Abstract:
:The appearance, cellular distribution, and changes of sugar residues during tooth development in adults of the polyphyodont, Liolaemus gravenhorsti, were investigated by using horseradish-peroxidase-conjugate lectins (lectin-HRP). With Con A (Canavalia ensiformis), the ameloblasts (late bell stage) show granular supranuclear positivity and also at the Golgi zone and on their tomes process. Reactivity also appears at the apical surface of the odontoblasts and odontoblastic process. With WGA (Triticum vulgaris), the tooth germs (late bell stage) show cytoplasmatic granular positivity in the ameloblast cells, Golgi regions, and in a lesser extent of the cytoplasm. Also, the apical surface and the odontoblastic process react. WGA reaction is depressed following sialidase treatment. The significance in tooth germs of α-D-mannose, α-D-glucose as well as β-D-N-acetylglucosamine and sialic acid is difficult to ascertain. These oligosaccharides may have some significance in odontogenesis. In fact, Con A-HRP- and WGA-HRP-binding components in ameloblasts and odontoblasts may be functionally related to molecules that are thought to contribute to odontogenesis in lizards. © 1994 Wiley-Liss, Inc.
journal_name
J Morpholjournal_title
Journal of morphologyauthors
Lemus D,Cabello R,Lemus R,Soto M,Fuenzalida Mdoi
10.1002/jmor.1052220309subject
Has Abstractpub_date
1994-12-01 00:00:00pages
327-335issue
3eissn
0362-2525issn
1097-4687journal_volume
222pub_type
杂志文章abstract::The structures and distribution of encapsulated muscle receptors were examined in serial transverse sections of flexor carpi radialis in the adult cat. Four types of receptors (muscle spindles, Golgi tendon organs, paciniform, and Pacinian corpuscles) were identified. Their structures resembled those encountered in ot...
journal_title:Journal of morphology
pub_type: 杂志文章
doi:10.1002/jmor.1051830102
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abstract::The surface of a mature, pelagic C-O sole egg is composed of polygonal chambers having four to eight sides, most of which are hexagonally shaped. This honeycomb pattern initially appears on primary oocytes as a thin layer of compact, electron-dense material. Discrete thickenings begin to develop on the envelope of per...
journal_title:Journal of morphology
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doi:10.1002/jmor.1051780305
更新日期:1983-12-01 00:00:00
abstract::The ovarian follicles of Ctenosaura pectinata exhibit a clear seasonal cycle in morphology. Early in development, each oocyte is surrounded by a granulosa composed of a single layer of cuboidal or squamous cells and thin thecal layers. As folliculogenesis progresses, the granulosa becomes multilayered and composed of ...
journal_title:Journal of morphology
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journal_title:Journal of morphology
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abstract::Fourteen species of leiognathid fishes (Perciformes, Leiognathidae) from the Philippine Islands, Thailand, Japan, Indonesia, and Palau were examined for accessory secondary sexual dimorphism. Thirteen species exhibit either external dimorphism (a clear patch of skin on the flanks of males, a large clear patch of skin ...
journal_title:Journal of morphology
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journal_title:Journal of morphology
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journal_title:Journal of morphology
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journal_title:Journal of morphology
pub_type: 杂志文章
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更新日期:1999-03-01 00:00:00
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journal_title:Journal of morphology
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journal_title:Journal of morphology
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更新日期:2002-08-01 00:00:00
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journal_title:Journal of morphology
pub_type: 杂志文章
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更新日期:2008-09-01 00:00:00
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journal_title:Journal of morphology
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更新日期:2005-05-01 00:00:00
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journal_title:Journal of morphology
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更新日期:2018-11-01 00:00:00
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journal_title:Journal of morphology
pub_type: 杂志文章
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更新日期:1982-11-01 00:00:00
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journal_title:Journal of morphology
pub_type: 杂志文章
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journal_title:Journal of morphology
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更新日期:1990-10-01 00:00:00
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journal_title:Journal of morphology
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更新日期:2011-09-01 00:00:00
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journal_title:Journal of morphology
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更新日期:1984-06-01 00:00:00
abstract::Knowledge of oocyte development and the early differentiation of the germ layers in monotremes stems largely from two articles by J. P. Hill and T. Thomson Flynn. The completeness of their account was due to the large series of echidna ovaries and eggs collected on Tasmania by Flynn, an Australian biologist of whom a ...
journal_title:Journal of morphology
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journal_title:Journal of morphology
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更新日期:2011-05-01 00:00:00
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journal_title:Journal of morphology
pub_type: 杂志文章
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journal_title:Journal of morphology
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更新日期:1988-10-01 00:00:00
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journal_title:Journal of morphology
pub_type: 杂志文章
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更新日期:1993-03-01 00:00:00
abstract::The uptake and retention of radiolabeled estradiol by both the male and female reproductive organs were examined in the baboon. Two male and two female baboons were injected intracardially with 1 microgram/kg body weight of 3H-estradiol and two animals, one male and one female, were injected with both labeled and 100 ...
journal_title:Journal of morphology
pub_type: 杂志文章
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更新日期:1982-05-01 00:00:00
abstract::The ultrastructure of five epithelial cellular types is described. (1) Absorptive-storing cells possess a striated border and accumulate lipids and glycogen. They also contain an apical multivesicular complex and numerous membrane-bound PAS-positive granules of unknown significance. (2) Zymogenic cells contain numerou...
journal_title:Journal of morphology
pub_type: 杂志文章
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更新日期:1989-11-01 00:00:00
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journal_title:Journal of morphology
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journal_title:Journal of morphology
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更新日期:2003-04-01 00:00:00
abstract::To date, the phylum Cycliophora comprises only one described extant species of acoelomate marine invertebrates, Symbion pandora. Adult specimens live commensally on the mouthparts of the Norwegian lobster, Nephrops norvegicus. Its complicated life cycle includes an asexually produced Pandora larva and a sexually produ...
journal_title:Journal of morphology
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更新日期:2005-08-01 00:00:00