Zobrazeno 1 - 10
of 16
pro vyhledávání: '"Th. E. Sprey"'
Autor:
Th. E. Sprey
Publikováno v:
Acta Biotheoretica. 41:481-494
In search of general generative principles I start from the postulate of a reality which comprises both materialistic and psychic aspects. This overall reality, described by others as the world of archetypes, is not directly accessible to sensory per
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4f469d9a30e3bb6b174fe5470e024aa8
https://doi.org/10.1007/bf00709378
https://doi.org/10.1007/bf00709378
Autor:
Lois A. Abbott, Th. E. Sprey
Publikováno v:
Roux's Archives of Developmental Biology. 198:448-459
A number of parameters characteristic of the wing margin precursor in imaginal discs of Drosophila are known: the zone of non-proliferating cells or ZNC (O'Brochta and Bryant 1985), aldehyde oxidase (AO) and other enzyme staining patterns (Sprey et a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d2c80b8171f92022cf67f8ed8a1b78f5
https://doi.org/10.1007/bf00399055
https://doi.org/10.1007/bf00399055
Autor:
Gregory S. Turenchalk, Thomas B. Kornberg, G. Packert, M. Sawyer, E. Gustavson, J. A. Mack, David T. Kuhn, Th E. Sprey
Publikováno v:
Development (Cambridge, England). 116(1)
Whereas the segmental organization of the thorax and anterior abdomen is morphologically delineated in both the Drosophila larva and adult, segments in the head and caudal regions lack such well-defined boundaries. Consequently, the organization of t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a792a62190c3171bac8645ef1d07e8fb
https://pubmed.ncbi.nlm.nih.gov/1362380
https://pubmed.ncbi.nlm.nih.gov/1362380
Autor:
David T. Kuhn, Th. E. Sprey
Publikováno v:
Genetics. 115:283-294
The aldehyde oxidase (Aldox) distribution pattern was determined for wing discs of partial hybrids between D. melanogaster and D. simulans. In these animals the regulation of Aldox activity is not uniform over the disc epithelium as both cis-dominant
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::67ca0a8f81bce92d56c054302528547f
https://doi.org/10.1093/genetics/115.2.283
https://doi.org/10.1093/genetics/115.2.283
Publikováno v:
Developmental Genetics. 2:75-87
In a study of the regulation of enzyme patterns in imaginal discs the aldehyde oxidase pattern was determined for some homoeotic mutations of D. melanogaster. Earlier indications that suggested that this pattern follows the determinitive state of com
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::30d6689fef5eeaccc01aac84e5e836e9
https://doi.org/10.1002/dvg.1020020107
https://doi.org/10.1002/dvg.1020020107
Autor:
Th. M. van Ruiten, Th. E. Sprey
Publikováno v:
Zeitschrift f�r Zellforschung und mikroskopische Anatomie. 147:373-400
The ultrastructure of the imaginal leg disk of Calliphora has been studied at three stages of the third larval instar. Several cell types can be distinguished: epithelial cells of the disk proper, the peripodial membrane and the apodemes; cells of th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6cabb01e2deeb5e5eb251cc5db6a53bc
https://doi.org/10.1007/bf00307472
https://doi.org/10.1007/bf00307472
Autor:
Th. E. Sprey
Publikováno v:
Wilhelm Roux's Archives of Developmental Biology. 183:1-15
In the imaginal discs ofMusca domestica, Drosophila melanogaster, D. simulans, D. hydei, andZaprionus spec. the enzyme aldehyde oxidase (AO) appeared in a clear-cut pattern. In the leg and eye-antennal discs of these species this pattern shows a high
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4a1f125a1b42ac9511ce476bbd77a75f
https://doi.org/10.1007/bf00849031
https://doi.org/10.1007/bf00849031
Autor:
Th. E. Sprey
Publikováno v:
Netherlands Journal of Zoology. 20:419-432
1. In the imaginal disks two dephosphorylating enzymes can be demonstrated. Firstly a 5'-nucleotidase, which splits AMP, dAMP and ATP; and secondly an enzyme which splits β-Glyc.-P., probably a non-specific acid phosphatase. 2. The localization of 5
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e467a6043c49f3facc0f17f56eea7081
https://doi.org/10.1163/002829670x00204
https://doi.org/10.1163/002829670x00204
Autor:
Th. E. Sprey, Mariette Oldenhave
Publikováno v:
Netherlands Journal of Zoology. 24:291-310
(1) Various fragments of the wing disk of the mature Calliphora erythrocephala larva were implanted into host larvae of the same age. Since mature imaginal disks exhibit a mosaic determination pattern, it is possible to correlate certain adult struct
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0dee4df411863832dd01f7bfb9a98098
https://doi.org/10.1163/002829674x00084
https://doi.org/10.1163/002829674x00084
Autor:
Th. E. Sprey
Publikováno v:
Netherlands Journal of Zoology. 20:253-278
1. A detailed description is given of the histology of the imaginal disks of legs, wings, halteres, and eye-antennae during their development. In the third instar several cell types can be distinguished in all disks. 2. In the third instar a large nu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::28f9dc6481f06a9553f3c1cae19f0181
https://doi.org/10.1163/002829670x00033
https://doi.org/10.1163/002829670x00033