...Akira Sakurai; Jerrel L. Wilkens SUMMARY In the crustacean neurogenic heart, the cardiac ganglion (CG) acts as a peripherally located central pattern generator (CPG) by producing rhythmic motor output that initiates the heartbeat. In the isopod Ligia , the CG consists of six electrically coupled...

...Monica Hagedorn; Andreas Ziegler SUMMARY In terrestrial isopods, large amounts of Ca 2+ are transported across anterior sternal epithelial cells during moult-related deposition and resorption of CaCO 3 deposits. Because of its toxicity and function as a second messenger, resting cytosolic Ca 2...

...Masazumi Iwasaki; Ayako Ohata; Yoshinori Okada; Hideo Sekiguchi; Akiyoshi Niida SUMMARY The relationship between segmental mobility and the organisation of thoracic stretch receptors was examined in the deep-sea isopod Bathynomus doederleini , which shows a developed adaptive behaviour during...

...Ute Postel; Wilhelm Becker; Angelika Brandt; Susanne Luck-Kopp; Sven Riestenpatt; Dirk Weihrauch; Dietrich Siebers ABSTRACT The mechanism of active, osmoregulatory ion uptake was investigated in the pleopods of the marine isopod Idotea baltica (Pallas). Using isolated split half-podites of isopods...

...N. Justin Marshall; Carol Diebel ABSTRACT Deep-sea isopods of the family Munnopsidae exhibit four modes of swimming: forward striding, slow backward pedalling, fast backward pedalling and escape, the first two of which use asymmetric phases of leg movement. Instead of moving the left and right...

...Jonathan C. Wright; Michael J. O’Donnell; Johanna Reichert ABSTRACT The effects of ammonia loading in the terrestrial isopod Porcellio scaber were studied by exposing animals to atmospheres of high . Isopods show a remarkable tolerance of elevated ambient , with an LD50 of 89 Pa for a 7-day...

... preadaptions favouring evolution of vapour absorption in the Oniscidea are discussed. 14 11 1991 © 1992 by Company of Biologists 1992 isopod pleoventral chamber (PV) pleon fluid osmolality ion concentration water vapour absorption Porcellio scaber A capacity for water vapour...

...A. Niida; K. Sadakane; T. Yamaguchi 31 10 1989 © 1990 by Company of Biologists 1990 stretch receptor tonic response isopod Crustacea Little is known of the morphology and physiology of stretch receptors in isopods ( Alexandrowicz, 1967 ; Alexander, 1971 ). The pill...

... to the respiratory function of the pleopods. * Present address: Department of Physiology and Cell Biology, University of Kansas, Lawrence, KS 66045, USA. 29 2 1988 © 1988 by Company of Biologists 1988 Idotea isopod kinematics locomotion propulsion pleopods swimming...