Results 111 to 120 of about 1,039 (132)
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Keratinization of the epidermis of the Australian lungfish Neoceratodus forsteri (dipnoi)
Journal of Morphology, 2003AbstractThe differentiation of the epidermis in sarcopterigian fish may reveal some trend of keratinization followed by amphibian ancestors to adapt their epidermis to land. Therefore, the process of keratinization of the epidermis of the Australian lungfish Neoceratodus forsteri was studied by histochemistry, electron microscopy, and keratin ...
Lorenzo, Alibardi, Jean M P, Joss
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General and Comparative Endocrinology, 1999
The Australian lungfish Neoceratodus forsteri, a facultative air breather, is considered to be the most primitive of the extant Dipnoi and so occupies a uniquely important evolutionary position in the transition from fish to tetrapods. Insulin was isolated from an extract of the pancreas of N. forsteri and its primary structure established as: A-Chain,
J M, Conlon, Y, Basir, J M, Joss
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The Australian lungfish Neoceratodus forsteri, a facultative air breather, is considered to be the most primitive of the extant Dipnoi and so occupies a uniquely important evolutionary position in the transition from fish to tetrapods. Insulin was isolated from an extract of the pancreas of N. forsteri and its primary structure established as: A-Chain,
J M, Conlon, Y, Basir, J M, Joss
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Neoceratodus forsteri (Australian lungfish)
Trends in Genetics, 2021Manfred, Schartl, Axel, Meyer
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Scale structure in the Australian lungfish, Neoceratodus forsteri (Osteichthyes: Dipnoi).
Journal of morphology, 2016Scales of the Australian lungfish, Neoceratodus forsteri, are secreted within the dermis by a capsule of scleroblasts, and enclosed in a pouch made of collagen fibers, in contact with the epidermis over the posterior third of the scale. Each scale grows from a focus, which represents the first formed part of the scale.
Kemp, Anne, Heaslop, Meg, Carr, Andrew
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PLASMA RENIN ACTIVITY AND BLOOD CORTICOSTEROIDS IN THE AUSTRALIAN LUNGFISH NEOCERATODUS FORSTERI
Journal of Endocrinology, 1977Plasma renin activity (PRA) and blood aldosterone and deoxycorticosterone levels were measured in Australian lungfish. Plasma renin activity was depressed after intravenous infusions of iso-osmotic (0·6%) NaCl but not after hypo-osmotic (0·3%) infusions.
J R, Blair-West +6 more
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Cranial neural crest cell migration in the Australian lungfish, Neoceratodus forsteri
Evolution & Development, 2000SUMMARY A crucial role for the cranial neural crest in head development has been established for both actinopterygian fishes and tetrapods. It has been claimed, however, that the neural crest is unimportant for head development in the Australian lungfish (Neoceratodus forsteri ), a member of the group (Dipnoi) which is commonly considered to be the ...
P, Falck, J, Joss, L, Olsson
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Spawning activity of the Australian lungfish Neoceratodus forsteri in an impoundment
Journal of Fish Biology, 2014This study assessed the spawning activity of the threatened Australian lungfish Neoceratodus forsteri by measuring egg densities within the artificial habitat of a large impoundment (Lake Wivenhoe, Australia). Eggs were sampled (August to November 2009) from multiple locations across the impoundment, but occurred at highest densities in water shallower
Roberts, D. T. +4 more
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Ciliary cells in the epidermis of the larval Australian dipnoan, Neoceratodus
Zoological Journal of the Linnean Society, 1980Newly hatched Australian lungfish, Neoceratodus forsteri KrefFt, develop a ciliary current over the skin surface which continues for more than six weeks of larval life. The gill surface under the opercula also becomes ciliated. The ciliary cells producing the current are found to develop in like manner to those in several amphibian embryos and larvae ...
H. P. WHITING, Q. BONE
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Fine structure of the spermatozoon of the Australian lungfish Neoceratodus forsteri (Krefft)
Journal of Ultrastructure Research, 1971An examination of the mature spermatozoon of the Australian lungfish showed it to be distinctly divided into three parts: (a) A head, the foremost tapering end of which forms an acrosome; a very elongated nucleus lies behind the acrosome; two rod-shaped structures extend from the point of the acrosome backward longitudinally through about 4/5 of the ...
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The biology of the australian lungfish,Neoceratodus forsteri (krefft 1870)
Journal of Morphology, 1986The literature on the biology of the Australian lungfish, Neoceratodus forsteri (Krefft, 1870), over the past 115 years is reviewed. Relevant unpublished information on the habits, environment, and distribution of the lungfish is included. Topics covered are the discovery and taxonomic position of the species, the appearance and habits of adults and ...
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