International Journal of Insect Morphology and Embryology最新文献_第10页

Ultrastructure of reproductive accessory glands in the female sandfly Phlebotomus perniciosus Newstead (Diptera : Psychodidae) 雌性白蛉生殖副腺的超微结构(双翅目:白蛉科)

International Journal of Insect Morphology and Embryology Pub Date : 1997-04-01 DOI: 10.1016/S0020-7322(97)00007-X

Anna Maria Fausto , Cristina Khoury , Michele Maroli , Massimo Mazzini

{"title":"Ultrastructure of reproductive accessory glands in the female sandfly Phlebotomus perniciosus Newstead (Diptera : Psychodidae)","authors":"Anna Maria Fausto , Cristina Khoury , Michele Maroli , Massimo Mazzini","doi":"10.1016/S0020-7322(97)00007-X","DOIUrl":"10.1016/S0020-7322(97)00007-X","url":null,"abstract":"<div><p>The paired female accessory glands of <em>Phlebotomus perniciosus</em> (Diptera : Psychodidae) were investigated by light microscopy, and by scanning and transmission electron microscopy. These glands undergo morphological and functional changes during oocyte development. After the blood meal, the monostratified glandular epithelium differentiates and starts to secrete. Well-developed rough endoplasmic reticulum, Golgi complexes, and membrane-bounded exocytic vesicles suggest that these secretory cells are involved in protein synthesis. As the secretory cells differentiate, the glandular lumen increases in size and fills with secretory material, consisting of globular granules of different sizes in an amorphous electron-dense matrix. The granules have an electron-translucent core and an electron-dense cortex. The morphological characteristics of the glandular epithelium and the functional role of the glands are discussed in relation to their possible contribution to the reproductive process.</p></div>","PeriodicalId":100701,"journal":{"name":"International Journal of Insect Morphology and Embryology","volume":"26 2","pages":"Pages 121-128"},"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)00007-X","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75039254","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: 11

Axonal composition of esophageal nerve in the corn earworm moth, Helicoverpa zea (boddie) (Lepidoptera : Noctuidae) 玉米耳蛾食道神经轴突组成(鳞翅目:夜蛾科)

International Journal of Insect Morphology and Embryology Pub Date : 1997-04-01 DOI: 10.1016/S0020-7322(97)00010-X

Elena G. Golubeva , Ashok K. Raina

引用次数: 2

Fine structure of the male reproductive organs of the western flower thrips Frankliniella occidentalis (Pergande) (Thysanoptera: Thripidae) 西部花蓟马Frankliniella occidentalis (Pergande)雄性生殖器官的精细结构(蓟翅目:蓟科)

International Journal of Insect Morphology and Embryology Pub Date : 1997-04-01 DOI: 10.1016/S0020-7322(97)00011-1

Romano Dallai , Giovanna Del Bene , Pietro Lupetti

{"title":"Fine structure of the male reproductive organs of the western flower thrips Frankliniella occidentalis (Pergande) (Thysanoptera: Thripidae)","authors":"Romano Dallai , Giovanna Del Bene , Pietro Lupetti","doi":"10.1016/S0020-7322(97)00011-1","DOIUrl":"10.1016/S0020-7322(97)00011-1","url":null,"abstract":"<div><p>The male reproductive organs of the western flower thrips <em>Frankliniella occidentalis</em> (Thysanoptera: Thripidae) consist of testes, deferent ducts, seminal vesicles and accessory glands. The first 3 have intermediate muscle fibers and pigment cells external to the epithelium, but the accessory glands do not show these cells. The accessory gland cells are engaged in active secretion into the ejaculatory bulb where the spermatozoa are stored. The epithelial cells of the ejaculatory bulb are involved in secretion and osmoregulation. An ejaculatory duct arising from this bulb posteriorly runs the length of a fusiform structure before entering the phallus. This latter consists, from front to back, of: (1) a dorsal phallobase, containing cells with large intercellular lacunae; (2) a medial phallotheca, whose cavity may be filled with hemolymph when the phallus is protruded at mating or with endothecal cuticular folds when the phallus is at rest; and (3) a ventral <em>ductus conjunctus</em> containing spermatozoa. This duct is invaginated ventrally into the phallotheca at the posterior end of the copulatory organ. Contractions of a series of abdominal muscle fibers may convey the hemolymph from the phallobase lacunae to the endotheca, causing the latter to evaginate.</p></div>","PeriodicalId":100701,"journal":{"name":"International Journal of Insect Morphology and Embryology","volume":"26 2","pages":"Pages 97-112"},"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)00011-1","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84621613","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: 8

Antennal sensilla of triatominae (Hemiptera, Reduviidae): A comparative study of five genera 刺蝽科触角感受器(半翅目，刺蝽科):五属比较研究

International Journal of Insect Morphology and Embryology Pub Date : 1997-04-01 DOI: 10.1016/S0020-7322(97)00014-7

Silvia S. Catalá

引用次数: 87

Head capsule concavities accommodating the antennal bases in Hymenoptera pupating in wood: Possible emergence-facilitating adaptations 膜翅目昆虫在木材中化蛹时的头囊凹陷容纳触角基部:可能的紧急适应

International Journal of Insect Morphology and Embryology Pub Date : 1997-04-01 DOI: 10.1016/S0020-7322(97)00003-2

Lars Vilhelmsen

引用次数: 19

A trypsin-degradable protein agglutinates fishfly sperm-bundles (Megaloptera: Corydalidae) 一种能凝集鱼蝇精束的胰蛋白酶可降解蛋白(大翅目:斑蛉科)

International Journal of Insect Morphology and Embryology Pub Date : 1997-01-01 DOI: 10.1016/S0020-7322(96)00023-2

Fumio Hayashi

引用次数: 13

Ultrastructural elements of CNS development in the Stage 15 Drosophila (Diptera: Drosophilidae) embryo 15期果蝇(双翅目:果蝇科)胚胎中枢神经系统发育的超微结构因素

International Journal of Insect Morphology and Embryology Pub Date : 1997-01-01 DOI: 10.1016/S0020-7322(97)00004-4

Stanley D. Carlson , Susan L. Hilgers

引用次数: 3

Revaluation of the prothoracic pleuron of the membracidae (Homoptera): The presence of an epimeron and a subdivided episternum in Stictocephala bisonia Kopp and Yonke, Oxyrhachis taranda (Fabr.), and Centrotus cornutus (L.)

International Journal of Insect Morphology and Embryology Pub Date : 1997-01-01 DOI: 10.1016/S0020-7322(97)00002-0

Ulrich E. Stegmann

引用次数: 3

Pattern of bacteriocyte formation in Periplaneta americana (L.) (Blattaria: Blattidae) 美洲大蠊(blattia: blattae)细菌细胞形成模式的研究

International Journal of Insect Morphology and Embryology Pub Date : 1997-01-01 DOI: 10.1016/S0020-7322(97)88103-2

Simonetta Lambiase , Aldo Grigolo, Ugo Laudani , Luciano Sacchi , Baccio Baccetti

引用次数: 13

Development of female accessory glands of Chrysomya putoria (Wiedemann) (Diptera: Calliphoridae) during oogenesis 唇金蝇(双翅目:唇金蝇科)雌副腺的发育

International Journal of Insect Morphology and Embryology Pub Date : 1997-01-01 DOI: 10.1016/S0020-7322(96)00011-6

Guido Tirone , Rita M.P. Avancini

{"title":"Development of female accessory glands of Chrysomya putoria (Wiedemann) (Diptera: Calliphoridae) during oogenesis","authors":"Guido Tirone , Rita M.P. Avancini","doi":"10.1016/S0020-7322(96)00011-6","DOIUrl":"10.1016/S0020-7322(96)00011-6","url":null,"abstract":"<div><p>Females of <em>Chrysomya putoria</em> (Diptera: Calliphoridae) have two sexual accessory glands, which are tubular and more dilated at the distal extremity. The glands open independently into the common oviduct. Two morpho-physiological regions were distinguished in the longitudinal semi-thin sections of the glands. The secretory region is constituted by three layers: a cuticular intima, lining the lumen, followed by a layer of small cells, and then a layer of very large secretory cells. The ductal region of the gland presents only two layers: the cuticular intima and a cellular layer. In both regions a basement membrane is present. Each secretory cell has in its apical region a reservoir, which enlarges throughout oogenesis; in its basal region there is a large nucleus. The ductal cells are cylindrical and smaller than the secretory cells. The glandular secretion is synthesized in the cytoplasm of the secretory cells, stored and/or modified in the reservoir, then drained to the lumen through an end apparatus seen in the apical region of the secretory cell. Histochemical tests indicate that this secretion is a glycoprotein. Measurements of the glands from females at different physiological conditions and fed on different diets correlate with the results obtained for changes in the ovary during oogenesis. Cell number averaged 561.2 ± 77.54 per gland. There was no increase in cell number during oogenesis.</p></div>","PeriodicalId":100701,"journal":{"name":"International Journal of Insect Morphology and Embryology","volume":"26 1","pages":"Pages 1-7"},"PeriodicalIF":0.0,"publicationDate":"1997-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/S0020-7322(96)00011-6","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82988525","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: 8