International Journal of Insect Morphology and Embryology最新文献_第9页

Comparison of crustacean and insect mechanoreceptive setae 甲壳类与昆虫机械受感刚毛之比较

International Journal of Insect Morphology and Embryology Pub Date : 1997-07-01 DOI: 10.1016/S0020-7322(97)00020-2

Yves Crouau

{"title":"Comparison of crustacean and insect mechanoreceptive setae","authors":"Yves Crouau","doi":"10.1016/S0020-7322(97)00020-2","DOIUrl":"10.1016/S0020-7322(97)00020-2","url":null,"abstract":"<div>Mechanosensitive cells of crustacean setae show important cytological differences compared with those of insects. The mechanosensitive cells in arthropod setae can be classified in 2 groups, which are structurally and functionally different. The typical mechanosensitive cells of insect setae show a tubular body at the tip of their dendrites, whereas mechanosensitive cells of aquatic crustaceans never show such a structure and are characterized by a 9 + 0 cilium, a large ciliary root and a scolopale cell. Among crustaceans, mechanosensory cells with a tubular body are observed only in terrestrial isopods. Therefore, it seems that the type of mechanosensitive cell associated with an arthropod seta is linked more to the physical environment than to the systematic group. It is also linked to differences in the kind of mechanosensitivity of the 2 types of cells: dendrites with a tubular body are compression-sensitive, whereas dendrites with a 9 + 0 type cilium would be stretch-sensitive. The presence of one type of cell in the terrestrial organisms and of the other in the aquatic animals may be explained by the physical characteristics of the environment.</div>","PeriodicalId":100701,"journal":{"name":"International Journal of Insect Morphology and Embryology","volume":"26 3","pages":"Pages 181-190"},"PeriodicalIF":0.0,"publicationDate":"1997-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/S0020-7322(97)00020-2","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86229956","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 28

Introductory remarks 引言

International Journal of Insect Morphology and Embryology Pub Date : 1997-07-01 DOI: 10.1016/S0020-7322(97)00016-0

Thomas A. Keil, Rudolph Alexander Steinbrecht

引用次数: 0

Comparative morphology and moulting of sensilla basiconica of Lepisma saccharina linnaeus (Zygentoma: Lepismatidae) and Machilis sp. (Archaeognatha: Machilidae)

International Journal of Insect Morphology and Embryology Pub Date : 1997-07-01 DOI: 10.1016/S0020-7322(97)00018-4

Jutta Berg, Konrad Schmidt

{"title":"Comparative morphology and moulting of sensilla basiconica of Lepisma saccharina linnaeus (Zygentoma: Lepismatidae) and Machilis sp. (Archaeognatha: Machilidae)","authors":"Jutta Berg, Konrad Schmidt","doi":"10.1016/S0020-7322(97)00018-4","DOIUrl":"10.1016/S0020-7322(97)00018-4","url":null,"abstract":"<div>Comparative morphological studies of the different types of sensilla basiconica of Lepisma saccharina (Zygentoma: Lepismatidae) and Machilis sp. (Archaeognatha: Machilidae) revealed 3 types in Machilis (sensillum basiconicum types A–C) and 4 types in Lepisma (sensillum basiconicum types D–G). No-pore sensilla (sensillum basiconicum types A, B and D) were found in both species. The organization plan corresponds to that of no-pore sensilla of pterygotan insects. Original characters are doubled basal bodies and a larger number of sense cells. L. saccharina possesses both single-walled (sensillum basiconicum types F and G) and double-walled sensilla (sensillum basiconicum type E). Machilis possesses only single-walled sensilla (sensillum basiconicum type C). For the first time a double-walled sensillum is described in apterygotan insects. The sensillum basiconicum type E is a typical double-walled sensillum but with only one circle of spoke canals near the tip of the hair shaft. A sensillum with spoke canals, but with a single wall, is also found in L. saccharina (sensillum basiconicum type G). The organization plan of the multiporous sensilla with pore tubules of Lepisma and Machilis corresponds to that of the multiporous sensilla of pterygotan insects. Sensillum basiconicum type F of Lepisma shows a peculiarity in that it is a “doubled sensillum”. All sensilla basiconica described in both Lepisma and Machilis have 4 enveloping cells and the position of the moulting porus is at the tip of the hair shaft.</div>","PeriodicalId":100701,"journal":{"name":"International Journal of Insect Morphology and Embryology","volume":"26 3","pages":"Pages 161-172"},"PeriodicalIF":0.0,"publicationDate":"1997-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/S0020-7322(97)00018-4","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73178299","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 16

Comparative morphogenesis of sensilla: A review 感受器形态发生的比较研究进展

International Journal of Insect Morphology and Embryology Pub Date : 1997-07-01 DOI: 10.1016/S0020-7322(97)00017-2

Thomas A. Keil

{"title":"Comparative morphogenesis of sensilla: A review","authors":"Thomas A. Keil","doi":"10.1016/S0020-7322(97)00017-2","DOIUrl":"10.1016/S0020-7322(97)00017-2","url":null,"abstract":"<div>The “typical” insect sensillum is formed by a fixed number of cells: one or several bipolar sensory neurons are enveloped by the glia-like thecogen, the trichogen, and the tormogen cells. These cells arise via differential mitoses from an epidermal sensillum mother cell, which is “singled out” in the epidermis by the action of proneural and neurogenic genes, and then inhibits its neighbours from becoming sensillum mother cells themselves (“lateral inhibition”). Morphogenesis begins with the formation of a primary ciliary dendrite (9 × 2 + 0) by the neuron that grows above the epidermal surface. The trichogen cell then develops an apical sprout backed by a microtubular cytoskeleton, which will secrete the cuticle of the sensory hair, whereas the tormogen cell forms the hair socket. After finishing cuticle formation, both cells retract and form the subcuticular sensillum lymph cavity. In hemimetabolous insects preparing for molting, the dendrite leaves the new sensillum via an apical or a lateral pore, remaining connected with the old sensillum. During adult development of holometabolous insects, the primary dendrites also project from the newly forming hairs, being lost when cuticle secretion starts. The definite sensory dendrites grow into the hair shaft, whereas the trichogen cell retracts from the latter in most species.</div>","PeriodicalId":100701,"journal":{"name":"International Journal of Insect Morphology and Embryology","volume":"26 3","pages":"Pages 151-160"},"PeriodicalIF":0.0,"publicationDate":"1997-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/S0020-7322(97)00017-2","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83098429","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 97

Topochemistry of moth olfactory sensilla 飞蛾嗅感器的拓扑化学

International Journal of Insect Morphology and Embryology Pub Date : 1997-07-01 DOI: 10.1016/S0020-7322(97)00023-8

Michael Laue, Rudolph Alexander Steinbrecht

{"title":"Topochemistry of moth olfactory sensilla","authors":"Michael Laue, Rudolph Alexander Steinbrecht","doi":"10.1016/S0020-7322(97)00023-8","DOIUrl":"10.1016/S0020-7322(97)00023-8","url":null,"abstract":"<div>Fine structure immunocytochemistry permitted the localization of proteins, which are presumably relevant to olfactory signal transduction in the olfactory sensilla of the silkmoths Bombyx mori (Lepidoptera: Bombycidae), Antheraea pernyi and Antheraea polyphemus (Lepidoptera: Saturniidae). Odorant-binding proteins of different classes, pheromone-binding protein and general odorant-binding protein 2, were localized in different olfactory sensilla. The expression pattern of these proteins among the population of olfactory sensilla was analysed and correlated with the olfactory specificity of sensilla. The results support the notion that odorant-binding proteins may play a multifunctional role in olfactory signal transduction. Further immunocytochemical experiments concerned the intracellular signalling pathways. A G-protein of the Gq-family and an inositol 1,4,5-trisphosphate-receptor, which is an inositol 1,4,5-trisphosphate-dependent Ca2+ —channel, were localized in the receptive dendrites of olfactory receptor cells and other parts of the neuroepithelium. Both molecules are involved in the inositol 1,4, 5-trisphosphate/diacylglycerol second messenger pathway, which is supposed to mediate olfactory signal transduction in insects. Calmodulin, an ubiquitous calcium-binding protein, and calcineurin, a Ca2+/calmodulin-regulated phosphatase, were also localized at high labelling densities in the dendrites of olfactory receptor cells. This co-expression and the finding that a Ca2+-channel (the inositol 1,4,5-trisphosphate-receptor) is localized in the receptor cell dendrites supports the notion that calcium plays a role in olfactory signal transduction. Finally, a possible nitric oxide-synthase was localized in the haemolymph, which suggests that the localized form of the enzyme has no functional relevance for olfactory signal transduction.</div>","PeriodicalId":100701,"journal":{"name":"International Journal of Insect Morphology and Embryology","volume":"26 3","pages":"Pages 217-228"},"PeriodicalIF":0.0,"publicationDate":"1997-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/S0020-7322(97)00023-8","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78727751","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 52

Cytoskeletal elements in insect sensilla 昆虫感受器的细胞骨架成分

International Journal of Insect Morphology and Embryology Pub Date : 1997-07-01 DOI: 10.1016/S0020-7322(97)00021-4

Uwe Wolfrum

{"title":"Cytoskeletal elements in insect sensilla","authors":"Uwe Wolfrum","doi":"10.1016/S0020-7322(97)00021-4","DOIUrl":"10.1016/S0020-7322(97)00021-4","url":null,"abstract":"<div>Insect sensilla have evolved prominent cytoskeletal elements as part of their functional specialization. The cytoskeleton present in sensory cells as well as in auxiliary cells may play an important role in sensilla function. The scolopale, the characteristic cytoskeletal component in the innermost auxiliary cell of mechanosensitive scolopidia and thermo-/hygrosensitive sensilla, is mainly composed of bundles of 10 nm filaments. Cytochemical approaches for light and electron microscopy identified these structures as actin filaments that exhibited a unique filament orientation and uniform filament polarity. None of these approaches has provided evidence for the presence of myosins in the scolopale. In contrast, tropomyosin and the microtubule-associated protein 2 are associated with the actin filament bundles in the scolopale of scolopidia. All data taken together suggest that the actin filaments of scolopale have a stabilizing rather than a contractile function. In scolopidia, in addition to cellular stabilization, filament elasticity would appear to be important during stimulation. Owing to the high number of microtubules, the scolopale in thermo-/hygrosensitive sensilla seems more rigid than in scolopidia and may protect sensory dendrites from mechanical forces. In sensory cells of scolopidia, regularly cross-striated ciliary rootlets are additional prominent cytoskeletal structures. Immunohistochemistry reveals that these rootlets contain the Ca2+-binding protein centrin, which forms contractile filaments in other systems, e.g., unicellular green algae. Accordingly, contractions of ciliary rootlets may also be part of the filament function in insect sensilla.</div>","PeriodicalId":100701,"journal":{"name":"International Journal of Insect Morphology and Embryology","volume":"26 3","pages":"Pages 191-203"},"PeriodicalIF":0.0,"publicationDate":"1997-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/S0020-7322(97)00021-4","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74303756","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 22

Organization of the lamina ganglionaris of the optic lobe of the butterfly Pararge aegeria (Linné) (Lepidoptera : Satyridae) 斑蝶(linn<s:1>)视叶神经节膜的组织(鳞翅目:斑蝶科)

International Journal of Insect Morphology and Embryology Pub Date : 1997-04-01 DOI: 10.1016/S0020-7322(96)00015-3

Barbara Hämmerle, Gertrud Kolb

{"title":"Organization of the lamina ganglionaris of the optic lobe of the butterfly Pararge aegeria (Linné) (Lepidoptera : Satyridae)","authors":"Barbara Hämmerle, Gertrud Kolb","doi":"10.1016/S0020-7322(96)00015-3","DOIUrl":"10.1016/S0020-7322(96)00015-3","url":null,"abstract":"<div>The present work reports on a neuroanatomical study of the butterfly Pararge aegeria (Lepidoptera : Satyridae) focusing on the lamina ganglionaris underlying two different regions of the retina of the compound eye: the dorsal rim area and the large dorsal region. No differences between both lamina regions, concerning the structure of the cartridges and the morphology of the identified neurons, could be detected. After passing the basement membrane, the visual cell axons are organized in retinotopic bundles (pseudocartridges), in which the axons of the 9 visual cells (V1 and 5, D2, 4, 6, 8, H3 and 7, B9) are arranged in the same way as in the retina. In the pseudocartridge there are no synaptic contacts. Before entering the lamina cartridge, the bundles rotate 90 °. The cartridges are joined by the fibres of 4 monopolar cells (L1, L2, L3 and L4), which could be identified and located inside the lamina cartridges in serial EM-sections. Golgi impregnations revealed the morphology of these fibres. Thus, the regional specialization of the retina (dorsal rim area and large dorsal region) does not seem to be reflected at the level of the first visual neuropil. Additionally, the cartridges of both lamina regions were investigated qualitatively for synaptic contacts among fibres. In addition to monadic chemical synapses and multiple contact synapses with presynaptic ribbons, cell contacts are also facilitated by invaginations and bridges. These cellular interactions and their functional implications are discussed.</div>","PeriodicalId":100701,"journal":{"name":"International Journal of Insect Morphology and Embryology","volume":"26 2","pages":"Pages 139-147"},"PeriodicalIF":0.0,"publicationDate":"1997-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/S0020-7322(96)00015-3","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84116144","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

Distribution of olfactory and some other antennal sensilla in the male click beetle Agriotes obscurus L. (Coleoptera : Elateridae) 雄性叩头甲虫嗅觉及触角感受器的分布(鞘翅目:叩头科)

International Journal of Insect Morphology and Embryology Pub Date : 1997-04-01 DOI: 10.1016/S0020-7322(97)00013-5

Enno Merivee , Mart Rahi , Anne Luik

{"title":"Distribution of olfactory and some other antennal sensilla in the male click beetle Agriotes obscurus L. (Coleoptera : Elateridae)","authors":"Enno Merivee , Mart Rahi , Anne Luik","doi":"10.1016/S0020-7322(97)00013-5","DOIUrl":"10.1016/S0020-7322(97)00013-5","url":null,"abstract":"<div>The distribution of 5 types of sensilla was statistically analysed on the 4–10th antennal segments of the male click beetle Agriotes obscurus (Coleoptera : Elateridae). The distribution pattern of the trichoid pheromone receptors (T2 sensilla) and the olfactory basiconic B1B2 sensilla on the antennae of male A. obscurus differs significantly from the distribution pattern of the contact chemoreceptors (T1 sensilla) and probably the non-olfactory B7 and D sensilla. A significant peculiarity of the distribution of olfactory sensilla is their location on the antennal segments as 2 separate (dorsal and ventral) fields of sensilla. The numbers of T2 and B1B2 sensilla on dorsal fields of sensilla of the 4–10th segments increase towards the apex of the antenna nearly linearly. On ventral fields of sensilla of the 4–10th antennal segments, the number of B1B2 sensilla is nearly uniform; the number of T2 sensilla in the proximal part of the antenna increases towards the apex, but on distal segments of the antenna their number stabilizes. It is characteristic of both the T2 and to B1B2 sensilla that their numbers are slightly greater on anterior than posterior sides of dorsal sensillar fields, and also greater on posterior than anterior sides of ventral sensillar fields of all antennal segments investigated. We assume that the number of olfactory sensilla on the antennae of male beetles coincides with the distribution of strength of olfactory signal on the antennae of beetles orientating in an odour plume. The distribution patterns of T2 and B1B2 sensilla of the male A. obscurus can be related to some behavioural peculiarities of olfactory orientation (walking or flying and vibrating of the antennae).</div>","PeriodicalId":100701,"journal":{"name":"International Journal of Insect Morphology and Embryology","volume":"26 2","pages":"Pages 75-83"},"PeriodicalIF":0.0,"publicationDate":"1997-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/S0020-7322(97)00013-5","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83814954","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 35

Comparative ultrastructure of the salivary glands of two phytopathogen vectors, the beet leafhopper, Circulifer tenellus (Baker), and the corn leafhopper, Dalbulus maidis DeLong and Wolcott (Homoptera : Cicadellidae) 甜菜叶蝉和玉米叶蝉(Dalbulus maidis DeLong and Wolcott)唾液腺超微结构的比较研究(同翅目:蝉科)

International Journal of Insect Morphology and Embryology Pub Date : 1997-04-01 DOI: 10.1016/S0020-7322(97)00009-3

Astri C. Wayadande , Ginger R. Baker , Jacqueline Fletcher

{"title":"Comparative ultrastructure of the salivary glands of two phytopathogen vectors, the beet leafhopper, Circulifer tenellus (Baker), and the corn leafhopper, Dalbulus maidis DeLong and Wolcott (Homoptera : Cicadellidae)","authors":"Astri C. Wayadande , Ginger R. Baker , Jacqueline Fletcher","doi":"10.1016/S0020-7322(97)00009-3","DOIUrl":"10.1016/S0020-7322(97)00009-3","url":null,"abstract":"<div>The salivary glands of 2 leafhoppers, Circulifer tenellus and Dalbulus maidis (Homoptera : Cicadellidae) were examined by light and electron microscopy. Centrally located and occupying both the head and thorax, the salivary glands consist of 2 paired parts, the accessory glands and the principal glands. In C. tenellus and D. maidis, the accessory glands are large, multicelled lobes that lie anterior to the principal gland. They join the principal glands near the common salivary duct-gland junction via a thinner tubular duct. The principal glands of both species consist of large binucleate cells that differ in cytology and arrangement. These cells are easily distinguished by unique staining characteristics. Circulifer tenellus salivary gland cells are arranged in 2 lobes, the anterior lobe, made up of 3 concentric rings around the salivary duct and the posterior lobe, arranged in a loose pyramid extending above the foregut. Dalbulus maidis glands are similarly organized around the salivary duct.</div>","PeriodicalId":100701,"journal":{"name":"International Journal of Insect Morphology and Embryology","volume":"26 2","pages":"Pages 113-120"},"PeriodicalIF":0.0,"publicationDate":"1997-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/S0020-7322(97)00009-3","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72772775","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 38

Fine structure of the eggshell of Ommatissus binotatus Fieber (Homoptera, Auchenorrhyncha, Tropiduchidae) 双趾大翅蝽(同翅目，长翅蝽科，长翅蝽科)蛋壳的精细结构

International Journal of Insect Morphology and Embryology Pub Date : 1997-04-01 DOI: 10.1016/S0020-7322(97)00012-3

Adalgisa Guglielmino , Anna Rita Taddei , Marcella Carcupino

引用次数: 6