation and Application, Engineering Technology Research Center of Pest Biocontrol, College of Agriculture, South China Agricultural University, Guangzhou 510642, China
| | - Liang-De Tang
- Key Laboratory of Integrated Pest Management on Tropical Crops, Ministry of Agriculture, Environment and Plant Protection Institute, Chinese Academy of Tropical Agricultural Sciences, Haikou 571101, China.
| | - Jian-Hui Wu
- Key Laboratory of Bio-Pesticide Innovation and Application, Engineering Technology Research Center of Pest Biocontrol, College of Agriculture, South China Agricultural University, Guangzhou 510642, China.
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Zhu W, Zhou S, Wang S, Han D, Chen J, Fu Y. Ultrastructure and distribution of antennal sensilla of the chilli thrips Scirtothrips dorsalis hood (Thysanoptera: Thripidae). Microsc Res Tech 2017; 80:1283-1296. [PMID: 28833941 DOI: 10.1002/jemt.22926] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2017] [Revised: 07/19/2017] [Accepted: 08/05/2017] [Indexed: 12/21/2022]
Abstract
The chilli thrips, Scirtothrips dorsalis Hood, is a serious pest of numerous important vegetable and ornamental crops. Various signals, especially phytochemical cues, determine the behavior of the phytophagous thrips at host selection. The sensory abilities of S. dorsalis are poorly understood although the antennae of adult are known to possess important sensory structures in orther insects. In this study, the morphology, distribution, and ultrastructure of the antennal sensilla of the S. dorsalis were examined by using scanning and transmission electron microscopy. Microscopy observations revealed that adult male and female S. dorsalis possess filiform antennae. Each antenna comprises a scape, a pedicel, and a flagellum composed of six segments without clear sexual dimorphism in the number and distribution of antennal sensilla. The scape and pedicel exhibit Böhm's bristles, sensilla chaetica, and sensilla campaniform. The external structures of these organs reveal their mechanosensory function. In the flagellum, the most represented sensilla are the multiporous sensilla basiconica, which can be divided into three types of single-walled olfactory sensilla; three types of sensilla chaetica with mechanosensory and gustatory functions; sensilla coeloconica, which possess hollow cuticular spoke channels and represent double-walled olfactory sensilla; sensilla capitula and sensilla cavity with thermo-hygrosensory functions; and aporous sensilla trichodea with smooth cuticula and mechanosensory function. The putative function of described sensilla is discussed in ralation to host plant selection behavior of S. dorsalis.
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Affiliation(s)
- Wenjing Zhu
- Institute of Tropical Agriculture and Forestry, Hainan University, Haikou 571701, China.,Environment and Plant Protection Institute, Chinese Academy of Tropical Agricultural Sciences, Haikou 571101, China
| | - Shihao Zhou
- Institute of Tropical Agriculture and Forestry, Hainan University, Haikou 571701, China
| | - Shijie Wang
- Environment and Plant Protection Institute, Chinese Academy of Tropical Agricultural Sciences, Haikou 571101, China
| | - Dongyin Han
- Environment and Plant Protection Institute, Chinese Academy of Tropical Agricultural Sciences, Haikou 571101, China
| | - Junyu Chen
- Environment and Plant Protection Institute, Chinese Academy of Tropical Agricultural Sciences, Haikou 571101, China
| | - Yueguan Fu
- Environment and Plant Protection Institute, Chinese Academy of Tropical Agricultural Sciences, Haikou 571101, China
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Zhang L, Feng YQ, Ren LL, Luo YQ, Wang F, Zong SX. Sensilla on antenna, ovipositor and leg ofEriborus applicitus(Hymenoptera: Ichneumonidae), a parasitoid wasp ofHolcocerus insularisstaudinger (Lepidoptera: Cossidae). ACTA ZOOL-STOCKHOLM 2014. [DOI: 10.1111/azo.12073] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Affiliation(s)
- Lu Zhang
- Beijing Key Laboratory of Forest Pest Control; Beijing Forestry University; Beijing 100083 China
| | - Yu-qian Feng
- Beijing Key Laboratory of Forest Pest Control; Beijing Forestry University; Beijing 100083 China
| | - Li-li Ren
- Beijing Key Laboratory of Forest Pest Control; Beijing Forestry University; Beijing 100083 China
| | - You-qing Luo
- Beijing Key Laboratory of Forest Pest Control; Beijing Forestry University; Beijing 100083 China
| | - Feng Wang
- Control and Quarantine Station of Forest pest; Huairou District, Beijing 101400 China
| | - Shi-xiang Zong
- Beijing Key Laboratory of Forest Pest Control; Beijing Forestry University; Beijing 100083 China
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De Facci M, Wang HL, Yuvaraj JK, Dublon IAN, Svensson GP, Chapman TW, Anderbrant O. Chemical composition of anal droplets of the eusocial gall-inducing thrips Kladothrips intermedius. CHEMOECOLOGY 2014. [DOI: 10.1007/s00049-014-0147-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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