@article {1728, title = {Parvalbumin-immunoreactive proteins in the nervous system of planarians}, journal = {Cell Mol Neurobiol}, volume = {15}, year = {1995}, month = {1995 Aug}, pages = {401-10}, abstract = {

1. Using immunological methods, we have identified parvalbumin-like material in the triclade flatworms, Polycelis nigra, Polycelis auriculata, Crenobia alpina, Dugesia tahitiensis, and Dugesia polychroa. 2. Western immunoblot analysis of these five species revealed heat stable parvalbumin-immunoreactive proteins between 32 kD and 44 kD. 3. Proteins at 19 and 32 kD revealed intense labeling with 45Ca2+. 4. Double immunodiffusion of planarian supernatants showed complete fusion of precipitates, indicating immunological relatedness of the parvalbumin-like material among the species investigated. 5. Immunocytochemical studies exhibit parvalbumin-immunoreactive material exclusively in neurons supporting the notion of an early evolutionary appearance of these proteins in the nervous system.

}, keywords = {Animals, Blotting, Western, Calcium-Binding Proteins, Immunohistochemistry, Molecular Weight, Nervous system, Parvalbumins, planarians}, issn = {0272-4340}, author = {Hutticher, A and Kerschbaum, H H and Kainz, V and Bito, M and Hermann, A} } @article {FWB:FWB21, title = {The reaction time of leech and triclad species to crushed prey and the significance of this for their coexistence in British lakes}, journal = {Freshwater Biology}, volume = {34}, number = {1}, year = {1995}, pages = {21{\textendash}28}, publisher = {Blackwell Publishing Ltd}, abstract = {1. Three species of leeches, Erpobdella octoculata, Glossiphonia complanata and Helobdella stagnalis, and four species of triclads, Polycelis nigra, P. tennis, Dugesia polychroa and Dendrocoelum lacteum, commonly coexist on stony shores in productive British lakes. All species are food limited and there is much overlap in their diet. For both leech and triclad communities, coexistence of species is through the occurrence of food refuges. Leeches are more successful than triclads at capturing live prey, whereas both groups feed on damaged prey, comprising incapacitated, live or dead animals that are leaking body fluids. If triclads are better than leeches at exploiting damaged prey, this could be a mechanism for their coexistence.2. Laboratory experiments investigated the comparative speeds at which leeches and triclads responded to crushed prey. Young and adult predators were offered a crushed specimen of the oligochaete Tubifex tubifex, the snail Lymnaea peregra, the crustacean Asellus aquaticus or the chironomid Chironomus sp., and their reaction times recorded. These four prey groups constitute the main diet of the predators in the field. Only D. polychroa and D. lacteum showed a significantly different reaction time between young and adults to crushed prey, and the reason for this is unclear. All predators, except H. stagnalis and D. polychroa, showed a difference in reaction time to the four types of prey, presumably a consequence of differences in both the {\textquoteleft}quality{\textquoteright} and {\textquoteleft}concentration{\textquoteright} of the different prey fluids, and there were some differences between predators in their speed of reaction to the same prey type. The following sequence, from fastest to slowest, in general reaction time to prey was obtained: E. octoculata, D. polychroa, P. tenuis, D. lacteum, P. nigra, H. stagnalis and G. complanata.3. The location of the damaged food by the predators can be explained partly in terms of their foraging behaviour, with E. octoculata, D, polychroa and P. tenuis exhibiting a more seek-out strategy than other species which have a more sit-and-wait behaviour, and partly on the level of sophistication of their chemosensory system used to detect leaked prey fluids. This system is highly developed in triclad species but poorly developed in leeches.4. In a second type of experiment in which prey, L. peregra, A. aquaticus or Chironomus sp., were offered at different time intervals after crushing to H, stagnalis and P. tenuis, few predators fed on food crushed for 24 h or longer, although a few leeches fed on Chironomus crushed for up to 72 h.5. It is concluded that coexistence of leech and triclad species on stony shores in lakes is assisted by partitioning of food on a damaged or live basis.}, issn = {1365-2427}, doi = {10.1111/j.1365-2427.1995.tb00419.x}, url = {http://dx.doi.org/10.1111/j.1365-2427.1995.tb00419.x}, author = {SEABY, R.M.H. and MARTIN, A.J. and YOUNG, J.O.} } @article {1585, title = {Identification of planarian homeobox sequences indicates the antiquity of most Hox/homeotic gene subclasses}, volume = {92}, year = {1995}, month = {1995//}, url = {http://dx.doi.org/10.1073/pnas.92.16.7227}, author = {Balavoine, G. and Telford, M. J.} } @article {37, title = {Predation behaviour of land planarians}, journal = {Hydrobiologia}, volume = {305}, year = {1995}, month = {1995}, pages = {105-111}, chapter = {105}, author = {Robert E. Ogren} } @article {369, title = {Two new freshwater cavernicolous planarians (Turbellaria, Tricladida, Paludicola) from Sulawesi (Celebes), Indonesia}, journal = {Special bulletin of the Japanese Society of Coleopterology}, volume = {4}, year = {1995}, month = {03/1995}, pages = {81-103}, author = {Masaharu Kawakatsu and Robert W. Mitchell} } @article {springerlink:10.1007/BF00036366, title = {A review of chromosomal variation in Dugesia japonica and D. ryukyuensis in the Far East}, journal = {Hydrobiologia}, volume = {305}, year = {1995}, note = {10.1007/BF00036366}, pages = {79-84}, publisher = {Springer Netherlands}, abstract = {{The chromosome numbers of Dugesia japonica Ichikawa et Kawakatsu, 1964, are n = 8}}, issn = {0018-8158}, url = {http://dx.doi.org/10.1007/BF00036366}, author = {Tamura, Sachiko and Oki, Iwashiro and Masaharu Kawakatsu} } @article {springerlink:10.1007/BF00036363, title = {Taxonomy and geographical distribution of Dugesia japonica and D. ryukyuensis in the Far East}, journal = {Hydrobiologia}, volume = {305}, year = {1995}, note = {10.1007/BF00036363}, pages = {55-61}, publisher = {Springer Netherlands}, abstract = {

{Dugesia japonica Ichikawa et Kawakatsu, 1964, is a common and polymorphic species of freshwater planarian distributed widely in the Far East. In 1976 the geographic populations were separated into 2 subspecies (D.j.japonica and D.j. ryukyuensis). The taxonomy of this species is reconsidered once again from the morphological, anatomical, histological, and karyological viewpoints. From the result of these studies, D.j. ryukyuensis is elevated to the rank of species: D. ryukyuensis Kawakatsu, 1976. D. japonica (n = 8}

}, issn = {0018-8158}, url = {http://dx.doi.org/10.1007/BF00036363}, author = {Masaharu Kawakatsu and Oki, Iwashiro and Tamura, Sachiko} } @article {88, title = {Taxonomy, ecology, and karyology of a new species of Phagocata from Spain, with a discussion on the phylogenetic systematics of the genus Phagocata s.l. (Platyhelminthes, Tricladida, Paludicola)}, journal = {Canadian Journal of Zoology}, volume = {73}, year = {1995}, pages = {557-568}, chapter = {557}, author = {Ronald Sluys and Maria Ribas and Jaume Bagu{\~n}{\`a}} }