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Cyclic layer deposition in the cockroach (Blaberus craniifer) endocuticle: a circadian rhythm in leg pieces cultured in vitro

, : Cyclic layer deposition in the cockroach (Blaberus craniifer) endocuticle: a circadian rhythm in leg pieces cultured in vitro. Journal of Insect Physiology 41(2): 153-161

Pieces from hind tibiae of freshly moulted imaginal cockroaches were cultured in vitro. In most pieces endocuticle was deposited in vitro. This endocuticle showed either a multilamellate or a "circadian-like" structure. The latter type consisted of double layers each of them being composed of one lamellate and one nonlamellate layer, and thus resembled the in vivo structure of endocuticle deposited in the cockroach legs. Circadian-like endocuticle was deposited almost exclusively around the base of the spines. The number of double layers never exceeded the number of days in vitro; frequently, however, it was smaller. In order to estimate the frequency of the deposition rhythm of circadian-like endocuticle, exogenous time marks were set by autoradiographic labelling with 3H-N-acetyl-D-glucosamine. Largely independent of the temperature applied, the frequency was about one double layer deposited per day. Thus, it seems that in vitro deposition of endocuticle double layers is controlled by a circadian clock. It is supposed that the clock operating in vitro is localized in the epidermis.

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Accession: 002588617

DOI: 10.1016/0022-1910(94)00092-u

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Kiyomoto, S.; Yamasaki, M., 1999: Size dependent changes in habitat, distribution and food habit of juvenile disc abalone Haliotis discus discus on the coast of Nagasaki Prefecture, southwest Japan. Catch of the disc abalone Haliotis discus discus has been decreasing from 1985 in spite of stock enhancement efforts, such as the release of hatchery reared seeds and the control of catch. In order to optimize the efforts to restore this resource,...

Veinger, GN., 1980: Intraspecies structural data of sperm whales in the north Pacific. International Whaling Commission Report of the Commission, 103-105 Special issue 2

SJOQVIST, F., 1963: The correlation between the occurrence and localization of acetylcholinesterase-rich cell bodies in the stellate ganglion and the outflow of cholinergic sweat secretory fibres to the fore paw of the cat. Acta Physiologica Scandinavica 57: 339-351

Renaud, WE.; Wapple, GJ.; Wapple, RD., 1988: A summary of Saskatchewan Christmas bird counts 1942-1986. Blue Jay, 461: 29-33

Miambi, E.G.yot, J.; Ampe, F., 2003: Identification, isolation and quantification of representative bacteria from fermented cassava dough using an integrated approach of culture-dependent and culture-independent methods. The use of denaturing gradient gel electrophoresis (DGGE) and traditional culture-depending methods for examining the bacterial community of traditional cassava starch fermentation were investigated. It appeared that DGGE profiles of total DNA of...

Scherler, D.; Bookhagen, B.; Strecker, M.R., 2008: Role of the winter westerlies in shaping the western flank of the Tibetan Plateau; new insights from glacier-surface velocities. Geophysical Research Abstracts 10

Müller, M.; Moser, R.; Cheneval, D.; Carafoli, E., 1985: Cardiolipin is the membrane receptor for mitochondrial creatine phosphokinase. Treatment of rat heart mitochondria with phosphate or mersalyl releases a number of proteins, including the mitochondrial creatine kinase (mt-CK). Sodium dodecyl suflate-polyacrylamide gel electrophoresis of the released proteins showed that phosp...

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Prabhakar M.; Leelavathi P.; Kumar B.K.V.; Jameel K., 1990: Sem studies on seeds of indian portulacaceae and their taxonomic significance. Seeds of the Indian Portulacaceae were examined under SEM. Overall shape, colour, size of the seed and anticlinal walls, surface ornamentation, arrangement, distribution and frequency of cells forming the outer most layer of the seed coat are desc...

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