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Ayala Costa D, Rezende PH, Salles FF, Desidério GR, Dias G, Lino-Neto J. Morphology of the male reproductive system and spermatozoa of Smicridea (Rhyacophylax) iguazu Flint, 1983 (Trichoptera, Hydropsychidae). ARTHROPOD STRUCTURE & DEVELOPMENT 2024; 79:101344. [PMID: 38412706 DOI: 10.1016/j.asd.2024.101344] [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: 12/13/2023] [Revised: 02/15/2024] [Accepted: 02/15/2024] [Indexed: 02/29/2024]
Abstract
The Trichoptera, holometabolous aquatic insects found worldwide except in Antarctica, exhibit a unique feature in their sperm, which are solely nucleated (eupyrene). Current knowledge on Trichoptera sperm is limited to Old World species. To enhance our understanding of their reproductive biology and contribute to systematic discussions, we describe the male reproductive system and spermatozoa of Smicridea (Rhyacophylax) iguazu Flint, 1983 (Hydropsychidae). This species lacks seminal vesicles, possesses piriform to oval-shaped testes with spermatozoa grouped in apical bundles and dense filamentous material filling other areas. The vasa deferentia are long and a pair of elongated accessory glands displays distinct proximal and distal regions. The relatively short (∼40 μm) spermatozoa are nucleated, aflagellated, and immobile. Further research could explore variations and assess the taxonomic utility of these features for genus identification within Hydropsychidae.
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Affiliation(s)
- Dayvson Ayala Costa
- Departamento de Entomologia, Laboratório de Ultraestrutura Celular, Universidade Federal de Viçosa, 36570-900, Viçosa, Minas Gerais, Brazil.
| | - Paulo Henrique Rezende
- Departamento de Entomologia, Laboratório de Ultraestrutura Celular, Universidade Federal de Viçosa, 36570-900, Viçosa, Minas Gerais, Brazil.
| | - Frederico Falcão Salles
- Departamento de Entomologia, Museu de Entomologia, Universidade Federal de Viçosa, 36570-900, Viçosa, Minas Gerais, Brazil.
| | - Gleison Robson Desidério
- Programa de Apoio à Fixação de Jovens Doutores No Brasil, Laboratório de Citotaxonomia e Insetos Aquáticos, Instituto Nacional de Pesquisas da Amazônia, 69067-375, Manaus, Amazonas, Brazil.
| | - Glenda Dias
- Departamento de Biologia Geral, Laboratório de Ultraestrutura Celular, Universidade Federal de Viçosa, 36570-900, Viçosa, Minas Gerais, Brazil.
| | - José Lino-Neto
- Departamento de Biologia Geral, Laboratório de Ultraestrutura Celular, Universidade Federal de Viçosa, 36570-900, Viçosa, Minas Gerais, Brazil.
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Rapisarda C, Weigand AM, Braun P, Eickermann M. First systematic inventory of the jumping plant lice of Luxembourg (Hemiptera, Sternorrhyncha, Psylloidea). Biodivers Data J 2022; 10:e77571. [PMID: 36761534 PMCID: PMC9848628 DOI: 10.3897/bdj.10.e77571] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2021] [Accepted: 07/01/2022] [Indexed: 11/12/2022] Open
Abstract
Psyllids (superfamily Psylloidea), also known as jumping plant lice, are a group of plant-sap sucking Hemiptera having significant pest status for crops, forest trees and ornamental plants. Only seven species of psyllids have been recorded in Luxembourg so far. An additional group of seven species has been recorded exclusively, based on the findings of their galls or specific plant deformations; but no mention exists in literature on the actual collection of the inducing insect in Luxembourg. To fill this knowledge gap, field collections were carried out during the years 2019-2020. In addition, samples from 1999-2000 stored in the wet collection of the Musée National d'Histoire Naturelle de Luxembourg were studied. This research, in combination with information coming from literature, allowed us to list 48 species of the families Aphalaridae (5 species), Liviidae (5), Psyllidae (24) and Triozidae (14), though the presence of one species within the last family (Triozarhamni) needs to be confirmed. Brief information on geographical distribution, biology and (if available) illustrations of diagnostic characters are provided on the psyllid species detected in Luxembourg so far.
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Affiliation(s)
- Carmelo Rapisarda
- Dipartimento di Agricoltura, Alimentazione e Ambiente (Di3A), Università degli Studi di Catania, Catania, ItalyDipartimento di Agricoltura, Alimentazione e Ambiente (Di3A), Università degli Studi di CataniaCataniaItaly
| | - Alexander M. Weigand
- Musée National d'Histoire Naturelle (MNHNL), Luxembourg, LuxembourgMusée National d'Histoire Naturelle (MNHNL)LuxembourgLuxembourg
| | - Paul Braun
- Musée National d'Histoire Naturelle (MNHNL), Luxembourg, LuxembourgMusée National d'Histoire Naturelle (MNHNL)LuxembourgLuxembourg
| | - Michael Eickermann
- Luxembourg Institute of Science and Technology, Belvaux, LuxembourgLuxembourg Institute of Science and TechnologyBelvauxLuxembourg
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Yang LY, Hua BZ. Spermatheca of the scorpionfly Sinopanorpa tincta (Navás, 1931) (Mecoptera: Panorpidae). PROTOPLASMA 2021; 258:507-515. [PMID: 33169213 DOI: 10.1007/s00709-020-01572-3] [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: 07/19/2020] [Accepted: 10/13/2020] [Indexed: 06/11/2023]
Abstract
The spermathecal structure of the scorpionfly Sinopanorpa tincta (Navás, 1931) was investigated using light microscopy, scanning, and transmission electron microscopy. The spermatheca consists of a bean-shaped spermathecal reservoir and an elongated spermathecal duct. The spermathecal reservoir can be subdivided into a distal portion with well-developed muscles and a proximal transitional portion connected to the spermathecal duct. The spermathecal duct is slender for its basal three-fourths and is greatly thicker for its distal one-fourth, which is mainly responsible for secretory function. A spermathecal pump formed from longitudinal muscle fibers was attached to the reservoir to control the transport of sperm. The lumen of the spermathecal reservoir is lined with a cuticle and filled with spermatozoa after copulation. The epithelium of the distal reservoir comprises a single type of epithelial cells, while the epithelium of the proximal reservoir and the spermathecal duct has three types of cells: secretory cells, duct-forming cells, and common epithelial cells. The secretory cells are rich in mitochondria, rough endoplasmic reticulum, and electron-dense secretory vesicles. The duct-forming cells form cuticular ducts, which connect the secretory cells to the lumen of the spermatheca. The spermathecal reservoir mainly serves as the storage of sperm, but the proximal reservoir as well as the spermathecal duct serves as secretory functions that maintain sperm viability.
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Affiliation(s)
- Lu-Yao Yang
- Key Laboratory of Plant Protection Resources and Pest Management of the Education Ministry, College of Plant Protection, Northwest A&F University, Yangling, 712100, Shaanxi, China
| | - Bao-Zhen Hua
- Key Laboratory of Plant Protection Resources and Pest Management of the Education Ministry, College of Plant Protection, Northwest A&F University, Yangling, 712100, Shaanxi, China.
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Using micro-computed tomography to reveal the anatomy of adult Diaphorina citri Kuwayama (Insecta: Hemiptera, Liviidae) and how it pierces and feeds within a citrus leaf. Sci Rep 2021; 11:1358. [PMID: 33446699 PMCID: PMC7809155 DOI: 10.1038/s41598-020-80404-z] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2020] [Accepted: 12/18/2020] [Indexed: 11/08/2022] Open
Abstract
The Asian citrus psyllid (ACP), Diaphorina citri, is a harmful pest of citrus trees that transmits Candidatus Liberibacter spp. which causes Huanglongbing (HLB) (citrus greening disease); this is considered to be the most serious bacterial disease of citrus plants. Here we detail an anatomical study of the external and internal anatomy (excluding the reproductive system) using micro-computed tomography (micro-CT). This is the first complete 3D micro-CT reconstruction of the anatomy of a psylloid insect and includes a 3D reconstruction of an adult feeding on a citrus leaf that can be used on mobile devices. Detailed rendered images and videos support first descriptions of coxal and scapus antennal glands and sexual differences in the internal anatomy (hindgut rectum, mesothoracic ganglion and brain). This represents a significant advance in our knowledge of ACP anatomy, and of psyllids in general. Together the images, videos and 3D model constitute a unique anatomical atlas and are useful tools for future research and as teaching aids.
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Alba-Alejandre I, Alba-Tercedor J, Hunter WB. Anatomical study of the female reproductive system and bacteriome of Diaphorina citri Kuwayama, (Insecta: Hemiptera, Liviidae) using micro-computed tomography. Sci Rep 2020; 10:7161. [PMID: 32346040 PMCID: PMC7189384 DOI: 10.1038/s41598-020-64132-y] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2019] [Accepted: 04/03/2020] [Indexed: 12/11/2022] Open
Abstract
Huanglongbing (HLB) (citrus greening disease) is one of the most serious bacterial diseases of citrus. It is caused by (1) Candidatus Liberibacter africanus, transmitted by Trioza erytreae and (2) C.L. asiaticus and C.L. americanus, transmitted by Diaphorina citri. As part of a multidisciplinary project on D. citri (www.citrusgreening.org), we made a detailed study, using micro-computed tomography, of the female abdominal terminalia, reproductive system (ovaries, accessory glands, spermatheca, colleterial (= cement) gland, connecting ducts, and ovipositor) and bacteriome, which we present here. New terms and structures are introduced and described, particularly concerning the spermatheca, ovipositor and bacteriome. The quality of images and bacteriome reconstructions are comparable, or clearer, than those previously published using a synchrotron or fluorescence in situ hybridisation (FISH). This study: reviews knowledge of the female reproductive system and bacteriome organ in D. citri; represents the first detailed morphological study of D. citri to use micro-CT; and extensively revises existing morphological information relevant to psylloids, hemipterans and insects in general. High quality images and supplementary videos represent a significant advance in knowledge of psylloid anatomy and are useful tools for future research and as educational aids.
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Affiliation(s)
- Ignacio Alba-Alejandre
- Department of Zoology, Faculty of Sciences, University of Granada, Campus de Fuentenueva, Granada, Spain.
| | - Javier Alba-Tercedor
- Department of Zoology, Faculty of Sciences, University of Granada, Campus de Fuentenueva, Granada, Spain.
| | - Wayne B Hunter
- U.S. Department Agriculture, Agricultural Research Service, Fort Pierce, Florida, USA
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Fife AN, Cruzado K, Rashed A, Novy RG, Wenninger EJ. Potato Psyllid (Hemiptera: Triozidae) Behavior on Three Potato Genotypes With Tolerance to 'Candidatus Liberibacter solanacearum'. JOURNAL OF INSECT SCIENCE (ONLINE) 2020; 20:5820424. [PMID: 32294181 PMCID: PMC7159035 DOI: 10.1093/jisesa/ieaa020] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/30/2019] [Indexed: 06/11/2023]
Abstract
The potato/tomato psyllid Bactericera cockerelli (Šulc) transmits 'Candidatus Liberibacter solanacearum' (Lso) (also known as 'Candidatus Liberibacter psyllaurous'), the bacterium associated with zebra chip disease (ZC) in potato. When disease incidence is high, ZC causes large economic losses through reductions in potato yield and tuber quality. No commercial potato variety has been found totally resistant to the pathogen. We evaluated host acceptance behaviors using no-choice assays on three breeding clones derived from Solanum chacoense Bitter with putative tolerance to Lso and/or ZC as part of an effort to determine whether the disease tolerance observed in those breeding clones was related to effects on psyllid settling behavior. We also counted the number of eggs laid and nymphs hatched on the different genotypes to observe any differences in reproduction. The potato variety 'Russet Burbank' was used as a susceptible control. Probing frequency and female walking duration were greater on Russet Burbank than the other genotypes. Oviposition did not differ among genotypes. However, female psyllids on two of the Lso-tolerant genotypes displayed reduced fertility 18-24 d after confinement with a male, relative to females on Russet Burbank. These results suggest that although the germplasms display minor abiotic activity on psyllid fertility, tolerance to Lso may be more strongly linked with plant tolerance to the pathogen rather than effects on host acceptance behaviors.
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Affiliation(s)
- Austin N Fife
- Kimberly Research and Extension Center, University of Idaho, Kimberly, ID
| | - Karin Cruzado
- Aberdeen Research and Extension Center, University of Idaho, Aberdeen, ID
| | | | - Richard G Novy
- Agricultural Research Service, United States Department of Agriculture, Aberdeen, ID
| | - Erik J Wenninger
- Kimberly Research and Extension Center, University of Idaho, Kimberly, ID
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Wieczorek K, Kanturski M, Sempruch C, Świątek P. The reproductive system of the male and oviparous female of a model organism-the pea aphid, Acyrthosiphon pisum (Hemiptera, Aphididae). PeerJ 2019; 7:e7573. [PMID: 31534847 PMCID: PMC6727839 DOI: 10.7717/peerj.7573] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2019] [Accepted: 07/29/2019] [Indexed: 01/21/2023] Open
Abstract
The structure of the reproductive system of the sexual generation-males and oviparous females-of the pea aphid Acyrthosiphon pisum (Harris) (Hemiptera, Aphididae), a serious pest of cultivated plants of Fabaceae, was investigated. For the first time we describe the morphology, histology and ultrastructure of the reproductive system in both morphs of the sexual generation of aphids within one species, using light and fluorescent microscopy, as well as transmission and scanning electron microscopy. The results revealed that males have testes composed of three follicles fused by the upper ends of the vasa efferentia, the vasa deferentia run independently, the accessory glands are asymmetric and the ejaculatory duct shortened. Oviparous females have ovaries composed of seven ovarioles each. The lateral oviducts join to a short common oviduct connected with the unpaired spermatheca and paired accessory glands. Yolky eggs with an aggregation of symbiotic bacteria at the posterior pole are produced. Histologically, the components of genital tracts are broadly similar: the epithelial cells of the walls of the vasa deferentia and accessory glands of the male and oviparous female have secretory functions which correlate with the age of the studied morphs. We also found symbiotic bacteria within the vasa deferentia epithelial cells in males and within the cells of the lateral oviducts of females. Because the pea aphid is listed among the 14 species that are of the greatest economic importance, our results will be useful for managing aphid populations, protecting plants and ensuring global food security.
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Affiliation(s)
- Karina Wieczorek
- Department of Zoology, University of Silesia in Katowice, Katowice, Poland
| | - Mariusz Kanturski
- Department of Zoology, University of Silesia in Katowice, Katowice, Poland
| | - Cezary Sempruch
- Department of Biochemistry and Molecular Biology, Siedlce University of Natural Sciences and Humanities, Siedlce, Poland
| | - Piotr Świątek
- Department of Animal Histology and Embryology, University of Silesia in Katowice, Katowice, Poland
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Lyu QH, Hua BZ. Ultrastructure of male accessory glands in the scorpionfly Sinopanorpa tincta (Navás, 1931) (Mecoptera: Panorpidae). ARTHROPOD STRUCTURE & DEVELOPMENT 2017; 46:627-634. [PMID: 28435074 DOI: 10.1016/j.asd.2017.04.001] [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: 01/02/2017] [Revised: 04/13/2017] [Accepted: 04/18/2017] [Indexed: 06/07/2023]
Abstract
The ultrastructure of male reproductive accessory glands was investigated in the scorpionfly Sinopanorpa tincta (Navás, 1931) (Mecoptera: Panorpidae) using light and transmission electron microscopy. The male accessory glands comprise one pair of mesodermal glands (mesadenia) and six pairs of ectodermal glands (ectadenia). The former opens into the vasa deferentia and the latter into the ejaculatory sac. The mesadenia consist of a mono-layered elongated columnar epithelium, the cells of which are highly microvillated and extrude secretory granules by means of merocrine mechanisms. The epithelium of ectadenia consists of two types of cells: the large secretory cells and the thin duct-forming cells. These two types of cells that join with a cuticular duct constitute a functional glandular unit, corresponding to the class III glandular cell type of Noirot and Quennedey. The cuticular duct consists of a receiving canal and a conducting canal. The secretory granules were taken up by the receiving canal and then plunged into the lumen through the conducting canal.
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Affiliation(s)
- Qi-Hui Lyu
- State Key Laboratory of Crop Stress Biology for Arid Areas, Key Laboratory of Plant Protection Resources and Pest Management of the Education Ministry, Entomological Museum, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Bao-Zhen Hua
- State Key Laboratory of Crop Stress Biology for Arid Areas, Key Laboratory of Plant Protection Resources and Pest Management of the Education Ministry, Entomological Museum, Northwest A&F University, Yangling, Shaanxi 712100, China.
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9
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Parker DJ, Zaborowska J, Ritchie MG, Vahed K. Paternity analysis of wild-caught females shows that sperm package size and placement influence fertilization success in the bushcricketPholidoptera griseoaptera. Mol Ecol 2017; 26:3050-3061. [DOI: 10.1111/mec.14089] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2016] [Revised: 02/23/2017] [Accepted: 02/27/2017] [Indexed: 11/29/2022]
Affiliation(s)
- Darren James Parker
- Centre for Biological Diversity; University of St Andrews; St Andrews KY16 9TH UK
- Department of Ecology and Evolution; University of Lausanne; Biophore Lausanne 1015 Switzerland
| | - Julia Zaborowska
- Centre for Biological Diversity; University of St Andrews; St Andrews KY16 9TH UK
- Institute of Environmental Sciences; Jagiellonian University; Gronostajowa 7 30-387 Kraków Poland
- Institute of Environmental Biology; Adam Mickiewicz University in Poznań; Umultowska 89 61-614 Poznań Poland
| | | | - Karim Vahed
- Environmental Sustainability Research Centre; University of Derby; Kedleston Road Derby DE22 1GB UK
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Pascini TV, Martins GF. The insect spermatheca: an overview. ZOOLOGY 2017; 121:56-71. [DOI: 10.1016/j.zool.2016.12.001] [Citation(s) in RCA: 55] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2016] [Revised: 09/10/2016] [Accepted: 12/01/2016] [Indexed: 12/20/2022]
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Vitale DGM, D’Urso V, Viscuso R. Morphostructural investigation on spermatozoa and sperm bundles of the leafhopper Balclutha brevis Lindberg 1954 (Hemiptera: Deltocephalinae). ZOOMORPHOLOGY 2016. [DOI: 10.1007/s00435-016-0323-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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12
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Morphostructural investigation of the female reproductive system and molecular evidence for Wolbachia in Balclutha brevis Lindberg 1954 (Hemiptera, Cicadellidae). Micron 2016; 81:23-33. [DOI: 10.1016/j.micron.2015.12.003] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2015] [Revised: 12/10/2015] [Accepted: 12/12/2015] [Indexed: 01/11/2023]
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13
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Ultrastructure of the salivary glands, alimentary canal and bacteria-like organisms in the Asian citrus psyllid, vector of citrus huanglongbing disease bacteria. J Microsc Ultrastruct 2016; 5:9-20. [PMID: 30023232 PMCID: PMC6014262 DOI: 10.1016/j.jmau.2016.01.005] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2015] [Revised: 01/20/2016] [Accepted: 01/26/2016] [Indexed: 11/22/2022] Open
Abstract
The Asian citrus psyllid (ACP, Diaphorina citri, Hemiptera: Liviidae) is the principal vector of Candidatus Liberibacter asiaticus (Las), the putative bacterial agent of citrus greening/huanglongbing (HLB); currently the most serious citrus disease worldwide. Las is transmitted in a persistent–propagative manner by ACP, and the salivary glands and midgut have been suggested as transmission barriers that can impede translocation of Las within the vector. However, no detailed ultrastructural studies have been reported on these organs in this or other psyllid species, although some bacterium-like structures have been described in them and assumed to be the causal agents of HLB. In this study, we describe the ultrastructure of the salivary glands, filter chamber, other parts of the alimentary canal, and other organs and tissues of ACP including the compound ganglionic mass (in the thorax) and the bacteriome (in the abdomen). Furthermore, in addition to two ultrastructurally apparently different symbiotic bacteria found in the bacteriome, other morphological types of bacteria were found in the gut epithelial cells and salivary glands of both Las-infected (quantitative polymerase chain reaction positive) and noninfected (quantitative polymerase chain reaction negative) ACP. These results show the importance of immunolabeling, fluorescence in situ hybridization, or other labeling techniques that must be used before identifying any bacterium-like structures in ACP or other vectors as Las or other possible agents of HLB. This ultrastructural investigation should help future work on the cellular and subcellular aspects of pathogen–psyllid relationships, including the study of receptors, binding sites, and transmission barriers of Las and other pathogens within their psyllid vectors.
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Viscuso R, Vitale DGM. Spermatodesm reorganization in the spermatophore and in the spermatheca of the bushcricket Tylopsis liliifolia (Fabricius) (Orthoptera, Tettigoniidae). ARTHROPOD STRUCTURE & DEVELOPMENT 2015; 44:243-252. [PMID: 25863326 DOI: 10.1016/j.asd.2015.03.004] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/07/2014] [Revised: 10/14/2014] [Accepted: 03/25/2015] [Indexed: 06/04/2023]
Abstract
Spermatozoa of Tettigoniidae are usually transferred to the female by means of a spermatophore which is also the site of feather-shaped spermatodesm formation. These spermatodesms are then transferred to a spermatheca, composed of a spermathecal duct and of a seminal receptacle, involved in storing spermatozoa. In order to extend the knowledge about sperm transfer and spermatodesms reorganization in the Tettigoniidae, a morpho-structural investigation was carried out on spermatophore and spermatheca of Tylopsis liliifolia and on the reorganization of the gametes from the spermatophore. Our results show that the spermatodesms undergo disorganization in the spermatophore; unlike other Tettigoniidae, however, feather-shaped spermatodesms are never found. The epithelium of the spermatheca consists of two cell types, the cuticle-forming and the gland cells, with secretory features. The gland cells, absent in the distal tract of the seminal receptacle, release their secretion in a "reservoir" where an efferent duct opens. In the distal tract of the spermathecal duct, adjacent epithelial cells show diversified ultrastructural characteristics whose probable role is discussed. A particular feature of T. liliifolia is the genesis of the feather-shaped spermatodesms in the seminal receptacle. This feature and the peculiar organization of the feather-shaped spermatodesm are a possible autapomorphy of T. liliifolia.
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Affiliation(s)
- Renata Viscuso
- Department of Biological, Geological and Environmental Sciences, Section of Animal Biology "M. La Greca", University of Catania, Via Androne 81, 95124, Catania, Italy.
| | - Danilo G M Vitale
- Department of Biological, Geological and Environmental Sciences, Section of Animal Biology "M. La Greca", University of Catania, Via Androne 81, 95124, Catania, Italy.
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15
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Viscuso R, Camiolo G, Vitale DG. Light and electron microscopy study of the spermatheca ofEupholidoptera chabrieri bimucronata(Ramme, 1927) andUromenus brevicollis trinacriaeLa Greca 1964 (Orthoptera: Tettigoniidae). Microsc Res Tech 2015; 78:577-86. [DOI: 10.1002/jemt.22511] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2015] [Revised: 04/01/2015] [Accepted: 04/08/2015] [Indexed: 11/11/2022]
Affiliation(s)
- Renata Viscuso
- Dipartimento Di Scienze Biologiche; Geologiche E Ambientali, Sezione Di Biologia Animale “Marcello La Greca”, Università Degli Studi Di Catania; Catania 95124 Italy
| | - Giuseppina Camiolo
- Dipartimento Di Scienze Biologiche; Geologiche E Ambientali, Sezione Di Biologia Animale “Marcello La Greca”, Università Degli Studi Di Catania; Catania 95124 Italy
| | - Danilo G.M. Vitale
- Dipartimento Di Scienze Biologiche; Geologiche E Ambientali, Sezione Di Biologia Animale “Marcello La Greca”, Università Degli Studi Di Catania; Catania 95124 Italy
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Bacteria of the genus Erwinia found in the spermatheca of the laurel psyllid Trioza alacris. Arch Microbiol 2014; 196:901-5. [DOI: 10.1007/s00203-014-1039-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2014] [Revised: 09/17/2014] [Accepted: 09/19/2014] [Indexed: 11/26/2022]
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17
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Vitale DGM, Viscuso R. Ultrastructural organization of the genital tracts in amphigonic females ofEuceraphis betulaeKoch (Aphididae: Calaphidinae). ACTA ZOOL-STOCKHOLM 2013. [DOI: 10.1111/azo.12053] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Danilo G. M. Vitale
- Department of Biological, Geological and Environmental Sciences; Section of Animal Biology “Marcello La Greca”; University of Catania; via Androne 81 95125 Catania Italy
| | - Renata Viscuso
- Department of Biological, Geological and Environmental Sciences; Section of Animal Biology “Marcello La Greca”; University of Catania; via Androne 81 95125 Catania Italy
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